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:
Nov. 16, 1993
Filed:
Jan. 13, 1992
Applicant:
Inventors:
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358209 ; 358909 ; 358335 ;
Abstract
A memory card has a volatile semiconductor memory for storing therein image data, a built-in battery as a backup power for preserving the image data in the volatile semiconductor memory, and a non-volatile memory for storing therein data related to an alarm of a decrease in a voltage of the built-in battery. When the memory card is loaded on the digital, electronic, still camera, the data concerning the alarm state is read from the loaded memory card and the voltage value of the battery is sensed. If the value of the battery voltage thus determined is less than a threshold voltage attained from the data read from the memory card, an alarm is notified.