The arrangement has a number of antennas (1-5) arranged separately from each other on the motor vehicle, a portable key element for authenticating a user, a control unit (11) for the antennas that can communicate via one or more antennas with the external ...

The entry system (10) includes a control device (14) in the vehicle and an identification device (16) carried by a driver. A transceiver (18) is arranged next to the control device (14) for wireless communication with another transceiver (20) located in th...

The car door remote control locking mechanism has two antennas (3,4) on the car (1) to detect an identifying badge (2). The field vector of each signal is used to identify the badge. Coherence is verified between the field vectors and the access plate. Onl...

A wireless device for a vehicle (15) is provided with a portable transmitter and receiver unit having a transponder and a keyless circuitry, and an on-vehicle transmitter and receiver device having antennas (33a,33b,34) and a controller adapted to communic...

The portable receiver is carried by a car driver to enable operation of the anti-theft system. It comprises two antennae (10,20) orientated along different axes, each connected to a phase-shifting circuits (12,22). A multiplexing circuit (24) combines the ...

The electronic circuit intended to supply a magnetic field transmitting coil has a first input terminal (1) to receive a supply voltage (Ubat), a second input terminal (2) to receive a periodic control signal (SC) within a predefined frequency range, an ou...

Recognition device (1) connected to pair of antennas (2,3) remotely exchanges data with authenticated identification unit (11) worn by user. The antennas have pair of zones of coverage (Z1,Z2) which respectively exist within and outside the cabin of vehicl...

The system has a identification and recognition unit installed on the side of the vehicle and having two emitting antennae disposed on the right and left side of the vehicle, each antennae (3,5), having a field radius encircling part of the interior space ...

Vehicle (V1) has antenna (2) inside the car interior (H) with two distinct transmission power, one (Z1) with the signal covering the car interior and the other (Z2) covering a greater surface. The user carries a identifier (3) which receives signal (F1) fr...