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:
May. 27, 2025
Filed:
Apr. 20, 2022
Clairvoyant Technology, Inc., Durham, NC (US);
Thomas J. Frederick, Chapel Hill, NC (US);
Clairvoyant Technology, Inc., Durham, NC (US);
Abstract
Certain aspects and features of the present disclosure relate to a system that improves the localization and interrogation of RFID tags in an environment with many tags. Suppression antennas are used to create suppression zones around large background tag populations around or near the portal. The suppression antennas quiet the tags in a suppression zone to prevent erroneous tracking of these tags at nearby RFID portal antennas. Optionally, a suppression RFID reader can communicate with neighboring readers, including a portal RFID reader, to provide information that can be used for expedited tracking of a tag that may be approaching an RFID portal.