Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04N
PICTORIAL COMMUNICATION, e.g. TELEVISION
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21/00
Selective content distribution, e.g. interactive television or video on demand [VOD]
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H04N21/20
Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
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H04N21/23
Processing of content or additional data; Elementary server operations; Server middleware
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H04N21/231
Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
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H04N21/23116
involving data replication, e.g. over plural servers
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