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:
Oct. 18, 2016
Filed:
Jan. 23, 2015
Applicant:
Broadcom Europe Limited, Cambridge, GB;
Inventor:
Alastair Lefley, Kemble, GB;
Assignee:
Broadcom Corporation, Irvine, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 5/00 (2006.01); G06K 7/00 (2006.01); G06K 7/10 (2006.01); G11C 5/14 (2006.01); H04B 5/02 (2006.01); H04B 1/401 (2015.01);
U.S. Cl.
CPC ...
H04B 5/0031 (2013.01); G06K 7/0008 (2013.01); G06K 7/10237 (2013.01); G11C 5/142 (2013.01); H04B 1/401 (2013.01); H04B 5/02 (2013.01); H04B 5/0081 (2013.01);
Abstract
A communication device is disclosed that includes an antenna circuit with coupling connections that are used interchangeably as a receive coupling connection and a transmit coupling connection for an RF signal. A driver maintains a constant voltage or a constant current on a first coupling connection of the antenna circuit based on a drive signal that includes an output voltage and an output current. A demodulator extracts modulation from the RF signal based on a fluctuating voltage or a fluctuating current on a second coupling connection of the antenna circuit.