| 摘要 |
A new method and system for delivering data over a network to a large numbe r of clients, which may be suitable for building large-scale Video-on-Demand (VOD) systems. In current VOD systems, the client may suffer from a long latency before starting to receive the requested data that is capable of providing sufficie nt interactive functions, or the reverse, without significantly increasing the network load . The method utilizes two groups of data streams, one responsible for minimizing latency while the other one provides the required interactive functions. In the anti-latency data group, uniform, non-uniform or hierarchical staggered stream intervals may be used. The system may have a relatively small startup latency while users may enjoy mos t of the interactive functions that are typical of video recorders. Furthermore, the method and system may also be able to maintain the number of data streams, or the bandwidth, required.
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