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Apparatus and process for monitoring a vehicle condition

  • US 20090243829A1
  • Filed: 03/31/2008
  • Published: 10/01/2009
  • Est. Priority Date: 03/31/2008
  • Status: Active Grant
First Claim
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1. Apparatus for monitoring a vehicle condition comprising:

  • a sensor for sensing the vehicle condition;

    a transmitter for transmitting signals indicative of the sensed vehicle condition, the transmitted signals including a first signal set and a second signal set; and

    a receiver mountable on the vehicle for receiving the transmitted signals, said receiver having a first operating state when the vehicle ignition is OFF and a second operating state when the vehicle ignition is ON;

    the first signal set including a wake-up portion to wake up the receiver when the receiver is in its first operating state and an information portion, the second signal set including an information portion, the transmitted signals including at least one first signal set and at least one second signal set during a predetermined time period when the vehicle ignition is OFF and when the vehicle ignition is ON.

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