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. 22, 2002
Filed:
Jun. 27, 2000
James L. Rodgers, Mesa, AZ (US);
John J. Coulthard, Scottsdale, AZ (US);
Billy C. Fowler, Phoenix, AZ (US);
Howard K. Jaecks, Mesa, AZ (US);
Roc A. Lastinger, Mesa, AZ (US);
Paul A. Picard, Mesa, AZ (US);
Mohammad A. Rehman, Chandler, AZ (US);
RF Code, Inc., Mesa, AZ (US);
Abstract
A carrier, as used for example to transport several radio frequency identification devices, includes a circuit having an antenna and a series capacitor for tuning the antenna. Enhanced transceiver communication results when transceivers are placed in the carrier. Alternately, a carrier may include first and second antenna circuits, each having a capacitor for tuning the respective antenna. The two circuits may cooperate so that energy received in a first pattern is re-radiated in a second pattern for further enhanced transceiver communication, such as detection of the presence of the RFID device within the carrier.