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Audio data transmission apparatus and method, audio data recording apparatus, and audio data recording medium

  • US 6,452,960 B1
  • Filed: 02/20/1998
  • Issued: 09/17/2002
  • Est. Priority Date: 03/03/1997
  • Status: Expired due to Fees
First Claim
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1. An audio data transmission apparatus for combining additional information with an audio signal, comprising:

  • gap insert position detection means for detecting a position in said audio signal where a gap can be inserted, said position corresponding to a temporal location where said audio signal has a large magnitude;

    spectrum diffusion means for spectrum-diffusing said additional information prior to combination with said audio signal to generate spectrum diffused additional information;

    dividing means for dividing said spectrum diffused additional information into a plurality of sections;

    gap insert means for inserting said gap at the insert position detected by said gap insert position detection means; and

    combine means for using said gap as a control signal for combining said plurality of sections and said audio signal.

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