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.

Date of Patent:
Oct. 17, 1995

Filed:

Jul. 27, 1994
Applicant:
Inventors:

Mitsuyo Asano, Kawasaki, JP;

Masatoshi Kumagai, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ; H04M / ; H04M / ; H04J / ;
U.S. Cl.
CPC ...
379-5 ; 379 16 ; 379 32 ; 379 34 ; 370 13 ; 370 15 ;
Abstract

An external monitoring system operating for a communication system comprising a common channel signaling unit for separating a message communication function from a communication function and for transmitting a data communication signal through an exclusive line, a signal processing unit for processing the communication using the common channel signaling unit, and an alarm processing unit for generating an alarm signal when an abnormal condition has arisen in the communication associated with the common channel signal processing unit, the alarm processing unit includes an external communication monitoring unit for monitoring an abnormal condition in communication control by the signal processing unit.


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