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Methods for decoding watermark data from audio, and controlling audio devices in accordance therewith

  • US 6,587,821 B1
  • Filed: 11/17/1999
  • Issued: 07/01/2003
  • Est. Priority Date: 11/18/1993
  • Status: Expired due to Fees
First Claim
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1. A method of processing audio to decode auxiliary control information encoded therein, the audio being represented by primary data, the auxiliary control information being included with plural-bit auxiliary data, the method comprising:

  • decoding the auxiliary control information from the primary data; and

    controlling an audio device in accordance with the decoded auxiliary control information, wherein the auxiliary control information includes an instruction for controlling use of the audio, and an index to a data enabling additional control of the audio.

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