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:
Aug. 18, 2015
Filed:
Jan. 15, 2014
Applicant:
Broadcom Corporation, Irvine, CA (US);
Inventor:
Markus Rudiger Nentwig, Helsinki, FI;
Assignee:
BROADCOM CORPORATION, Irvine, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 17/00 (2006.01); H03F 1/32 (2006.01);
U.S. Cl.
CPC ...
H04B 17/001 (2013.01); H03F 1/3241 (2013.01);
Abstract
Embodiments provide methods, apparatus and computer software for use in calibrating a transmitter in operative association with a variable supply voltage. A phase distortion of the power amplifier is determined for a given instantaneous power. On the basis of the determined phase distortion for the power amplifier at the given instantaneous power, the transmitter is calibrated. Examples of transmitters in respect of which embodiments may be practiced include envelope tracking transmitters, envelope elimination and restoration transmitters, and polar transmitters.