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.:
Date of Patent:
May. 16, 2023
Filed:
Nov. 08, 2021
Applicant:
Yuan-ju Chao, Cupertino, CA (US);
Inventor:
Yuan-Ju Chao, Cupertino, CA (US);
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/06 (2006.01); H03M 1/74 (2006.01); H03M 1/10 (2006.01); H03M 1/00 (2006.01); H03M 1/76 (2006.01);
U.S. Cl.
CPC ...
H03M 1/0604 (2013.01); H03M 1/002 (2013.01); H03M 1/10 (2013.01); H03M 1/745 (2013.01); H03M 1/765 (2013.01);
Abstract
A method of expanding current steering Digital-to-Analog Converter (DAC) output amplitude and enhancing linearity performance. Level shifters with regulated supply and ground voltage are inserted before current source latches. Extra devices and small current are placed between switches and resistor load to enhance the linearity of current steering DAC.