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:
Aug. 20, 2013
Filed:
Apr. 13, 2010
Applicants:
M. Jason August, Toronto, CA;
John K. Stevens, Stratham, NH (US);
Paul Waterhouse, Selkirk, CA;
Inventors:
Assignee:
Visible Assets, Inc., Mississauga, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A low frequency inductive two-way radio transceiver tag is provided that has separate antennas for transmitting and receiving signals within a reading volume. Thus, the tag of the invention includes both a transmit antenna and a receiving antenna, either separately or as a single antenna tuneable between two functional states with different impedances. The impedance of the receiving antenna is greater than the impedance of the transmitting antenna. For example, the impedance of the receiving antenna may be greater than the impedance of the transmitting antenna by a factor of 10.