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:
Apr. 16, 2002
Filed:
Mar. 16, 1999
Applicant:
Inventors:
Kazuo Hashimoto, Fujimi, JP;
Kazunori Matsumoto, Ohmiya, JP;
Assignee:
KDD Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/130 ;
U.S. Cl.
CPC ...
G06F 1/130 ;
Abstract
An alarm propagation model of a transmission line is expressed by an equation. A fault portion on the transmission line is estimated by using the alarm propagation model. As a result, it is possible to estimate the fault portion by minimum observation time without lack of precision.