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Vehicle antitheft device and program

  • US 6,788,189 B2
  • Filed: 10/25/2002
  • Issued: 09/07/2004
  • Est. Priority Date: 01/21/2002
  • Status: Expired due to Fees
First Claim
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1. A vehicle antitheft device installed in a vehicle provided with a network system including a gateway, a plurality of local area networks, and a plurality of electronic control units coupled through a network, wherein the gateway mediates data communication according to diverse protocols among the plurality of local area networks, and wherein each of the plurality of local area networks is connected with at least one of the electronic control units, the device comprising:

  • first means for determining a hazard state, where vehicle theft possibly arises, including one of an unauthorized replacement and a removal of at least one electronic control unit; and

    second means for at least partially disabling the network system by interfering with the data communication upon determining the hazard states, wherein the first means and the second means are included in the gateway.

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