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. 07, 2025
Filed:
Nov. 12, 2021
Clairvoyant Technology, Inc., Durham, NC (US);
Thomas J. Frederick, Chapel Hill, NC (US);
Clairvoyant Technology, Inc., Durham, NC (US);
Abstract
Aspects and features of this disclosure include an RFID reader with an integrated noise-canceling RFID receiver. The receiver includes a baseband converter configured to receive an RFID signal and a cancelation signal. The baseband converter acts as a received signal mixer and also provides noise cancelation using the cancelation signal. A modulated feedback signal completes closed-loop signal path that automatically provides noise control, both noise shaping and noise filtering, improving the receiving performance by efficiently reducing or eliminating noise that would otherwise be produced by the transmitter of the RFID reader.