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.

Date of Patent:
Oct. 18, 2022

Filed:

Nov. 12, 2020
Applicant:

Rfmicron, Inc., Austin, TX (US);

Inventor:

Shahriar Rokhsaz, Austin, TX (US);

Assignee:

RFMicron, Inc., Austin, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/44 (2011.01); G06K 19/07 (2006.01); H03J 3/20 (2006.01); H04B 17/318 (2015.01); H04B 5/00 (2006.01);
U.S. Cl.
CPC ...
G06K 19/0726 (2013.01); H03J 3/20 (2013.01); H04B 5/0062 (2013.01); H04B 17/318 (2015.01); H03J 2200/10 (2013.01);
Abstract

A method includes transmitting, by a radio frequency identification (RFID) reader, a series of RF signals to a plurality of RF receiver circuits in a time sequence. The first RF signal commands the plurality of RF receiver circuits to remain silent when received signal strength of the first RF signal corresponds to a power level greater than a first power level. The method further includes receiving one or more sets of responses from one or more sets of RF receiver circuits of the plurality of RF receiver circuits in response to the series of RF signals. The method further includes determining an area of interest based on the one or more sets of responses, determining a set of power levels corresponding to the area of interest, and transmitting a second series of RF signals to the plurality of RF receiver circuits in a second time sequence.


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