Method and apparatus for broadcasting data with access control
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United States of America Patent
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Oct 29, 2002
Grant Date -
N/A
app pub date -
Apr 16, 1999
filing date -
Apr 16, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A data broadcasting system is disclosed. The data broadcasting system operates by receiving source material from a number of different sources. The source material is processed by performing adding error correction encoding and in some cases, encryption. The source material from the different sources is then multiplexed together and broadcast on a broadcast medium. The multiplexed digital broadcast is received by a plurality of receiver systems. The receiver systems demultiplex the multiplexed digital stream to obtain desired digital streams. The desired streams are then decrypted if necessary.
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