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. 13, 2001
Filed:
Jul. 15, 1998
Applicant:
Inventors:
Garry N. Link, Aloha, OR (US);
Christopher G. Martinez, Portland, OR (US);
Assignee:
Maxim Integrated Products, Inc., Sunnyvale, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/004 ; H04B 1/000 ; H01S 3/13 ;
U.S. Cl.
CPC ...
H04B 1/004 ; H04B 1/000 ; H01S 3/13 ;
Abstract
The present invention is a method and apparatus for controlling a drive current of an optical transmitter having a laser. A sensing circuit generates a sensing signal responsive to an intensity of an optical radiation emitted by the laser. An error circuit is coupled to the sensing circuit to generate an error quantity in response to the sensing signal. An updating circuit is coupled to the error circuit to update a control quantity based on the error quantity synchronously with an input signal. The control quantity controls the drive current.