About 125 results
https://drivepatents.com/patents/1106878 · 6 Feb 2002
A non-contact data carrier includes a battery (29), an electric-supply circuit (4) for rectifying a received carrier signal and generating power, and an electric-supply switching circuit (9) for comparing the voltage of the battery and the voltage generate...
https://drivepatents.com/patents/1106813 · 6 Feb 2002
The device comprises, for shutting off compressed air flow to the operating chamber (61) of the cylinder-piston unit (6), a valve with a valving element (20) normally closing an access port (12) to said cylinder-piston unit (6) but openable by electromagne...
https://drivepatents.com/patents/1106810 · 6 Feb 2002
A vehicle security system includes a vehicle anti-theft controller (12) in communication with an identification system (14) and a power distribution system (16). The power distributing system limits power to the ignition system starter motor (22). The powe...
https://drivepatents.com/patents/1106752 · 6 Feb 2002
An improved antitheft system for a vehicle wherein the antitheft control unit and the ignition control unit share a common CPU as one method of avoiding external connections that could be jumped by an unauthorized user.
https://drivepatents.com/patents/1108987 · 31 Oct 2001
In a battery such as a starter battery for a motor vehicle semiconductor switches such as MOSFET-switches (11) are connected in parallel between the middle battery cells (7, 9). The switches (11) are controlled by a processor (15) which can receive signals...
https://drivepatents.com/patents/1109020 · 24 Oct 2001
A security system to prevent unauthorised starting of the engine of a vehicle, comprises a remote control unit (18) equipped with a transponder which, on reception of an interrogation signal by means of at least one reception aerial (20), transmits an iden...
https://drivepatents.com/patents/1109586 · 4 Oct 2001
The identification system is incorporated in the computer controlling the operation of the vehicle, and responds to a badge (1) carried by the driver. The badge carries authorization information to allow starting of the engine. The badge contains an electr...
https://drivepatents.com/patents/1109529 · 4 Oct 2001
The device has a portable transponder (16) with a memory (14) for storing at least one set of authorization information and an arrangement for exchanging data with a vehicle management system (12), via which the authorization information can be influenced ...
https://drivepatents.com/patents/1110285 · 12 Sep 2001
The low frequency communications system has a console (3) mounted inside on the car floor. The console is connected to an antenna (4) running along the car length forming an extended loop around the console. The antenna has an air interface and its shape a...
https://drivepatents.com/patents/1110617 · 29 Aug 2001
The system has at least one key unit regularly carried by a user, a lock system for access to a security object using the key unit and a monitoring center that communicates with the lock system. The monitoring center and/or lock system checks at least the ...