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:
May. 03, 2011

Filed:

Jun. 08, 2007
Applicants:

Tien-ju Tsai, Tainan, TW;

Shu-ming Liu, Tainan, TW;

Inventors:

Tien-Ju Tsai, Tainan, TW;

Shu-Ming Liu, Tainan, TW;

Assignee:

Himax Technologies Limited, Tainan County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for receiving a station signal is provided. First, a radio frequency signal is received and converted to a first IF signal. Next, the first IF signal is demodulated to a baseband signal and a demodulation signal is obtained, the demodulation signal being a result of differentiating a phase of the baseband signal. Then a determination as to whether a DC level of the demodulation signal has an S-curve characteristic at a specific frequency is made according to the demodulation signal. If so, the specific frequency is determined as a first station frequency, a first station signal is obtained from the radio frequency signal according to the first station frequency.


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