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:
Jun. 29, 2021

Filed:

Nov. 14, 2018
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventor:

Junji Nakatsuka, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/78 (2006.01); H03M 1/76 (2006.01); H03M 1/68 (2006.01);
U.S. Cl.
CPC ...
H03M 1/76 (2013.01); H03M 1/68 (2013.01);
Abstract

A digital-to-analog converter includes: a first partial circuit with a first bank of resistors and a first group of switches; a second partial circuit; a first resistor; a third partial circuit with a third bank of resistors and a third group of switches; and a fourth partial circuit with a fourth bank of resistors and a fourth group of switches Supposing that the first resistor has a resistance value R, the fourth bank of resistors has a combined resistance value of 2R, the first bank of resistors has a combined resistance value of (2−1)R, the third bank of resistors has a combined resistance value of (2−1)R, and the second partial circuit has a combined resistance value of R/(2−1).


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