Method of detecting and processing abnormal message output from computer system and detecting and processing apparatus therefor

Patent 5291590 Issued on March 1, 1994. Estimated Expiration Date:

July 10, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Diagnostic display for machine sequence controller
Patent #: 3939453
Issued on: 02/17/1976
Inventor: Schroeder

Automatic test systems
Patent #: 4434489
Issued on: 02/28/1984
Inventor: Blyth

Method and apparatus for enabling the tracing of errors occuring in a series of transfers of binary message words
Patent #: 4481582
Issued on: 11/06/1984
Inventor: Edsbacker

Programmable controller
Patent #: 4592053
Issued on: 05/27/1986
Inventor: Matsuura

Method for displaying program executing circumstances and an apparatus using the same Patent #: 4872167
Issued on: 10/03/1989
Inventor: Maezawa, et al.

Inventors

Assignee

Fujitsu Limited

Application

No. 727739 filed on 07/10/1991

US Classes:

714/49State error (i.e., content of instruction, data, or message)

Examiners

Primary: Beausoliel, Robert W. Jr.
Assistant: Wright, Norman M.

Attorney, Agent or Firm

Nikaido, Marmelstein, Murray & Oram

Foreign Patent References

0132069 EP. 01/13/1985
0336585 EP. 10/13/1989
0416171 EP. 03/13/1991

International Class

G06F 011/00

Foreign Application Priority Data

1990-07-13 JP

Abstract

An abnormal message detecting and processing apparatus comprises an example message storing part (30) for storing examples of normal messages, a variable field information storing part (32) for storing information of a location of variable fields in the example messages, and an abnormal message detecting part (34). The abnormal message detecting part (34) compares input messages (36) with the example messages, except for variable fields specified by the information stored in the variable field information storing part (32), determines that an input message is abnormal if none of the example messages coincide with the input message in the comparison, and outputs the message so that the abnormal message is easily distinguishable from normal messages.