| 摘要 |
A network interface device connectable to a network, the device being arranged to receive a digital video data stream of a first resolution and, substantially in real time, to launch data packets representing the digital video data stream onto the network, comprises: a video generator to produce from the video data stream of the first resolution a video data stream of a second, lower resolution; and a packetiser operable: to format the video data stream of the second resolution into data packets to be launched onto the network; and to format at least that part of the video data stream of the first resolution which is not represented by the video data stream of the second resolution into data packets to be launched onto the network.
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