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:
Sep. 12, 2017
Filed:
Jan. 21, 2015
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Dan Wolberg, Moshav Yanov, IL;
Ofer Blonskey, Even Yehuda, IL;
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/34 (2006.01); H04W 52/02 (2009.01); H04L 27/36 (2006.01);
U.S. Cl.
CPC ...
H04W 52/0287 (2013.01); H04L 27/3405 (2013.01); H04L 27/361 (2013.01); H04L 27/3472 (2013.01); Y02B 60/50 (2013.01);
Abstract
Devices and methods for increasing and maximizing power efficiency in polar and Cartesian transmitters are provided. By way of example, an electronic device includes a transmitter configured to receive an in-phase/quadrature (I/Q) signal, generate an amplitude envelope signal based on the I/Q signal, decompose the amplitude envelope signal into an envelope amplitude portion and an envelope phase portion, and to dynamically switch between performing a polar modulation of the I/Q signal and performing an I/Q modulation of the I/Q signal based at least in part on an amplitude value of the envelope phase portion.