System and method for transmitting data on return path of a cable television system
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United States of America Patent
Stats
-
May 5, 2009
Grant Date -
Nov 29, 2007
app pub date -
Aug 13, 2007
filing date -
Dec 13, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A return path transmitter includes an optical signal receiver configured to receive a digital optical signal and generate therefrom a first digitized RF data stream and a sample clock. The return path transmitter further includes an RF signal receiver, coupled to the optical signal receiver, configured to receive and convert the analog RF data signal into a second digitized RF data stream of digitized RF data samples at a rate determined by the sample clock. The return path transmitter further includes a summing circuit configured to mathematically sum the first and second digitized RF data streams so as to generate a third digitized RF data stream. The return path transmitter further includes an optical transmitter configured to convert an output data stream into a serialized optical data signal for transmission over an optical fiber, the output data stream including the third digitized RF data stream.
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Family
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Cited Art Landscape
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