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:
Jan. 29, 2002
Filed:
Mar. 26, 1999
Applicant:
Inventor:
Hideaki Satoh, Tokyo, JP;
Assignee:
OKI Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 4/014 ;
U.S. Cl.
CPC ...
H01J 4/014 ;
Abstract
An optical signal receiver producing an output signal from a received optical signal also generates two complementary signals from the output signal, integrates the two complementary signals, and takes the difference between the two integrated signals. The difference signal is used to control a bias current supplied to the input terminal of an amplifier that generates the output signal signal. Alternatively, the difference signal controls the gain of the amplifier. Output distortion is thereby corrected without requiring external adjustments.