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:
Oct. 14, 2025
Filed:
Dec. 05, 2023
Applicant:
Sigmastar Technology Ltd., Fujian, CN;
Inventors:
Assignee:
SIGMASTAR TECHNOLOGY LTD., Fujian, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/66 (2006.01); H03K 17/081 (2006.01); H03K 17/687 (2006.01); H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
H04B 1/04 (2013.01); H03K 17/08104 (2013.01); H03K 17/687 (2013.01); H03M 1/66 (2013.01); H04B 2001/0408 (2013.01);
Abstract
A wired transmitter includes a digital-to-analog converter (DAC) and a line driver. The DAC generates first output signals according to a digital code, wherein a first circuit in the DAC operates in a first voltage domain and a second circuit of the DAC operates in a second voltage domain, and an upper limit of the first voltage domain is lower than an upper limit of the second voltage domain. The line driver operates in the second voltage domain, and generates second output signals according to the first output signals. Each of the DAC and the line driver is implemented by transistors corresponding to the first voltage domain.