Method and an apparatus for electronically compressing a transaction with a human signature

• US 5,091,975 A
• Filed: 01/04/1990
• Issued: 02/25/1992
• Est. Priority Date: 01/04/1990
• Status: Expired due to Term

• Current Assignee: Rocket Software Incorporated
• Original Assignee: Teknekron Communications Systems Incorporated
• Inventors: Miller, Daniel H., Berger, Toby
• Primary Examiner(s): Razavi, Michael
• Assistant Examiner(s): Cammarata, Michael
• Application Number:
  US07/460,755
• Time in Patent Office: 782 Days
• Field of Search: 382/3, 382/56, 382/21, 358/261.3, 902/22, 902/39, 364/405, 235/379
• US Class Current: 382/123
• CPC Class Codes: G06Q 20/20 Point-of-sale [POS] network systems
• CPC Class Codes: G06Q 20/40 Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
• CPC Class Codes: G06Q 20/4014 Identity check for transactions
• CPC Class Codes: G06V 40/30 Writer recognition; Reading and verifying signatures
• CPC Class Codes: G07C 9/247 electronically, e.g. by comparing signal of hand-writing with a reference signal from the pass

Abstract

In the present invention a method of compressing a signature signal is disclosed. The signature signal is divided into a plurality of signature segment signals where each segment is encoded by using a modified ring-encoding method, such that the total number of grid points along the perimeter of all the rings can be stored in an 8-bit byte. In one embodiment of the method of the present invention, a Fibonacci series is used to determine the relative spacing of the rings. The present invention also discloses a method and apparatus for electronically processing a POS transaction with a human signature for verification of the transaction, as well as for request of extension of credit by a credit company. The signature is electronically captured, compressed and combined with a transaction signal which is representative of the transaction. The record signal is then processed by the credit company for verification of the transaction or for requesting extension of credit.

Claims

1. A method for electronically processing a transaction having a human signature for verification of said transaction, said method comprising the steps of:

electronically capturing said transaction at said point of transaction to form a transaction signal;

electronically capturing said human signature at said point of transaction to form a signature signal;

compressing said signature signal to form a compressed signature signal;

dividing said signature signal into a plurality of signature segment signals;

encoding each signature segment signal by selecting N rings sized by the Fibonacci series of

2. 2, 3, 5, 8, 13

in a Modified Ring Encoding Method with each ring having a number of grid points, and where the total number of grid points is less than or equal to 256;

combining said compressed signature signal with said transaction signal to form a record signal; and

processing said record signal.

3. A method for electronically processing a transaction having a human signature for verification of said transaction, said method comprising the steps of:

electronically capturing said transaction at said point of transaction to form a transaction signal;

electronically capturing said human signature at said point of transaction to form a signature signal;

compressing said signature signal by a first compressing method to form a first compressed signature signal;

compressing said signature signal by a second compressing method different from said first method to form a second compressed signature signal;

comparing said first compressed signature signal to said second compressed signature signal;

selecting the smaller size of the two first and second compressed signature signal as the compressed signature signal and using an additional bit to distinguish the two methods;

combining said compressed signature signal with said transaction signal to form a record signal; and

processing said record signal.

4. An apparatus for electronically processing a transaction having a human signature for verification of said transaction, said apparatus comprising:

means for electronically capturing said transaction at said point of transaction to form a transaction signal;

means for electronically capturing said human signature at said point of transaction to form a signature signal;

means for dividing said signature signal into a plurality of signature segment signals;

means for encoding each signature segment signal by selecting N rings sized by the Fibonacci series of

1, 2, 3, 5, 8, 13

in a Modified Ring Encoding Method with each ring having a number of grid points along its perimeter, and where the total number of grid points in less than or equal to 256;

means for combining said compressed signature signal with said transaction signal to form a record signal; and

means for processing said record signal.

5. An apparatus for electronically processing a transaction having a human signature for verification of said transaction, said apparatus comprising:

means for electronically capturing said transaction at said point of transaction to form a transaction signal;

means for electronically capturing said human signature at said point of transaction to form a signature signal;

means for compressing said signature signal by a first compressing method to form a first compressed signature signal;

means for compressing said signature signal by a second compressing method to form a second compressed signature signal;

means for comparing said first compressed signature signal to said second compressed signature signal;

means for selecting the smaller size of the two first and second compressed signature signal as the compressed signature signal and using an additional bit to distinguish the two methods;

means for combining said compressed signature signal with said transaction signal to form a record signal; and

means for processing said record signal.