Laser communication system
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United States of America Patent
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Apr 1, 2014
Grant Date -
May 2, 2013
app pub date -
Nov 2, 2011
filing date -
Nov 2, 2011
priority date (Note) -
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Abstract
A laser communication system and method are disclosed. The laser communication system includes a laser receiver system to receive a frequency-shift keyed (FSK) optical signal encoded with a plurality of data signals. The laser receiver system including an FSK differential detection system that includes a plurality of differential detection filters that can each receive the FSK optical signal and generate an output. The FSK differential detection system can demodulate the FSK optical signal into a multi-bit digital code corresponding to a frequency of the FSK optical signal based on the output of each of the plurality of differential detection filters.
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