Passive digital key systems
AssigneeQUALCOMM Incorporated
InventorsRolf De Vegt, Xiaoxin Zhang, Peyman Siyari
Life of this patent
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Abstract
Techniques are provided for validating a mobile device in a passive digital key system. An example method of validating a mobile device includes determining a positioning measurement for the mobile device relative to a reference point, obtaining a measured distance with at least a first transceiver, obtaining a calibration distance based at least in part on the positioning measurement for the mobile device, computing a validation distance based at least in part on a difference between the measured distance and the calibration distance, and validating the mobile device based at least in part on a comparison of the validation distance and a threshold value.
Claims50
A method of validating a mobile device, comprising:
- determining a positioning measurement for the mobile device relative to a reference point;
- obtaining a measured distance with at least a first transceiver;
- obtaining a calibration distance based at least in part on the positioning measurement for the mobile device;
- computing a validation distance based at least in part on a difference between the measured distance and the calibration distance;
- and
- validating the mobile device based at least in part on a comparison of the validation distance and a threshold value.
A method of validating a mobile device, comprising:
- determining an angle to the mobile device relative to a reference point with at least a first radio transceiver;
- obtaining a measured distance to the mobile device with at least a second radio transceiver;
- obtaining a calibration distance based at least in part on the angle to the mobile device;
- computing a validation distance based at least in part on a difference between the measured distance and the calibration distance;
- and
- validating the mobile device based at least in part on a comparison of the validation distance and a threshold value.
An apparatus, comprising:
- a memory;
- at least one transceiver;
- at least one processor communicatively coupled to the memory and the at least one transceiver, and configured to:
- determine a positioning measurement for a mobile device relative to a reference point;
- obtain a measured distance with at least a first transceiver;
- obtain a calibration distance based at least in part on the positioning measurement for the mobile device;
- compute a validation distance based at least in part on a difference between the measured distance and the calibration distance;
- and
- validate the mobile device based at least in part on a comparison of the validation distance and a threshold value.
An apparatus, comprising:
- a memory;
- at least one transceiver;
- at least one processor communicatively coupled to the memory and the at least one transceiver, and configured to:
- determine an angle to a mobile device relative to a reference point with at least a first radio transceiver;
- obtain a measured distance to the mobile device with at least a second radio transceiver;
- obtain a calibration distance based at least in part on the angle to the mobile device;
- compute a validation distance based at least in part on a difference between the measured distance and the calibration distance;
- and
- validate the mobile device based at least in part on a comparison of the validation distance and a threshold value.
An apparatus for validating a mobile device, comprising:
- means for determining a positioning measurement for the mobile device relative to a reference point;
- means for obtaining a measured distance with at least a first transceiver;
- means for obtaining a calibration distance based at least in part on the positioning measurement for the mobile device;
- means for computing a validation distance based at least in part on a difference between the measured distance and the calibration distance;
- and
- means for validating the mobile device based at least in part on a comparison of the validation distance and a threshold value.
An apparatus for validating a mobile device, comprising:
- means for determining an angle to the mobile device relative to a reference point with at least a first radio transceiver;
- means for obtaining a measured distance to the mobile device with at least a second radio transceiver;
- means for obtaining a calibration distance based at least in part on the angle to the mobile device;
- means for computing a validation distance based at least in part on a difference between the measured distance and the calibration distance;
- and
- means for validating the mobile device based at least in part on a comparison of the validation distance and a threshold value.
Dependencies are inferred from the claim text.