Methods and apparatuses for detecting an unauthorized RF device
AssigneeSensormatic Electronics Corporation
InventorsAdam S. Bergman, Steve Trivelpiece, David Torrecilla
Life of this patent
Estimating the term…
Abstract
Aspects of the present disclosure include methods, systems, and non-transitory computer readable media for identifying one or more authorized signal characteristic associated with at least one authorized RF signal, receiving at least one incoming RF signal having one or more incoming signal characteristic, identifying the one or more incoming signal characteristic, determining a presence of the unauthorized RF device based on at least one of the one or more authorized signal characteristic or the one or more incoming signal characteristic, and activating an alarm in response to determining the presence of the unauthorized RF device.
Claims27
A method of detecting an unauthorized radio frequency (RF) device by a RF scanner, comprising:
- identifying, at the RF scanner, one or more authorized signal characteristic associated with at least one authorized RF signal;
- transmitting, by the RF scanner, at least one source RF signal to read a security tag configured to backscatter the at least one authorized RF signal;
- receiving, at the RF scanner, in response to transmitting the at least one source RF signal, at least one incoming RF signal having one or more incoming signal characteristic, wherein the at least one incoming RF signal is different than the at least one authorized RF signal;
- identifying, at the RF scanner, the one or more incoming signal characteristic;
- determining, at the RF scanner, a presence of the unauthorized RF device based on at least one of the one or more authorized signal characteristic or the one or more incoming signal characteristic;
- and
- transmitting an alarm message to an alarm to active the alarm in response to determining the presence of the unauthorized RF device.
A radio frequency identification (RFID) scanner, comprising:
- a RFID driver;
- a memory that stores instructions;
- and
- a processor configured to execute the instructions to:
- identify, at the RFID scanner, one or more authorized signal characteristic associated with at least one authorized RF signal;
- cause the RFID driver to transmit at least one source RF signal to read a security tag configured to backscatter the at least one authorized RF signal;
- cause the RFID driver to receive, in response to transmitting the at least one source RF signal, at least one incoming RF signal having one or more incoming signal characteristic;
- identify, at the RFID scanner, the one or more incoming signal characteristic;
- determine, at the RFID scanner, a presence of the unauthorized RF device based on at least one of the one or more authorized signal characteristic or the one or more incoming signal characteristic;
- and
- transmit an alarm message to an alarm to active the alarm in response to determining the presence of the unauthorized RF device.
A radio frequency identification (RFID) system, comprising:
- a security tag configured to backscatter at least one authorized RF signal;
- and
- a RFID scanner comprising:
- a RFID driver;
- a memory that stores instructions;
- and
- a processor configured to execute the instructions to:
- identify, at the RFID scanner, one or more authorized signal characteristic associated with the at least one authorized RF signal;
- cause the RFID driver to transmit at least one source RF signal to read the security tag;
- cause the RFID driver to receive, in response to transmitting the at least one source RF signal, at least one incoming RF signal having one or more incoming signal characteristic;
- identify, at the RFID scanner, the one or more incoming signal characteristic;
- determine, at the RFID scanner, a presence of the unauthorized RF device based on at least one of the one or more authorized signal characteristic or the one or more incoming signal characteristic;
- and
- transmit an alarm message to an alarm to active the alarm in response to determining the presence of the unauthorized RF device.
Dependencies are inferred from the claim text.