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:
Dec. 04, 2012
Filed:
Jan. 23, 2009
Applicant:
Paul Butler, Cirencester, GB;
Inventor:
Paul Butler, Cirencester, GB;
Assignee:
Innovision Research & Technology PLC, Cirencester, GB;
Primary Examiner:
Int. Cl.
CPC ...
H04B 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A near field RF communicator has an antenna circuit (coupled to an active switched rectifier () to rectify a received RF magnetic field signal. The active switched rectifier also has a passive mode of operation. A switching mechanism in the forward conducting arms of the rectifier is controlled by a comparator (). A switching mechanism to control ground clamping of each respective input from the antenna circuit is provided by a coupling to the other respective input from the antenna circuit.