The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 1987
Filed:
Feb. 20, 1986
Warner C Scott, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Disclosed is a method for determining whether or not two signatures were written by the same individual. An X-Y data tablet indicates the location of the writing instrument at a predetermined clock pulse rate as the signature is written. A number string is generated which indicates the relationship between sequentially determined locations of the writing instrument as it moves to different locations on the X-Y data tablet. The quantity of numbers within the number string is an indication of the distance between sequentially determined locations and the value of the numbers within the number string is an indication of the direction of movement between sequentially determined locations. Series of number strings form a waveform representative of the signature as written by the individual. The waveform of the sample signature is compared with the waveform of a reference signature and an output is provided indicating whether or not the sample signature and the reference signature were made by the same individual.