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:
Dec. 11, 2012
Filed:
Oct. 12, 2011
Kazuhito Ikai, Tokyo, JP;
Hiroshi Nakaishi, Tokyo, JP;
Yasuhisa Kanda, Tokyo, JP;
Yoshitaka Nakao, Tokyo, JP;
Kazuhito Ikai, Tokyo, JP;
Hiroshi Nakaishi, Tokyo, JP;
Yasuhisa Kanda, Tokyo, JP;
Yoshitaka Nakao, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An optical communication system includes a first optical communication apparatus configured to insert a wavelength control signal in a main signal to produce a modified main signal; convert the modified main signal into a first optical signal; and transmit the first optical signal, and a second optical communication apparatus configured to receive the first optical signal; extract the wavelength control signal from the received first optical signal; determine a wavelength of a second optical signal based on the extracted wavelength control signal; and transmit the second optical signal to the first optical communication apparatus.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile