Information recording device and method, and information reproducing device and method

Information recording device and method, and information reproducing device and method

  • CN 1,259,734 B
  • Filed: 11/25/1999
  • Issued: 06/16/2010
  • Est. Priority Date: 11/25/1998
  • Status: Active Grant
First Claim
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1. an information record carrier (R), be used for going up the record recorded information at information recording carrier (200), this recorded information comprises a plurality of message units (230), each message unit is implemented the compressed audio information that the variable-length compression obtains and is obtained by cutting apart original audio information, and each message unit comprises compressed audio information and heading information (241,242), it is characterized in that described information record carrier comprises:

  • Playback control information generation device (72) is used for being produced as playback and is included in the employed playback control information of compressed audio information of message unit with heading information;

    Forward location information generating apparatus (72), be used to produce the forward location information of indication position on described information recording carrier, the compressed audio information that on this position records a playback time countershaft in compressed audio information, before one first predetermined amount of time, will reset;

    The back is to positional information generation device (72), is used to produce an indication position back to positional information on described information recording carrier, records the compressed audio information that will reset behind one second predetermined amount of time on described playback time countershaft in this position;

    Pen recorder (78) is used for the playback control information that will produce, the forward location information and the back of generation of generation records described information recording carrier to positional information as heading information;

    Wherein, described message unit (230) comprises a packets of audio data (241,242,243), and this packet comprises the audio-frequency information (243) and the heading information (241,242) of described compression;

    Described heading information (241,242) comprises a data packet header (241) and a special-purpose leader (242);

    WithDescribed forward location information and back are recorded in the described special-purpose leader (242) to positional information.

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