About 39 results
https://drivepatents.com/patents/1068963 · 22 Mar 2006
A portable device for facilitating adjustment of the area in which communication with a controller is enabled. The portable device performs wireless communication with an in-vehicle device, which controls a door lock driver or an engine starter of a vehicl...
https://drivepatents.com/patents/1070151 · 8 Feb 2006
The vehicle (1) has a unit (4) operating the control systems and the user (2) has a corresponding unit (5) which transmits and receives electromagnetic radiation signals (7) which confirm the identity and position of the user, lock/unlock the steering whee...
https://drivepatents.com/patents/1070565 · 25 Jan 2006
The vehicle (1) has a unit (4) operating the control systems and the user (2) has a corresponding unit (5) which transmits and receives electromagnetic radiation signals (7) which confirm the identity of the user, lock/unlock the steering wheel and door lo...
https://drivepatents.com/patents/1070939 · 11 Jan 2006
The locking system, especially for an access and driving enablement of a vehicle in the fashion of a Keyless Entry/Go-functionality, has a first (4) and a second (5) control device formed as a control unit. A transmitter (24a,24b) of the first device is al...
https://drivepatents.com/patents/1077081 · 15 Jun 2005
The circuit has an output terminal and an input terminal (1) at which a supply voltage is applied by a battery of a vehicle. A supply circuit is connected to ground. A voltage transformer is connected between an input terminal (Se) of the transformer and t...
https://drivepatents.com/patents/1079467 · 9 Mar 2005
LF antennas (46, 50) are mounted respectively on the corners of a rear bumper (304) of a vehicle (12). Radio waves radiated from the LF antennas (46, 50) mounted respectively on the corners of the rear bumper (304) are propagated to the both surfaces of th...
https://drivepatents.com/patents/1079474 · 9 Mar 2005
When a request to unlock a door Ä3R (3L)Ü of one side portion of a vehicle (1) is input, an ID request signal is transmitted from a first transmitting antenna Ä5R (5L)Ü provided in the one side portion, and an alarm signal is transmitted from a second ...
https://drivepatents.com/patents/1079668 · 2 Mar 2005
A wireless terminal position detecting system for a portable device includes a plural n-number of transmission antennas disposed such that a portion of their reachable areas overlap, a signal dividing device for dividing a request signal into the plural n-...
https://drivepatents.com/patents/1079845 · 23 Feb 2005
The apparatus includes a high frequency transceiver unit provided with at least two transmitting/receiving antennas arranged at different locations on the motor vehicle for communication with a mobile transponder. The transmission/reception operation of th...
https://drivepatents.com/patents/1082374 · 17 Nov 2004
The vehicle (1) has a central unit (2) with a radio frequency transmitter. An antenna of the transmitter sends an inquiry message with a carrier wave frequency less than 100 mega hertz, to a portable identifier (3). The antenna has transmission electrodes ...