Video server for video-on-demand system with controllable memories and with pause, fast-forward and rewind functions
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United States of America Patent
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Jun 18, 1996
Grant Date -
N/A
app pub date -
May 19, 1994
filing date -
May 19, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to a video server (DS) for transmitting video signals (VS) to user stations in response to the receipt of control signals issued by these user stations and including a plurality (HDA) of memories (HDASA, HDASB) which are controlled by a plurality of memory controllers (OBC, SCSIC-A/B). The memory controllers are controlled based on the control signals by a server control means (DSC, PCM1/PCMN) which includes a server controller (DSC) and a plurality of program control modules (PCM1/PCMN) each of which is associated with a subset (HDA1/HDAN) of the plurality (HDA) of memories (HDASA, HDASB) and to a subset of the plurality of memory controllers (OBC, SCSIC-A/B). This server control means is kept relatively simple if the server controller activates for each requested video signal the program control module in which associated subset of memories this video signal is stored and if this program control module, upon being activated, operates its associated memory controllers to achieve the transmission.
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