公开(公告)号：US07342535B2

公开(公告)日：2008-03-11

申请号：US11399601

申请日：2006-04-07

申请人： Jong-Hoon Ann ,  Song-Hun Kim ,  Byoung-Yun Kim ,  Hye-Young Lee ,  Hyeon-Woo Lee ,  Achim Seebens ,  Tobias Scholand ,  Peter Jung ,  Admir Burnic ,  Arjang Hessamian-Alinejad

发明人： Jong-Hoon Ann ,  Song-Hun Kim ,  Byoung-Yun Kim ,  Hye-Young Lee ,  Hyeon-Woo Lee ,  Achim Seebens ,  Tobias Scholand ,  Peter Jung ,  Admir Burnic ,  Arjang Hessamian-Alinejad

IPC分类号： H01Q3/00

CPC分类号： H01Q3/26 ,  G01S3/74 ,  G06K9/0057

摘要： A beam-forming apparatus and method for improving system performance using a spatial interpolation and at least one Angle of Arrival (AoA) in a system based on regular spatial sampling is provided. The AoA is estimated using a carrier-to-interference ratio. Beam-forming angles are distributed and steered in a predefined scheme such that an identical process is applied in all directions. According to this steering, a linear system model is computed based on regular spatial sampling using regular spatial separation at beam angles. Beam-forming performance is improved by compensating for a difference between adaptive and sector-type arrays. Only the steps of computing a spatial interpolation and determining an angle range for beam-forming using at least one AoA are added. The precision of estimating an AoA and the precision of beam-forming increase without an additional antenna. Because the system is simpler than that of an adaptive beam-forming system, significant gain is obtained.

摘要翻译： 提供了一种用于基于规则空间采样在系统中使用空间插值和至少一个到达角（AoA）来提高系统性能的波束形成装置和方法。 使用载波干扰比估计AoA。 束形成角度以预定义的方案分布和转向，使得在所有方向上应用相同的过程。 根据该转向，基于规则的空间采样计算线性系统模型，使用光束角度的规则空间分离。 通过补偿自适应和扇形阵列之间的差异来提高波束形成性能。 仅使用至少一个AoA计算空间插值和确定用于波束形成的角度范围的步骤。 估计AoA的精度和波束形成的精度增加而没有额外的天线。 由于系统比自适应波束成形系统简单，所以获得了显着的增益。

公开(公告)号：US08380977B2

公开(公告)日：2013-02-19

申请号：US11704085

申请日：2007-02-07

申请人： Jae-Seung Son ,  Eun-Tae Won ,  Jong-Hoon Ann

发明人： Jae-Seung Son ,  Eun-Tae Won ,  Jong-Hoon Ann

IPC分类号： H04L29/06

CPC分类号： H04L63/0428 ,  H04L63/162 ,  H04L69/32 ,  H04L69/324 ,  H04L69/329

摘要： A peer-to-peer communication method for NFC is provided. A link-level security is started by exchanging a link-level security request and a link-level security response between an initiator terminal and a target terminal, then transmission data are encrypted at link-level security layers of the initiator terminal and the target terminal, and the encrypted data are exchanged between the initiator terminal and the target terminal. The link-level security is released by exchanging a link-level security release request and a link-level security release response between the initiator terminal and the target terminal.

摘要翻译： 提供了一种用于NFC的点对点通信方法。 通过在发起方终端和目标终端之间交换链路级安全请求和链路级安全性响应来启动链路级安全性，然后在发起方终端和目标终端的链路级安全层对传输数据进行加密 并且在发起者终端和目标终端之间交换加密数据。 通过在发起方终端和目标终端之间交换链路级安全释放请求和链路级安全释放响应来释放链路级安全性。

公开(公告)号：US07970537B2

公开(公告)日：2011-06-28

申请号：US12013145

申请日：2008-01-11

申请人： Jong-Hoon Ann ,  Jae-Seung Son ,  Eun-Tae Won

发明人： Jong-Hoon Ann ,  Jae-Seung Son ,  Eun-Tae Won

IPC分类号： G01C21/30

CPC分类号： G01C21/20 ,  H04B10/1141 ,  H04B10/116

摘要： A navigation system and a navigation method inside of a building using Visible Light Communications (VLC) are provided. The navigation system includes a map server, in which map information required to provide a navigation function is stored, for transferring the map information to each lamp, a plurality of lamps, installed in each zone inside of the building and having their respective identifiable and unique IDentifications (IDs), for receiving the map information required to provide the navigation function from the map server, and for generating a visible light signal in response to the received map information by using a VLC module, and a mobile terminal, equipped with a visible light Rx module, for being provided with the map information upon receiving the visible light signal generated from the lamp, and for displaying a map image in response to the provided map information.

摘要翻译： 提供了使用可见光通信（VLC）的建筑内部的导航系统和导航方法。 导航系统包括地图服务器，其中存储提供导航功能所需的地图信息，用于将地图信息传送到每个灯，安装在建筑物内部的每个区域中并具有各自的可识别和独特的多个灯 识别（ID），用于从地图服务器接收提供导航功能所需的地图信息，以及响应于使用VLC模块接收的地图信息产生可见光信号;以及移动终端，其配备有可见 光接收模块，用于在接收到从灯产生的可见光信号时提供地图信息，并且响应于所提供的地图信息显示地图图像。

公开(公告)号：US07889999B2

公开(公告)日：2011-02-15

申请号：US12020622

申请日：2008-01-28

申请人： Jong-Hoon Ann

发明人： Jong-Hoon Ann

IPC分类号： H04B10/00

CPC分类号： H04B10/116 ,  H04B10/1141

摘要： A method and an apparatus for correcting a color imbalance of visible light in wavelength division parallel visible light communications (VLC). The method includes the steps of: transmitting a visible light signal including information from a VLC transmitter to a VLC receiver during a preset correction unit, and setting correction bits corresponding to a basis for correcting a color imbalance by each of wavelengths of the VLC transmitter A generating of a first adjustment light corrects the color imbalance between the wavelengths from the VLC transmitter during a preset color adjustment period, and generating of a second adjustment light corrects a color imbalance between a previous correction unit and a current correction unit from the visible light communication transmitter.

摘要翻译： 一种用于校正波分分割并行可见光通信（VLC）中的可见光的颜色不平衡的方法和装置。 该方法包括以下步骤：在预设的校正单元期间将包括来自VLC发送器的信息的可见光信号发送到VLC接收机，并且设置与用于校正VLC发射器A的每个波长的色彩不平衡的基准相对应的校正位 第一调节光的产生在预设颜色调整周期期间校正来自VLC发射器的波长之间的颜色不平衡，并且产生第二调整光从可见光通信校正前一校正单元和当前校正单元之间的颜色不平衡 发射机。

公开(公告)号：US07889998B2

公开(公告)日：2011-02-15

申请号：US11974376

申请日：2007-10-12

申请人： Jae-Seung Son ,  Eun-Tae Won ,  Jong-Hoon Ann

发明人： Jae-Seung Son ,  Eun-Tae Won ,  Jong-Hoon Ann

IPC分类号： H04B10/00

CPC分类号： H04B10/672

摘要： An optical receiver for visible light communication includes a lens system for converging visible light for light communication and an optical filter for passing converged visible light to the optical receiver. A photoelectric transmission device detects data from visible light for light communication in a VLC system. An optical filter is positioned between the lens system and the photoelectric transmission device, the optical filter having a first film for transmitting visible light and a second film arranged/grown around the first film to transmit ultraviolet rays or infrared rays. A first optical detects data from visible light passing through the first film of the optical filter. A second optical detector detects the intensity of light transmitting the second film. The encoding, encoding rate or intensity of the optical transmitted signal can be adjusted in response to the detection of at least the second optical detector.

摘要翻译： 用于可见光通信的光接收机包括用于会聚用于光通信的可见光的透镜系统和用于将会聚的可见光传递到光接收器的滤光器。 光电传输装置从VLC系统中的光通信中检测来自可见光的数据。 滤光器位于透镜系统和光电传输装置之间，滤光器具有用于透射可见光的第一膜和布置/生长在第一膜周围的透射紫外线或红外线的第二膜。 第一光学器件检测通过光学滤波器的第一膜的可见光的数据。 第二光学检测器检测透射第二膜的光的强度。 可以响应于至少第二光学检测器的检测来调整光学传输信号的编码，编码速率或强度。

公开(公告)号：US08045864B2

公开(公告)日：2011-10-25

申请号：US12189364

申请日：2008-08-11

申请人： Jong-Hoon Ann ,  Jae-Seung Son ,  Eun-Tae Won

发明人： Jong-Hoon Ann ,  Jae-Seung Son ,  Eun-Tae Won

IPC分类号： H04B10/00 ,  H04B10/06

CPC分类号： H04B10/1121

摘要： Disclosed is a method for processing incoming signals of photo-detectors in a visible light communication system. The method includes: dividing symbol duration into divided durations according to an equal time interval to set the divided durations to a plurality of time slots, the symbol duration being a time required to transmit one of a symbol and a bit; receiving visible light signals through a photodiode array in a receiver; determining a gain value of each of the photodiodes during a time slot, in consideration of each photodiode area on the photodiode array during the time slot and the time slot position within the symbol duration; multiplying a gain value of each of the photodiodes by an output value of a corresponding photodiode; and summing up output values of each of the photodiodes by which the gain value has been multiplied and calculating a total of output values of the time slot.

摘要翻译： 公开了一种在可见光通信系统中处理光电检测器的输入信号的方法。 该方法包括：根据相等的时间间隔将符号持续时间划分为划分的持续时间，以将分配的持续时间设置为多个时隙，该符号持续时间是发送符号和比特之一所需的时间; 通过接收器中的光电二极管阵列接收可见光信号; 在时隙期间考虑光电二极管阵列上的每个光电二极管区域以及符号持续时间内的时隙位置来确定时隙期间每个光电二极管的增益值; 将每个光电二极管的增益值乘以相应光电二极管的输出值; 以及对增益值已经相乘的每个光电二极管的输出值进行求和，并计算该时隙的输出值的总和。

公开(公告)号：US20080181617A1

公开(公告)日：2008-07-31

申请号：US11893194

申请日：2007-08-15

申请人： Jong-Hoon Ann

发明人： Jong-Hoon Ann

IPC分类号： H04B10/00

CPC分类号： H04B10/116 ,  H04B10/1149

摘要： Disclosed is a method and an apparatus for correcting a color imbalance of visible light in wavelength division parallel visible light communications. The method includes the steps of: inverting an original signal including information by a visible light communication transmitter; transmitting the original signal including the information and an inverted signal from the visible light communication transmitter to a visible light communication receiver, receiving the original signal including the information and the inverted signal by the visible light communication receiver, reinverting the inverted signal among the received signals by the visible light communication receiver, restoring the inverted signal back to its state prior to the inversion by reinverting the inverted signal by the visible light communication receiver, and performing a diversity combination on the original signal and a restored signal.

摘要翻译： 公开了一种用于校正波分分割并行可见光通信中的可见光的颜色不平衡的方法和装置。 该方法包括以下步骤：通过可见光通信发射机反转包括信息的原始信号; 将包括信息的原始信号和来自可见光通信发射机的反相信号发送到可见光通信接收机，通过可见光通信接收机接收包括信息和反相信号的原始信号，在接收信号中重新反转反相信号 通过可见光通信接收机，通过由可见光通信接收机反转反相信号，将反相信号恢复到反相之前的状态，并对原始信号和还原信号进行分集组合。

公开(公告)号：US20080065877A1

公开(公告)日：2008-03-13

申请号：US11704085

申请日：2007-02-07

申请人： Jae-Seung Son ,  Eun-Tae Won ,  Jong-Hoon Ann

发明人： Jae-Seung Son ,  Eun-Tae Won ,  Jong-Hoon Ann

IPC分类号： H04L9/00

CPC分类号： H04L63/0428 ,  H04L63/162 ,  H04L69/32 ,  H04L69/324 ,  H04L69/329

摘要： A peer-to-peer communication method for NFC is provided. A link-level security is started by exchanging a link-level security request and a link-level security response between an initiator terminal and a target terminal, then transmission data are encrypted at link-level security layers of the initiator terminal and the target terminal, and the encrypted data are exchanged between the initiator terminal and the target terminal. The link-level security is released by exchanging a link-level security release request and a link-level security release response between the initiator terminal and the target terminal.

摘要翻译： 提供了一种用于NFC的点对点通信方法。 通过在发起方终端和目标终端之间交换链路级安全请求和链路级安全性响应来启动链路级安全性，然后在发起方终端和目标终端的链路级安全层对传输数据进行加密 并且在发起者终端和目标终端之间交换加密数据。 通过在发起方终端和目标终端之间交换链路级安全释放请求和链路级安全释放响应来释放链路级安全性。

公开(公告)号：US08326526B2

公开(公告)日：2012-12-04

申请号：US13329527

申请日：2011-12-19

申请人： Eun-Tae Won ,  Jong-Hoon Ann ,  Dae-Seok Kim ,  Noh-Gyoung Kang ,  Seung-Hoon Park ,  Jae-Seung Son

发明人： Eun-Tae Won ,  Jong-Hoon Ann ,  Dae-Seok Kim ,  Noh-Gyoung Kang ,  Seung-Hoon Park ,  Jae-Seung Son

IPC分类号： G01C21/00

CPC分类号： G01C21/20 ,  H04B10/1149 ,  H04B10/116

摘要： Method and device for exchanging messages in a VLC navigation system is provided, in which a map server generates a provision message in the form of visible light signals through all lamps in an area, using a PLC network, where a navigation service is provided, a terminal that wants to implement the navigation service among terminals that have received the provision message transmits a registration request message to the map server, the map server transmits a registration response message for the registration request message to the terminal, the terminal transmits a map request message including information about a destination to the map server, the map server transmits a map response message including information about a path to the destination to the terminal, and the terminal displays map information and the path.

摘要翻译： 提供了一种用于在VLC导航系统中交换消息的方法和设备，其中地图服务器使用在其中提供导航服务的PLC网络生成在区域中的所有灯的可见光信号的形式的提供消息， 希望在接收到提供消息的终端之间实现导航服务的终端向地图服务器发送注册请求消息，地图服务器向终端发送注册请求消息的注册响应消息，终端发送地图请求消息 包括关于目的地的信息到地图服务器，地图服务器向终端发送包括关于到目的地的路径的信息的地图响应消息，并且终端显示地图信息和路径。

公开(公告)号：US08139946B2

公开(公告)日：2012-03-20

申请号：US12351092

申请日：2009-01-09

申请人： Jong-Hoon Ann ,  Jae-Seung Son ,  Eun-Tae Won ,  Noh-Gyoung Kang ,  Seung-Hoon Park

发明人： Jong-Hoon Ann ,  Jae-Seung Son ,  Eun-Tae Won ,  Noh-Gyoung Kang ,  Seung-Hoon Park

IPC分类号： H04B10/00

CPC分类号： H04B10/116 ,  H04B10/1149

摘要： Disclosed is a method for transmitting data in a wireless visible light communication system, the method including the steps of transmitting a pilot signal for obtaining channel state information according to each channel from a transmitter to a receiver, and transmitting a pilot response signal containing channel state information according to each channel from the receiver to the transmitter; controlling, by the transmitter, a data rate according to the pilot response signal, transmitting, by the transmitter, data to the receiver, with data rate information inserted into a header and controlling, by the receiver, a data rate according to each channel by making reference to data included in the header information.

摘要翻译： 公开了一种在无线可见光通信系统中发送数据的方法，所述方法包括以下步骤：根据每个信道从发射机到接收机发送用于获得信道状态信息的导频信号，并发送包含信道状态的导频响应信号 根据每个通道从接收机到发射机的信息; 由发射机根据导频响应信号控制数据速率，由发射机向接收机发送数据，将数据速率信息插入报头，并由接收机根据每个信道控制数据速率 参考标题信息中包含的数据。