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.

Date of Patent:
Nov. 08, 2016

Filed:

Nov. 19, 2013
Applicant:

Electronics and Telecommunications Research Institute, Daejeon-si, KR;

Inventors:

Bup-Joong Kim, Daejeon-si, KR;

Tae-Sik Cheung, Daejeon-si, KR;

Bheom-Soon Joo, Daejeon-si, KR;

Jong-Hyun Lee, Daejeon-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/12 (2006.01); H04J 3/06 (2006.01); H04N 21/43 (2011.01);
U.S. Cl.
CPC ...
H04J 3/0697 (2013.01); H04J 3/0667 (2013.01); H04N 21/4302 (2013.01);
Abstract

A processor time synchronization apparatus and method in a data communication system which includes a plurality of processors and line interfaces. The processor time synchronization apparatus includes a first local processor configured to recognize a time difference between an external device and the system based on a time message exchanged with the external device, and synchronize time between the external device and the system, and a second local processor configured to receive time information from the first local processor that has been time-synchronized with the external device, the time information containing the time difference between the external device and the system, and synchronize the first local processor with a system's internal time using the received time information.


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