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.

Patent No.:

US 8085174 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 27, 2011

Filed:

Jun. 02, 2010
Applicants:

Tsung-heng Tsai, Chiayi, TW;

Jen-hung Chi, Taichung County, TW;

Inventors:

Tsung-Heng Tsai, Chiayi, TW;

Jen-Hung Chi, Taichung County, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A current-mode DAC includes at least one to-be-corrected one current source, a referential current source, a current comparator for comparing the current of the to-be-corrected current source and the current of the referential current source, a correction controller, a successive approximation register controller controlled by the correction controller and referring to the result of the comparison for carrying out successive approximation, and at least one correction DAC electrically connected with the successive approximation register controller and the to-be-corrected current source for referring to the result acquired from the successive approximation register controller and then providing a bias for the to-be-corrected current source for carrying out current correction. Accordingly, the corrected current can have the excellent accuracy.


Find Patent Forward Citations

Tsai, Tsung-Heng. (2011). Current-mode dac capable of prospective correction (U.S. Patent No. 8085174). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8085174

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