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:
Jan. 26, 2016

Filed:

Aug. 13, 2014
Applicant:

Asahi Kasei Microdevices Corporation, Tokyo, JP;

Inventors:

Ryuzo Yamamoto, Tokyo, JP;

Junya Nakanishi, Tokyo, JP;

Seiko Nakamoto, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/06 (2006.01); H03M 1/12 (2006.01); H03M 1/66 (2006.01); H03M 1/08 (2006.01); H03F 1/32 (2006.01); H03M 1/00 (2006.01); H03M 1/74 (2006.01); H04B 1/715 (2011.01); H04L 27/26 (2006.01);
U.S. Cl.
CPC ...
H03M 1/0614 (2013.01); H03M 1/08 (2013.01); H03M 1/0863 (2013.01); H03M 1/12 (2013.01); H03M 1/66 (2013.01); H03F 1/3247 (2013.01); H03M 1/00 (2013.01); H03M 1/747 (2013.01); H04B 2001/7154 (2013.01); H04L 27/2647 (2013.01);
Abstract

The present invention relates to a control method of a D/A converter, a D/A converter, a control method of an A/D converter, and an A/D converter that can suppress an existing n-th harmonic without using a large-scale circuit, such as a bootstrap. A D/A converter () of the present invention is a D/A converter () that can suppress the generation of an existing n-th harmonic (n is an integer of 2 or more) of an analog output signal. The D/A converter () includes a D/A conversion unit () that converts an input digital signal into an analog signal and a control unit () that arbitrarily controls the timing of the sampling phase and the integral phase of the D/A conversion unit (). The D/A conversion unit () is configured to generate an arbitrary n-th harmonic and superimpose the arbitrary n-th harmonic on an analog output signal including the existing n-th harmonic.


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