"Hands-free" access and/or engine starting system for automobile vehicles

The disclosure relates to an authentication device for automobile vehicles that controls door locking and/or engine starting and is able to interchange data over a certain distance with an identifier, intended to be carried by a user, when said identifier lies within the emission/reception coverage...

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Bibliographische Detailangaben
Hauptverfasser:	BAUDARD XAVIER, MORILLON JACQUES
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE BLASTING CHECKING-DEVICES COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FIXED CONSTRUCTIONS GENERATING RANDOM NUMBERS HANDCUFFS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS KEYS LIGHTING LOCKS MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICS REGISTERING OR INDICATING THE WORKING OF MACHINES SAFES STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR STARTING OF COMBUSTION ENGINES TIME OR ATTENDANCE REGISTERS TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR VOTING OR LOTTERY APPARATUS WEAPONS WINDOW OR DOOR FITTINGS WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	The disclosure relates to an authentication device for automobile vehicles that controls door locking and/or engine starting and is able to interchange data over a certain distance with an identifier, intended to be carried by a user, when said identifier lies within the emission/reception coverage zone of said authentication device, to enable "hands-free" vehicle access and/or engine starting when said identifier has been authenticated by said authentication device, wherein said authentication device is connected to a single antenna inside the vehicle passenger compartment and is able to emit via said antenna at least two distinct emission powers, a first emission power enabling said antenna to cover a first zone including at least part of said passenger compartment, and a second emission power greater than said first emission power enabling said antenna to cover a second zone including at least the whole of said passenger compartment and possibly a coverage zone outside said vehicle.