Release Signal Authentication Method of Immobilizer
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United States of America Patent
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Issued Date -
Sep 11, 2008
app pub date -
Mar 3, 2008
filing date -
Mar 8, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a release signal authentication method for an immobilizer, a main switch can be turned on in a state that a battery is not mounted or the like, power is supplied to a CPU by power generation resulting from manual rotation of the engine, a release signal can be inputted by the user in a state that the engine is rotating, and the rotation of the engine is continued if the release signal matches with a release signal registered in advance. Further, in the release signal authentication method for an immobilizer, an input of the release signal can be given by operating an electrical apparatus using voltage supplied by the main switch, the release signal can be discriminated in the CPU, and the release signal can be discriminated only when a voltage amount supplied to the main switch is equal to or higher than a voltage amount that the CPU can recognize that the main switch is in a ON-state.
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