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System for warning against forgetting to pull out information recording medium

  • US 7,515,038 B2
  • Filed: 02/14/2006
  • Issued: 04/07/2009
  • Est. Priority Date: 10/20/2005
  • Status: Expired due to Fees
First Claim
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1. A system for warning against forgetting to pull out an information recording medium, said system comprising:

  • a battery that is installed on a vehicle;

    a navigation unit that is installed on said vehicle;

    an on-board radio unit that is installed on said vehicle with an information recording medium being attached to the on-board radio unit and removed the on-board radio unit;

    a drive unit switch that is connected to the battery for controlling to drive and stop a drive unit that is mounted on said vehicle for driving thereof;

    a control part that is connected to said drive unit switch through a power supply line, and to said on-board radio unit through a communication line and an on-board radio unit power supply line; and

    a notification part that is mounted on said navigation unit for notifying a residual state of said information recording medium to a user;

    wherein said control part detects when said drive unit switch has been turned off, also detects the residual state of said information recording medium with respect to said on-board radio unit through said communication line thereby to notify it to said notification part, and interrupts the supply of power to said on-board radio unit through said on-board radio unit power supply line when said information recording medium is absent.

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