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Wheel condition determination apparatus

  • US 20060249323A1
  • Filed: 03/16/2006
  • Published: 11/09/2006
  • Est. Priority Date: 04/20/2005
  • Status: Active Grant
First Claim
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1. A wheel condition determination apparatus which determines a condition of a wheel provided in a vehicle, comprising:

  • a primary sensor unit, provided in the wheel, which includes a first transceiver, a first detector that detects a first predetermined parameter indicating the condition of the wheel, and an operation-mode controller; and

    a secondary sensor unit, provided in the wheel, which includes a second transceiver, and a second detector that detects a second predetermined parameter indicating the condition of the wheel, which is different from the first predetermined parameter, wherein the operation mode controller instructs the first transceiver to generate a mode-setting signal to set an operation mode of the secondary sensor unit to one of an active mode and a sleep mode, based on the detected first predetermined parameter.

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