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:
Jul. 16, 2013

Filed:

Dec. 10, 2008
Applicants:

Sung-hyun Hwang, Daejeon, KR;

Jung-sun Um, Suwon, KR;

Gwangzeen Ko, Seoul, KR;

Myung-sun Song, Daejeon, KR;

Chang-joo Kim, Daejeon, KR;

Inventors:

Sung-Hyun Hwang, Daejeon, KR;

Jung-Sun Um, Suwon, KR;

Gwangzeen Ko, Seoul, KR;

Myung-Sun Song, Daejeon, KR;

Chang-Joo Kim, Daejeon, KR;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 11/00 (2006.01); H04J 3/24 (2006.01); H04W 4/00 (2009.01);
U.S. Cl.
CPC ...
Abstract

Provided are a network communication method and a network device using a preamble. According to the network communication method and the network device, network coexistence is easily achieved by using network identification transmitted in the preamble, and an unknown terminal, which has a low reception signal to noise ratio (SNR) and has not yet been connected to an existing network, is easily connected to the existing network.


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