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:
Jan. 12, 2016
Filed:
Nov. 23, 2012
Applicant:
Fairchild Semiconductor Corporation, San Jose, CA (US);
Inventors:
Assignee:
Fairchild Semiconductor Corporation, San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/00 (2006.01); H04B 5/00 (2006.01);
U.S. Cl.
CPC ...
H04B 5/0037 (2013.01);
Abstract
Generally, this disclosure provides systems, methods and platforms for power multiplexer switching operations. The system may include a near field communication (NFC) module configured to receive power through a radio frequency (RF) channel; a subscriber identity module (SIM) circuit configured with a supply voltage port; and a power multiplexer circuit configured to controllably couple the SIM circuit supply voltage port to the NFC module, wherein the NFC module provides a supply voltage to the SIM circuit such that the SIM circuit is operable in the absence of primary device power source.