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.

Date of Patent:
Mar. 13, 2012

Filed:

Dec. 21, 2006
Applicants:

Yoshiaki Kisaka, Yokosuka, JP;

Shigeki Aisawa, Yokosuka, JP;

Yutaka Miyamoto, Yokosuka, JP;

Masahito Tomizawa, Yokosuka, JP;

Yasuyuki Endoh, Machida, JP;

Kazuhito Takei, Fijisaw, JP;

Inventors:

Yoshiaki Kisaka, Yokosuka, JP;

Shigeki Aisawa, Yokosuka, JP;

Yutaka Miyamoto, Yokosuka, JP;

Masahito Tomizawa, Yokosuka, JP;

Yasuyuki Endoh, Machida, JP;

Kazuhito Takei, Fijisaw, JP;

Assignee:

NTT Electronics Corporation, Yokohama-shi, Kanagawa, unknown;

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

An optical transmission system for performing frequency synchronization even with a client signal with low frequency accuracy, and for transmitting thereof by accommodating/multiplexing without causing a bit slip. A new overhead is added to the entire client signal, and the signal including the new overhead being stuffed is transmitted in conjunction with a plurality of stuffing bits as an optical signal wherein a data storing bit for a negative stuffing, a stuffing information notification bit, and a stuff bits inserting bit for a positive stuffing in the payload are defined in plurality as stuffing bits for adjusting clock frequencies of the client signal in this new overhead.


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