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:
Apr. 16, 2002
Filed:
Jan. 13, 1999
Applicant:
Inventors:
Tsukasa Takehana, Tokyo, JP;
Nobutaka Watanabe, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/000 ; H04B 1/002 ;
U.S. Cl.
CPC ...
H04B 1/000 ; H04B 1/002 ;
Abstract
An optical surge suppressing apparatus includes an output light level compensating circuit, an optical surge compressing circuit, and an optical amplifier. The output light level compensating circuit compensates for a level drop generated in input signal light. The optical surge compressing circuit suppresses an optical surge generated in the input signal light. The optical amplifier outputs the input signal light in which the level drop is compensated for by the output light level compensating circuit and the optical surge is suppressed by the optical surge compressing circuit.