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:
Oct. 03, 2006
Filed:
Mar. 27, 2002
Susumu Kinoshita, Plano, TX (US);
Koji Takeguchi, Richardon, TX (US);
Satoru Odate, Richardson, TX (US);
Cechan Tian, Plano, TX (US);
Susumu Kinoshita, Plano, TX (US);
Koji Takeguchi, Richardon, TX (US);
Satoru Odate, Richardson, TX (US);
Cechan Tian, Plano, TX (US);
Fujitsu Limited, Kawasaki, JP;
Abstract
A method and system for control signaling in an open ring optical network includes transmitting traffic in an optical ring. At each of a plurality of nodes along the ring, local traffic is passively added to and passively dropped from the connected ring. At each node, an ingress optical supervisory channel (OSC) signal is dropped from the ring to a managing element. An egress OSC signal is added to the ring from the managing element. The OSC signals may be in-band signal or out-of-band signals.