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Distance sensitive remote control systems

  • US 6,744,364 B2
  • Filed: 10/25/2001
  • Issued: 06/01/2004
  • Est. Priority Date: 10/25/2001
  • Status: Expired due to Fees
First Claim
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1. A remote control system comprising:

  • a remote control transmitter operable to transmit a signal;

    a receiver operable to receive the signal from the remote control transmitter;

    a control device configured to produce an audible signal or to produce an inaudible signal, said control device responsive to the signal received by the receiver and operable to produce the audible signal if the distance between the remote control transmitter and the receiver is greater than a first predetermined distance and to produce the inaudible signal without an audible signal if the distance between the remote control transmitter and the receiver is less than a second predetermined distance, the second predetermined distance being less than or equal to the first predetermined distance.

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