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:
Jan. 03, 2017

Filed:

Jun. 20, 2012
Applicants:

Guangcai Zhou, Agoura Hills, CA (US);

Ernest C. Chen, San Pedro, CA (US);

Joseph Santoru, Agoura Hills, CA (US);

Judith M. Wang, Irvine, CA (US);

Inventors:

Guangcai Zhou, Agoura Hills, CA (US);

Ernest C. Chen, San Pedro, CA (US);

Joseph Santoru, Agoura Hills, CA (US);

Judith M. Wang, Irvine, CA (US);

Assignee:

The DirecTV Group, Inc., El Segundo, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D 1/04 (2006.01); H04L 27/00 (2006.01); H04B 7/185 (2006.01); H04L 1/20 (2006.01); H04L 25/03 (2006.01); H04N 5/21 (2006.01); H04N 7/16 (2011.01); H04N 7/167 (2011.01); H04N 21/2347 (2011.01); H04N 21/61 (2011.01); H04L 1/00 (2006.01); H04N 5/44 (2011.01); H04N 17/00 (2006.01);
U.S. Cl.
CPC ...
H04L 27/0014 (2013.01); H04B 7/1858 (2013.01); H04L 1/20 (2013.01); H04L 1/208 (2013.01); H04L 25/03866 (2013.01); H04N 5/21 (2013.01); H04N 7/163 (2013.01); H04N 7/1675 (2013.01); H04N 21/2347 (2013.01); H04N 21/6143 (2013.01); H04L 2001/0093 (2013.01); H04L 2027/0034 (2013.01); H04L 2027/0067 (2013.01); H04L 2027/0087 (2013.01); H04N 5/4401 (2013.01); H04N 17/004 (2013.01);
Abstract

Methods and apparatuses identifying a co-channel interference signal in communications systems are disclosed. An exemplary method comprises generating an interference signal by subtracting a reconstructed desired signal from an at least partially demodulated composite signal, and generating synchronization statistics of interference signal using different scrambling codes. The interference signal is identified as the signal associated with the scrambling code that was used to generate an interference signal having a desired synchronization statistic.


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