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.
Patent No.:
Date of Patent:
Jan. 06, 2015
Filed:
May. 23, 2013
Applicant:
Mstar Semiconductor, Inc., Hsinchu Hsien, TW;
Inventors:
Kai-Wen Cheng, Zhubei, TW;
Yi-Ying Liao, Taipei, TW;
Tung-Sheng Lin, Taoyuan, TW;
Tai-Lai Tung, Zhubei, TW;
Assignee:
MStar Semiconductor, Inc., Hsinchu Hsien, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/173 (2011.01); H04N 21/61 (2011.01); H04N 7/20 (2006.01); H04L 27/00 (2006.01);
U.S. Cl.
CPC ...
H04N 21/6143 (2013.01); H04N 7/20 (2013.01); H04L 27/00 (2013.01); H04L 27/006 (2013.01);
Abstract
An apparatus for detecting spectrum inversion includes a different correlator and a determining module. The differential correlator performs an odd-order differential correlation on an input signal and a known signal to generate a differential correlation result. When the input signal is determined as corresponding to a target signal of the known signal, the determining module detects spectrum inversion in the input signal according to the phase of the differential correlation result.