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公开(公告)号：US20210293999A1
公开(公告)日：2021-09-23
申请号：US16897024
申请日：2020-06-09
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sang Wook HAN , Seung Woo JEON , Sung Wook MOON , Yong Su KIM , Hyang Tag LIM , Ho Joong JUNG , Young Wook CHO
Abstract: An inverted nanocone structure of the present disclosure includes a first surface, a second surface spaced apart from the first surface by a predetermined distance and having a greater area than the first surface, and a body having an inverted cone shape between the first surface and the second surface, wherein at least one activated point defect center is provided in the body.
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2.发明申请公开(公告)号：US20200287714A1
公开(公告)日：2020-09-10
申请号：US16739526
申请日：2020-01-10
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sang Wook HAN , Sung Wook MOON , Yong Su KIM , Sang Yun LEE , Young Wook CHO , Min Sung KANG , Ji Woong CHOI
IPC: H04L9/08
Abstract: This specification discloses a quantum public-key cryptosystem. The quantum public-key cryptosystem may use two rotation operators R{circumflex over (n)}(θ) and R{circumflex over (m)}(φ) satisfying a cyclic evolution. The two rotation operators R{circumflex over (n)}(θ) and R{circumflex over (m)}(φ) do not have a commutation relation or an anti-commutation relation with each other. The commutation relation or the anti-commutation relation is established when either of the following conditions is satisfied: θ=2iπ, φ=2jπ, or {circumflex over (n)}·{circumflex over (m)}=1 (i, j=integer), and θ=(2k+1)π, φ=(2l+1)π, or {circumflex over (n)}·{circumflex over (m)}=0 (k, l=integer).
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3.发明申请公开(公告)号：US20170155499A1
公开(公告)日：2017-06-01
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: H04L7/00 , H04L9/08 , H04B10/548 , H04J14/06 , H04J14/02
CPC classification number: H04L7/0075 , H04B10/70 , H04B10/85 , H04L9/0852 , H04L9/0858
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.
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公开(公告)号：US20190278567A1
公开(公告)日：2019-09-12
申请号：US16335039
申请日：2017-09-26
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sang Wook HAN , Sung Wook MOON , Yong Su KIM , Byung Kwon PARK
Abstract: The present invention provides a random number generation system comprising: an image sensor module for outputting dark noise generated from each unit pixel region respectively that is shielded from external light as digital data; and a control unit for classifying the respective pieces of digital data output from the image sensor module, for allocating random numbers to the same using a database in which a plurality of reference values are stored for each unit pixel, and for collating the same so as to generate a first random number.
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