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 8538268 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 17, 2013

Filed:

Nov. 17, 2011
Applicant:

Futoshi Izumi, Kawasaki, JP;

Inventor:

Futoshi Izumi, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 14/08 (2006.01); H04J 14/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical signal demultiplexing device includes a demultiplexing unit that receives an optical signal multiplexed by an optical time-division system and a synchronization pattern, and demultiplexes the optical signal based on the synchronization pattern. The optical signal demultiplexing device also includes a pulse-width increasing unit that makes optical signals demultiplexed by the demultiplexing unit generate chirp, and increases the pulse widths of the optical signals generating the chirp by passing the optical signals through a wavelength dispersion medium.


Find Patent Forward Citations

Izumi, Futoshi. (2013). Optical signal demultiplexing device and optical signal demultiplexing method (U.S. Patent No. 8538268). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8538268

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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