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:
Oct. 23, 2012
Filed:
Jul. 21, 2010
Yuuki Akae, Tokyo, JP;
Atsuya Yamashita, Tokyo, JP;
Yuuki Akae, Tokyo, JP;
Atsuya Yamashita, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
When the synchronization information, transmitted from a synchronization information output unit of a clock master side device, is detected by a synchronization information detection unit, the clock slave side device associates the synchronization information with the timestamp information at the time of detection of the synchronization information. Based on the timestamp information associated with the currently received synchronization information, the timestamp information associated with at least one synchronization information up to the synchronization information received last time and transmission period information of the synchronization information, a calculation/decision unit decides whether or not a predetermined condition is met. When the condition is met, the calculation/decision unit supplies the currently received synchronization information to a clock synchronization technique function unit. The clock synchronization technique function unit performs clock correction using the synchronization information. When the condition is not met, the calculation/decision unit discards the synchronization information currently received. The clock synchronization technique function unit performs clock correction based on the previously received synchronization information (FIG.).