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:
Oct. 06, 2015

Filed:

May. 04, 2012
Applicants:

Jong Bu Lim, Yongin-si, KR;

Ui Kun Kwon, Hwaseong-si, KR;

Sang Joon Kim, Seoul, KR;

Inventors:

Jong Bu Lim, Yongin-si, KR;

Ui Kun Kwon, Hwaseong-si, KR;

Sang Joon Kim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); G06K 19/07 (2006.01); H04B 5/00 (2006.01); H04B 5/02 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0492 (2013.01); G06K 19/0723 (2013.01); H04B 5/0031 (2013.01); H04B 5/02 (2013.01);
Abstract

A communication security method and apparatus of a first node and a second node are provided. The first node and the second node communicate with each other based on a full duplex communication scheme using a near field. In the communication security method and apparatus, information to be transmitted may be encrypted based on received information and the encrypted information may be transmitted, in a TX node and an RX node. The communication security method and apparatus prevent an additional node from decrypting the information, and ensure transmission and reception of reliable data. In addition, the communication security method and apparatus prevent information from being decrypted in a physical layer, by periodically or aperiodically exchanging a new encryption key.


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