Patent Publication Number: US-7593857-B2

Title: Selectively expanding and printing indicia information

Description:
This application claims the benefit of U.S. Provisional Application No. 60/591,491 filed Jul. 27, 2004 which is incorporated by reference herein in its entirety. 
    
    
     BACKGROUND 
     The disclosed embodiments relate to selectively expanding and printing barcoded information. 
     BRIEF DESCRIPTION OF RELATED DEVELOPMENTS 
     Mailing machines or postage meters enable users to frank one or more mail items by printing a stamp representing the amount paid by the sender. For example, U.S. Pat. Nos. 5,243,908; 5,683,190; 5,526,271; 6,607,095; 6,050,054; 5,293,465; 5,688,729; all of which are incorporated herein by reference in their entirety; disclose franking machines which may comprise franking heads, feeders, folders and user interfaces as examples. 
     A high volume postal customer may use a postage meter which incorporates a Postal Security Device (PSD) to secure the proof of payment of postal indicia. In an exemplary application, indicia may be applied to mailing items that identifies the value of the postage applied and other information. A customer may purchase postage and the purchased value may be stored in the PSD. As the postage indicia is applied to items, the value applied may be deducted from the stored value. Once postage indicia is applied, the item may then be dropped into the collection stream of the particular postal system and subsequently processed for delivery. 
     Barcoded indicia generally occupies about 1 square inch, may require 2 pens and 1 printhead to print, and may require a resolution of approximately 300 DPI. Alignment among multiple devices such as pens and printheads can be difficult to achieve and maintain. 
     Furthermore, the printing devices themselves print at a rate much slower than typical media transport speeds. For example, a typical printhead may be capable of printing 300 DPI on media travelling at a maximum of 55 inches/second. Using envelopes as an example, this translates to approximately 15 thousand envelopes/hour. 
     Typical media transport devices are capable of moving media at much faster speeds. A method of constructing indicia that allows for faster printing and that uses less ink would be advantageous. 
     SUMMARY OF THE DISCLOSED EMBODIMENTS 
     In accordance with one exemplary embodiment, a method of producing a barcode includes collecting a set of information for producing the bar code, using an indicator to designate the set of information, encoding the indicator in the barcode, expanding the barcode to a particular size, and printing the bar code. 
     In accordance with another exemplary embodiment, a method of producing a postal indicia barcode includes collecting a set of information for producing the postal indicia barcode, using a serial number to indicate the set of information, encoding the serial number into the postal indicia a barcode, expanding the barcode to a particular size, and applying the postal indicia bar code to a mail piece. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The foregoing aspects and other features of the disclosed embodiments are explained in the following description, taken in connection with the accompanying drawings, wherein: 
         FIG. 1  shows a block diagram of a system suitable for practicing the disclosed embodiments; 
         FIG. 2  shows a block diagram of meter according to the disclosed embodiments; 
         FIG. 3  shows a diagram of a postage infrastructure data center. 
         FIG. 4  shows a prior art bar code; 
         FIG. 5  shows a reduced bar code according to the disclosed embodiments; and 
         FIG. 6  shows an expanded bar code according to the disclosed embodiments. 
     
    
    
     DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS 
       FIG. 1  shows a block diagram of a system  100  suitable for practicing the disclosed embodiments disclosed herein. Although the disclosed embodiments will be described with reference to the embodiment shown in the drawings, it should be understood that the disclosed embodiments can be embodied in many alternate forms of embodiments. In addition, any suitable size, shape or type of elements or materials could be used. 
     It is a feature of the disclosed embodiments to produce a barcode with a reduced set of unique information. It is another feature of the disclosed embodiments to expand the reduced barcode to a particular size such that the bar code may be printed at a lower resolution or with less ink or both. 
     System  100  includes one or more funding devices, shown in  FIG. 1  as meters  115   1  . . .  115   n  and a postal infrastructure data center  130  connected to the meters  115   1  . . .  115   n  through one or more networks  125   1  . . .  125   n . 
       FIG. 2  shows a general block diagram of meter  115 . Meter  115  may include a communications port  117  and a microprocessor  118  for performing electronic accounting functions, control functions, and franking functions according to programs stored in a storage device  119 . Some of these functions or subsets of these functions may be grouped within a secure perimeter as what is commonly referred to as a Postal Security Device (PSD). 
     Storage device  119  generally stores machine readable program code which is adapted to cause microprocessor  118  to perform the functions of the disclosed embodiments including producing bar coded indicia, a reduced bar code, and an expanded bar code as described below. Storage device  119  may utilize optical, magnetic, semiconductor, electronic, or other types of suitable devices to store the program code. 
     Microprocessor  118  typically performs the electronic accounting functions in relation to franking items. Data associated with the accounting functions may include an accumulated total value of credit entered into the PSD, an accumulated total value of charges dispensed by the PSD by franking items, a count of the number of items franked, and a count of the number of items franked with a charge in excess of a predetermined value. The accumulated total value of credit may be stored in an ascending credit register  160 , the accumulated total value of postage charges dispensed may be stored in a descending register  165 , and the count of items may be stored in an items count register  170 . The various registers may be located in storage device  119 . 
     The franking functions performed by microprocessor  118  typically include collecting and processing information to produce indicia, for example, an electronic signature, information regarding the mail piece, mail piece origin, meter information, indicia amount, etc. The franking functions may also include reporting the number of items, value marked and other parameters to the accounting functions. 
     The control functions performed by microprocessor  118  may include utilizing communications port  117  to communicate with the postal infrastructure data center  130 . Communications port  117  generally includes an antenna  190  and support circuitry  195  or other signaling devices  200  for communicating with the postal infrastructure data center  130  through the one or more networks  125   1  . . .  125   n . 
     The signaling devices  200  may provide an air interface, a wired interface, a wireless interface, or an electrical, electromagnetic, radio, infrared, or other suitable facility for communication. The support circuitry  195  may also include location determining circuitry, for example, a GPS facility for determining the location of the meter  115 . 
     The postal infrastructure data center  130  generally has the capability to access one or more of the meters  115   1  . . .  115   n  to exchange information as required. For example, the postal infrastructure data center  130  may access meters  115   1  . . .  115   n  to download additional features, updates, upgrades, programs, diagnostic functions, delivery confirmation or other types of information. The postal infrastructure data center  130  may access meters  115   1  . . .  115   n  to retrieve information including accounting data, status data, and indicia information according to the disclosed embodiments. 
     In one embodiment, communication between meters  115   1  . . .  115   n  and the postal infrastructure data center  130  may be wireless. In other embodiments, the communication may occur through a combination of wireless and wired connections, or only wired connections. 
     Postal infrastructure data center  130  may initiate a data exchange by initially detecting the one or more communications networks  125   1  . . .  125   n  suitable for the data exchange. Postal infrastructure data center  130  may logon or establish a connection to a particular communications network  125  by addressing a message specifically to that communications network. Alternately, Postal infrastructure data center  130  may identify that one or more communications networks  125   1  . . .  125   n  are available for providing communications and may perform a selection process among the available communications networks  125   1  . . .  125   n . For example, postal infrastructure data center  130  may broadcast polling or paging signals in attempt to receive a response from a communication network. In the event that more than one communication network responds, meter  115  may select a responding network based on any combination of signal strength, quality of service, connection speed, cost, etc. 
     Communication networks  125   1  . . .  125   n  may include any suitable communications network, for example, the Public Switched Telephone Network (PSTN), a wireless network, a wired network, a Local Area Network (LAN), a Wide Area Network (WAN), virtual private network (VPN), an air interface, etc. The air interface may include any suitable wireless communication protocols or signaling techniques or standards, for example TDMA, CDMA, IEEE 802.11, Bluetooth, close range RF, optical, any appropriate satellite communication standards, etc. 
     In one embodiment, postal infrastructure data center  130  may utilize cell communication technology and identify a cellular communication network from the one or more networks  125   1  . . .  125   n  using roaming techniques. 
     After postal infrastructure data center  130  has established a connection with an appropriate communication network  125 , postal infrastructure data center  130  then attempts to logon or establish a connection to one or more meters  115   1  . . .  115   n . Postal infrastructure data center  130  may attempt to connect to an individual meter  115  by addressing a message specifically to that meter  115 . Alternately, postal infrastructure data center  130  may identify that one or more meters  115   1  . . .  115   n  are available for communication. 
     For example, postal infrastructure data center  130  may attempt to identify any meters  115   1  . . .  115   n  connected to networks  125   1  . . .  125   n , for example by polling network addresses or other identification techniques. Postal infrastructure data center  130  may also attempt to identify meters  115   1  . . .  115   n  by broadcasting a paging signal or other type of signal that requests a response. In an embodiment using cell communication technology, postal infrastructure data center  130  may place a call to one or more meters  115   1  . . .  115   n . 
     Postal infrastructure data center  130  may be capable of establishing more that one connection to a particular meter  115  and may be capable of establishing a connection to more than one meter  115   1  . . .  115   n  simultaneously. For example, postal infrastructure data center  130  may establish a first connection to a first meter  115   1  for fund replenishment and, during the first connection, may establish a second connection to the first meter  115   1  to download data tables. As another example, postal infrastructure data center  130  may establish a first connection to a first meter  115   1  for fund replenishment and, during the first connection, may establish a second connection to a second meter  115   2  to download data tables. 
     Referring to  FIG. 3 , the postal infrastructure data center  130  may generally include a server  400 , several data bases  410 ,  415 ,  420 , a power facility  425 , for example, a power distribution network, and communication circuitry  430 . Communication circuitry  430  may include an antenna  440  and other circuitry and devices  435  for communication with meters  115   1  . . .  115   n  through the one or more networks  125   1  . . .  125   n . 
     In other embodiments, devices  435  may include suitable circuitry, programs, transmitters and receivers for any appropriate type of wireless communication utilizing radio frequency (RF), infrared (IR), optical, acoustical, any type of electromagnetic based technology, or any other type of wireless communication. The postal infrastructure data center  130  may also include a user interface facility  445  which may provide local users with access to postal infrastructure data center services. 
     Returning to  FIG. 2 , the meter  115  generally provides indicia services locally utilizing a printer  140  and may be capable of franking a label, directly franking a mail piece, or franking any other suitable substrate. Meter  115  is advantageous in that a user may place meter  115  in a specific location on or over a substrate and frank or print an object. 
     The printer  140  may be capable of printing an indicia barcode on any suitable substrate or media, including an adhesive or tacky substrate, and may also be capable of applying a covering over the printed items. For example, the printer  140  may be capable of applying a film or coating over a printed item for protection or to prevent tampering. 
     The printer  140  may be an inkjet, dye sublimation, thermal wax, laser, electrostatic, xerographic, thermal, RF, or any suitable type of printer. In one embodiment, printer  140  may utilize energy beams, having high or low power, for example, RF beams, to print directly onto a substrate. The meter may be capable of generating and the printer  140  may be capable of printing stamps, barcodes, addresses, planet codes, images, text, indicia, logos, graphics, or any other printable item in any desired order. 
       FIG. 4  shows a typical indicia barcode  500 . The typical indicia barcode  500  may include an electronic signature, information regarding the mail piece, mail piece origin, meter information, indicia amount, etc. The barcode generally requires about 89 bytes of information, commonly occupies approximately 1 square inch, and is normally required to be printed at 300 dots per inch (DPI). A number of printing devices within the printer  140 , for example, 2 pens and 1 printhead, are usually required to print such a barcode. As a result, precise alignment of the printing devices is required, the time required to print the barcode is relatively long, and printing the barcode uses a relatively large amount of ink. 
       FIG. 5  shows a reduced barcode  510  according to the disclosed embodiments. The reduced barcode  510  is unique and has a limited amount of information, for example, the amount of funds the indicia represents and a serial number. In one embodiment, the reduced barcode  510  may only require approximately 22 bytes of information and may only occupy approximately 8 square mm when printed. Such a barcode is advantageous because it may be printed using a single pen. 
     The reduced bar code  510  may be produced by the meter  115 . As part of an indicia producing operation, meter  115  may collect all the necessary information to produce a conventional indicia and store the collected information within storage  119  indexed by a serial number, or otherwise using a serial number or some other indicator to point to or designate the collected information. The meter may also transmit the collected information to the postal infrastructure data center  130  for storage. In one embodiment, the amount of funds the indicia represents and the serial number are encoded in the reduced bar code  510 . In another embodiment, the reduced bar code  510  may simply include the serial number and the funds amount may be included with the collected information. 
     As shown in  FIG. 6 , because the reduced barcode  510  occupies a relatively small area relative to the printing capability of the pen, the reduced barcode may be expanded to occupy a larger area. In one embodiment, the area of the expanded barcode  600  may be the printing width of the pen. The information conveyed by the expanded barcode  600  is the same as the information in the reduced barcode  510  but it occupies a larger area. 
     Because the reduced barcode  510  has been expanded and now the same information content occupies more area, the relative resolution required of the pen may be reduced, for example, from 300 DPI to 150 DPI, and the information in the expanded barcode  600  would still be readable even if some information or dots were lost due to the reduction in resolution. 
     As another advantage, because of its low resolution requirement, the expanded barcode  600  may be printed using significantly less ink. In this example, the expanded barcode  600  would still be readable even if some portion of the expanded bar code  600  were lost due to using less ink. 
     In order to ensure uniqueness, the reduced or expanded barcode may be processed or created using the ascending register  160  of the meter  115 . Other processing techniques may also be used to create a unique reduced or expanded barcode. 
     The expanded bar code may be applied to a substrate, for example, an envelope or a mail piece, etc. and the envelope or mail piece may be inserted into a carrier&#39;s mail stream. The carrier may read and decode the expanded indicia and use the serial number or the other indicator to access the meter  115  or the postal data center infrastructure  130  to obtain the collected information, for example, to verify funds information. 
     Thus the disclosed embodiments allow for the production of a barcode with a reduced set of unique information, and allow for expansion of the reduced barcode to a particular size such that the bar code may be printed at a lower resolution or with less ink or both. 
     It should be understood that the foregoing description is only illustrative of the disclosed embodiments. Various alternatives and modifications can be devised by those skilled in the art without departing from the disclosed embodiments. Accordingly, the disclosed embodiments is intended to embrace all such alternatives, modifications and variances which fall within the scope of the appended claims.