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:
Apr. 09, 2013
Filed:
Jan. 25, 2011
Yukihisa Tamura, Yokohama, JP;
Masatoshi Shibasaki, Yokohama, JP;
Mitsuru Asayama, Yokohama, JP;
Tsutomu Kawaizumi, Funabashi, JP;
Kenji Okamoto, Yokosuka, JP;
Yukihisa Tamura, Yokohama, JP;
Masatoshi Shibasaki, Yokohama, JP;
Mitsuru Asayama, Yokohama, JP;
Tsutomu Kawaizumi, Funabashi, JP;
Kenji Okamoto, Yokosuka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A network system having duplicate lines of a primary system and a backup system between a transmitter apparatus and a receiver apparatus is provided. Each of the transmitter apparatus and the receiver apparatus includes an arithmetic operator for conducting a BIP-8 arithmetic operation and a CRC arithmetic operation on an input signal and thereby detecting a bit error. The transmitter apparatus transmits data to both lines. The receiver apparatus includes a switcher. When a bit error is detected in received data of the primary system. the switcher switches control of the primary system and the backup system. Hitless protection switching of a VC path is executed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile