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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]
SecuriLock, also known as Passive Anti-Theft System (PATS), is an immobilizer technology that Ford began using select Ford as well as Lincoln, and Mercury models. Each key have a radio frequency transponder embedded in the plastic head with a unique electronic identification code.
In the case of vehicle theft, the best deterrent to theft is in the installation of an approved vehicle anti-theft passive immobilizer. Many vehicles have factory-installed anti-theft units, which provide protection through the ignition system. Under the hood there is a computer that controls the operation of the engine.
An early version of a car alarm for use as a theft deterrent was invented by an unknown prisoner from Denver in 1913. [1] This version was manually armed, and triggered when someone tried to crank the engine. A later alarm inspired by an early version of a remote starter was published in 1916. [2]
The Federal Trade Commission includes VIN etching on a list of upsold services including extended warranties, service and maintenance plans, payment programs, guaranteed automobile or asset protection, emergency road service, and other theft protection devices, and warns consumers about the practice of upselling when buying a vehicle.
A vehicle might use a chirp system: two beeps on driver door unlocking, four beeps on unlocking of all doors, a long beep for the trunk or power tailgate or a short beep on locking and arming of the alarm. The functions of a remote keyless entry system are contained on a key fob or built into the ignition key handle itself. Buttons are ...
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.
An attacker may be able to learn the code word that opened the door just now, but the receiver will not accept that code word for the foreseeable future. A rolling code system uses cryptographic methods that allow the remote control and the receiver to share codewords but make it difficult for an attacker to break the cryptography.