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Audio/video file server including decompression/playback means

  • US 5,262,875 A
  • Filed: 04/30/1992
  • Issued: 11/16/1993
  • Est. Priority Date: 04/30/1992
  • Status: Expired due to Term
First Claim
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1. An audio/video file server for decompressing and distributing selected audio/video program information stored in a compressed digital format within the file server to one or more external playback stations for real-time viewing by users at those playback stations, the audio/video file server comprising:

  • storage means for storing compressed digital audio/video program information;

    transceiver means, connected to the storage means, for receiving compressed digital audio/video program information from an external source over a time period that is less than a real time period required to view the audio/video program information to thereby update the compressed digital audio/video program information stored in the storage means;

    a plurality of playback units, each associated with an external playback line and an external playback station and each including decompression means, for receiving selected compressed digital audio/video program information stored in the storage means, for decompressing the selected compressed digital audio/video program information received from the storage means, and for playing the decompressed selected audio/video program information in real time over the associated playback line to the associated playback station;

    network interface means, connected to the storage means, transceiver means, playback units, and plurality of playback stations, for receiving playback requests from the plurality of playback stations; and

    processing means, connected to the storage means, transceiver means, playback units, and network interface means, the processing means being responsive to the network interface means, following receipt of a playback request, for controlling the associated playback unit to play the decompressed selected audio/video program information in real time.

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