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:
Jan. 27, 2026
Filed:
Jul. 06, 2023
Nxp B.v., Eindhoven, NL;
NXP B.V., Eindhoven, NL;
Abstract
A near-field communication (NFC) device is configured to track the amplitude associated with a received radio frequency (RF) signal while transmitting a different RF signal indicating a command. To this end, the NFC device includes tracking circuitry configured to track the amplitude associated with the received RF signal based on a modulation state indicated by a modulation envelope associated with the transmitted RF signal. In response to the modulation envelope indicating a modulated state, the tracking circuitry enters an idle state and does not track the amplitude associated with the received RF signal. In response to the modulation envelope indicating an unmodulated state, tracking circuitry tracks the amplitude associated with the received RF signal.