Hands-free system for unlocking and/or opening an openable member of a motor vehicle
First Claim
1. A system for unlocking and/or opening an openable member of a motor vehicle, the system comprising, on the vehicle, a control unit controlling means for unlocking and/or opening the openable member, and transmitter/receiver means connected to said control unit, said system also comprising transmitter/receiver means carried by a user and designed to transmit an identification code to the transmitter/receiver means of the vehicle to unlock and/or open the openable member, wherein the user'"'"'s transmitter/receiver means are constituted by a transponder carried by the user, the transmitter/receiver or means of the vehicle including at least one antenna situated on the openable member or in the vicinity thereof, said transmitter/receiver means of the vehicle entering into dialogue with the transponder for transmitting the identification code from the transponder to the transmitter/receiver means of the vehicle only when the transponder is situated in the immediate vicinity of said antenna, the control unit comprising means to detect the presentation of the transponder according to a predetermined sequence to said at least one antenna of the transmitter/receiver means of the vehicle in addition to the transmission of the identification code when the transponder is situated in the immediate vicinity of the antenna and controlling unlocking and/or opening of the openable member when said predetermined sequence is detected.
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Accused Products
Abstract
A system for unlocking and/or opening an openable member of a motor vehicle comprises a control unit, transmitter/receiver means connected to said control unit, and a transponder worn or carried by a user. The transmitter/receiver means of the vehicle comprise at least one antenna situated on the openable member or in the vicinity thereof, said transmitter/receiver means entering into dialogue with the transponder only when it is situated in the immediate vicinity of said antenna. The control unit causing the openable member to be unlocked and/or opened when the transponder is presented in a predetermined sequence to the antenna(s) of the transmitter/receiver means of the vehicle.
153 Citations
21 Claims
- 1. A system for unlocking and/or opening an openable member of a motor vehicle, the system comprising, on the vehicle, a control unit controlling means for unlocking and/or opening the openable member, and transmitter/receiver means connected to said control unit, said system also comprising transmitter/receiver means carried by a user and designed to transmit an identification code to the transmitter/receiver means of the vehicle to unlock and/or open the openable member, wherein the user'"'"'s transmitter/receiver means are constituted by a transponder carried by the user, the transmitter/receiver or means of the vehicle including at least one antenna situated on the openable member or in the vicinity thereof, said transmitter/receiver means of the vehicle entering into dialogue with the transponder for transmitting the identification code from the transponder to the transmitter/receiver means of the vehicle only when the transponder is situated in the immediate vicinity of said antenna, the control unit comprising means to detect the presentation of the transponder according to a predetermined sequence to said at least one antenna of the transmitter/receiver means of the vehicle in addition to the transmission of the identification code when the transponder is situated in the immediate vicinity of the antenna and controlling unlocking and/or opening of the openable member when said predetermined sequence is detected.
Specification