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. 22, 2004
Filed:
Nov. 26, 2002
Applicant:
Inventors:
Shuichi Nakagawa, Kawasaki, JP;
Hiroyuki Asano, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/24 ; H04M 3/08 ; H04M 3/22 ;
U.S. Cl.
CPC ...
H04M 1/24 ; H04M 3/08 ; H04M 3/22 ;
Abstract
Line states are detected accurately to efficiently test subscriber lines, thereby improving the reliability and quality of maintenance and operation. Line monitoring means monitors line states based on at least one of loop information of lines and status information of bearer channels. Subscriber line testing means conducts subscriber line testing in accordance with the line states.