Trouble diagnosis system of UPC circuit

Details Trouble diagnosis system of UPC circuit Trouble diagnosis system of UPC circuit

1993-01-08

1995-11-07

Beausoliel, Jr., Robert W.

39518401, G06F 1100

Patent

active

054653487

ABSTRACT:
A UPC circuit fault diagnosis system for diagnosing a failure in a UPC circuit controls cell traffic volume on the basis of prescribed information about cell traffic. Failure diagnosis of a UPC circuit is provided by a usage parameter determination of at least one kind of cell, using more than one system and comparing determination results. The diagnosis system has an operating UPC circuit for controlling a total of m kinds of cells, and a standby UPC circuit for controlling a total of n kinds of cells. The system also has a total of q bridge memories for keeping a chronological record of the prescribed information of arriving cells. A fault diagnosis of the bridge memories is provided by comparing the contents of the bridge memories, using more than one system.

REFERENCES:
patent: 5130984 (1992-07-01), Cisneros
patent: 5157654 (1992-10-01), Cisneros
patent: 5285442 (1994-02-01), Iwamura et al.
patent: 5299209 (1994-03-01), Murayama et al.
patent: 5325358 (1994-06-01), Goeldner

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