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DSRC car-mounted equipment

  • US 6,175,791 B1
  • Filed: 08/23/1999
  • Issued: 01/16/2001
  • Est. Priority Date: 03/25/1999
  • Status: Expired due to Fees
First Claim
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1. A DSRC car-mounted equipment for executing a dedicated narrow-range communication with an on-the-road equipment installed on a road on which a vehicle travels, comprising:

  • a communication control unit for demodulating the signals received from said on-the-road equipment and for forming signals to be transmitted to said on-the-road equipment;

    an IC card accommodation portion in which is removably accommodated an IC card that works as an external storage medium;

    a contact portion provided in said IC card accommodation portion and is electrically connected to an electrode portion of said IC card;

    a car-mounted equipment controller for reading and writing data to, and from, said IC card;

    an information means for informing required data of said car-mounted equipment controller; and

    a circuit board mounting at least said communication control unit, said car-mounted equipment controller and said information means, and constituting said IC card accommodation portion;

    wherein said DSRC car-mounted equipment further comprises;

    a temperature sensor disposed near said IC card accommodation portion;

    a temperature-judging means for judging whether the temperature data detected by said temperature sensor lies within a temperature range tolerated by said IC card; and

    an alarm means for producing an alarm when said temperature data is deviated from said tolerable temperature range.

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