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:
Feb. 08, 2022
Filed:
Jul. 30, 2020
Applicant:
Dali Systems Co. Ltd., George Town, KY;
Inventors:
Wan-Jong Kim, Port Moody, CA;
Shawn Patrick Stapleton, Vancouver, CA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/32 (2006.01); H04B 1/04 (2006.01); H04L 27/36 (2006.01); H04B 1/00 (2006.01);
U.S. Cl.
CPC ...
H04B 1/0475 (2013.01); H03F 1/3241 (2013.01); H03F 1/3247 (2013.01); H04B 1/0017 (2013.01); H04L 27/368 (2013.01); H04B 2001/0425 (2013.01);
Abstract
A method of operating a communications system includes receiving a signal at a digital predistorter (DPD), introducing predistortion to the signal using the DPD, and converting the predistorted signal to an analog signal using a digital-to-analog converter having a first bandwidth. The method also includes amplifying the analog signal, sampling the amplified signal using an analog-to-digital converter having a second bandwidth less than the first bandwidth, and extracting coefficients of the DPD from the sampled signal.