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. 09, 1996
Filed:
Mar. 17, 1994
Eiji Sugawara, Kawasaki, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
A real time clock synchronizing system, provided in each of a plurality of network elements in a synchronous transmission network, comprises: a generating unit for generating, based on a reference clock, self-generated real time information indicating a real time of the network element. The system also includes an extracting unit for extracting reference real time information contained in an overhead area of synchronous signals received by the network element. A selector unit selects as a reference real time information to be transmitted from the network element, one of the self-generated real time information and the reference real time information extracted by the extracting unit. A transmitting unit contains the reference real time information selected by the selector unit, in an overhead area of synchronous signals to be transmitted from the network element.