Method for remote postage meter resetting by facsimile communication

Abstract: A system and method for the recharge of postage meters. A request for recharge of a postage meter is transmitted to a remote location as a facsimile image. The information in the request is extracted using OCR or similar techniques and transmitted to a data processing center which verifies the request and, if verified, returns a unique code which will recharge the requesting meter. The code is transmitted to the requesting meter as a second facsimile image.

Description: The subject invention relates to a method for remote resetting of postage meter systems. More particularly it relates to the use of facsimile communications in postage meter resetting. A system for the remote resetting (or recharging) of postage meters is marketed by the assignee of the present application under the trademark "Postage-By-Phone" and is described in U.S. Patent No. 4,097,923; to: Eckert et al. Briefly stated to recharge a meter an operator obtains an "access code" from the meter. This code represents an encryption of at least a "control sum" and the meter serial number, where the control sum corresponds to the total amount of funds with which the meter has been charged to date. This access code is generated by the meter and may be read from the meter display upon operator request. The operator then communicates the access code, the amount by which the meter is to be recharged, an account number against which the recharge amount is to be debited, and the meter identification number to a remote data processing center. At the data processing center the access code is validated and a "combination code" (sometimes hereinafter "recharge code") is generated as a function of at least the amount by which the meter is to be recharged and the meter identification number. This recharge code is communicated to the operator who enters the amount together with the recharge code into the postage meter through its keyboard. The postage meter then validates the recharge code and increments the descending register of the meter by the amount requested. (As is well known in the postage meter art the descending register of a postage meter is decremented by the amount of postage, and the ascending register is incremented by that amount, each time the meter prints an indicia. The control sum is thus the sum of the contents of the descending and ascending registers. The meter is of course designed so that it will not print postage if sufficient funds are not available in the descending register.) Generally, the operator communicates with the remote data processing center through a "touch-tone" phone to enter information directly into a data processing system at the remote center using well known "Touch-Tone" techniques for data communication. ("Touch-Tone" is a trademark of AT&T Corporation for transmission of data over the telephone lines using unique tones generated by the keypad of a telephone.) A voice synthesis system at the remote center then communicates the combination code to the user over the telephone, who then manually enters it into the postage meter. In the event a "Touch-Tone" telephone is not available the user may communicate with the remote data processing center through an operator. While "Postage-by-Phone" has been highly successful and is widely accepted for the recharging of postage meters a transaction as described above requires the operator to enter approximately 60 key strokes. This large amount of data entry required of the operator increases the possibility of mistakes. Conventional resetting by data exchange over an unsecure telephone line is known from EP-A-0376573, US-A-4097923, GB-A-2178696, GB-A-2188877 or GB-A-2080203. US-A-4 608 487 describes a rending machine having a scanner for reading bar-coded operational data. Thus it is an object of the subject invention to provide a method for the remote recharging of postage meters which decreases the amount of operator intervention required and reduces the opportunities for error. It is another object of the subject invention to provide such a method which requires minimal changes to existing remote postage meter recharging systems. First and second aspects of the invention are set out in Claims 1 and 2. Thus it can be seen that the method of the subject invention advantageously achieves the above objects. It is another advantage of the subject invention that the forms provide the user with a permanent, printed record of each transaction. It is still another advantage of the subject invention that the forms may include preprinted instructions for conducting a transaction, thus eliminating the problem of misplaced or forgotten instructions and the resulting error and delays. It is still another advantage of the subject invention that preprinted, serialized request forms provide an additional level of security in that such forms may be placed under lock and key. It is still a further advantage of the subject invention that the request forms may include reminders and check offs for ordering meter supplies such as tapes and inks. Other objects and advantages of the subject invention will be readily apparent to those skilled in art from consideration of the detailed description set forth below and of the attached drawings, in which: Figure 1 shows a system for facsimile communications of postage meter recharging information in accordance with the subject invention; Figure 2 shows a postage meter which may be recharged in accordance with the subject invention; Figure 3 shows a form for requesting recharge of a postage meter in accordance with the subject invention; Figure 4 shows indicia which provide a guide for entry of data into a form in machine readable form; and Figure 5 shows a form bearing an image which includes a representation of an amount by which a postage meter is to be recharged and a corresponding recharge code. Brief Description Of Preferred Embodiments Of The Invention In the system of Figure 1, a conventional facsimile system 10 is provided at the location of a postage meter user. Facsimile system 10 need not be a dedicated system but may be any conventional, conveniently located facsimile system available to the user. At a remote data processing center, which is preferablly a "Postage-by-Phone" data processing center such as is operated by the assignee of the present application, a second facsimile system 20 is provided. Preferably system 20 will be a dedicated system. Facsimile systems 10 and 20 communicate over the public switched telephone network, or in any other convenient manner. Facsimile system 20 is connected to image processor 40 and transmits received images electronically to processor 40 without printing of a tangible copy. Systems for directly connecting facsimile systems to data processing systems such as image processor 40 are commercially available and include systems such as that marketed under the trademark PATH by the assignee of the present application, and need not be discussed further for an understanding of the subject invention. In another embodiment image processor 40 transmits images for display to an operator at station 80 when processor 40 is unable to extract necessary information from such images so that the operator may intervene to interpret the image. As will be seen from the discussion below, image processor 40 extracts data from images transmitted by system 10 and received by system 20 in a conventional manner. Typically, extraction of such information will involve reading bar code, simple character recognition of numerals, or simple mark sensing. All of these techniques are conventional, and well known in the art, and may be performed by any commercially available microprocessor based computer, and need not be discussed further here for an understanding of the subject invention. Image processor 40 then converts this information into digital information in a format compatible with data processor 50 and transmits the information to data processor 50. Note that this information appears to data processor 50 to be identical to information received as "Touch-Tone" signals in existing remote meter recharging data processing centers. Accordingly, no changes need be made in the operation of data processing center 50. Data processor 50 then returns the recharge code and other information to image processor 40 which converts the information into an image of a standard form and transmits the image to facsimile system 20, again in a conventional, known manner, for transmission over network 30 to facsimile system 10. Facsimile system 10 then prints the received image for use by an operator in recharging a postage meter. In using the system of Figure 1 an operator first obtains an access code from a postage meter to be recharged, as shown in Figure 2. As is conventional in the postage meter art the access code is an encryption of at least the control sum of the meter and the meter identification number, and so is a unique, unpredictable number for each transaction. The operator then enters the access code and the amount by which the meter is to be recharged onto form 60, which will be described in more detail below. Form 60 also includes additional information, in machine readable form, representing the meter identification number and account against which the recharge amount is to be charged. The operator then controls facsimile system 10 to dial-up facsimile system 20 and transmits form 60. As described above the image of form 60 is received by system 20, the information for the recharge request is extracted by image processor 40, and transmitted to data processor 50. Assuming that there are sufficient funds in the account and the request is otherwise in order, data processor 50 generates a unique, unpredictable recharge code as an encryption of at least the amount requested and the access code and transmits this information to image processor 40, which converts the information into an image of a predetermined form. Image processor 40 then transmits the image to facsimile system 20 which, in turn, transmits the image to facsimile 10 over telephone network 30. Facsimile system 10 then prints a copy of the image as form 70R, for use by the operator in recharging the postage meter. In another embodiment station 80 includes a display such as a CRT or a graphic printer to display images which cannot be recognized by processor 40. An operator can then attempt to recognize the image and input the correct data. If the image is unrecognizable the operator can control the system of Figure 1 to send a request for retransmission form to facsimile system 10. In another embodiment of the subject invention facsimile system may print a copy of form 60 or 70 which may then be entered by an operator through data entry station 80 in a conventional manner. Station 80 includes a scanner and image processing system to automatically extract the information from copy 60R or 70R. When the operator receives copy 70R the operator may enter the information into a postage meter, such as postage meter 100 in Figure 2. The information in copy 70R is in machine readable form and may be entered through scanner 110. Postage meter 100 is provided with a port for digital communication in parallel with the keyboard. Thus any data which may be entered through the keyboard may be entered through the port, and meter 100 may be operated from a remote station. Thus data from copy 70R may be entered through scanner 110, which is preferably a conventional, commercially available bar code scanner, and converted to digital information for transmission to meter 100. Details of the protocol for communication with postage meter 100 are provided in US Patent No. 4,422,148; to: Soderberg et al., and need not be discussed further here for an understanding of the subject invention. Figure 3 shows form 60 for use in requesting recharge of a postage meter in accordance with the subject invention. Field 200 in form 60 contains indicia which identify the operator of the postage meter recharging system and the user of the particular meter to be recharged. Field 210 contains indicia representing a transfer authorization number and a blank for entry of the date. This information is useful in providing an audit trail of meter recharges. Field 230 provides a blank for entry of the amount of recharge in both numeric and written form for record keeping purposes. Field 240 provides a field for entry of the amount in machine readable form, and includes indicia 242 which serve as guides for such entry. In the embodiment shown the machine readable form enables simple mark sensing where a digit is represented by circling or crossing out the indicia representing that digit and the value is sensed by detecting the position of the mark so made. Such a system for entering data into a form in a machine readable form is well known, and will be familiar to anyone who has taken a national multiple choice test which is machine graded. Field 250.contains indicia representing the account number to be charged and the meter identification number in human readable form in order to assure that the proper form is used when a particular meter is recharged. Corresponding field 252 contains the same information in machine readable form, preferably conventional bar code. Field 260 contains blanks for the entry of the access code in human readable form for record keeping purposes. Field 270 is provided for entry of the access code in machine readable form and, again, includes indicia 272 to guide entry of such information. Field 280 includes instructions for use of the form and field 290 provides a signature block to provide a further control for an audit trail. In another embodiment of the subject invention information may be entered simultaneously in human and machine readable form by providing for character recognition in place of mark sensing as shown. This may be enhanced by providing indicia as shown in fig. 4 which represent guides for entry of numerals in the well known seven segment form which will be familiar to anyone who has used a self service gas pump. Generally such a guide would be printed in a conventional manner in a pale blue ink or in some other manner which would not be detected when scanning form 60. By so limiting the character set to numerals in seven segment form the character recognition task is highly simplified and is easily within the ability of a person of ordinary skill in the art. In another embodiment of the subject invention form 60 may be used more generally by providing for entry of the meter identification number and/or account number in machine readable form by the operator in a manner as described above. Figure 5 shows second image 70 in accordance with one embodiment of the subject invention. Image 70 includes field 300 which contains indicia representing the operator of the remote postage meter recharging system and the user of the particular postage meter. Field 320 contains the date and time of the transaction, field 330 contains the amount of the recharge in written and numeric form and field 340 contains indicia representing the meter identification number and the account number in human readable form. Information in these fields is useful for record keeping purposes. Field 350 contains machine readable indicia, preferably conventional bar code, which represents the amount by which the meter is to be recharged, as well as additional information representing any additional command signals necessary to enter the amount in accordance with the operation of postage meter 100. Field 360 contains indicia representing the recharge code and necessary command signals in the same manner. Field 370 contains instructions for assuring that fields 350 and 360 are entered in the proper sequence. When fields 350 and 360 are scanned by scanner 110, scanner 110 converts the information represented by the bar code into digital signals corresponding to key strokes of keyboard 120 and transmits this information to postage meter 100 which is then recharged in a known, conventional manner. Field 380 contains additional instructions allowing the user to check that the transaction has been successfully completed. The above embodiments of the subject invention have been provided by way of illustration only and other embodiments will be apparent to those skilled in the art from consideration of the above description and the attached drawings. Particularly systems other than simple stand alone postage meters are known, including manifest based systems where postage is dispensed for an entire batch of mail at one time, and the use of the subject invention with such systems is within the contemplation of the subject invention. Accordingly, limitations on the subject invention are to found only in the claims set forth below.

Claims: A method for recharging a postage metering system comprising the steps of: a) entering recharge information by manually marking a pre-printed form (60) to generate machine-readable indicia on said form (60), said recharge information identifying the amount by which said postage metering system is to be recharged; b) transmitting an image of said form to a remote data processing center; c) transmitting data signals representing an image of said received recharge information to an image processor (40), said image processor operating on said data signals to recognize said machine-readable indicia and extract said recharge information, and said extracted recharge information is translated into second data signals in accordance with a predetermined protocol for entry into a data processor (50); d) said data processor responding to said recharge information to provide a recharge code (400) as a function of said amount; e) generating a second image (700) including a machine-readable representation of said recharge code (400); f) transmitting by electronic data transmission a facsimile of said second image to the location of said postage metering system; g) receiving and scanning said second image at said location, electronically extracting said recharge code from said second image, and entering said recharge code into said postage metering system; whereby said postage metering system is recharged by said amount. A method for providing a recharge code for recharging a postage metering system, comprising: a) inputting a specified amount to data processing means (50), by receiving an input image, said image including a machine-readable representation of said amount in the form of a manually marked pre-printed form (60), said inputting step comprising processing data signals representing said input image using an image processor (40), said image processor operating on said data signals to recognize said machine-readable indicia and extract said recharge information for input to said data processing means; b) said data processing means generating a recharge code for a postage metering system as a function of said specified amount; c) outputting, responsive to said data processing means, an output image including a machine-readable representation of said recharge code; and d) transmitting said image to the location of said postage metering system. A method as described in claim 1 or 2 wherein said image processor further includes means (80) for output of images for display to an operator and second input means for input of signals representative of information represented by said image, whereby said system may display said input image for operator intervention when said image processor fails to extract said recharge information. A method according to any preceding claim wherein said second image is in bar code format.

Inventors: SCHULZ KENNETH A, SCHULZ, KENNETH A.
Applicants: PITNEY BOWES INC, PITNEY BOWES INC.
Application year: 1991
Main classification: G07B17
IPC codes: H04N1, G07B17