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:
Oct. 24, 2023
Filed:
May. 07, 2020
Applicant:
Impinj, Inc., Seattle, WA (US);
Inventors:
Joshua F. Ensworth, Bothell, WA (US);
Alberto Pesavento, Seattle, WA (US);
Harley K. Heinrich, Snohomish, WA (US);
Theron Stanford, Seattle, WA (US);
Thomas G. Anderl, Seattle, WA (US);
Assignee:
Impinj, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 19/07 (2006.01); G06K 7/00 (2006.01); G06K 7/10 (2006.01);
U.S. Cl.
CPC ...
G06K 19/0723 (2013.01); G06K 7/0008 (2013.01); G06K 7/10297 (2013.01);
Abstract
RFID tag ICs in a population can adjust the impedance values used to backscatter-modulate reply signals to increase the distribution or spread of backscattered signal parameters, thereby facilitating the recovery of collided tag replies. An RFID tag IC may adjust its impedance value(s) based on a reader command or independently.