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Car security apparatus and car security system

  • US 6,100,792 A
  • Filed: 05/20/1997
  • Issued: 08/08/2000
  • Est. Priority Date: 05/20/1996
  • Status: Expired due to Term
First Claim
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1. A car security system mounted on a vehicle, the car security system comprising:

  • a car security apparatus for protecting the vehicle from theft and tampering connected to a plurality of sensors, each sensor disposed to detect an abnormal condition of a vehicle, the car security apparatus including means for storing, as faulty sensor information, data identifying a sensor from which faulty operation is detected; and

    an onboard device connected to the car security apparatus via a cable, the onboard device including a display for presenting the faulty sensor information transmitted from the car security apparatus via the cable in the form of alphanumeric characters.

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