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:
Jul. 08, 2025

Filed:

Nov. 07, 2023
Applicant:

Wisconsin Alumni Research Foundation, Madison, WI (US);

Inventors:

Bhuvana Krishnaswamy, Madison, WI (US);

Yaman Sangar, Madison, WI (US);

Kai Pederson, Palatine, IL (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 19/077 (2006.01); G06K 19/07 (2006.01);
U.S. Cl.
CPC ...
G06K 19/07773 (2013.01); G06K 19/0709 (2013.01);
Abstract

A long-range radio tag uses radio energy harvesting and separates the functions of radiofrequency excitation and radio tag reading such that the reader may be displaced at a substantial distance from the radio tags. The ability of the radio tags to communicate with a distant reader is further enhanced by a query system which allows a highly simplified message to be transmitted by the radio tags, as flexibly defined by a received query. The use of addressing and frequency multiplexing system allows a large number of tags to be serviced by a single reader.


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