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Optical disk recording device for producing disks adapted for direct access reproduction and a direct access reproducing method thereof

  • US 6,694,089 B2
  • Filed: 12/09/1998
  • Issued: 02/17/2004
  • Est. Priority Date: 12/31/1997
  • Status: Expired due to Fees
First Claim
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1. An optical disk recording device comprising:

  • an audio encoder encoding audio data to be recorded on an optical disk;

    a video encoder encoding video data to be recorded on the optical disk;

    a mixer mixing the outputs of the audio and video encoders and outputting data to be recorded on the optical disk;

    a memory prestoring a plurality of pictures;

    a switch selectively selecting one of the outputs of the mixer and the memory;

    a channel encoder channel-encoding the output of the switch and outputting bit streams;

    a laser driver driving a light source of an optical pickup according to the bit streams received from the channel encoder, and recording the bit streams on the optical disk;

    a random number generator generating random numbers;

    a timer generating an interrupt signal upon passage of a preset time unit; and

    a microcontroller that;

    sets a direct access unit time in the timer;

    activates the timer when data starts to be recorded on the disk;

    stores a current recording location of the disk as a reproduction starting address upon generation of the interrupt signal;

    sequentially reads one of the plurality of pictures based on a random number from the random number generator;

    records the picture as a choice menu on the optical disk after the data has been completely recorded on the disk;

    generates a direct access table in which reproduction starting addresses are cross-referenced with the recording locations of the choice menus on the disk; and

    records the direct access table at a specific area on the disk.

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