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:
Dec. 10, 1991
Filed:
Jul. 17, 1989
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 71 ; 360 75 ; 360 9902 ; 369 53 ; 369 58 ; 369233 ;
Abstract
A recording or reproducing apparatus is provided with a device for detecting and memorizing the replacement of a recording medium made even after a power supply is cut off. This prevents any error from occurring in a preset sequence of automatic operation processes to be carried out after the power supply is switched on, such as an automatic blank recording-track detecting operation.