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:
Dec. 12, 1995
Filed:
Oct. 28, 1991
Ikuo Taniguchi, Kanagawa, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
An asynchronous transfer mode (ATM) cross-connect unit is used in an ATM communication system which includes at least two communication stations which may be coupled via a plurality of ATM cross-connect units. The ATM cross-connect unit includes an abnormality detector for outputting a detection signal when an abnormality is detected in a first input signal path, a synchronization error detector for outputting a detection signal when a synchronization error is detected in a signal received via the first input signal path, an alarm indication signal cell generator for generating an alarm indication signal cell when the detection signal is received, an alarm indication signal cell detector for outputting an alarm indication signal cell when an alarm indication signal cell is received, a remote alarm transfer cell generator for generating a remote alarm transfer cell, a path setting table in which an output signal path is set with respect to each input signal path and a remote alarm transfer path for transferring the remote alarm transfer cell to a remote communication station is set, and a control part for transferring the remote alarm transfer cell to the remote communication station via the first output signal path according to the remote alarm transfer path set in the path setting table.