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公开(公告)号：US11200875B2
公开(公告)日：2021-12-14
申请号：US16240087
申请日：2019-01-04
发明人： Do Yeol Ahn
IPC分类号： G10K11/162
摘要： A method of shielding acoustic wave, which is capable of completely shielding sound while reducing consumption of a shielding material is provided. The method of shielding acoustic wave, includes covering an object to be shielded with a first shielding material so that a lower portion of the object to be shielded is opened, covering an upper portion of the first shielding material by using a second shielding material which is an acoustic wave meta material having same absolute value but negative sign in density and bulk modulus comparing to the first shielding material, and covering the second shielding material with a third shielding material.
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公开(公告)号：US11585940B2
公开(公告)日：2023-02-21
申请号：US17141660
申请日：2021-01-05
发明人： Do Yeol Ahn
摘要： A method of measuring a distance to a satellite, which is performed by an electronic device, according to an exemplary embodiment of the present invention, the method comprises receiving a linearly polarized photon from and angular momentum per unit mass of the satellite the satellite; measuring an amount of rotation of the polarized photon, the rotation being induced by a space-time warpage due to gravity; and calculating a distance to the satellite by using the rotation amount of the polarized photon and the angular momentum per unit mass of the satellite. The distance to the satellite may be calculated by the following equation, sin Θ ( r ) ≅ - l obs rr s 1 - r s r , wherein ‘2Θ’ is the rotation amount of polarized photon, ‘lobs’ is the angular momentum per unit mass of the satellite, ‘r’ is the distance to the satellite, and ‘rs’ is the Schwarzschild radius of the Earth.
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3.发明申请公开(公告)号：US20170324551A1
公开(公告)日：2017-11-09
申请号：US15655323
申请日：2017-07-20
发明人： Do Yeol Ahn
CPC分类号： H04L9/0852 , G06Q20/12 , G06Q20/30 , G06Q20/3823 , G06Q20/401 , G06Q2220/00 , H04L9/0662 , H04L9/0855 , H04L9/0872 , H04L9/14 , H04L9/3226 , H04L63/08 , H04L2209/80 , H04L2463/102
摘要： Disclosed herein are technologies regarding a communication device and server which are capable of cryptographic communication based on quantum cryptography. A communication device for quantum cryptography authentication includes: an optical communication unit configured to receive a series of first quantum signals generated by passing through a first quantum filter of the communication device; a quantum signal generation unit configured to generate the first quantum signals by setting up the first quantum filter in a reception path for a series of second quantum signals generated and sent by a server; and a processor configured to select the setup of the first quantum filter based on a series of randomly generated first quantum states, and to control the quantum signal generation unit to generate the first quantum signals by using the first quantum filter.
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4.发明申请公开(公告)号：US20170103747A1
公开(公告)日：2017-04-13
申请号：US15385343
申请日：2016-12-20
发明人： Do Yeol Ahn
IPC分类号： G10K11/26 , G10K11/172
CPC分类号： G10K11/26 , G10K11/162 , G10K11/172 , G10K15/00
摘要： Disclosed herein are a method and device for cloaking an acoustic wave. A method for cloaking an acoustic wave according to an embodiment of the present invention includes: obtaining a target characteristic of a meta-material based on a correlation between an acoustic propagation mathematical model predetermined for the propagation of an acoustic wave and an electromagnetic wave mathematical model predetermined for an electromagnetic wave; arranging scattering media having a predetermined media density to have spatial periodicity so that the obtained target characteristic is achieved; and blocking a region including a target object from an acoustic wave by disposing the meta-material including the scattering media arranged to have spatial periodicity, to surround the region.
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公开(公告)号：US20170098440A1
公开(公告)日：2017-04-06
申请号：US15383824
申请日：2016-12-19
发明人： Do Yeol Ahn
IPC分类号： G10K11/162 , G06F17/16 , G06F17/11
CPC分类号： G10K11/162 , G06F17/11 , G06F17/16 , G10K15/00
摘要： Disclosed herein are a method and device for cloaking an acoustic wave. A method for cloaking an acoustic wave according to an embodiment of the present invention includes: transforming an acoustic propagation mathematical model, predetermined for the propagation of an acoustic wave, into an acoustic wave cloaking mathematical model corresponding to an electromagnetic wave mathematical model predetermined for an electromagnetic wave and including a time variable for time dependency, based on a correlation between the acoustic propagation mathematical model and the electromagnetic wave mathematical model; obtaining a target characteristic of a meta-material by using the acoustic wave cloaking mathematical model; and blocking a region including a target object, from an acoustic wave by disposing the meta-material having the obtained target characteristic to surround the region.
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公开(公告)号：US20160298935A1
公开(公告)日：2016-10-13
申请号：US15094350
申请日：2016-04-08
发明人： Do Yeol Ahn , Yong Yoon Lee
CPC分类号： F41H3/00 , H01Q1/42 , H01Q15/0086
摘要： A cloaking apparatus and method are disclosed herein. The cloaking apparatus for cloaking a target object using meta-material includes a compensation unit, and a cloaking cell. The compensation unit is disposed in a second space surrounding part of a first space including the target object, and is composed of a first meta-material having a predetermined negative refractive index. The cloaking shell is configured to surround part of the compensation unit, and is composed of a second meta-material. The negative refractive index may be a negative refractive index that is adapted to cloak the target object by compensating for the positive refractive index of the first space.
摘要翻译： 本文公开了一种隐形装置和方法。 用于使用超材料掩盖目标物体的隐形装置包括补偿单元和隐形单元。 补偿单元设置在包括目标物体的第一空间的周围的第二空间中，并且由具有预定负折射率的第一超临界材料构成。 隐形外壳被配置为围绕补偿单元的一部分，并且由第二超材料构成。 负折射率可以是负折射率，其适于通过补偿第一空间的正折射率来掩盖目标物体。
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公开(公告)号：US10133959B2
公开(公告)日：2018-11-20
申请号：US15293460
申请日：2016-10-14
发明人： Do Yeol Ahn
摘要： Disclosed are a quantum system-based image pattern recognition computation apparatus and method for machine vision and a quantum system-based machine vision apparatus. The computation apparatus recognizes patterns between images in machine vision by using a quantum system. The computation apparatus includes a modeling unit and an interpretation unit. The modeling unit sets up an objective function based on the similarity between a first pattern derived from the relationships between points of interests of a first image and a second pattern derived from the relationships between points of interests of a second image. The interpretation unit finds an optimum first pattern and an optimum second pattern, in which the similarity between the first pattern and the second pattern is optimized, by interpreting a final quantum state obtained through an adiabatic evolution process of the quantum system in which the objective function is optimized.
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8.发明申请公开(公告)号：US20170324552A1
公开(公告)日：2017-11-09
申请号：US15655420
申请日：2017-07-20
发明人： Do Yeol Ahn
CPC分类号： H04L9/0852 , G06Q20/382 , G06Q20/401 , H04B10/70 , H04L9/0662 , H04L9/0855 , H04L9/0858 , H04L9/0872 , H04L9/14 , H04L9/3226 , H04L2209/80
摘要： Disclosed herein are technologies regarding a communication device and server which are capable of cryptographic communication based on quantum cryptography. The communication device includes: a quantum signal generation unit configured to generate a series of first quantum signals by using a first quantum filter; an optical transmission unit configured to send the series of first quantum signals to a server; and a processor configured to select the first quantum filter based on a series of randomly generated first quantum states, and to control the quantum signal generation unit to generate the series of first quantum signals by using the first quantum filter.
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公开(公告)号：US11493307B2
公开(公告)日：2022-11-08
申请号：US15931007
申请日：2020-05-13
发明人： Do Yeol Ahn , Yong Yoon Lee
摘要： A cloaking apparatus and method are disclosed herein. The cloaking apparatus for cloaking a target object using meta-material includes a compensation unit, and a cloaking cell. The compensation unit is disposed in a second space surrounding part of a first space including the target object, and is composed of a first meta-material having a predetermined negative refractive index. The cloaking shell is configured to surround part of the compensation unit, and is composed of a second meta-material. The negative refractive index may be a negative refractive index that is adapted to cloak the target object by compensating for the positive refractive index of the first space.
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10.发明授权公开(公告)号：US10468011B2
公开(公告)日：2019-11-05
申请号：US15385343
申请日：2016-12-20
发明人： Do Yeol Ahn
IPC分类号： G10K11/26 , G10K11/172
摘要： Disclosed herein are a method and device for cloaking an acoustic wave. A method for cloaking an acoustic wave according to an embodiment of the present invention includes: obtaining a target characteristic of a meta-material based on a correlation between an acoustic propagation mathematical model predetermined for the propagation of an acoustic wave and an electromagnetic wave mathematical model predetermined for an electromagnetic wave; arranging scattering media having a predetermined media density to have spatial periodicity so that the obtained target characteristic is achieved; and blocking a region including a target object from an acoustic wave by disposing the meta-material including the scattering media arranged to have spatial periodicity, to surround the region.
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