OPTICAL TRANSCEIVER WITH IN-BAND MANAGEMENT CHANNEL
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United States of America Patent
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Issued Date -
May 7, 2009
app pub date -
Nov 5, 2007
filing date -
Nov 5, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A supervisory signal is superimposed onto a high-speed data stream so that the number of optical transceivers needed by an optical network is reduced. The supervisory signal is superimposed onto the high-speed data stream as an in-band modulation of the data stream. To improve signal-to-noise ratio of the in-band supervisory signal, the supervisory signal is first modulated to a higher frequency before it is superimposed onto the high-speed data stream.
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