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:
May. 16, 1989
Filed:
Feb. 29, 1988
Applicant:
Inventor:
Shigeto Kanda, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369109 ; 369106 ; 369124 ;
Abstract
Disclosed are optical information reproducing method and apparatus wherein an information carrying member having an information pattern recorded thereon is irradiated by plural light beams which are spaced from each other in the direction of tracing of the information pattern, the light beams modulated by the information pattern are simultaneously and independently photoelectrically converted, and a predetermined operation is effected relative to the outputs obtained by the photoelectric conversion to thereby generate a reproduction signal with respect to the recorded information.