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:
Dec. 01, 2015

Filed:

Aug. 22, 2013
Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventor:

Wen-Hua Chang, Tainan, TW;

Assignee:

MEDIATEK INC., Science-Based Industrial Park, Hsin-Chu, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03B 1/00 (2006.01); H03M 1/66 (2006.01); H03F 1/02 (2006.01); H03F 1/32 (2006.01); H03F 3/30 (2006.01);
U.S. Cl.
CPC ...
H03M 1/66 (2013.01); H03F 1/0272 (2013.01); H03F 1/3205 (2013.01); H03F 1/3217 (2013.01); H03F 3/303 (2013.01); H03F 2200/129 (2013.01); H03F 2200/91 (2013.01); H03F 2203/30031 (2013.01); H03F 2203/30078 (2013.01); H03F 2203/30111 (2013.01);
Abstract

A signal generation apparatus includes a digital-to-analog converter, a bias stage and a class AB output stage. The digital-to-analog converter is arranged for outputting a current as an input signal. The bias stage is coupled to the digital-to-analog converter, and is arranged for generating a bias signal according to at least the input signal. The class AB output stage is coupled to the bias stage, and is arranged for generating an output signal at an output node of the signal generation apparatus according to the bias signal, wherein the output signal includes a first signal component and a second signal component, both the first signal component and the second signal component correspond to the input signal, and there is a linear relation between the output signal and the input signal.


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