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:
Apr. 12, 2011

Filed:

Dec. 23, 2009
Applicants:

Zhiyuan Cui, Chungcheongbuk-do, KR;

Injae Chung, Gyeonggi-do, KR;

Namsoo Kim, Chungcheonbuk-do, KR;

Inventors:

Zhiyuan Cui, Chungcheongbuk-do, KR;

Injae Chung, Gyeonggi-do, KR;

Namsoo Kim, Chungcheonbuk-do, KR;

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

A digital-to-analog converter is disclosed. The digital-to-analog converter includes a decoder that receives a plurality of digital input signals to output a plurality of thermometer decode signals, a current supply part including a plurality of current sources, each of which operates in one of a sleeping mode and an operating mode under the control of the thermometer decode signals, and a switching part including a plurality of switching units, each of which operates in one of a sleeping mode and an operating mode under the control of the thermometer decode signals. The current supply part selectively outputs a plurality of switching power signals. The switching part outputs an analog signal under the control of the thermometer decode signals.


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