公开(公告)号：US10142033B2

公开(公告)日：2018-11-27

申请号：US15357424

申请日：2016-11-21

Applicant: Korea Institute of Science and Technology

Inventor： Sang Wook Han ,  Sung Wook Moon ,  Yong Su Kim ,  Min Ki Woo

IPC: H04B10/70 ,  H04B10/85 ,  H04L9/08 ,  H04L7/00

Abstract: Disclosed is a communication apparatus including a synchronization signal detector configured to detect a synchronization signal received from other communication apparatus coupled to the communication apparatus, wherein the other communication apparatus sends a quantum signal generated by a first light source to the communication apparatus, and a second light source configured to generate a decoy signal to be added to a quantum signal that is to be sent to the other communication apparatus according to a result of the detection of the synchronization signal.