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:
Jan. 15, 2013
Filed:
Jan. 21, 2010
Mitsuhiro Kawaguchi, Kawasaki, JP;
Shosaku Yamasaki, Kawasaki, JP;
Shigeo Tani, Kawasaki, JP;
Hideki Matsui, Kawasaki, JP;
Mitsuhiro Kawaguchi, Kawasaki, JP;
Shosaku Yamasaki, Kawasaki, JP;
Shigeo Tani, Kawasaki, JP;
Hideki Matsui, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In a transmission apparatus, unlike in the conventional transmission apparatus, a protection switch is not arranged on the signal path, but a TSI having only the basic function performs the function of the protection switch as a substitute, a processing unit to perform the switching function at a low rate is artificially constructed on a TSI, the switch process of SONET protection type is artificially executed by the TSI, and a signal for controlling the TSI function is further controlled thereby to realize the protection switch function. The logic of switching at the main signal rate in addition to the conventional TSI function is deleted.