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. 15, 2005
Filed:
Aug. 09, 2000
Naoki Aihara, Kawasaki, JP;
Hichiro Hayami, Kawasaki, JP;
Iwao Tada, Kawasaki, JP;
Tomoyuki Yamaguchi, Kawasaki, JP;
Naoki Aihara, Kawasaki, JP;
Hichiro Hayami, Kawasaki, JP;
Iwao Tada, Kawasaki, JP;
Tomoyuki Yamaguchi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A method and system including ATM switching equipment provided for switching between a working channel and a protection channel in an ATM network. The method and system include the following processes: In each cell for transmission providing an indication of whether the cell belongs connection currently in a working state via a working channel; cells are duplicated on each connection basis; the duplicated cells are transmitted simultaneously on both a working channel and a protection channel; and valid cells are selected from received cells according to the indication in each cell indicating whether the relevant connection is currently in a working state.