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Infrared remote control device

  • US 5,072,247 A
  • Filed: 07/09/1990
  • Issued: 12/10/1991
  • Est. Priority Date: 07/09/1990
  • Status: Expired due to Fees
First Claim
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1. For use in conjunction with a conventional infrared transmitter which generates a series of pulses upon actuation, a device for remotely controlling an electrically activated unit comprising:

  • means for detecting an infrared signal pulse and for producing a single output signal pulse in response to each infrared signal pulse detected by said detecting means,means for counting each said output signal pulse from said detecting means,means for continuously periodically generating a series of reset signals, said generating means generating one reset signal during a preset time interval so that the time duration between successive reset signals remains constant,means responsive to each reset signal for resetting said counting means to a preset number,means responsive to a count in the counter greater than a predetermined count for generating an activation signal, andmeans responsive to said activation signal for activating the electrically activated unit.

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