Recognition device intended to order the unlocking of a vehicle door and/or to authorize the starting of a vehicle
AssigneeValeo Electronique
InventorThierry Belinguier
Life of this patent
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Abstract
A recognition device is described that is used to control the unlocking of vehicle openings and/or to authorize the start-up of the vehicle. The device includes a first emitter which, on command, can send a first user identification signal over a carrier wave having a given first frequency (ν1) to a receiver. The device also includes a second emitter which can emit at least one second user identification signal over a carrier wave having a second frequency (ν2) which is different from the first frequency such that the second signal can act as an identifier signal in the shadow zones where the first signal is not recognized.
Claims7
An identification device for controlling locking and unlocking of at least one openable panel of a vehicle and authorizing a starting of a vehicle, comprising:
- at least one signal transmitter for sending a first user identification signal on a first given carrier frequency to a receiver and at least one second user identification signal on a second carrier frequency different from the first carrier frequency,
- wherein the at least one second signal is able to serve as an identifying signal in shadow zones of the first signal, and
- wherein the second frequency is a harmonic of the first frequency.
Dependencies are inferred from the claim text.