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Cellular phone blocker

  • US 7,123,874 B1
  • Filed: 12/10/2001
  • Issued: 10/17/2006
  • Est. Priority Date: 12/10/2001
  • Status: Expired due to Fees
First Claim
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1. An electronic device generating radio frequency signals that prevents the reception of radio frequency signals used in cellular phone technology comprising:

  • a) said electronic device being mounted within a dashboard of a motor vehicle;

    b) said electronic device containing a transmitter for transmitting radio frequency jamming signals to be received by a cellular phone within said vehicle to block telephone reception by said cellular phone; and

    c) said electronic device being incorporated into the vehicle'"'"'s ignition by hard wiring said electronic device to an ignition switch in said motor vehicle to receive power when said ignition switch is turned on so that said electronic device issues a cellular phone jamming signal when said ignition system is energized and ceases to issue a jamming signal when said ignition switch is not energized; and

    d) said electronic device having an indicator light on a front face thereof and a cellular phone jammer antenna contained within a housing for said electronic device.

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