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.:

US 8669974 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 11, 2014

Filed:

Jun. 13, 2007
Applicants:

Yu-chu Yang, Tainan County, TW;

Fa-ming Chen, Tainan County, TW;

Po-hsien Tsai, Tainan County, TW;

Mao-hsiung Kuo, Tainan County, TW;

Inventors:

Yu-Chu Yang, Tainan County, TW;

Fa-Ming Chen, Tainan County, TW;

Po-Hsien Tsai, Tainan County, TW;

Mao-Hsiung Kuo, Tainan County, TW;

Assignee:

Himax Technologies Limited, Tainan County, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

A timing controller adapted to a flat display includes a voltage detecting circuit, a clock generator, a first multiplexer and a second multiplexer. The voltage detecting circuit detects a variation of an operating voltage and thus outputs a reset signal. The clock generator outputs a start signal and a first clock signal. The first multiplexer is controlled by the reset signal and coupled to the start signal and a constant voltage. The second multiplexer is controlled by the reset signal and coupled to the first clock signal and a second clock signal. A frequency of the second clock signal is obviously higher than a frequency of the first clock signal.


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