Apparatus for Insertion of Local Signals into a CATV Output
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United States of America Patent
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Issued Date -
Sep 27, 2012
app pub date -
Feb 6, 2012
filing date -
Mar 21, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Apparatus for switching and combining based on external signaling is provided wherein a locally generated modulated carrier (or carriers) is inserted into a CATV system between the cable head end and video decoding/rendering device without requiring unused channels or the loss of any incoming services. An RF switch is controlled by a switch control processor based on knowledge of the video decoding/rendering device current tuning requirements to select between the full spectrum coming from the CATV system the locally generated and inserted channel. Current tuning requirements for the attached video decoding/rendering device may be input to the switch control processor from the video decoding/rendering device itself or from a separate device with knowledge of the current service requirements.
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