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:
Nov. 19, 1996
Filed:
Feb. 17, 1993
Kouichi Kitano, Fukuoka, JP;
Atsuhiko Utsumi, Kawasaki, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
A transmission system provides a stand-by line switching facility. The transmission system includes a plurality of working line side processing equipments and a stand-by line side processing equipment to replace one of the working line side processing equipments if a fault occurs therein. The transmission system has a first unit and second unit disposed for each working line side processing equipment. The first unit issues, upon receipt of a line switching command, a single line switching control signal. The second units commonly receive the single line switching control signal and respective line switching is performed between the faulty working line and the stand-by line simultaneously.