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Method and system for broadcasting and receiving audio information and associated audio indexes

  • US 6,600,908 B1
  • Filed: 02/02/2000
  • Issued: 07/29/2003
  • Est. Priority Date: 02/04/1999
  • Status: Expired due to Fees
First Claim
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1. A radio receiver for receiving radio frequency signals modulated by analog audio material and digital information, said digital information containing a set of compressed audio indexes and a set of compressed audio information segments, said indexes being used by a user of said radio receiver to select said information segments, said radio receiver allowing said user to select, using an input device, one of said set of audio indexes, said set of audio information segments and said analog audio material to be played by a speaker, said radio receiver comprising:

  • a first demodulator for deriving said analog audio material from said radio frequency signals;

    a second demodulator for deriving said digital information from said radio frequency signals;

    a selector coupled to said second demodulator for selecting at least one member of said set of audio indexes and said set of audio information segments from said demodulated digital information;

    a memory for storing a value associating at least a member of said set of audio indexes with at least a member of said set of audio information segments;

    an audio decompressor coupled to said selector for decompressing compressed digital data to its uncompressed form;

    a digital to analog converter coupled to said decompressor for converting digital material to analog signals;

    a signal switch coupled to said digital to analog converter and said first demodulator for selectively connecting said analog audio material and said analog signals to said speaker; and

    a control logic, coupled to said memory and said input device, for controlling said selector and said signal switch in response to a selection by said user.

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