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. 27, 1994
Filed:
Dec. 28, 1993
Applicant:
Inventor:
Ryoji Honda, Saitama, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 38 ; 372 29 ; 372 26 ; 372 25 ; 372 31 ;
Abstract
A laser driving circuit that controls an intensity of a laser beam emitted by a laser diode to become a predetermined destination value. The predetermined destination value is shifted to a lower value when at least one of a plurality of predetermined signals is not inputted to the laser driving circuit. The lower value is shifted to the predetermined destination value a predetermined period after all of the predetermined signals have been inputted to the laser driving circuit.