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:
Feb. 05, 2008
Filed:
Jan. 18, 2005
Osamu Takeuchi, Kawasaki, JP;
Yuuji Kamura, Kawasaki, JP;
Hideaki Arao, Kawasaki, JP;
Hirotaka Morita, Kawasaki, JP;
Hiroyuki Ohgaki, Kawasaki, JP;
Osamu Takeuchi, Kawasaki, JP;
Yuuji Kamura, Kawasaki, JP;
Hideaki Arao, Kawasaki, JP;
Hirotaka Morita, Kawasaki, JP;
Hiroyuki Ohgaki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A packet transmission system is disclosed. The system serves between terminal apparatuses that include a supervisory control circuit configured to transmit a supervisory signal in a direction opposite to the transmission direction of a main signal on each of and both of an upstream circuit and a downstream circuit. The packet transmission system transmits overhead information of a packet frame of the main signal of the upstream circuit and the downstream circuit using the supervisory control circuit of the downstream circuit and the upstream circuit, respectively.