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:
Sep. 22, 2009
Filed:
Jun. 19, 2006
Applicants:
Osamu Kagaya, Tokyo, JP;
Michihide Sasada, Yokohama, JP;
Inventors:
Osamu Kagaya, Tokyo, JP;
Michihide Sasada, Yokohama, JP;
Assignee:
Opnext Japan, Inc., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided an optical receiver in which, between an optical receiver sub-assembly and a pre-amplifier on a main printed circuit board, two transmission lines on a flexible printed circuit board for connecting an optical receiver module with the main printed circuit board, a balanced-type attenuator circuit composed of four resistor elements, and two capacitor elements connected in parallel with the balanced-type attenuator circuit are provided.