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:
Aug. 23, 2011

Filed:

Nov. 30, 2009
Applicant:

Ching-chung Lee, Tainan County, TW;

Inventor:

Ching-Chung Lee, Tainan County, TW;

Assignee:

Himax Technologies Limited, Sinshih Township, Tainan County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/66 (2006.01);
U.S. Cl.
CPC ...
Abstract

A digital to analog converter with two outputs controlled by an input signal with n-bits is disclosed. A reference voltage circuit generates (2+1) reference voltages numbered from 1 to (2+1). A switch array coupled to the reference voltage circuit, a first output terminal, and a second output terminal, includes a plurality of switches switching according to the input signal. The first output terminal outputs only one of odd reference voltages according to the input signal, and the second output terminal outputs one of even reference voltages according to the input signal, and the number of the switches is less than (n×22).


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