Passive entry passive start (PEPS) system with integrated authorization and ranging communications
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United States of America Patent
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Mar 6, 2018
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N/A
app pub date -
Jan 20, 2017
filing date -
Jan 20, 2017
priority date (Note) -
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Abstract
A system includes a remote controller, such as a fob, and a base station at a target device, such as a vehicle. The remote controller and the base station are configured to communicate authorization communications and time-of-flight (ToF) communications between one another over a common communications channel. The base station is further configured to confirm from the authorization communications whether the remote controller is authorized for controlling a function of the target device and to confirm from the ToF communications whether the remote controller is within a predetermined range of the target device. The base station is further configured to prevent the function from being controlled by the control unit when the control unit is not within the predetermined range of the target device.
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