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Controlled oscillator having random variable frequency

  • US 4,684,903 A
  • Filed: 04/30/1984
  • Issued: 08/04/1987
  • Est. Priority Date: 09/22/1980
  • Status: Expired due to Term
First Claim
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1. Apparatus for generating an oscillatory output signal, comprising:

  • an oscillator having means associated therewith for controlling and varying the frequency of said oscillatory output signal in response to variations of an oscillator input control signal; and

    means for generating said oscillator input control signal, comprising;

    a binary random number generator generating a sequence of pulses, V1, having a constant magnitude and randomly varying polarity;

    means for operating on V1 according to the algorithm ##EQU11## wherein n is a positive interger; and

    means for scaling the magnitude of Vn+1 to form said oscillator input control signal.

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