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Vehicular remote control system and tire pressure monitoring system

  • US 20050162259A1
  • Filed: 12/23/2004
  • Published: 07/28/2005
  • Est. Priority Date: 12/25/2003
  • Status: Active Grant
First Claim
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1. A vehicular remote control system comprising a mobile unit portable by a user, a vehicle unit for establishing bidirectional wireless communication with this mobile unit, which is able to transmit a wireless signal to the mobile unit through transmission antennas provided at a plurality of positions of a vehicle, and operational intention detection means, provided at a plurality of positions of the vehicle corresponding to the transmission antennas, for detecting operational intention of a user approaching the positions, in which when a user'"'"'s operational intention is detected by the operational intention detecting means, this works as a trigger, a predetermined request signal is transmitted from the vehicle unit to the mobile unit through the transmission antenna arranged at the corresponding position of the vehicle, and the vehicle unit performs a predetermined processing operation according to the received result of an answer signal transmitted from the mobile unit in reply to this request signal, and at the same time when the request signal is transmitted through the transmission antenna at the position where the trigger occurred, the vehicle unit transmits an interrupt signal for preventing reception of the request signal, through the transmission antenna arranged at any other position than the above position, at least at one moment of a time period during which the request signal is being transmitted.

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