enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Immobiliser - Wikipedia

   en.wikipedia.org/wiki/Immobiliser

   The electric immobiliser/alarm system was invented by St. George Evans and Edward Birkenbuel and patented in 1919. [2] They developed a 3x3 grid of double-contact switches on a panel mounted inside the car so when the ignition switch was activated, current from the battery (or magneto) went to the spark plugs allowing the engine to start, or immobilizing the vehicle and sounding the horn. [3]

3. Remote keyless system - Wikipedia

   en.wikipedia.org/wiki/Remote_keyless_system

   His electrically actuated lock system could be controlled by using a handheld fob to stream infrared data. Patented in 1981 after successful submission in 1979, it worked using a "coded pulse signal generator and battery-powered infra-red radiation emitter." In some geographic areas, the system is called a PLIP system, or Plipper, after Lipschutz.

4. Smart key - Wikipedia

   en.wikipedia.org/wiki/Smart_key

   A Nissan Fuga intelligent key. A smart key is a vehicular passive entry system developed by Siemens in 1995 and introduced by Mercedes-Benz under the name "Keyless-Go" in 1998 on the W220 S-Class, [1] after the design patent was filed by Daimler-Benz on May 17, 1997.

5. Power door locks - Wikipedia

   en.wikipedia.org/wiki/Power_door_locks

   Pressing a button on the key unlocks all of the car doors. Another button locks the car. In 1980, Ford Motor Company introduced an external keypad-type keyless entry system, wherein the driver entered a numeric combination —either pre-programmed at the factory or one programmed by the owner— to unlock the car without the key.

6. Electronic lock - Wikipedia

   en.wikipedia.org/wiki/Electronic_lock

   A quick demonstration of an electronic door lock. An electronic lock (or electric lock) is a locking device which operates by means of electric current. Electric locks are sometimes stand-alone with an electronic control assembly mounted directly to the lock.

7. Security alarm - Wikipedia

   en.wikipedia.org/wiki/Security_alarm

   Wireless systems, on the other hand, often use battery-powered transmitters which are easier to install and have less expensive start-up costs, but may fail if the batteries are not maintained. Depending on distance and construction materials, one or more wireless repeaters may be required to bring the signal to the alarm panel reliably.