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:
Mar. 19, 2013

Filed:

Jun. 30, 2010
Applicants:

Young-goo Yang, Hwaseong, KR;

Min-su Kim, Bucheon, KR;

Sung-chan Jung, Suwon, KR;

Inventors:

Young-goo Yang, Hwaseong, KR;

Min-su Kim, Bucheon, KR;

Sung-chan Jung, Suwon, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 5/12 (2006.01); H04B 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus for removing a leakage signal includes a coupler including a transmission port through which a transmission signal is input, an antenna port through which the transmission signal is output to an antenna and a receiving signal is input from the antenna, and a receiving port through which the receiving signal is output; and a removing unit which outputs, to the receiving port, a leakage removing signal having a same magnitude as one of or a sum of a magnitude of a first leakage signal of the transmission signal, which is generated at the transmission port and input to the receiving port, and a magnitude of a second leakage signal of the transmission signal which is input to the receiving port through the antenna port, the leakage removing signal having an opposite phase to one of the phases or an aggregate phase of the first and second leakage signals.


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