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. 04, 2012
Filed:
Mar. 15, 2010
Koji Tanonaka, Kanagawa, JP;
Kenji Watanabe, Kanagawa, JP;
Tomoyuki Suzuki, Kanagawa, JP;
Akihisa Kawaguchi, Kanagawa, JP;
Koji Tanonaka, Kanagawa, JP;
Kenji Watanabe, Kanagawa, JP;
Tomoyuki Suzuki, Kanagawa, JP;
Akihisa Kawaguchi, Kanagawa, JP;
Fujitsu Telecom Networks Limited, Kanagawa, JP;
Abstract
An integrated transmission apparatus includes a plurality of optical supervisory channel (OSC) processing units for processing OSC signals contained in a wavelength division multiplexing (WDM) signal received from a WDM network and a switching unit for performing the path control of synchronous digital hierarchy (SDH) frames. An OSC processing unit transmits the SDH frame, containing wavelength information indicated by, to the switching unit. Another OSC processing unit acquires the SDH frame, containing wavelength information, from the switching unit and sets an OSC signal which is to be appended to the WDM signal to be transmitted, based on the wavelength information.