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:
Jul. 15, 2003
Filed:
Jun. 05, 2000
Yasuhiro Ono, Kawasaki, JP;
Kiyoshi Sukegawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A collective line-termination apparatus including a power-supply-interruption-notification requesting unit in each of the interface boards for outputting a request signal requesting a power-supply interruption; a first switch in each of the interface boards for supplying or cutting off power generated by the power-supply board; a power-supply-interruption-notification-information insertion unit in each of the interface boards for inserting power-supply-interruption-notification information into a first predetermined bit position in a first frame to be transmitted to the higher level interface board. The collective line-termination apparatus includes a power-supply-interruption-confirmation-information reception unit in each of the interface boards for receiving power-supply-interruption-confirmation information inserted into a second predetermined bit position in a second frame to be transmitted by the higher level interface board; and an alarm generation unit in each of the interface boards for generating an alarm indicating the power-supply-interruption-confirmation-information reception unit not receiving the power-supply-interruption-confirmation information after a predetermined time since an issuance of the request signal requesting notification of a power-supply interruption by the power-supply-interruption-notification requesting unit.