PATENT ABSTRACT
An electronic measuring device that includes a transceiver device, a microprocessor operatively connected to the transceiver device, as well as a memory, an electronic output device, and a plurality of input mechanisms, all of which are operatively connected to the microprocessor. In some embodiments, the microprocessor may be programmed with logic that allows a user of the device to take and manipulate measurements using a menu-driven procedure by using the input mechanisms to select and activate desired operations.

PATENT DESCRIPTION
This application is a regular filed application of and claims, for the purposes of priority, the benefit of U.S. Provisional Application Ser. No. 60/590,040, entitled “Electronic Length Measuring Device,” which was filed on Jul. 21, 2004, which is owned by the assignee of this application, and which this application hereby expressly incorporates by reference herein in its entirety. 

   TECHNICAL FIELD 
   This disclosure relates generally to measuring devices, such as measuring tapes, and more specifically to electronic measuring devices. 
   BACKGROUND 
   Electronic tape measures, such as sonic tape measures, have been developed to simplify the task of measuring distances, for example, for estimating the size of a room, without having to physically stretch a tape measure across the distance being measured. 
   With advancements in electronics, it is possible to provide many functions, such as calculations for area and volume, into a sonic tape measure. However, with many functions often comes a need for many buttons for an end user to select a desired function. This adds complexity and cost to the device, and may make it cumbersome to operate. 
   In addition, hand-held device such as sonic tape measures, stud finders, and laser levels, often have a desirable feature of a belt clip for hanging the device from a belt. However, the belt clip often provides an uneven surface that may not be desirable from a utilitarian standpoint, such as when it is desirable to have the device sit level on a surface such as a table for making measurements, or to take up a minimal amount of space in a storage container such as a tool box or drawer. In addition, the belt clip may interfere with the operation of electronic handheld devices, such as those that include buttons and/or switches, especially when it is necessary to have a large number of buttons and/or switches for operation of an electronic handheld device. 
   Accordingly, there is a need for an improved sonic tape measure that is easier for an end user to operate. 
   SUMMARY 
   An improved electronic measuring device is disclosed which has a compact design, that is easy to operate, and that uses menu-driven logic to minimize the requirement for buttons and/or switches to take, store, recall, and manipulate measurements. 
   In accordance with one aspect of the invention, an electronic measuring device include a transceiver device, a microprocessor operatively connected to the transceiver device, as well as a memory, an electronic output device, and a plurality of input mechanisms, all of which are operatively connected to the microprocessor. The microprocessor may be programmed with logic that allows a user of the device to take and manipulate measurements using a menu-driven procedure by using the input mechanisms to select and activate desired operations. 
   In accordance with another aspect of the invention, the input mechanisms include a read button, at least one scroll button, and a menu/select button. The read button may be a combined power/read button. 
   In accordance with yet another aspect of the invention, the microprocessor may be programmed with logic that allows a user of the device to take distance measurements using a menu-driven procedure solely by using the menu/select button, the scroll button, and the read button to select and activate desired operations. The input mechanisms may also include a +/= button. 
   According to still another aspect of the invention, a method of taking a measurement using an electronic measuring device is provided. The electronic measuring device includes a read button, at least one scroll button, and a menu/select button as input mechanisms that are operatively connected to a microprocessor that is also operatively connected to a display device. The method includes pressing the menu/select button, pressing the scroll button until an indication is provided on the display device corresponding to a desired measurement to be taken, and pressing the read button. 
   Other features and advantages of the disclosed devices and methods will be apparent to those of ordinary skill in the art in view of the detailed description provided below which is made with reference to the attached drawings provided in illustration of one preferred embodiment. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a plan view of a measuring device in accordance with this disclosure; 
       FIG. 2  is an elevational view of the upper end of the measuring device; 
       FIG. 3  is an elevational view of the left side of the measuring device; 
       FIG. 4  is an elevational view of the right side of the measuring device; 
       FIG. 5  is an elevational view of the lower end of the measuring device; 
       FIG. 6  is an elevational view of the rear side of the measuring device; 
       FIG. 7  is an enlarged view of a display screen of the measuring device; 
       FIG. 8  is a perspective view of a portion of the measuring device, showing a retractable belt clip member in a deployed configuration; 
       FIG. 9  is a perspective view of a portion of the measuring device, showing the retractable belt clip member in a stowed configuration; 
       FIG. 10  is a perspective cross-sectional view, taken along line  10 - 10  of  FIG. 1 , of a deployment and retraction mechanism for the retractable belt clip member; and 
       FIG. 11  is a cross-sectional view, taken along line  11 - 11  of  FIG. 5 , of the deployment and retraction mechanism. 
   

   DETAILED DESCRIPTION 
   With reference initially to  FIG. 1 , an electronic tape measure  20  includes a microprocessor  21 . Operatively connected to the microprocessor may be a memory  23 , an electronic display  22 , and input mechanisms in the form of a power/read button  24 , a first scroll button  26 , a second scroll button  28 , a select button  30 , an addition or +/= button  32 , and a clear/reset button  34 . The electronic tape measure  20  may also include a retractable belt clip member  36 . 
   As shown in  FIG. 2 , the electronic tape measure  20  may include a sonic transceiver device  38  and a laser pointer device  40 , both of which may be operatively connected to the microprocessor  21 . The sonic transceiver device  38  may be adapted to use a sound signal (such as, for example, an ultrasonic signal) to measure a distance from the electronic tape measure  20  to a surface, such as a wall or ceiling of a room. The laser pointer device  40  assists the end user of the electronic tape measure  20  by providing an indication of a specific location at which a measurement is being taken, for example, a location on a wall or ceiling surface. 
   With reference again to  FIG. 1 , the electronic display  22  may include a liquid crystal display (LCD) screen  42  that has a function indication region  44 , that in  FIG. 1  displays a “V” to indicate the electronic tape measure  20  is in a volume measurement mode. The LCD screen  42  may also include a graphical icon display  46  that may indicate, for example, which measurement is to be taken by the electronic tape measure  20  when the read button is depressed. For example, a height segment “H,” a length segment “L,” or a width segment “W,” may flash on the graphical icon display  46  to indicate the respective dimension to be measured when the read button  24  is depressed. The LCD screen  42  may also include an upper numeric display region  48 , that may be used to indicate a distance measured by the electronic tape measure  20 . A unit indication region  50  may be provided on the LCD screen  42 , for example, to indicate units of measures such as feet, meters, inches, or centimeters. The LCD screen  42  may also include a lower numeric display region  52 , and a parameter region  54  that may be used to indicate that a calculated area or volume of a room being measured by the electronic tape measure  20  is being shown on the lower numeric display region  52 . 
   As shown in the side views of  FIGS. 3 and 4 , the electronic tape measure  20  may further include left and right ribbed side grip panels  56  and  58 , respectively, a front housing portion  57 , and a rear housing portion  59 . As shown in  FIG. 5 , the retractable belt clip member  36  may include ribbed base surface  60 , to facilitate deployment and retraction of the retractable belt clip member  36  by sliding the ribbed base surface  60  along the line of the directional arrow  62  shown in  FIG. 5 . As shown in  FIG. 6 , the electronic tape measure  20  may include a battery lid  64 , and an instructional label  66  on the rear of the electronic tape measure  20 . 
   With reference to  FIG. 7 , the LCD screen  42  is shown with an example of all possible display indications shown at one time (of course all such display indications would not be shown at the same time during normal use of the electronic tape measure  20 ). As shown in  FIG. 7 , the function display region  44  may include “L” for length, “A” for area, “V” for volume, “U” for selecting units, “M S ” for storing a measurement in memory, “M R ” for recalling a measurement from memory, numeric indications 1-5 to indicate five different memory locations, as well as a battery status indicator. The unit display region  50  shown in  FIG. 7  uses “IN” for inches, “FT” for feet, “YDS” for yards, “M” for meters, and “CM” for centimeters. The parameter display region  54  may show “SQ” for measuring area, (i.e., square feet or square meters) or “CU” for measuring volume (i.e., cubic feet or cubic meters). The graphic icon display region  46  may include a “+” to indicate that a measurement is being added, for example, to calculate a total square footage of multiple rooms in a dwelling. 
     FIG. 8  is a perspective view showing the retractable belt clip member  36  in a deployed configuration, and  FIG. 9  is a perspective view showing the retractable belt clip member  36  in a stowed configuration. 
     FIGS. 10 and 11  are cross-sectional views showing further detail of structure providing the mechanism for deployment and retraction of the retractable belt clip member  36 . 
   As seen in  FIG. 10 , the belt clip member  36  includes two bosses  68  (only one of which is visible in  FIG. 10 ) that each include a blind hole  70 . The front housing portion  57  includes a pair of openings  72  through which each of the bosses  70  pass. A threaded fastener  74  is threadably secured to each of the blind bores  70 , and includes a fastener head  76  that prevents the retractable belt clip member  36  from being completely removed from attachment to the front housing portion  57 . A detent protrusion  78  may be provided on the retractable belt clip member  36 , such that it mates with a corresponding deployed detent dimple  80  formed in the front housing portion  57  when the belt clip member  36  is in a deployed configuration, and that mates with a stowed detent dimple  82  also formed in the front housing portion  57 , when the belt clip member  36  is in a stowed configuration. Also, as seen in  FIG. 8 , guide slots  84  may be formed in the belt clip member  36 , to ensure that it will move from the stowed configuration to the deployed configuration and vice versa in a linear fashion and also to stabilize the belt clip member  36  in a proper position with respect to the front housing portion  57  and the rear housing portion  59 . 
   The front and rear housing portions  57  and  59  may be made from any suitable material, such as ABS plastic, and the retractable belt clip member and side grip panels  56  and  58  may also be made from any suitable material, such as ABS plastic. The buttons  24 - 34  may be made from any suitable material such as a TPR rubber material. 
   As shown in Table I below, to turn the electronic tape measure  20  on the end user may simply press and release the power/read button  24 . 
   
     
       
             
           
             
             
             
             
           
         
             
               TABLE I 
             
           
           
             
                 
             
             
               TO TURN TOOL ON 
             
           
        
         
             
               Step 
                 
                 
                 
             
             
               Number 
               Button 
               Result 
               Display 
             
             
                 
             
             
               1 
               Press 
               Unit will power up where 
               Upper Numeric 
             
             
                 
               POWER/ 
               it was just before it 
               Display Region 48: 
             
             
                 
               READ button 
               powered down. Display 
               Same as shutdown 
             
             
                 
               24 and 
               should be the same as it 
               Lower Numeric 
             
             
                 
               release. 
               was prior to shutdown. 
               Display Region 52: 
             
             
                 
                 
                 
               Same as shutdown 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Same as shutdown 
             
             
                 
             
           
        
       
     
   
   It should be noted that any software, hardware, firmware, and/or combination thereof used to implement the programming logic described herein is well within the capabilities of one of ordinary skill in the art to program, and may be stored in any computer readable memory such as on a magnetic disk, a laser disk, or other storage medium, in a RAM or ROM of a computer or processor, etc. Likewise, this programming logic may be delivered to a user, a device, or an operator workstation using any known or desired delivery method including, for example, on a computer readable disk or other transportable computer storage mechanism or over a communication channel such as a telephone line, the Internet, the World Wide Web, any other wired or wireless local area network or wide area network, etc. (which delivery is viewed as being the same as or interchangeable with providing such software via a transportable storage medium). Furthermore, this programming logic may be provided directly without modulation or encryption or may be modulated and/or encrypted using any suitable modulation carrier wave and/or encryption technique before being transmitted over a communication channel. 
   Table II sets forth the logic that may be programmed into the microprocessor  21  and a procedure that may be used to facilitate measuring a length by using the electronic tape measure  20 . 
   
     
       
             
           
             
             
             
             
           
         
             
               TABLE II 
             
           
           
             
                 
             
             
               TO MEASURE A LENGTH 
             
           
        
         
             
               Step 
                 
                 
                 
             
             
               Number 
               Button 
               Result 
               Display 
             
             
                 
             
             
               1 
               Press 
               Menu options will pop up 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               with the mode you are 
               Display Region 48: 
             
             
                 
               button 30. 
               currently in flashing. The 
               Whatever was in 
             
             
                 
                 
               current mode should be 
               display before the 
             
             
                 
                 
               either Length, Area, or 
               MENU/SELECT 
             
             
                 
                 
               Volume. 
               button 30 was pushed. 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               current mode flashing. 
             
             
               2 
               Repeatedly press 
               Menu options will 
               Upper Numeric 
             
             
                 
               SCROLL (L or R) 
               continue to be displayed 
               Display Region 48: 
             
             
                 
               button 26 or 28 until 
               on the screen and each 
               Whatever was in 
             
             
                 
               the Length Icon is 
               time the SCROLL (L or R) 
               display before the 
             
             
                 
               flashing. 
               button 26 or 28 is pushed, 
               MENU/SELECT 
             
             
                 
                 
               the flashing will move to 
               button 30 was pushed. 
             
             
                 
                 
               the next Icon in line. 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               Length mode flashing. 
             
             
               3 
               Press 
               Menu choice of measuring 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               lengths has been selected. 
               Display Region 48: 
             
             
                 
               button 30. 
                 
               A value of zero and the 
             
             
                 
                 
                 
               current units of 
             
             
                 
                 
                 
               measure. 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Nothing 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The L with line Icon 
             
             
                 
                 
                 
               should appear on the 
             
             
                 
                 
                 
               screen and be flashing. 
             
             
               4 
               Press READ button 
               Measurement will be 
               Upper Numeric 
             
             
                 
               24 and obtain first 
               displayed on Upper 
               Display Region 48: 
             
             
                 
               measurement. 
               Numeric Display Region 
               XXXX″, XX′XX″, 
             
             
                 
                 
               48 of display. 
               XX.XX yds, 
             
             
                 
                 
                 
               XXXX cm, or 
             
             
                 
                 
                 
               XX.XX m 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Nothing 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The L with line Icon 
             
             
                 
                 
                 
               should appear on the 
             
             
                 
                 
                 
               screen and be flashing. 
             
             
               5 
               Pressing READ 
               Pressing this button 
               Upper Numeric 
             
             
                 
               button 24. 
               generates a new 
               Display Region 48: 
             
             
                 
                 
               measurement. 
               XXXX″, XX′XX″, 
             
             
                 
                 
                 
               XX.XX yds, 
             
             
                 
                 
                 
               XXXX cm, or 
             
             
                 
                 
                 
               XX.XX m 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Nothing 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The L with line Icon 
             
             
                 
                 
                 
               should appear on the 
             
             
                 
                 
                 
               screen and be flashing. 
             
             
                 
             
           
        
       
     
   
   If length is above 600″, 50′, 16.7 yds, 1524 cm, 15.24 m, “Err” should appear in the display. 
   If length is less than 22″, 1′ 10″, 0.61 yds, 56 cm, 0.56 m, “Err” should appear on the display. 
   Pressing the Clear/Reset button  34  will zero the screen. 
   Table III sets forth logic that may be programmed into the microprocessor  21  and a procedure that may be used to add length measurements using the electronic tape measure  20 . 
   
     
       
             
           
             
             
             
             
           
             
             
             
             
           
         
             
               TABLE III 
             
           
           
             
                 
             
             
               TO ADD LENGTH MEASUREMENTS 
             
           
        
         
             
               Step 
                 
                 
                 
             
             
               Number 
               Button 
               Result 
               Display 
             
             
                 
             
           
        
         
             
               1 
               Press 
               Menu options will pop up 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               with the mode you are 
               Display Region 48: 
             
             
                 
               button 30. 
               currently in flashing. 
               Whatever was in 
             
             
                 
                 
               Should be Length, Area, 
               display before the 
             
             
                 
                 
               or Volume. 
               MENU/SELECT 
             
             
                 
                 
                 
               button was pushed. 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               current mode flashing. 
             
             
               2 
               Repeatedly press 
               Menu options will 
               Upper Numeric 
             
             
                 
               SCROLL (L or R) 
               continue to be displayed 
               Display Region 48: 
             
             
                 
               button 26 or 28 until 
               on the screen and each 
               Whatever was on the 
             
             
                 
               the Length Icon is 
               time the SCROLL (L or R) 
               screen before the 
             
             
                 
               flashing. 
               button 26 or 28 is pushed, 
               MENU/SELECT 
             
             
                 
                 
               the flashing indication will 
               button 30 was pushed. 
             
             
                 
                 
               move to the next Icon in 
               Lower Numeric 
             
             
                 
                 
               line. 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was on the 
             
             
                 
                 
                 
               screen before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve will 
             
             
                 
                 
                 
               be visible with the 
             
             
                 
                 
                 
               Length mode flashing. 
             
             
               3 
               Press 
               Menu choice of measuring 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               lengths has been selected. 
               Display Region 48: 
             
             
                 
               button 30. 
                 
               A value of zero and the 
             
             
                 
                 
                 
               current units of 
             
             
                 
                 
                 
               measure. 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Nothing 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The Length Icon should 
             
             
                 
                 
                 
               appear on the screen 
             
             
                 
                 
                 
               and be flashing. 
             
             
               4 
               Press READ button 
               Measurement will be 
               Upper Numeric 
             
             
                 
               24 and obtain first 
               displayed on Upper 
               Display Region 48: 
             
             
                 
               measurement. If 
               Numeric Display Region 
               XXXX″, XX′XX″, 
             
             
                 
               measurement is not 
               48 of display. 
               XX.XX yds, XXXX cm, 
             
             
                 
               correct user may 
                 
               or XX.XX m, 
             
             
                 
               push 
                 
               Lower Numeric 
             
             
                 
               CLEAR/RESET 
                 
               Display Region 52: 
             
             
                 
               button 34 to clear 
                 
               Nothing 
             
             
                 
               line. 
                 
               Periphery: 
             
             
                 
                 
                 
               The L with line Icon 
             
             
                 
                 
                 
               should appear on the 
             
             
                 
                 
                 
               screen and be flashing. 
             
             
               5 
               Press +/= button 32. 
               Measurement continues to 
               Upper Numeric 
             
             
                 
                 
               show on Upper Numeric 
               Display Region 48: 
             
             
                 
                 
               Display Region 48 of 
               XXXX″, XX′XX″, 
             
             
                 
                 
               display along with a plus 
               XX.XX yds, XX.XX m, 
             
             
                 
                 
               sign (+). Measurement is 
               or XXXX cm 
             
             
                 
                 
               also displayed on Lower 
               Lower Numeric 
             
             
                 
                 
               Numeric Display Region 
               Display Region 52: 
             
             
                 
                 
               52. 
               XXXX″, XX′XX″, 
             
             
                 
                 
                 
               XX.XX yds, 
             
             
                 
                 
                 
               XXXX cm, or 
             
             
                 
                 
                 
               XX.XX m 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The L with line 
             
             
                 
                 
                 
               (Length Icon) should 
             
             
                 
                 
                 
               appear on the screen 
             
             
                 
                 
                 
               and be flashing. 
             
             
                 
                 
                 
               There will be a plus 
             
             
                 
                 
                 
               sign (+). 
             
             
               6 
               Press READ button 
               Second measurement will 
               Upper Numeric 
             
             
                 
               24 and obtain 
               appear on Upper Numeric 
               Display Region 48: 
             
             
                 
               second 
               Display Region 48 of 
               XXXX″, XX′XX″, 
             
             
                 
               measurement. If 
               display along with a plus 
               XX.XX yds, XXXX cm, 
             
             
                 
               measurement is not 
               sign (+) but there will be 
               or XX.XX m 
             
             
                 
               correct the READ 
               no value on the Lower 
               Lower Numeric 
             
             
                 
               button 24 could be 
               Numeric Display Region 
               Display Region 52: 
             
             
                 
               pushed again. 
               52. 
               Nothing 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The L with line Icon 
             
             
                 
                 
                 
               should appear on the 
             
             
                 
                 
                 
               screen and be flashing. 
             
             
                 
                 
                 
               There will be a plus 
             
             
                 
                 
                 
               sign (+). 
             
             
               7 
               Press +/= button 32. 
               Second measured value 
               Upper Numeric 
             
             
                 
                 
               continues to appear on 
               Display Region 48: 
             
             
                 
                 
               Upper Numeric Display 
               XXXX″, XX′XX″, 
             
             
                 
                 
               Region 48. Sum total of 
               XX.XX yds, 
             
             
                 
                 
               first and second 
               XXXX cm, or 
             
             
                 
                 
               measurements will show 
               XX.XX m 
             
             
                 
                 
               up on Lower Numeric 
               Lower Numeric 
             
             
                 
                 
               Display Region 52. 
               Display Region 52: 
             
             
                 
                 
                 
               XXXX″, XX′XX″, 
             
             
                 
                 
                 
               XX.XX yds, 
             
             
                 
                 
                 
               XXXX cm, or 
             
             
                 
                 
                 
               XX.XX m 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The L with line Icon 
             
             
                 
                 
                 
               should appear on the 
             
             
                 
                 
                 
               screen but not be 
             
             
                 
                 
                 
               flashing. 
             
             
               8 
               Press +/= button 32. 
               Pressing the +/= button 32 
               Upper Numeric 
             
             
                 
                 
               again will prepare the unit 
               Display Region 48: 
             
             
                 
                 
               to add another length. The 
               XXXX″, XX′XX″, 
             
             
                 
                 
               Upper Numeric Display 
               XX.XX yds, 
             
             
                 
                 
               Region 48 will display the 
               XXXX cm, or 
             
             
                 
                 
               last measured value, the 
               XX.XX m 
             
             
                 
                 
               Lower Numeric Display 
               Lower Numeric 
             
             
                 
                 
               Region 52 will display the 
               Display Region 52: 
             
             
                 
                 
               last calculated result. 
               XXXX″, XX′XX″, 
             
             
                 
                 
                 
               XX.XX yds, XXXX cm, 
             
             
                 
                 
                 
               or XX.XX m 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The L with line Icon 
             
             
                 
                 
                 
               should appear on the 
             
             
                 
                 
                 
               screen and be flashing. 
             
             
                 
                 
                 
               There will be a plus 
             
             
                 
                 
                 
               sign (+). 
             
             
               9 
               Press READ 24 
               Third measurement will 
               Upper Numeric 
             
             
                 
               button and obtain 
               appear on Upper Numeric 
               Display Region 48: 
             
             
                 
               third measurement. 
               Display Region 48 of 
               XXXX″, XX′XX″, 
             
             
                 
               If measurement is 
               display along with a plus 
               XX.XX yds, XXXX cm, 
             
             
                 
               not correct the 
               sign (+) but there will be 
               or XX.XX m 
             
             
                 
               READ button 24 
               no value on the Lower 
               Lower Numeric 
             
             
                 
               could be pushed 
               Numeric Display Region 
               Display Region 52: 
             
             
                 
               again. 
               52. 
               Nothing 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The L with line Icon 
             
             
                 
                 
                 
               should appear on the 
             
             
                 
                 
                 
               screen and be flashing. 
             
             
                 
                 
                 
               There will be a plus 
             
             
                 
                 
                 
               sign (+). 
             
             
               10 
               Press +/= button 32. 
               Third measured value 
               Upper Numeric 
             
             
                 
                 
               continues to appear on 
               Display Region 48: 
             
             
                 
                 
               Upper Numeric Display 
               XXXX″, XX′XX″, 
             
             
                 
                 
               Region 48. Sum total of 
               XX.XX yds, XXXX cm, 
             
             
                 
                 
               first, second, and third 
               or XX.XX m 
             
             
                 
                 
               measurements will show 
               Lower Numeric 
             
             
                 
                 
               up on Lower Numeric 
               Display Region 52: 
             
             
                 
                 
               Display Region 52. 
               XXXX″, XX′XX″, 
             
             
                 
                 
                 
               XX.XX yds, 
             
             
                 
                 
                 
               XXXX cm, or 
             
             
                 
                 
                 
               XX.XX m 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The L with line Icon 
             
             
                 
                 
                 
               should appear on the 
             
             
                 
                 
                 
               screen but not be 
             
             
                 
                 
                 
               flashing. 
             
             
                 
             
           
        
       
     
   
   To add additional length measurements repeat steps #8, #9, and #10. 
   To clear sum total, press CLEAR/RESET button  34 . 
   Table IV sets forth the programmed logic and a procedure that may be used to determine an area measurement using the electronic tape measure  20 . 
   
     
       
             
           
             
             
             
             
           
             
             
             
             
           
         
             
               TABLE IV 
             
           
           
             
                 
             
             
               TO DETERMINE AREA 
             
           
        
         
             
               Step 
                 
                 
                 
             
             
               Number 
               Button 
               Result 
               Display 
             
             
                 
             
           
        
         
             
               1 
               Press 
               Menu options will pop up 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               with the mode you are 
               Display Region 48: 
             
             
                 
               button 30. 
               currently in flashing. 
               Whatever was in 
             
             
                 
                 
               Should be either Length, 
               display before the 
             
             
                 
                 
               Area, or Volume. 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               current mode flashing. 
             
             
               2 
               Repeatedly press 
               Menu options will 
               Upper Numeric 
             
             
                 
               SCROLL (L or R) 
               continue to be displayed 
               Display Region 48: 
             
             
                 
               button 26 or 28 until 
               on the screen and each 
               Whatever was on the 
             
             
                 
               the Area Icon is 
               time the SCROLL (L or R) 
               screen before the 
             
             
                 
               flashing. 
               button 26 or 28 is pushed, 
               MENU/SELECT 
             
             
                 
                 
               the flashing indication will 
               button 30 was pushed. 
             
             
                 
                 
               move to the next Icon in 
               Lower Numeric 
             
             
                 
                 
               line. 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was on the 
             
             
                 
                 
                 
               screen before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve will 
             
             
                 
                 
                 
               be visible with the area 
             
             
                 
                 
                 
               mode flashing. 
             
             
               3 
               Press 
               Menu choice of measuring 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               areas has been selected. 
               Display Region 48: 
             
             
                 
               button 30. 
                 
               A value of zero and the 
             
             
                 
                 
                 
               current units of 
             
             
                 
                 
                 
               measure 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               ------ and sq 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The LW Icon should 
             
             
                 
                 
                 
               appear on the screen 
             
             
                 
                 
                 
               with the L with line 
             
             
                 
                 
                 
               portion flashing. 
             
             
               4 
               Press READ button 
               Measurement will be 
               Upper Numeric 
             
             
                 
               24 and obtain first 
               displayed on Upper 
               Display Region 48: 
             
             
                 
               measurement. If 
               Numeric Display Region 
               XXXX″, XX′XX″, 
             
             
                 
               measurement is not 
               48 of display. 
               XX.XX yds, 
             
             
                 
               correct press 
                 
               XXXX cm, or 
             
             
                 
               CLEAR/RESET 
                 
               XX.XX m 
             
             
                 
               button 34 to start 
                 
               Lower Numeric 
             
             
                 
               measuring routine 
                 
               Display Region 52: 
             
             
                 
               over again 
                 
               ------ and sq 
             
             
                 
               (beginning of step 
                 
               Periphery: 
             
             
                 
               4). 
                 
               The LW with line Icon 
             
             
                 
                 
                 
               should be on the screen 
             
             
                 
                 
                 
               with the W with line 
             
             
                 
                 
                 
               portion flashing. 
             
             
               5 
               Press READ button 
               Second measurement will 
               Upper Numeric 
             
             
                 
               24 and obtain 
               appear on Upper Numeric 
               Display Region 48: 
             
             
                 
               second 
               Display Region 48 of 
               XXXX″, XX′XX″, 
             
             
                 
               measurement. If 
               display. Area calculation 
               XX.XX yds, 
             
             
                 
               measurement is not 
               will appear on the Lower 
               XXXX cm, or 
             
             
                 
               correct press 
               Numeric Display Region 
               XX.XX m 
             
             
                 
               CLEAR/RESET 
               52. 
               Lower Numeric 
             
             
                 
               button 34 to start 
                 
               Display Region 52: 
             
             
                 
               measuring routine 
                 
               XXXX sq 
             
             
                 
               over again 
                 
               Periphery: 
             
             
                 
               (beginning of step 
                 
               The LW with line Icon 
             
             
                 
               4). 
                 
               should be on the screen 
             
             
                 
                 
                 
               with nothing flashing. 
             
             
               6 
               Press 
               Screen will clear any read 
               Upper Numeric 
             
             
                 
               CLEAR/RESET 
               or calculated values. 
               Display Region 48: 
             
             
                 
               button 34 to start 
                 
               A value of zero and the 
             
             
                 
               measuring routine 
                 
               current units of 
             
             
                 
               over again 
                 
               measure 
             
             
                 
               (beginning of step 
                 
               Lower Numeric 
             
             
                 
               4). 
                 
               Display Region 52: 
             
             
                 
                 
                 
               ------ and sq 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The LW Icon should 
             
             
                 
                 
                 
               appear on the screen 
             
             
                 
                 
                 
               with the L with line 
             
             
                 
                 
                 
               portion flashing. 
             
             
                 
             
           
        
       
     
   
   End users may see what values were measured when determining area by pressing the READ button  24  after an area has been calculated. The LCD screen  42  will show first measurement on the Upper Numeric Display Region  48  with the L with line Icon flashing, by pressing the READ button  24  again the second measurement will be displayed on the Upper Numeric Display Region  48  with the W with line Icon flashing. Pressing the READ button  24  again will get the user back to the first measurement. 
   Table V sets forth programmed logic and a procedure that may be used to add area measurements using the electronic tape measure  20 . 
   
     
       
             
           
             
             
             
             
           
         
             
               TABLE V 
             
           
           
             
                 
             
             
               TO ADD AREA MEASUREMENTS 
             
             
               This function is a continuation of the “TO DETERMINE AREA” function. User 
             
             
               would still be in the Area mode with a calculated area displayed on the Lower 
             
             
               Numeric Display Region 52 of the LCD screen 42. 
             
           
        
         
             
               Step 
                 
                 
                 
             
             
               Number 
               Button 
               Result 
               Display 
             
             
                 
             
             
               1 
               Press the +/= button 
               This button should be 
               Upper Numeric 
             
             
                 
               32 (add another 
               pressed only after a value 
               Display Region 48: 
             
             
                 
               area). 
               for area is registered on 
               Whatever was in 
             
             
                 
                 
               the Lower Numeric 
               display before the 
             
             
                 
                 
               Display Region 52 of the 
               MENU/SELECT 
             
             
                 
                 
               display. This function will 
               button 30 was pushed. 
             
             
                 
                 
               allow the user to calculate 
               Lower Numeric 
             
             
                 
                 
               another area and add it to 
               Display Region 52: 
             
             
                 
                 
               the previous value. Upper 
               Whatever was in 
             
             
                 
                 
               Numeric Display Region 
               display before the 
             
             
                 
                 
               48 will show nothing and 
               MENU/SELECT 
             
             
                 
                 
               Lower Numeric Display 
               button 30 was pushed. 
             
             
                 
                 
               Region 52 will show the 
               Periphery: 
             
             
                 
                 
               current area value. 
               The LW Icon should 
             
             
                 
                 
                 
               appear on the screen 
             
             
                 
                 
                 
               with the L with line 
             
             
                 
                 
                 
               portion flashing. 
             
             
                 
                 
                 
               A plus sign (+) will 
             
             
                 
                 
                 
               appear on the screen 
             
             
               2 
               Press READ button 
               Measurement will be 
               Upper Numeric 
             
             
                 
               24 and obtain first 
               displayed on Upper 
               Display Region 48: 
             
             
                 
               measurement. If 
               Numeric Display Region 
               XXXX″, XX′XX″, 
             
             
                 
               measurement is not 
               48 of display. 
               XX.XX yds, XXXX cm, 
             
             
                 
               correct press 
                 
               or XX.XX m 
             
             
                 
               CLEAR/RESET 
                 
               Lower Numeric 
             
             
                 
               button 34 to start 
                 
               Display Region 52: 
             
             
                 
               measuring routine 
                 
               Nothing 
             
             
                 
               over again (end of 
                 
               Periphery: 
             
             
                 
               step 1). 
                 
               The LW Icon should be 
             
             
                 
                 
                 
               on the screen with the 
             
             
                 
                 
                 
               W with line flashing. 
             
             
                 
                 
                 
               A plus sign (+) will 
             
             
                 
                 
                 
               appear on the screen 
             
             
               3 
               Press READ button 
               Second measurement will 
               Upper Numeric 
             
             
                 
               24 and obtain 
               appear on Upper Numeric 
               Display Region 48: 
             
             
                 
               second 
               Display Region 48 of 
               XXXX″, XX′XX″, 
             
             
                 
               measurement. If 
               display. Area calculation 
               XX.XX yds, XXXX cm, 
             
             
                 
               measurement is not 
               will appear on the Lower 
               or XX.XX m 
             
             
                 
               correct press 
               Numeric Display Region 
               Lower Numeric 
             
             
                 
               CLEAR/RESET 
               52. 
               Display Region 52: 
             
             
                 
               button 34 to start 
                 
               XXXX sq 
             
             
                 
               measuring routine 
                 
               Periphery: 
             
             
                 
               over again (end of 
                 
               The LW Icon should be 
             
             
                 
               step 1). 
                 
               on the screen with 
             
             
                 
                 
                 
               nothing flashing. 
             
             
                 
                 
                 
               A plus sign (+) will 
             
             
                 
                 
                 
               appear on the screen 
             
             
               4 
               Press +/= button 32. 
               Upper Numeric Display 
               Upper Numeric 
             
             
                 
                 
               Region 48 of display will 
               Display Region 48: 
             
             
                 
                 
               show the last measured 
               XXXX″, XX′XX″, 
             
             
                 
                 
               length from step #3 above. 
               XX.XX yds, 
             
             
                 
                 
               Tool will calculate the 
               XXXX cm, or 
             
             
                 
                 
               sum of the area previously 
               XX.XX m 
             
             
                 
                 
               on the Lower Numeric 
               Lower Numeric 
             
             
                 
                 
               Display Region 52 of the 
               Display Region 52: 
             
             
                 
                 
               LCD and the new area just 
               XXXX sq 
             
             
                 
                 
               obtained. This new value 
               Periphery: 
             
             
                 
                 
               will be displayed on the 
               The LW Icon should be 
             
             
                 
                 
               Lower Numeric Display 
               on the screen with 
             
             
                 
                 
               Region 52. 
               nothing flashing. 
             
             
               5 
               Press +/= button 32. 
               Pressing this button will 
               Upper Numeric 
             
             
                 
                 
               let the end user add 
               Display Region 48: 
             
             
                 
                 
               another area. 
               A value of zero and the 
             
             
                 
                 
                 
               current units of 
             
             
                 
                 
                 
               measure 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               XXXX sq 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The LW Icon should 
             
             
                 
                 
                 
               appear on the screen 
             
             
                 
                 
                 
               with the L with line 
             
             
                 
                 
                 
               portion flashing. 
             
             
                 
                 
                 
               A plus sign (+) will 
             
             
                 
                 
                 
               appear on the screen 
             
             
                 
             
           
        
       
     
   
   End users may see what values were measured when determining last area by pressing the READ button  24  after an area has been calculated. Display will show first measurement on the Upper Numeric Display Region  48  with L with line Icon flashing, by pressing the READ button  24  again the second measurement will be displayed on the Upper Numeric Display Region  48  with the W with line flashing. Pressing the READ button  24  again will get the user back to the first measurement. 
   Table VI sets forth the programmed logic and a procedure that may be used to determine volume using the electronic tape measure  20 . 
   
     
       
             
           
             
             
             
             
           
         
             
               TABLE VI 
             
           
           
             
                 
             
             
               TO DETERMINE VOLUME 
             
           
        
         
             
               Step 
                 
                 
                 
             
             
               Number 
               Button 
               Result 
               Display 
             
             
                 
             
             
               1 
               Press 
               Menu options will pop up 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               with the mode you are 
               Display Region 48: 
             
             
                 
               button 30. 
               currently in flashing. 
               Whatever was in 
             
             
                 
                 
               Should be either Length, 
               display before the 
             
             
                 
                 
               Area, or Volume. 
               MENU/SELECT 
             
             
                 
                 
                 
               button was pushed. 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               current mode flashing. 
             
             
               2 
               Repeatedly press 
               Menu options will 
               Upper Numeric 
             
             
                 
               SCROLL (L or R) 
               continue to be displayed 
               Display Region 48: 
             
             
                 
               button 26 or 28 until 
               on the screen and each 
               Whatever was in 
             
             
                 
               the Volume Icon is 
               time the SCROLL (L or R) 
               display before the 
             
             
                 
               flashing. 
               button is pushed, the 
               MENU/SELECT 
             
             
                 
                 
               flashing will move to the 
               button 30 was pushed. 
             
             
                 
                 
               next Icon in line. 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               Area mode flashing. 
             
             
               3 
               Press 
               Menu choice of measuring 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               volumes has been selected. 
               Display Region 48: 
             
             
                 
               button 30. 
                 
               A value of zero and the 
             
             
                 
                 
                 
               current units of 
             
             
                 
                 
                 
               measure 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               ------ and cu 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The LWH Icon should 
             
             
                 
                 
                 
               appear on the screen 
             
             
                 
                 
                 
               with the L with line 
             
             
                 
                 
                 
               portion flashing. 
             
             
               4 
               Press READ button 
               Measurement will be 
               Upper Numeric 
             
             
                 
               24 and obtain first 
               displayed on Upper 
               Display Region 48: 
             
             
                 
               measurement. If 
               Numeric Display Region 
               XXXX″, XX′XX″, 
             
             
                 
               measurement is not 
               48 of display. 
               XX.XX yds, XXXX cm, 
             
             
                 
               correct press 
                 
               or XX.XX m 
             
             
                 
               CLEAR/RESET 
                 
               Lower Numeric 
             
             
                 
               button 34 to start 
                 
               Display Region 52: 
             
             
                 
               volume measuring 
                 
               ------ and cu 
             
             
                 
               routine over again 
                 
               Periphery: 
             
             
                 
               (beginning of step 
                 
               The LWH Icon should 
             
             
                 
               4). 
                 
               be on the screen with 
             
             
                 
                 
                 
               the W with line 
             
             
                 
                 
                 
               flashing. 
             
             
               5 
               Press READ button 
               Second measurement will 
               Upper Numeric 
             
             
                 
               24 and obtain 
               appear on Upper Numeric 
               Display Region 48: 
             
             
                 
               second 
               Display Region 48 of 
               XXXX″, XX′XX″, 
             
             
                 
               measurement. If 
               display. Nothing will 
               XX.XX yds, 
             
             
                 
               measurement is not 
               appear on the Lower 
               XXXX cm, or 
             
             
                 
               correct press 
               Numeric Display Region 
               XX.XX m 
             
             
                 
               CLEAR/RESET 
               52. 
               Lower Numeric 
             
             
                 
               button 34 to start 
                 
               Display Region 52: 
             
             
                 
               volume measuring 
                 
               ------ and cu 
             
             
                 
               routine over again 
                 
               Periphery: 
             
             
                 
               (beginning of step 
                 
               The LWH Icon should 
             
             
                 
               4). 
                 
               be on the screen with 
             
             
                 
                 
                 
               the H with line 
             
             
                 
                 
                 
               flashing. 
             
             
               6 
               Press READ button 
               Third measurement will 
               Upper Numeric 
             
             
                 
               24 and obtain third 
               appear on Upper Numeric 
               Display Region 48: 
             
             
                 
               measurement. If 
               Display Region 48 of 
               XXXX″, XX′XX″, 
             
             
                 
               measurement is not 
               display. Calculated 
               XX.XX yds, XXXX cm, 
             
             
                 
               correct press 
               volume will appear on the 
               or XX.XX m 
             
             
                 
               CLEAR/RESET 
               Lower Numeric Display 
               Lower Numeric 
             
             
                 
               button 34 to start 
               Region 52 of the display. 
               Display Region 52: 
             
             
                 
               volume measuring 
                 
               XXXX cu 
             
             
                 
               routine over again 
                 
               Periphery: 
             
             
                 
               (beginning of step 
                 
               The LWH Icon should 
             
             
                 
               4). 
                 
               be on the screen with 
             
             
                 
                 
                 
               nothing flashing. 
             
             
               7 
               Press 
               Screen will clear any read 
               Upper Numeric 
             
             
                 
               CLEAR/RESET 
               or calculated values. 
               Display Region 48: 
             
             
                 
               button 34 to start 
                 
               A value of zero and the 
             
             
                 
               measuring routine 
                 
               current units of 
             
             
                 
               over again 
                 
               measure 
             
             
                 
               (beginning of step 
                 
               Lower Numeric 
             
             
                 
               4). 
                 
               Display Region 52: 
             
             
                 
                 
                 
               ------ and cu 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The LWH Icon should 
             
             
                 
                 
                 
               appear on the screen 
             
             
                 
                 
                 
               with the L with line 
             
             
                 
                 
                 
               portion flashing. 
             
             
                 
             
           
        
       
     
   
   End users may see what values were measured when determining volume by pressing the READ button  24  after the volume has been calculated. Display will show first measurement on the Upper Numeric Display Region  48  with L with line Icon flashing, by pressing the READ button  24  again the second measurement will be displayed on the Upper Numeric Display Region  48  with the W with line flashing, by pressing the READ button  24  again the third measurement will be displayed on the Upper Numeric Display Region  48  with the H with line flashing. Pressing the READ button  24  again will get the user back to the first measurement with the L with line Icon flashing. 
   Table VII sets forth the programmed logic and a procedure that may be used to add volume measurement using the electronic tape measure  20 . 
   
     
       
             
           
             
             
             
             
           
         
             
               TABLE VII 
             
           
           
             
                 
             
             
               TO ADD VOLUME MEASUREMENTS 
             
             
               This function is a continuation of the “TO DETERMINE VOLUME” calculation 
             
             
               function. User would still be in the Volume mode with a calculated volume displayed 
             
             
               on the Lower Numeric Display Region 52 of the LCD screen 42. 
             
           
        
         
             
               Step 
                 
                 
                 
             
             
               Number 
               Button 
               Result 
               Display 
             
             
                 
             
             
               1 
               Press the +/= button 
               This button should be 
               Upper Numeric 
             
             
                 
               32 (add another 
               pressed only after a value 
               Display Region 48: 
             
             
                 
               volume). 
               for volume is registered on 
               The last measurement 
             
             
                 
                 
               the Lower Numeric 
               shown on the screen 
             
             
                 
                 
               Display Region 52 of the 
               will remain. 
             
             
                 
                 
               display. This function will 
               Lower Numeric 
             
             
                 
                 
               allow the user to calculate 
               Display Region 52: 
             
             
                 
                 
               another volume and add it 
               XXXX cu 
             
             
                 
                 
               to the previous value. 
               Periphery: 
             
             
                 
                 
               Lower Numeric Display 
               The LWH Icon should 
             
             
                 
                 
               Region 52 will show the 
               appear on the screen 
             
             
                 
                 
               current volume value. 
               with the L with line 
             
             
                 
                 
                 
               portion flashing. 
             
             
                 
                 
                 
               A plus sign (+) will 
             
             
                 
                 
                 
               appear on the screen. 
             
             
               2 
               Press READ button 
               Measurement will be 
               Upper Numeric 
             
             
                 
               24 and obtain first 
               displayed on Upper 
               Display Region 48: 
             
             
                 
               measurement. If 
               Numeric Display Region 
               XXXX″, XX′XX″, 
             
             
                 
               measurement is not 
               48 of display. This will be 
               XX.XX yds, 
             
             
                 
               correct press 
               the length value just 
               XXXX cm, or 
             
             
                 
               CLEAR/RESET 
               measured. 
               XX.XX m 
             
             
                 
               button 34 to start 
                 
               Lower Numeric 
             
             
                 
               measuring routine 
                 
               Display Region 52: 
             
             
                 
               over again (end of 
                 
               ------ and cu 
             
             
                 
               step 1). 
                 
               Periphery: 
             
             
                 
                 
                 
               The LWH Icon should 
             
             
                 
                 
                 
               be on the screen with 
             
             
                 
                 
                 
               the W with line 
             
             
                 
                 
                 
               flashing. 
             
             
                 
                 
                 
               The plus sign (+) will 
             
             
                 
                 
                 
               stay lighted on the 
             
             
                 
                 
                 
               screen. 
             
             
               3 
               Press READ button 
               Second measurement will 
               Upper Numeric 
             
             
                 
               24 and obtain 
               appear on Upper Numeric 
               Display Region 48: 
             
             
                 
               second 
               Display Region 48 of 
               XXXX″, XX′XX″, 
             
             
                 
               measurement. If 
               display. This will be the 
               XX.XX yds, 
             
             
                 
               measurement is not 
               width value just measured. 
               XXXX cm, or 
             
             
                 
               correct press 
                 
               XX.XX m 
             
             
                 
               CLEAR/RESET 
                 
               Lower Numeric 
             
             
                 
               button 34 to start 
                 
               Display Region 52: 
             
             
                 
               measuring routine 
                 
               ------ and cu 
             
             
                 
               over again (end of 
                 
               Periphery: 
             
             
                 
               step 1). 
                 
               The LWH Icon should 
             
             
                 
                 
                 
               be on the screen with 
             
             
                 
                 
                 
               the H with line 
             
             
                 
                 
                 
               flashing. 
             
             
                 
                 
                 
               The plus sign (+) will 
             
             
                 
                 
                 
               stay lighted on the 
             
             
                 
                 
                 
               screen. 
             
             
               4 
               Press READ button 
               Third measurement will 
               Upper Numeric 
             
             
                 
               24 and obtain third 
               appear on Upper Numeric 
               Display Region 48: 
             
             
                 
               measurement. If 
               Display Region 48 of 
               XXXX″, XX′XX″, 
             
             
                 
               measurement is not 
               display. Volume 
               XX.XX yds, 
             
             
                 
               correct press 
               calculation will appear on 
               XXXX cm, or 
             
             
                 
               CLEAR/RESET 
               the Lower Numeric 
               XX.XX m 
             
             
                 
               button 34 to start 
               Display Region 52. 
               Lower Numeric 
             
             
                 
               measuring routine 
                 
               Display Region 52: 
             
             
                 
               over again (end of 
                 
               XXXX cu 
             
             
                 
               step 1). 
                 
               Periphery: 
             
             
                 
                 
                 
               The LWH Icon should 
             
             
                 
                 
                 
               be on the screen with 
             
             
                 
                 
                 
               nothing flashing. 
             
             
                 
                 
                 
               The plus sign (+) will 
             
             
                 
                 
                 
               stay lighted on the 
             
             
                 
                 
                 
               screen. 
             
             
               5 
               Press +/= button 32. 
               Upper Numeric Display 
               Upper Numeric 
             
             
                 
                 
               Region 48 of display will 
               Display Region 48: 
             
             
                 
                 
               show the last measured 
               XXXX″, XX′XX″, 
             
             
                 
                 
               length from step #4 above. 
               XX.XX yds, 
             
             
                 
                 
               Tool will calculate the 
               XXXX cm, or 
             
             
                 
                 
               sum of the volume 
               XX.XX m 
             
             
                 
                 
               previously on the Lower 
               Lower Numeric 
             
             
                 
                 
               Numeric Display Region 
               Display Region 52: 
             
             
                 
                 
               52 of the LCD and the 
               XXXX cu 
             
             
                 
                 
               new volume just obtained. 
               Periphery: 
             
             
                 
                 
               This new value will be 
               The LWH Icon should 
             
             
                 
                 
               displayed on the Lower 
               be on the screen with 
             
             
                 
                 
               Numeric Display Region 
               nothing flashing. 
             
             
                 
                 
               52. 
               The plus sign (+) will 
             
             
                 
                 
                 
               go off. 
             
             
               6 
               Press +/= button 32. 
               Pressing this button will 
               See line 1 above 
             
             
                 
                 
               let the end user add 
             
             
                 
                 
               another volume. 
             
             
                 
             
           
        
       
     
   
   End users may see what values were measured when determining a volume by pressing the READ button  24  after the volume has been calculated. Display will show first measurement on the Upper Numeric Display Region  48  with L with line Icon flashing, by pressing the READ button  24  again the second measurement will be displayed on the Upper Numeric Display Region  48  with the W with line flashing, by pressing the READ button  24  again the third measurement will be displayed on the Upper Numeric Display Region  48  with the H with line flashing. Pressing the READ button  24  again will get the user back to the first measurement with the L with line Icon flashing. 
   Table VIII sets forth the programmed logic and a procedure that may be used to change units of measure when using the electronic tape measure  20 . 
   
     
       
             
           
             
             
             
             
           
         
             
               TABLE VIII 
             
           
           
             
                 
             
             
               TO CHANGE UNITS OF MEASURE 
             
           
        
         
             
               Step 
                 
                 
                 
             
             
               Number 
               Button 
               Result 
               Display 
             
             
                 
             
             
               1 
               Press 
               Menu options will pop up 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               with the mode you are 
               Display Region 48: 
             
             
                 
               button 30. 
               currently in flashing. 
               Whatever was in 
             
             
                 
                 
               Should be either Length, 
               display before the 
             
             
                 
                 
               Area, or Volume 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               current mode flashing. 
             
             
               2 
               Repeatedly press 
               Menu options will 
               Upper Numeric 
             
             
                 
               SCROLL (L or R) 
               continue to be displayed 
               Display Region 48: 
             
             
                 
               button 26 or 28 until 
               on the screen and each 
               Whatever was in 
             
             
                 
               the Units Icon is 
               time the SCROLL (L or R) 
               display before the 
             
             
                 
               flashing. 
               button 26 or 28 is pushed, 
               MENU/SELECT 
             
             
                 
                 
               the highlighting will move 
               button 30 was pushed. 
             
             
                 
                 
               to the next Icon in line. 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               Units mode flashing. 
             
             
               3 
               Press 
               Menu choice of changing 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               units has been selected. 
               Display Region 48: 
             
             
                 
               button 30. 
                 
               Should show the same 
             
             
                 
                 
                 
               value that was on the 
             
             
                 
                 
                 
               screen before getting 
             
             
                 
                 
                 
               into this menu driven 
             
             
                 
                 
                 
               mode to change units. 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Should show the same 
             
             
                 
                 
                 
               value that was on the 
             
             
                 
                 
                 
               screen before getting 
             
             
                 
                 
                 
               into this menu driven 
             
             
                 
                 
                 
               mode to change units. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The Units Icon will be 
             
             
                 
                 
                 
               flashing; all other Icons 
             
             
                 
                 
                 
               will be off. The units of 
             
             
                 
                 
                 
               measure will show up 
             
             
                 
                 
                 
               on the screen (in, ft, 
             
             
                 
                 
                 
               yds, cm, m) with the 
             
             
                 
                 
                 
               current units of 
             
             
                 
                 
                 
               measure flashing. 
             
             
               4 
               Press SCROLL (L 
               The units of measure will 
               Upper Numeric 
             
             
                 
               or R) button 26 or 
               change to the next type in 
               Display Region 48: 
             
             
                 
               28 until the units 
               line. Sequence will be in, 
               Value and units from 
             
             
                 
               desired show up on 
               ft, yds, cm and m. User 
               previous step will 
             
             
                 
               the screen. 
               may keep pressing 
               change to converted 
             
             
                 
                 
               SCROLL (L or R) button 
               value and units of 
             
             
                 
                 
               26 or 28 until the desired 
               measure. 
             
             
                 
                 
               Units of measure are 
               Lower Numeric 
             
             
                 
                 
               displayed. 
               Display Region 52: 
             
             
                 
                 
                 
               If there was a value on 
             
             
                 
                 
                 
               this line, value and 
             
             
                 
                 
                 
               units from previous 
             
             
                 
                 
                 
               step will change to 
             
             
                 
                 
                 
               converted value and 
             
             
                 
                 
                 
               units of measure. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The Units Icon will be 
             
             
                 
                 
                 
               flashing; all other Icons 
             
             
                 
                 
                 
               will be off. The units of 
             
             
                 
                 
                 
               measure will be 
             
             
                 
                 
                 
               illuminated (in, ft, yds, 
             
             
                 
                 
                 
               cm, m) with the desired 
             
             
                 
                 
                 
               unit of measure 
             
             
                 
                 
                 
               flashing. 
             
             
               5 
               Press 
               Tool will now display all 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               measurements based upon 
               Display Region 48: 
             
             
                 
               button 30. 
               the Unit type selected. 
               Same as previous step 
             
             
                 
                 
               Unit will kick out of menu 
               Lower Numeric 
             
             
                 
                 
               mode and back to Length, 
               Display Region 52: 
             
             
                 
                 
               Area or Volume mode. 
               Same as Previous step. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Unit Icon will turn off. 
             
             
                 
             
           
        
       
     
   
   If an end user comes into menu mode from measuring lengths, the Upper Numeric Display Region  48  and possibly Lower Numeric Display Region  52  may continue to show the measurements once the MENU/SELECT button  30  is pressed. If the menu option is then changed to Area, Volume, or Memory Retrieve, nothing may be displayed on the UPPER NUMERIC DISPLAY REGION  48  or Lower Numeric Display Region  52 . The UPPER NUMERIC DISPLAY REGION  48  and possibly LOWER NUMERIC DISPLAY REGION  52  values may be displayed in the Length, Units, and Memory Store modes. 
   If an end user comes into menu mode from measuring areas, the Upper Numeric Display Region  48  and possibly Lower Numeric Display Region  52  may continue to show the measurements once the MENU/SELECT button  30  is pressed. If the menu option is then changed to Length, Volume, or Memory Retrieve, nothing may be displayed on the UPPER NUMERIC DISPLAY REGION  48  or Lower Numeric Display Region  52 . The UPPER NUMERIC DISPLAY REGION  48  and possibly LOWER NUMERIC DISPLAY REGION  52  values may be displayed in the Area, Units, and Memory Store modes. 
   If an end user comes into menu mode from measuring Volumes, the Upper Numeric Display Region  48  and possibly Lower Numeric Display Region  52  may continue to show the measurements once the MENU/SELECT button  30  is pressed. If the menu option is then changed to Length, Area, or Memory Retrieve, nothing may be displayed on the UPPER NUMERIC DISPLAY REGION  48  or Lower Numeric Display Region  52 . The UPPER NUMERIC DISPLAY REGION  48  and possibly LOWER NUMERIC DISPLAY REGION  52  values may be displayed in the Volume, Units, and Memory Store modes. 
   Table IX sets forth the programmed logic and a procedure that may be used to save a value in memory on the electronic tape measure  20 . 
   
     
       
             
           
             
             
             
             
           
         
             
               TABLE IX 
             
           
           
             
                 
             
             
               TO SAVE VALUE IN MEMORY 
             
           
        
         
             
               Step 
                 
                 
                 
             
             
               Number 
               Button 
               Result 
               Display 
             
             
                 
             
             
               1 
               Press 
               Menu options will pop up 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               with the mode you are 
               Display Region 48: 
             
             
                 
               button 30. 
               currently in flashing. 
               Whatever was in 
             
             
                 
                 
               Should be either Length, 
               display before the 
             
             
                 
                 
               Area, or Volume. 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               current mode flashing. 
             
             
               2 
               Repeatedly press 
               Menu options will 
               Upper Numeric 
             
             
                 
               SCROLL (L or R) 
               continue to be displayed 
               Display Region 48: 
             
             
                 
               button 26 or 28 until 
               on the screen and each 
               Whatever was in 
             
             
                 
               the Memory Store 
               time the SCROLL (L or R) 
               display before the 
             
             
                 
               Icon is flashing. 
               button 26 or 28 is pushed, 
               MENU/SELECT 
             
             
                 
                 
               the highlighting will move 
               button 30 was pushed. 
             
             
                 
                 
               to the next Icon in line. 
               Lower Numeric 
             
             
                 
                 
               User may continue to 
               Display Region 52: 
             
             
                 
                 
               toggle through the choices 
               Whatever was in 
             
             
                 
                 
               until reaching the Memory 
               display before the 
             
             
                 
                 
               Store Icon. 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve will 
             
             
                 
                 
                 
               be visible with the 
             
             
                 
                 
                 
               Memory Store mode 
             
             
                 
                 
                 
               flashing. 
             
             
               3 
               Press 
               Menu choice of Memory 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               Storage has been selected. 
               Display Region 48: 
             
             
                 
               button 30. 
               Once the user has selected 
               Nothing 
             
             
                 
                 
               that they want to go to 
               Lower Numeric 
             
             
                 
                 
               Memory Storage, they 
               Display Region 52: 
             
             
                 
                 
               need to determine what 
               The value that is to be 
             
             
                 
                 
               memory location they 
               stored. 
             
             
                 
                 
               want to save their value in. 
               Periphery: 
             
             
                 
                 
               There are five locations 
               Icon for Memory Store 
             
             
                 
                 
               (1-5). The tool will default 
               and 1, 2, 3, 4, 5 will be 
             
             
                 
                 
               to the first memory 
               highlighted. The 1 will 
             
             
                 
                 
               location by flashing the 1. 
               be flashing. 
             
             
                 
                 
               The user may then accept 
             
             
                 
                 
               this location by pressing 
             
             
                 
                 
               the MENU/SELECT 
             
             
                 
                 
               button 30 or scroll to 
             
             
                 
                 
               another of the memory 
             
             
                 
                 
               locations by pushing the 
             
             
                 
                 
               SCROLL (L or R) button 
             
             
                 
                 
               26 or 28. 
             
             
               4 
               Press the SCROLL 
               This will allow the user to 
               Upper Numeric 
             
             
                 
               (L or R) button 26 
               choose a different memory 
               Display Region 48: 
             
             
                 
               or 28. 
               location. By continuing to 
               Nothing 
             
             
                 
                 
               push the SCROLL (L or 
               Lower Numeric 
             
             
                 
                 
               R) button 26 or 28, the 
               Display Region 52: 
             
             
                 
                 
               unit will scroll through the 
               The value that is to be 
             
             
                 
                 
               five different memory 
               stored. 
             
             
                 
                 
               locations. 
               Periphery: 
             
             
                 
                 
                 
               Icon for Memory Store 
             
             
                 
                 
                 
               and 1, 2, 3, 4, 5 will be 
             
             
                 
                 
                 
               highlighted. The 
             
             
                 
                 
                 
               current memory 
             
             
                 
                 
                 
               location will be 
             
             
                 
                 
                 
               flashing. 
             
             
               5 
               Press the 
               This will store the value in 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               the memory location. 
               Display Region 48: 
             
             
                 
               button 30. 
               Pressing this key will also 
               The display will look 
             
             
                 
                 
               put the user back in the 
               like it did before the 
             
             
                 
                 
               Length, Area or Volume 
               MENU/SELECT 
             
             
                 
                 
               mode, whatever the mode 
               button 30 was pushed. 
             
             
                 
                 
               was before the Memory 
               Lower Numeric 
             
             
                 
                 
               Storage routine was 
               Display Region 52: 
             
             
                 
                 
               started. 
               The display will look 
             
             
                 
                 
                 
               like it did before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               The display will look 
             
             
                 
                 
                 
               like it did before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
             
           
        
       
     
   
   Table X sets forth programmed logic and a procedure that may be used to retrieve a value in memory on the electronic tape measure  20 . 
   
     
       
             
           
             
             
             
             
           
         
             
               TABLE X 
             
           
           
             
                 
             
             
               TO VIEW VALUE IN MEMORY 
             
             
               (MEMORY RECALL MODE) 
             
             
               Memory locations may be cleared only when in Memory Recall mode. Once in 
             
             
               Memory Recall mode, the user may hold the CLEAR/RESET button 34 in for 2 
             
             
               seconds and all the values in memory will be cleared. 
             
           
        
         
             
               Step 
                 
                 
                 
             
             
               Number 
               Button 
               Result 
               Display 
             
             
                 
             
             
               1 
               Press 
               Menu options will pop up 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               with the mode you are 
               Display Region 48: 
             
             
                 
               button 30. 
               currently in flashing. At 
               Whatever was in 
             
             
                 
                 
               this point the current mode 
               display before the 
             
             
                 
                 
               should be either Length, 
               MENU/SELECT 
             
             
                 
                 
               Area, or Volume 
               button 30 was pushed. 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               current mode flashing. 
             
             
               2 
               Repeatedly press 
               Menu options will 
               Upper Numeric 
             
             
                 
               SCROLL (L or R) 
               continue to be displayed 
               Display Region 48: 
             
             
                 
               button 26 or 28 until 
               on the screen and each 
               Whatever was in 
             
             
                 
               the Memory 
               time the SCROLL (L or R) 
               display before the 
             
             
                 
               Retrieve Icon is 
               button 26 or 28 is pushed, 
               MENU/SELECT 
             
             
                 
               flashing. 
               the highlighting will move 
               button 30 was pushed. 
             
             
                 
                 
               to the next Icon in line. 
               Lower Numeric 
             
             
                 
                 
               User may continue to 
               Display Region 52: 
             
             
                 
                 
               toggle through the choices 
               Whatever was in 
             
             
                 
                 
               until reaching the Memory 
               display before the 
             
             
                 
                 
               Retrieve Icon. 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               Memory Retrieve Icon 
             
             
                 
                 
                 
               flashing. 
             
             
               3 
               Press 
               Menu choice of Memory 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               Retrieve has been selected. 
               Display Region 48: 
             
             
                 
               button 30. 
               Once the user has selected 
               Nothing 
             
             
                 
                 
               that they want to go to 
               Lower Numeric 
             
             
                 
                 
               memory retrieve, they 
               Display Region 52: 
             
             
                 
                 
               need to determine what 
               The display shows the 
             
             
                 
                 
               memory location they 
               value stored in the 
             
             
                 
                 
               want to retrieve their value 
               memory location that is 
             
             
                 
                 
               from. There are five 
               flashing. 
             
             
                 
                 
               locations (1-5). The tool 
               Periphery: 
             
             
                 
                 
               will default to the first 
               Icon for Memory 
             
             
                 
                 
               occupied memory location 
               Retrieve and any 
             
             
                 
                 
               by flashing the memory 
               memory locations (1, 2, 
             
             
                 
                 
               location number and the 
               3, 4, 5) that have a 
             
             
                 
                 
               corresponding value 
               value will be 
             
             
                 
                 
               displayed on the Lower 
               highlighted. The lowest 
             
             
                 
                 
               Numeric Display Region 
               numbered memory 
             
             
                 
                 
               52. 
               location will be 
             
             
                 
                 
                 
               flashing when the user 
             
             
                 
                 
                 
               first enters this mode. 
             
             
               4 
               Press the 
               This will take the end user 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               back to the mode he/she 
               Display Region 48: 
             
             
                 
               button 30. 
               was in before they got into 
               Whatever was in 
             
             
                 
                 
               the Memory Recall mode. 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
             
           
        
       
     
   
   Table XI sets forth the programmed logic and a procedure that may be used to add a memory value to a length, area, or volume measurement using the electronic tape measure  20 . 
   
     
       
             
           
             
             
             
             
           
         
             
               TABLE XI 
             
           
           
             
                 
             
             
               TO ADD A MEMORY VALUE TO A LENGTH, AREA, OR VOLUME 
             
             
               Obviously, one cannot add a length to an area or volume, 
             
             
               nor can one add an area to a volume. 
             
             
               As noted above, memory locations may be cleared only when 
             
             
               in Memory Recall mode. Once in Memory Recall 
             
             
               mode, the user may hold the CLEAR/RESET button 34 in for 2 
             
             
               seconds and all the values in memory will be cleared. 
             
           
        
         
             
               Step Number 
               Button 
               Result 
               Display 
             
             
                 
             
             
               1 
               Press the +/= button 
               This button may be pushed 
               Upper Numeric 
             
             
                 
               32. 
               once there is a value in the 
               Display Region 48: 
             
             
                 
                 
               tool for length, area or 
               XXXX″, XX′XX″, 
             
             
                 
                 
               volume. Measurement 
               XX.XX yds, XXXX cm, 
             
             
                 
                 
               continues to show on 
               or XX.XX m 
             
             
                 
                 
               Upper Numeric Display 
               Lower Numeric 
             
             
                 
                 
               Region 48 of display along 
               Display Region 52: 
             
             
                 
                 
               with a plus sign (+). 
               XXXX″, XX′XX″, 
             
             
                 
                 
               Measurement is also 
               XX.XX yds, 
             
             
                 
                 
               displayed on Lower 
               XX.XX cm, or 
             
             
                 
                 
               Numeric Display Region 
               XX.XX m 
             
             
                 
                 
               52. 
               Periphery: 
             
             
                 
                 
                 
               Some form of the LWH 
             
             
                 
                 
                 
               icon should be on the 
             
             
                 
                 
                 
               screen. There will be a 
             
             
                 
                 
                 
               plus sign (+). 
             
             
               2 
               Press 
               Menu options will pop up 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               with the mode you are 
               Display Region 48: 
             
             
                 
               button 30. 
               currently in flashing. At 
               Whatever was in 
             
             
                 
                 
               this point the current mode 
               display before the 
             
             
                 
                 
               should be either Length, 
               MENU/SELECT 
             
             
                 
                 
               Area, or Volume. 
               button 30 was pushed. 
             
             
                 
                 
                 
               Lower Numeric 
             
             
                 
                 
                 
               Display Region 52: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before the 
             
             
                 
                 
                 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               current mode flashing. 
             
             
               3 
               Repeatedly press 
               Menu options will 
               Upper Numeric 
             
             
                 
               SCROLL (L or R) 
               continue to be displayed 
               Display Region 48: 
             
             
                 
               button 26 or 28 until 
               on the screen and each 
               Whatever was in 
             
             
                 
               the Memory 
               time the SCROLL (L or R) 
               display before the 
             
             
                 
               Retrieve Icon is 
               button 26 or 28 is pushed, 
               MENU/SELECT 
             
             
                 
               flashing. 
               the highlighting will move 
               button 30 was pushed. 
             
             
                 
                 
               to the next Icon in line. 
               Lower Numeric 
             
             
                 
                 
               User may continue to 
               Display Region 52: 
             
             
                 
                 
               toggle through the choices 
               Whatever was in 
             
             
                 
                 
               until reaching the Memory 
               display before the 
             
             
                 
                 
               Retrieve Icon. 
               MENU/SELECT 
             
             
                 
                 
                 
               button 30 was pushed. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Icon for Length, Area, 
             
             
                 
                 
                 
               Volume, Units, 
             
             
                 
                 
                 
               Memory Store, and 
             
             
                 
                 
                 
               Memory Retrieve 
             
             
                 
                 
                 
               will be visible with the 
             
             
                 
                 
                 
               Memory Retrieve Icon 
             
             
                 
                 
                 
               flashing. 
             
             
               4 
               Press 
               Menu choice of Memory 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               Retrieve has been selected. 
               Display Region 48: 
             
             
                 
               button 30. 
               Once the user has selected 
               Nothing 
             
             
                 
                 
               that they want to go to 
               Lower Numeric 
             
             
                 
                 
               memory retrieve, they 
               Display Region 52: 
             
             
                 
                 
               need to determine what 
               The display shows the 
             
             
                 
                 
               memory location they 
               value stored in the 
             
             
                 
                 
               want to retrieve their value 
               memory location that is 
             
             
                 
                 
               from. There are five 
               flashing. 
             
             
                 
                 
               locations (1-5). The tool 
               Periphery: 
             
             
                 
                 
               will default to the first 
               Icon for Memory 
             
             
                 
                 
               occupied memory location 
               Retrieve and any 
             
             
                 
                 
               by flashing the memory 
               memory locations (1, 2, 
             
             
                 
                 
               location number and the 
               3, 4, 5) that have a 
             
             
                 
                 
               corresponding value 
               value will be 
             
             
                 
                 
               displayed on the Lower 
               highlighted. The lowest 
             
             
                 
                 
               Numeric Display Region 
               numbered memory 
             
             
                 
                 
               52. The user may then 
               location will be 
             
             
                 
                 
               accept this location by 
               flashing when the user 
             
             
                 
                 
               pushing the 
               first enters this mode. 
             
             
                 
                 
               MENU/SELECT button 
             
             
                 
                 
               30 or scroll to another of 
             
             
                 
                 
               the memory locations by 
             
             
                 
                 
               pushing the SCROLL (L 
             
             
                 
                 
               or R) button 26 or 28. 
             
             
               5 
               Press the 
               This will take the end user 
               Upper Numeric 
             
             
                 
               MENU/SELECT 
               back to the mode he/she 
               Display Region 48: 
             
             
                 
               button 30. 
               was in before they got into 
               Whatever was in 
             
             
                 
                 
               the Memory Recall mode. 
               display before the 
             
             
                 
                 
               The Lower Numeric 
               MENU/SELECT 
             
             
                 
                 
               Display Region 52 will 
               button 30 was pushed. 
             
             
                 
                 
               show the addition of the 
               Lower Numeric 
             
             
                 
                 
               previous value and what 
               Display Region 52: 
             
             
                 
                 
               was in memory. 
               Sum of the previous 
             
             
                 
                 
                 
               value and what was in 
             
             
                 
                 
                 
               memory. 
             
             
                 
                 
                 
               Periphery: 
             
             
                 
                 
                 
               Whatever was in 
             
             
                 
                 
                 
               display before going 
             
             
                 
                 
                 
               into the memory recall 
             
             
                 
                 
                 
               mode. 
             
             
                 
             
           
        
       
     
   
   Unit may be programmed to automatically shutdown 30 seconds after last input (button actuation). 
   None of the functions listed can be performed until unit is powered on. 
   When getting into Menu/Select Mode to select Length, Area, Volume, Units, Memory Storage, and Memory Retrieve, the Memory Retrieve Icon may be programmed not to light up unless there are stored values in memory. 
   Due to the simplicity of the logic programmed into the processor  21  and the minimal number of buttons that are used in the electronic tape measure  20 , multiple functions may be performed using the electronic tape measure, without the need for cumbersome numerous small buttons on the device. In addition, due to the retractable nature of the belt clip  36 , and the small number of buttons, a belt clip may be provided on the front of the device without interfering with operation of the buttons  24 - 34 . 
   Since the belt clip member  36  is retractable, it may be located on the front of the device  20  without interference with operation of the device  20 . 
   The foregoing detailed description has been given for clearness of understanding only and no unnecessary limitations should be understood therefrom, as modifications will be obvious to those skilled in the art. For example, the teachings of this disclosure are applicable to many types of handheld devices in addition to length measuring devices, such as, for example, laser levels, and stud sensors.