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:
Mar. 30, 2010
Filed:
Mar. 27, 2006
Geoff Lyon, Menlo Park, CA (US);
Alan Mcreynolds, Los Altos, CA (US);
Ian Robinson, Pebble Beach, CA (US);
Cyril Brignone, Mountain View, CA (US);
Geoff Lyon, Menlo Park, CA (US);
Alan McReynolds, Los Altos, CA (US);
Ian Robinson, Pebble Beach, CA (US);
Cyril Brignone, Mountain View, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A reader device for locating and tracking multiple tags includes a plurality of closely packed antenna circuits and at least one controller configured to control the plurality of closely packed antenna circuits. The at least one controller is configured to activate one or more of the antenna circuits to generate at least one resonance signal field configured to interrogate at least one tag associated with the one or more active antenna circuits while substantially preventing or reducing cross-coupling of signals between the one or more active antenna circuits and at least one antenna circuit within the at least one resonance signal field to a sufficiently low level, wherein the sufficiently low level substantially prevents misreads from unwanted tags, to thereby track the multiple tags in a substantially controlled manner.