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Simulated AM radio

  • US 5,978,488 A
  • Filed: 09/03/1998
  • Issued: 11/02/1999
  • Est. Priority Date: 09/03/1998
  • Status: Expired due to Term
First Claim
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1. A method for simulating the tuning of an AM radio signal away from the center frequency of a station comprising the steps of:

  • (a) providing an audio program signal;

    (b) providing a first multiplication product of said audio program signal and a first gain function;

    (c) providing a distortion function of said audio program signal;

    (d) providing a second multiplication product of said distortion function of said audio program signal and a second gain function;

    (e) providing a noise signal;

    (f) providing a third multiplication product of said noise signal and a third gain function;

    (g) providing an adder for adding said first multiplication product, said second multiplication product, and said third multiplication product, whereby the output of said adder is used to output an audio signal;

    (h) providing a tuning control;

    (i) providing an audio processor, whereby said audio processor responds to said tuning control to perform the steps of;

    (i) selecting said first gain function,(ii) selecting said second gain function,(iii) selecting said third gain function.

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