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. 30, 1994
Filed:
Mar. 04, 1991
Applicant:
Inventor:
Hidetaka Suzuki, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365228 ; 365229 ;
Abstract
An electronic apparatus of the invention uses memory information in each of the first memory area to store the end time of the power supply which was executed from the apparatus main body side to a memory card and the second memory area to store information regarding a residue time of a backup power supply element in the memory card which are provided in a memory element in the memory card and the present time information, thereby actually updating the residue information of the backup power supply element in the memory card. The residue information of the backup power supply element every memory card can be individually accurately managed.