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. 10, 1992
Filed:
Oct. 16, 1990
Junichi Moriyama, Kawasaki, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
A line terminal equipment provided in a drop-insert station of a transmission system for receiving a signal from a preceding station of the drop-insert station through a preceding protection line is electrically connected in a protection switching equipment provided in the drop-insert station, to a line terminal equipment provided in the drop-insert station for transmitting the signal to a succeeding station of the drop-insert station, by a connecting line provided in the protection switching equipment, in any one of cases where no disconnection trouble occurs on preceding and succeeding work lines, where disconnection troubles occur on one of the preceding work lines and a succeeding work line associated with the preceding work line and where a disconnection trouble occurs on one of the preceding work lines. The connecting line is disconnected in a case where a disconnection trouble occurs on one of the succeeding work line.