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:
Sep. 29, 1987
Filed:
Aug. 27, 1985
Applicant:
Inventor:
Shigeyuki Kawana, Tokyo, JP;
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235380 ; 235379 ;
Abstract
A card holder inputs personal identification number (PIN') data as secret data and transaction data (AMT) in an LSI in an identification card through a keyboard. The LSI calculates encrypted data (SAN) in accordance with the input data (PIN' and AMT). The encrypted data (SAN) is shown by the card holder to a cashier at a point-of-sales (POS) terminal. The POS terminal performs authentication of the card and the card holder in accordance with the encrypted data (SAN).
Kawana, Shigeyuki. (1987). Identification card and authentication system therefor (U.S. Patent No. 4697072). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4697072
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile