Device and method for transmitting optical data signals
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United States of America Patent
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Dec 4, 2012
Grant Date -
Oct 8, 2009
app pub date -
Apr 3, 2009
filing date -
Apr 4, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed are a device and a method for transmitting an optical data signal over an optical transmission channel, comprising a differential phase shift keying unit for differential phase shift keying of at least one serial data stream to generate a differential phase shift keying coded data stream; an amplitude shift keying unit for amplitude coding of at least two further serial data streams that can be selectively activated to generate an amplitude shift keying coded data stream; and a modulation unit for generating an optical data signal in accordance with a control signal that is, formed from the generated differential phase shift keying coded data stream and from the generated amplitude shift keying coded data stream.
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