Video server for video-on-demand system with controllable memories and with pause, fast-forward and rewind functions
First Claim
1. Video server for transmitting video signals to user stations in response to receipt of control signals issued by said user stations, comprising:
- a plurality of memories controlled by a plurality of memory controllers;
server control means for controlling said plurality of memory controllers based on said control signals, wherein said server control means comprises a plurality of program control modules each of which is associated with a subset of said plurality of memories and to a subset of said plurality of memory controllers and a server controller activating said program control modules to transmit video signals stored in said associated subset of memories, said program control modules operating at least one of said associated memory controllers to achieve the transmission of said video signals to user stations.
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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.
184 Citations
10 Claims
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1. Video server for transmitting video signals to user stations in response to receipt of control signals issued by said user stations, comprising:
- a plurality of memories controlled by a plurality of memory controllers;
server control means for controlling said plurality of memory controllers based on said control signals, wherein said server control means comprises a plurality of program control modules each of which is associated with a subset of said plurality of memories and to a subset of said plurality of memory controllers and a server controller activating said program control modules to transmit video signals stored in said associated subset of memories, said program control modules operating at least one of said associated memory controllers to achieve the transmission of said video signals to user stations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- a plurality of memories controlled by a plurality of memory controllers;
Specification