Invention Grant
- Patent Title: Secure vehicle access system, key, vehicle and method therefor
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Application No.: US15841025Application Date: 2017-12-13
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Publication No.: US10239494B2Publication Date: 2019-03-26
- Inventor: Bernhard Spiess
- Applicant: NXP B.V.
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Agent Rajeev Madnawat
- Priority: EP16204043 20161214
- Main IPC: H04M1/60
- IPC: H04M1/60 ; B60R25/24 ; G07C9/00 ; H04B1/69

Abstract:
A secure vehicle access system comprises a vehicle and a key associated with the vehicle. The key comprises: a radio frequency, RF, key transceiver configured to: broadcast at least one signal; and listen for an acknowledgement message from the vehicle. The vehicle comprises: a radio frequency, RF, vehicle transceiver configured to: listen for the at least one broadcast signal from the key; and in response thereto, transmit an acknowledgement message back to the key to establish a communication link between the vehicle and the key. The key further comprises a ranging circuit configured to perform a distance determination between the vehicle and the key, following the establishment of the communication link, to determine whether to allow access to the vehicle.
Public/Granted literature
- US20180162321A1 SECURE VEHICLE ACCESS SYSTEM, KEY, VEHICLE AND METHOD THEREFOR Public/Granted day:2018-06-14
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