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:
Nov. 06, 2018
Filed:
Sep. 30, 2015
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Navid Lashkarian, Pleasanton, CA (US);
Ehsan Adabi, Mountain View, CA (US);
Albert Chia-Wen Jerng, Woodside, CA (US);
Arya Behzad, Los Altos, CA (US);
Ali Parsa, Saratoga, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H04L 27/36 (2006.01); H03F 1/32 (2006.01); H03C 5/00 (2006.01);
U.S. Cl.
CPC ...
H04B 1/0475 (2013.01); H03C 5/00 (2013.01); H03F 1/3241 (2013.01); H04B 1/0483 (2013.01); H04L 27/36 (2013.01); H04L 27/361 (2013.01); H04L 27/368 (2013.01); H04B 2001/0425 (2013.01);
Abstract
Systems and method provided herein relate to reducing distortion of signals introduced by components on a phase path of a radio frequency system polar architecture. To reduce phase path distortion, a pre-distortion is introduced prior to a distortion caused by the components on the phase path. The pre-distortion in conjunction with the component distortion results in a transmission signal that forms its expected shape.