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. 03, 1998
Filed:
Oct. 16, 1992
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A recording or reproducing apparatus capable of using power sources of different kinds, each having a different characteristic, is provided with a discriminating switch for discriminating the kind of the power source by means of the configuration of the electrodes of the power source and producing a discrimination result. The electrodes of each kind of power source are formed to have a different configuration. The execution or non-execution of an erasing operation is controlled in accordance with the discrimination result. In addition, an auto-shut-off circuit automatically shuts off the operation of the power source if an inoperative state continues for a predetermined time period, and the predetermined time period is set in accordance with the discrimination result.