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.:

US 9203520 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 01, 2015

Filed:

Oct. 03, 2013
Applicant:

Fujitsu Optical Components Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Kensuke Takahashi, Kawasaki, JP;

Shinichi Sakuramoto, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 10/06 (2006.01); H04B 10/60 (2013.01); H04B 10/69 (2013.01);
U.S. Cl.
CPC ...
H04B 10/60 (2013.01); H04B 10/695 (2013.01);
Abstract

A detecting apparatus includes a threshold detection circuit that detects by a switchable time constant, a threshold of a level of an input optical burst signal; an input detection circuit that detects input of the optical burst signal; a level detection circuit that detects a level of the optical burst signal; a switching circuit that switches the time constant when a period that corresponds to the level detected by the level detection circuit has elapsed after the input is detected by the input detection circuit; and an output circuit that outputs the threshold detected by the threshold detection circuit.


Find Patent Forward Citations

Takahashi, Kensuke. (2015). Detecting apparatus, optical receiving apparatus, detecting method, and optical receiving method (U.S. Patent No. 9203520). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9203520

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