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:
Mar. 07, 1989
Filed:
Nov. 13, 1987
Robert N Goldman, Honolulu, HI (US);
Light Signatures, Inc., Los Angeles, CA (US);
Abstract
A document identification system incorporating an identification card bearing image indicia that is sensed and tested for comparison with reference data. The image indicia on the card, e.g. a photographic likeness of the card assignee, is dissected to provide representative pixel data. Individual image pixel representations are quantized, digitized and stored in an escort memory, e.g. a magnetic stripe on the card. The card is verified by again sensing the image indicia and processing the data as before. The resultant test data is correlated with the reference data from the escort memory. The composite indication of the correlation is manifest as an acceptance or a rejection and also as a two-dimensional binary display (black or white pixel areas) to reveal an analysis of the correlation for manual interpretation. The display is variable for different levels of detail.