Apparatus and method for quantum cryptography communication
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United States of America Patent
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Feb 12, 2013
Grant Date -
Aug 19, 2010
app pub date -
Sep 2, 2008
filing date -
Sep 5, 2007
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Abstract
A quantum cryptography communication apparatus performs quantum cryptography communication between a transmitter and a receiver. The quantum cryptography communication apparatus includes first communicating unit transmitting and receiving a communication signal including relatively strong pulse light between the transmitter and the receiver, and second communicating unit transmitting and receiving a relatively weak quantum cryptography signal between the transmitter and the receiver in a period in which the communication signal is off and the attitude axis for the receiver can be adjusted to that for the transmitter by the second communicating unit.
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