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:
Jan. 23, 2018
Filed:
Oct. 17, 2016
Nec Corporation, Tokyo, JP;
Takatoshi Ogawa, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A communication apparatus () according to the present invention is provided with: a storage unit () that stored in advance difference information (), which is the difference between first time information (t) and second time information (t), said first time information (t) being received from a synchronization source communication apparatus () as a time synchronization source connected to a transmission system () wherein transmission delay time is different depending on the direction of transmission, and said second time information (t) obtained from a time synchronization origin () other than the transmission system (); and a time synchronization means () that carries out, when the second time information (t) cannot be obtained from the time synchronization origin (), time synchronization with the synchronization source communication apparatus () using the difference information () read out from the storage unit ().