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:
Jul. 11, 2017
Filed:
Sep. 14, 2015
Applicant:
Freescale Semiconductor, Inc., Austin, TX (US);
Inventors:
Yushi Tian, San Diego, CA (US);
Wayne (Siwei) Tang, San Diego, CA (US);
Handiono Santosa, San Diego, CA (US);
Assignee:
NXP USA, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 5/00 (2006.01); H04W 52/02 (2009.01); H04B 1/40 (2015.01);
U.S. Cl.
CPC ...
H04W 52/029 (2013.01); H04B 1/40 (2013.01); H04B 5/00 (2013.01); H04B 5/0025 (2013.01); H04W 52/0274 (2013.01); Y02B 60/50 (2013.01);
Abstract
A method for a near field communication circuit includes entering a low power mode and subsequently determining to exit the low power mode. The method further includes generating an open loop clock signal and providing the open loop clock signal to circuits of the near field communication circuit during a low power mode exit duration. Subsequently a reference clock signal is received from a host and used to clock the near field communication circuit.