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:
Aug. 03, 1999
Filed:
Dec. 09, 1996
Jerome Drexler, Los Altos Hills, CA (US);
Drexler Technology Corporation, Mountain View, CA (US);
Abstract
A method and system for inhibiting the counterfeiting of electronic cash smart cards that use microchips for monetary stored value. Such cards have recently been counterfeited by the use of electronic techniques to break the security codes. Such counterfeiting can be inhibited by bonding an optical memory stripe to the smart card with pre-recorded or post-recorded validation data on the cards. This optical validation data would be read with a photodetector array and could be transmitted to the recipient during funds transfer and/or used locally to control dispensing of cash. Thus successful counterfeiting of the modified electronic cash card would require meeting exacting electronic and optical requirements.