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 7421210 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 02, 2008

Filed:

Nov. 30, 2004
Applicant:

Tetsuya Miyazaki, Tokyo, JP;

Inventor:

Tetsuya Miyazaki, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/04 (2006.01); H04B 10/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical transmitter splits a linear polarization optical carrier into a TE wave and a TM wave. One of the TE wave and the TM wave is phase-modulated with a transmission data so as to generate a phase-modulated signal. The phase-modulated signal and the other one of the TE wave and the TM wave are coupled with a linear polarization and output into an optical transmission line. An optical receiver splits a light input from the optical transmission line into the TE wave and the TM wave. The TM wave or TE wave is converted into the TE wave or TM wave to interfere with the TE wave or TM wave. The interfered signal light is converted into an electric signal for restoration of the data.


Find Patent Forward Citations

Miyazaki, Tetsuya. (2008). Optical transmission method and system (U.S. Patent No. 7421210). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7421210

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

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