Method and apparatus for cross-connection of video signals
First Claim
1. A switched telecommunication access system comprising:
- a video source;
a switched multicasting station connected to said video source; and
a plurality of display devices, connected to said switched multicasting station, for displaying video presentations selected by a user;
wherein said switched multicasting station receives only a single copy of each video presentation selected by at least one of the plurality of display devices even if more than one of the plurality of display devices selected same video presentation, said switched multicasting station transmitting appropriate video presentations to appropriate ones of said plurality of display devices including multicasting the same video presentation to the more than one of the plurality of display devices that selected the same video presentation.
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Abstract
A switched telecommunication access system for providing video data to gateway devices. The switched telecommunication access system includes a switched multicasting station for transmitting video data in response to receiving a video data request signal; and a plurality of gateway devices coupled to the switched multicasting station, the gateway devices sending video data request signals to the switched multicasting station and receiving video data from the switched multicasting station, at least one gateway device of the plurality of gateway devices including a controller for sending a video data request signal to the switched multicasting station and for routing video data received from the switched multicasting station in response to the video data request signal; and a plurality of video decoders coupled to the controller for decoding the video data received from the switched multicasting station; where one stream of video data representing a video program on a particular channel is sent from the switched multicasting station to one gateway device of the plurality of gateway devices even when the video program on the particular channel is requested for display on more than one display device coupled to the one gateway device.
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Citations
19 Claims
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1. A switched telecommunication access system comprising:
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a video source;
a switched multicasting station connected to said video source; and
a plurality of display devices, connected to said switched multicasting station, for displaying video presentations selected by a user;
wherein said switched multicasting station receives only a single copy of each video presentation selected by at least one of the plurality of display devices even if more than one of the plurality of display devices selected same video presentation, said switched multicasting station transmitting appropriate video presentations to appropriate ones of said plurality of display devices including multicasting the same video presentation to the more than one of the plurality of display devices that selected the same video presentation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19)
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16. A switched telecommunication access system comprising:
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a video source;
a switched multicasting station connected to said video source;
a plurality of gateway devices, each of said gateway devices connected to said switched multicasting station; and
a plurality of display devices, each display device connected to one of said plurality of gateway device, for displaying video presentations selected by a user;
wherein said switched multicasting station receives only a single copy of each video presentation and multicasts a single copy of each video presentation to each of said gateway devices that have display devices connected thereto that have selected the video presentation, each said gateway device transmitting appropriate video presentations to appropriate ones of said plurality of display devices connected thereto including multicasting the same video presentation to the more than one of said plurality of display devices that selected the same video presentation.
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Specification