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:
Jun. 03, 1997
Filed:
May. 19, 1995
Shigeo Amemiya, Kawasaki, JP;
Yuichi Matsuda, Kawasaki, JP;
Takao Ogura, Kawasaki, JP;
Yasuki Fujii, Kawasaki, JP;
Koji Tezuka, Kawasaki, JP;
Hiromi Ueda, Yokohama, JP;
Hitoshi Uematsu, Yokosuka, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
An alarm masking system is provided which is capable of implementing alarm priority processing or alarm inhibit processing in ATM transmission equipment. In ATM transmission equipment, a received virtual path or virtual channel is switched by means of a switching unit and then sent to an interface unit. In doing this, if a higher priority alarm is detected or received at a reception side interface unit, an intra-office tag is added to the alarm cell and then it is output, so that by detecting this intra-office tag it is possible to inhibit generation of lower priority alarms in response to the higher order alarm.