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:
Aug. 31, 2021
Filed:
May. 11, 2020
Impinj, Inc., Seattle, WA (US);
Alberto Pesavento, Seattle, WA (US);
Adrian Wojnowski, Costa Mesa, CA (US);
Joshua F. Ensworth, Bothell, WA (US);
Impinj, Inc., Seattle, WA (US);
Abstract
Portals and other chokepoints can be monitored with RFID reader systems. A portion of an RFID reader system capable of generating multiple beams can be mounted between two adjacent chokepoints such that some beams are associated with one chokepoint while other beams are associated with the other chokepoint. When replies from an item are received, the item can be associated with a chokepoint based on parameters or characteristics associated with the replies and/or the beam(s) on which the replies are received. If the detected item is moving, its movement direction through the chokepoint and/or its movement speed may also be determined.