Patent ID: 6919798

Claim:
A vehicle wheel information obtaining apparatus for obtaining wheel information relating to a wheel of a vehicle, said apparatus comprising: a wheel state detector which is provided on the wheel and which detects a state of the wheel; a transmitter which is provided on the wheel and which transmits a wheel data set, as said wheel information, containing a wheel state data representing the detected state of the wheel and a wheel identification data identifying the wheel; a receiver which is provided on a body of the vehicle and which receives said wheel data set transmitted by said transmitter; a data processor which processes said wheel data set received by said receiver, said data processor having an identification-data registering mode for registering said wheel identification data contained in said wheel data set, and a wheel-state data obtaining mode for obtaining said wheel state data contained in said wheel data set; and a communication-intensity reducing device which reduces at least one of a transmission strength of said transmitter and a reception sensitivity of said receiver, such that said at least one of said transmission strength and said reception sensitivity is lower when said data processor is in said identification-data registering mode, than when said data processor is in said wheel-state data obtaining mode.