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System and process for delivering digital data on demand

  • US 5,928,327 A
  • Filed: 08/08/1996
  • Issued: 07/27/1999
  • Est. Priority Date: 08/08/1996
  • Status: Expired due to Term
First Claim
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1. A video server system for servicing video clients, comprising:

  • a mass storage module configured to store a plurality of video selections;

    a delivery module having a SCSI interface operating in a target mode thereby emulating a SCSI device, the delivery module having one or more processing modules, each for processing video data for delivery to a video client wherein the delivery module is programmed for receiving video data over the SCSI interface, buffering the received video data and delivering the buffered video data to a client,the delivery module further including a first processor for controlling the transfers of video data to the one or more processing modules; and

    a central control module having a first SCSI interface coupled to the mass storage module and a second SCSI interface coupled to the delivery module, the central control module programmed for receiving video control commands from a client and controlling the playback of the video selections responsive to the received control commands,the central control module further including;

    at least one memory buffer for receiving video data from the mass storage module and for buffering video data prior to transfer to the delivery module, and a second processor for controlling the transfer of video data from the mass storage module to the at least one memory buffer and from the at least one memory buffer to the delivery module.

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