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:
May. 19, 2015

Filed:

Sep. 14, 2012
Applicants:

Sung Cheol Chang, Daejeon, KR;

MI Young Yun, Daejeon, KR;

Seokki Kim, Daejeon, KR;

Won-ik Kim, Daejeon, KR;

Sung Kyung Kim, Daejeon, KR;

Eunkyung Kim, Daejeon, KR;

Chul Sik Yoon, Daejeon, KR;

Kwang Jae Lim, Daejeon, KR;

Inventors:

Sung Cheol Chang, Daejeon, KR;

Mi Young Yun, Daejeon, KR;

Seokki Kim, Daejeon, KR;

Won-Ik Kim, Daejeon, KR;

Sung Kyung Kim, Daejeon, KR;

Eunkyung Kim, Daejeon, KR;

Chul Sik Yoon, Daejeon, KR;

Kwang Jae Lim, Daejeon, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 56/00 (2009.01); H04J 3/06 (2006.01);
U.S. Cl.
CPC ...
H04W 56/001 (2013.01); H04J 3/0638 (2013.01);
Abstract

A direct communication method between terminals is provided. When a terminal receives a plurality of synchronization information parts, the terminal selects synchronization information to acquire a reference time among the plurality of synchronization information parts according to a priority. Here, the priority is an order of first synchronization information that is received from a base station, second synchronization information that is received from a global positioning system (GPS), and third synchronization information that is received from a terminal in which a hop count from the base station or the GPS is small.


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