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AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKoji Iwamoto, Motoshi Kondo, Masachika Kamiya, Takao Akatsuka
Estimating the term…
A vehicle antitheft system and method which effect re-registration and erasure of codes without using a tool used exclusively for such purposes. By the time T1 seconds has elapsed from the time a master key, in which a code is registered, is inserted into a key cylinder, turning an ignition switch from off to on is repeated five times. When opening and closing of a door is repeated six times and the ignition switch is turned off and the key is removed from the key cylinder in the next T2 seconds, a mode is changed to a master key code registration mode. When a master key whose code is to be registered is inserted into the key cylinder within T3 seconds from the time when a master key in which a code is registered is removed from the key cylinder, and the ignition switch is turned on within T4 seconds, an identification code to be registered is read from a transponder. When T5 seconds has elapsed, the read identification code is registered in the memory as a registered code.
A vehicle antitheft system which is set so as to prevent starting of an engine when a predetermined operation is carried out, and for which a setting is canceled so as to permit the starting of the engine when communication is carried out with a transponder provided in a key and transmitting an identification code and the identification code transmitted from the transponder matches a registered code which has been registered in advance, comprising:
A vehicle antitheft method which is set so as to prevent starting of an engine when a predetermined operation is carried out, and for which setting is canceled so as to permit the starting of the engine when communication is carried out with a transponder provided in a key and transmitting an identification code and the identification code transmitted from the transponder matches a registered code which has been registered in advance, comprising the steps of:
A vehicle antitheft system which is set so as to prevent starting of an engine when a predetermined operation is carried out, and for which a setting is canceled so as to permit the starting of the engine when communication is carried out with a transponder provided in a key and transmitting an identification code and the identification code transmitted from the transponder matches a registered code which has been registered in advance, comprising:
A vehicle antitheft system which is set so as to prevent starting of an engine when a predetermined operation is carried out, and for which a setting is canceled so as to permit the starting of the engine when communication is carried out with a transponder provided in a key and transmitting an identification code and the identification code transmitted from the transponder matches a registered code which has been registered in advance, comprising:
Dependencies are inferred from the claim text.