Multi-standard enhanced inband data receiver
AssigneeGeneral Instrument Corporation
InventorsTony Nasuti, Joseph W. Gredone, David E. Chodelka
Life of this patent
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Abstract
A system for receiving and analyzing at least one inband user data packet within a CATV video signal. The system includes a data detector, a data processor and a memory. The data detector receives video signal samples of the data packet. The data detector includes a data slicer used to determine a threshold level based on a clock sync byte located in the data packet. The threshold level is compared to subsequent video signal samples of the data packet. The data processor determines the destination of the data packet. The memory selectively stores the data packet until it is required by the data processor.
Claims20
A system for receiving and analyzing at least one inband user data packet within a CATV video signal, the data packet including at least one clock sync byte, the system comprising:
- a data detector for receiving video signal samples of the data packet, whereby the data detector includes a data slicer for determining a threshold level based on the clock sync byte and comparing the threshold level to subsequent video signal samples of the data packet;
- a data processor for determining the destination of the data packet;
- and
- a memory for selectively storing the data packet until required by the data processor.
A system for receiving and analyzing at least one inband user data packet within a CATV video signal, the data packet including at least one clock sync byte, the system comprising:
- a sampler for sampling the CATV video signal and outputting video signal samples of the data packet;
- and
- a data slicer for receiving the video signal samples, determining a threshold level based on the clock sync byte and comparing the threshold level to subsequent video signal samples of the data packet.
Dependencies are inferred from the claim text.