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:
May. 02, 1989
Filed:
Mar. 30, 1987
Applicant:
Inventor:
Akio Kondo, Tokyo, JP;
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235380 ; 235492 ;
Abstract
An IC card and an IC card system using this card can be independently operated by a battery built in the IC card. The IC card and its system can detect power supplied from the card terminal and use a clock signal as an operating signal from the card terminal upon detection. Otherwise, a clock signal having a low frequency generated in a clock signal generating section in the card is used as an operating signal, thereby extremely reducing power consumption of the battery built into the card.
Kondo, Akio. (1989). Intelligent-type ic card containing ic circuit and battery (U.S. Patent No. 4827111). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4827111
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile