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:
Jun. 16, 2020
Filed:
May. 20, 2019
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Shahin Mehdizad Taleie, San Diego, CA (US);
Nitz Saputra, Burlingame, CA (US);
Chen Jiang, Davis, CA (US);
Behnam Sedighi, La Jolla, CA (US);
Ibrahim Ramez Chamas, Carlsbad, CA (US);
Bhushan Shanti Asuri, San Diego, CA (US);
Dongwon Seo, San Diego, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H03M 3/00 (2006.01); H03M 1/66 (2006.01); H04L 25/49 (2006.01); H03F 3/24 (2006.01);
U.S. Cl.
CPC ...
H04B 1/0475 (2013.01); H03F 3/24 (2013.01); H03M 1/661 (2013.01); H03M 1/665 (2013.01); H03M 3/504 (2013.01); H04L 25/4921 (2013.01); H04B 2001/0416 (2013.01);
Abstract
An RF-DAC transmitter is provided that includes an in-phase channel, a quadrature-phase channel, a first intermediate-phase channel, and a second intermediate-phase channel. Each channel includes a pair of interleaved RF-DACs for producing a pair of interleaved RF signals and a subtractor.