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:
Nov. 11, 2008

Filed:

May. 03, 2006
Applicants:

Chien-ru Chen, Tainan County, TW;

Ying-lieh Chen, Tainan County, TW;

Lin-kai Bu, Hsinhua Township, Tainan County, TW;

Yu-jui Chang, Hsinhua Township, Tainan County, TW;

Inventors:

Chien-Ru Chen, Tainan County, TW;

Ying-Lieh Chen, Tainan County, TW;

Lin-Kai Bu, Hsinhua Township, Tainan County, TW;

Yu-Jui Chang, Hsinhua Township, Tainan County, TW;

Assignee:

Himax Technologies Limited, Tainan County, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 19/094 (2006.01); H03K 19/0175 (2006.01); H03L 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A voltage level shift circuit is provided. The circuit includes an input buffer unit, a level shift unit and a voltage stabilizing capacitor. The input buffer is coupled between a first voltage source and a first ground terminal. The level shift unit is coupled between a second voltage source and a second ground terminal. An input terminal of the level shift unit is coupled to an output terminal of the input buffer unit. The voltage stabilizing capacitor is coupled between the first voltage source and the second ground terminal. When a state transition occurs in the level shift unit, the voltage stabilizing capacitor maintains a voltage difference between the output terminal of the input buffer unit and the second ground terminal.


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