Thin DOCSIS in-band management for interactive HFC service delivery
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United States of America Patent
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Issued Date -
Sep 16, 2004
app pub date -
Mar 13, 2003
filing date -
Mar 13, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Circuitry and processed carried out thereby are disclosed for transmitting video-on-demand and interactive service data and other service data on an MPEG multiplex and sending management and control data including conditional access EMM key data in-band in said MPEG multiplex in MPEG packets having the DOCSIS PID. Processes to send conditional access data by sending ECM messages containing control words encrypted with session keys in said MPEG multiplex and sending EMM messages containing session keys encrypted with private set top box users keys are disclosed. The EMM messages are sent in-band in MPEG packets having the DOCSIS PID to only the set top boxes that request them and which have ordered an encrypted service. A head end with routing/switching capability to route MPEG transport streams encapsulated in IP packets is also disclosed.
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