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. 07, 2022
Filed:
Jun. 17, 2020
Applicant:
Xilinx, Inc., San Jose, CA (US);
Inventors:
Hongzhi Zhao, Los Gatos, CA (US);
Xiaohan Chen, Sunnyvale, CA (US);
Hemang Parekh, San Jose, CA (US);
Assignee:
XILINX, INC., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H03F 1/32 (2006.01); H04L 27/36 (2006.01);
U.S. Cl.
CPC ...
H03F 1/3288 (2013.01); H03F 1/3247 (2013.01); H03F 1/3294 (2013.01); H04B 1/0475 (2013.01); H04L 27/368 (2013.01); H03F 2201/3224 (2013.01); H03F 2201/3233 (2013.01); H04B 2001/0425 (2013.01);
Abstract
Described examples provide for digital communication circuits and systems that implement digital pre-distortion (DPD). In an example, a system includes a DPD circuit configured to compensate an input signal for distortions resulting from an amplifier. The DPD circuit includes an infinite impulse response (IIR) filter configured to implement a transfer function. The IIR filter includes a selection circuit configured to selectively output a selected parameter. The transfer function is based on the selected parameter.