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:
Feb. 25, 2025

Filed:

Nov. 11, 2022
Applicant:

Asahi Kasei Microdevices Corporation, Tokyo, JP;

Inventors:

Daisuke Matsuoka, Tokyo, JP;

Tatsuya Chubachi, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/00 (2006.01); G06F 5/01 (2006.01); H03M 1/66 (2006.01); H03M 3/00 (2006.01); H03M 7/16 (2006.01);
U.S. Cl.
CPC ...
H03M 7/165 (2013.01); G06F 5/01 (2013.01); H03M 1/66 (2013.01); H03M 3/50 (2013.01);
Abstract

A DWA circuit includes: a thermometer conversion unit configured to convert an input digital signal into a thermometer code; a shift amount storage unit configured to store a shift amount; a shift unit configured to cyclically shift the thermometer code; an arrangement conversion unit configured to supply, to an analog output circuit, an output control code obtained by converting a bit arrangement of a shifted code; and an update unit configured to update the shift amount, in which the shifted code includes a plurality of unconverted bit fields, the output control code includes a plurality of converted bit fields, and the arrangement conversion unit is configured to perform arrangement conversions on a plurality of bits having a same position in a bit field in the plurality of unconverted bit fields, to arrange the plurality of bits in a same converted bit field among the plurality of converted bit fields.


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