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AssigneesContinental Automotive France, Continental Automotive GmbH
InventorsRachid BENBOUHOUT, Sylvain GODET
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Disclosed is a method for locating a portable device giving “hands free” access to a vehicle, by a location device intended to be installed in the vehicle, the portable device communicating with the location device by ultra high frequency waves, the invention consisting at each transmission of an ultra high frequency signal by the location device: of simultaneously transmitting by the location device at least one ultrasonic signal, intended for the portable device; of measuring a delay between a first time of reception of the ultra high frequency signal and un second time of reception of the ultrasonic signal by the portable device; of determining a distance between the portable device and the location device on the basis of the delay thus measured. Also disclosed is a location device and a corresponding portable device.
Method for locating a portable device (P′) for the “hands free” access to a vehicle (V′) by a location device (D′) intended to the installed in the vehicle (V′), the said portable device (P′) communicating with the said location device (D′) by ultra high frequency waves, the method comprising at every transmission of an ultra high frequency signal by the location device (D′):
Device (D′) for the location of a portable device giving “hands free” access to a vehicle (V′), intended to be installed in the said vehicle (V′), the said portable device (P′) communicating with the said location device (D′) by ultra high frequency waves, the location device (D′) comprising:
Portable device (P′) for “hands free” access to a vehicle, intended to be located by a location device (D′), the said portable device (P′) communicating with the said location device (D′) by ultra high frequency waves, the portable device (P′) comprising:
Device (D′) for locating a portable device giving “hands free” access to a vehicle (V′), intended to be installed in the said vehicle (V′), the said portable device (P′) communicating with the said location device (D′) by ultra high frequency waves, the said location device (D′) comprising:
Portable device (P′) giving “hands free” access to a vehicle, intended to be located by a location device (D′), the said portable device (P′) communicating with the said location device (D′) by ultra high frequency waves, the portable device (P′) comprising:
Dependencies are inferred from the claim text.