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:
Jun. 28, 2016

Filed:

Jun. 04, 2009
Applicants:

Chih-wei Kang, Taipei, TW;

Lu-chung Chien, Taipei, TW;

Ray-kuo Lin, Taipei County, TW;

Inventors:

Chih-Wei Kang, Taipei, TW;

Lu-Chung Chien, Taipei, TW;

Ray-Kuo Lin, Taipei County, TW;

Assignee:

MEDIATEK INC., Science-Based Industrial Park, Hsin-Chu, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/50 (2006.01); H04N 5/46 (2006.01); H04N 21/434 (2011.01); H04N 21/426 (2011.01);
U.S. Cl.
CPC ...
H04N 5/50 (2013.01); H04N 5/46 (2013.01); H04N 21/4263 (2013.01); H04N 21/4345 (2013.01);
Abstract

A method for performing channel scan within a multi-channel broadcasting program receiver includes: calculating a plurality of frequency representatives of intermediate frequency (IF) signals of one or more received multi-channel broadcasting program signals within a specific band of a plurality of bands; and locating a video IF signal out of the IF signals according to the frequency representatives in order to determine a frequency of a video carrier corresponding to the specific band, wherein the frequency of the video carrier is utilized as a reference for tuning to an associated channel. An associated multi-channel broadcasting program receiver includes a tuner, a processing module, a memory and a controller. The tuner is arranged to select one of a plurality of channels. In particular, the controller controls channel scan and further utilizes the frequency of the video carrier corresponding to the specific band as the reference for tuning to the associated channel.


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