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Circuit and method for providing a light energy response to an event in real time

  • US 4,843,627 A
  • Filed: 08/05/1986
  • Issued: 06/27/1989
  • Est. Priority Date: 08/05/1986
  • Status: Expired due to Term
First Claim
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1. A sound-to-light converter for converting a signal from a sound source to visible light energy in real time, the sound-to-light converter comprising:

  • a light source;

    a power supply for illuminating the light source;

    means for monitoring the sound source signal comprising(a) a voltage controlled pulse generator which generates a pulsed output signal having a pulse repetition frequency corresponding to the intensity of the sound source signal; and

    (b) a burst oscillator which receives the pulsed output signal and generates first and second alternating voltage bursts in response thereto, the duty cycle of the alternating bursts corresponding to the pulse repetition frequency of the pulsed output signal; and

    a power driver connected between the power supply and the light source, the power driver being responsive to the first and second alternating voltage bursts to control the power provided to the light source by the power supply such that the intensity of light energy provided by the light source varies in real time with changes in the intensity of the sound source signal.

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