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Systems and methods for operating a tag

專利號(hào)
US11176335B2
公開日期
2021-11-16
申請(qǐng)人
Sensormatic Electronics, LLC(US FL Boca Raton)
發(fā)明人
Steve E. Trivelpiece; Craig E. Trivelpiece; Eric F. Riggert
IPC分類
G06K7/10; G06K19/07; G06K7/00
技術(shù)領(lǐng)域
tag,rfid,tags,tag's,or,in,e.g,reader,motion,wot
地域: FL FL Boca Raton

摘要

Systems and methods for operating a Radio Frequency Identification (“RFID”) tag. The methods comprise: monitoring a level of Radio Frequency (“RF”) energy being received by the RFID tag; performing operations by a circuit of the RFID tag to compare the level of RF energy in a given frequency band to a first threshold value; and transitioning an operational mode of the RFID tag from a first operational mode in which a receiver is disabled to a second operational mode in which the receiver is enabled, when the level of RF energy exceeds the first threshold value. The RFID tag is able to communicate with a remote tag reader when the RFID tag is in the second operational mode and not when the RFID tag is in the first operational mode.

說明書

The communication enabled device 204 also comprises a communications circuit 206. Communications circuits are well known in the art, and therefore will not be described herein. Any known or to be known communications circuit can be used herein provided that it supports RFID communications. For example, in some scenarios, the communications circuit comprises a transceiver. In other scenarios, the communications circuit comprises a receiver and is configured to provide a backscatter response.

During operation, the communications circuit 206 processes received signals (e.g., RF signals) transmitted from external devices to determine whether it should transmit a response signal (e.g., RF carrier signal) to external devices or provide a backscatter response to the external device. In this way, the communication enabled device 204 facilitates the registration, identification, location and/or tracking of an item (e.g., object 110 or 112 of FIG. 1) to which the tag 200 is coupled.

權(quán)利要求

1
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