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Anti-copy system

  • US 4,644,422 A
  • Filed: 06/24/1983
  • Issued: 02/17/1987
  • Est. Priority Date: 07/22/1982
  • Status: Expired due to Fees
First Claim
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1. A system for preventing the copying of original recordings comprising:

  • means for generating a source material signal;

    means for creating a degrade signal which will degrade any source material recorded from an original recording thereof, including a pair of oscillating means and mixingmeans connected to said oscillating means for mixing the outputs of said oscillating means;

    means for combining the degrade signal with the source material signal to produce a combined signal; and

    means for recording said combined signal on said original recording.

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