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:
Feb. 04, 1992
Filed:
Jun. 20, 1986
Applicant:
Inventors:
Masahiro Takei, Kanagawa, JP;
Motokazu Kashida, Tokyo, JP;
Koji Takahashi, Kanagawa, JP;
Kenichi Nagasawa, Kanagawa, JP;
Toshiyuki Masui, Kanagawa, JP;
Tsutomu Fukatsu, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 60 ; 360 744 ;
Abstract
An apparatus for recording and reproducing information signals on and from a recording medium is arranged to cancel out an instruction for recording an information signal if some information signal has already been recorded on the medium.