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. 20, 2001
Filed:
Aug. 16, 1999
Akihiko Oka, Kawasaki, JP;
Keiichiro Tsukamoto, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A transmission apparatus includes a shelf which includes a working card slot and a protection card slot, the working card slot supplying a first slot ID to a first card inserted in the working card slot, and the protection card slot supplying a second slot ID to a second card inserted in the protection card slot. A control logic circuit, provided within each of the first and second cards, receives one of the first slot ID or the second slot ID, a redundancy/non-redundancy R/N signal and a working/protection W/P signal, and outputs a control signal depending on the related slot ID, the R/N signal and the W/P signal. A line connection relay, provided within each of the first and second cards, connects either a working line or a protection line to an output of the related card in accordance with the control signal supplied by the control logic circuit.