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:
Mar. 15, 2016
Filed:
Feb. 03, 2015
Applicant:
Mediatek Inc., Hsin-Chu, TW;
Inventors:
Sheng-Hong Yan, Tainan, TW;
Hao-Ping Hong, Hsinchu County, TW;
Assignee:
MediaTek, Inc., , TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/32 (2006.01); H04B 1/04 (2006.01); H04L 27/34 (2006.01); H03F 3/24 (2006.01);
U.S. Cl.
CPC ...
H04L 27/3411 (2013.01); H03F 3/24 (2013.01); H04B 1/0475 (2013.01); H03F 2200/105 (2013.01); H03F 2200/465 (2013.01); H03F 2200/504 (2013.01); H04B 2001/0408 (2013.01);
Abstract
A communication unit has an envelope tracking system operably coupled to a power amplifier, PA, module. The envelope tracking system has at least one slew rate module arranged to re-distribute a slew rate across a number of input samples according to a maximum slew rate of the number of input samples; and a supply modulator arranged to variably control a supply voltage for the PA module in response to an output of the at least one slew rate module.