Video server

Details Video server Video server

H - Electricity

04

N

H04N 7/16 (2006.01) H04N 5/00 (2006.01) H04N 7/173 (2006.01)

Patent

CA 2135991

- 24 - Abstract Video server The video server (VS) is used in a video on demand network wherein video signals are transferred over a communication network (TSY) from said video server to terminals thereof. It includes video signal memories (VM), a server control means (SCM), a broadband switch (BS) having first ports (VP1/VPY) to which the memories (VM) are coupled, second ports (CL) coupled to the communication system (TSY) and a third port (CP) to which the server control means (SCM) is coupled. The server control means (SCM) control the transfer of the video signals from the memories (VM) and through the switch (BS) and the communication system (TSY) to the terminals. The broadband switch (BS) has a set of fourth ports (CP1/CPX) to which a set of system adaptor means (SYA1/SYAX) is coupled to adapt the video signals to a format which is compatible with the communication system. The server control means (SCM) performs the transfer of video signals firstly from the video memories (VM) to the system adaptor means (SYA1/SYAX) through the switch (BS) and then from the adaptor means to the terminals via the communication system (TSY). The system adaptor means include channel memories and adaptors to perform rate and format adaption of the video signals respectively. The channel memories and the adaptors can be directly and separately coupled to the broadband switch.

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