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Apparatus for translating sound into a visual display

  • US 4,376,404 A
  • Filed: 10/23/1980
  • Issued: 03/15/1983
  • Est. Priority Date: 10/23/1980
  • Status: Expired due to Term
First Claim
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1. Apparatus for translating sound into a visual display, said sound comprising a band of frequencies over which appear the rhythmic tones, said apparatus comprising:

  • (a) means for producing audio signals;

    (b) filter means responsive to said audio signals for advancing signals of the frequencies of the band over which appear the rhythmic tones;

    (c) pulse forming means connected to said filter means and responsive to said signals of the frequencies of the band over which appear the rhythmic tones for producing pulse signals representative of the beat of the rhythmic tones;

    (d) visual means; and

    (e) circuit means responsive to said pulse signals representative of the beat of the rhythmic tones and counting said pulse signals within timing periods, the respective counts of the number of pulse signals counted within the respective timing periods producing output voltage levels which are proportional to the beat of the rhythmic tones for varying said visual means in rhythm with said rhythmic tones.

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