公开(公告)号：US07398021B2

公开(公告)日：2008-07-08

申请号：US11052400

申请日：2005-02-07

申请人： Hong-Seok Shin ,  Hyun-Cheol Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Hong-Seok Shin ,  Hyun-Cheol Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： H04J14/00

CPC分类号： H04J14/0282 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J2014/0253

摘要： An optical transmitter including a multi-lambda source to output injection light consisting of a plurality of injection wavelengths in channels, a circulator having a first port, a second port, and a third port, the circulator receiving the injection light at the first port, and outputting the received injection light to the second port, and further receiving signal light at the second port, and outputting the received signal light to the third port, an arrayed waveguide grating having a multiplexing port connected to the second port of the circulator, and a plurality of demultiplexing ports, spectrum-slicing injection light received from the circulator at the multiplexing port into a plurality of injection channels, and outputting the injection channels to the demultiplexing ports and further receiving and multiplexing a plurality of signal channels at the demultiplexing ports, into a signal light, and outputting the signal light to the multiplexing port, and a plurality of reflective semiconductor optical amplifiers connected to the demultiplexing ports of the arrayed waveguide grating, respectively, each of the reflective semiconductor optical amplifiers receiving an associated one of the injection channels, and amplifying the associated injection channel to generate an associated one of the signal channels.

摘要翻译： 一种光发射机，包括多λ源，以输出由通道中的多个注入波长组成的注入光，具有第一端口，第二端口和第三端口的循环器，所述循环器在第一端口处接收注入光， 并将所接收的注入光输出到第二端口，并且还在第二端口处接收信号光，并将接收到的信号光输出到第三端口;阵列波导光栅，具有连接到循环器的第二端口的多路复用端口;以及 多个解复用端口，从多路复用端口的循环器接收的频谱分片注入光分成多个注入通道，并且将注入通道输出到解复用端口，并进一步在多路分用端口处接收和复用多个信号通道， 信号光，并将信号光输出到多路复用端口，以及多个反射 分别连接到阵列波导光栅的解复用端口的半导体光放大器，反射半导体光放大器中的每一个接收相关联的一个注入通道，以及放大关联的注入通道以产生相关联的一个信号通道。

公开(公告)号：US20080131140A1

公开(公告)日：2008-06-05

申请号：US11998286

申请日：2007-11-29

申请人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Hong-Seok Shin ,  Kyung-Woo Lee ,  Sung-Bum Park ,  Yoo-Jeong Hyun

发明人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Hong-Seok Shin ,  Kyung-Woo Lee ,  Sung-Bum Park ,  Yoo-Jeong Hyun

IPC分类号： H04B10/00

CPC分类号： H04B10/1143 ,  H04B10/116

摘要： A method for communication link connection in a data transmission between devices using visible light communication (VLC) that can provide a visible indication prior to establishing a communication link between the devices. The method includes activating a VLC mode by a first VLC apparatus in order to transmit the data; scanning other apparatuses to establish a communication link with a second VLC apparatus; requesting a communication link to the second VLC apparatus in order to transmit the data; and receiving a response, indicating whether data can be received from the second VLC apparatus, and establishing communication link connection. A user can easily recognize the visual indication before the establishment of the communication link, providing an opportunity for the user to arrange the apparatus for optimal communication distance/angle from another device, and for a status of the communication.

摘要翻译： 一种在使用可见光通信（VLC）的设备之间的数据传输中的通信链路连接的方法，其可以在建立设备之间的通信链路之前提供可视指示。 该方法包括：通过第一VLC设备激活VLC模式以便发送数据; 扫描其他设备以建立与第二VLC设备的通信链路; 请求与第二VLC设备的通信链路以便发送数据; 以及接收响应，指示是否可以从第二VLC设备接收数据，以及建立通信链路连接。 用户可以在建立通信链路之前容易地识别可视指示，为用户提供机会来安排设备与另一设备的最佳通信距离/角度以及通信状态。

公开(公告)号：US20060115269A1

公开(公告)日：2006-06-01

申请号：US11195437

申请日：2005-08-02

申请人： Hong-Seok Shin ,  Du-Chang Heo ,  Chang-Sup Shim ,  Seong-Taek Hwang

发明人： Hong-Seok Shin ,  Du-Chang Heo ,  Chang-Sup Shim ,  Seong-Taek Hwang

IPC分类号： H04J14/00

CPC分类号： H04B10/2587 ,  B82Y10/00 ,  H04B10/272 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253

摘要： Disclosed is a passive optical network comprising a central office including a plurality of first reflective semiconductor optical amplifiers of a quantum-dot type, each of which generates a wavelength-seeded downstream optical signal on a downstream channel of a corresponding wavelength, a plurality of optical network units each of which includes a second reflective semiconductor optical amplifier of a multi-quantum-well type, the second reflective semiconductor optical amplifier generating a wavelength-seeded upstream optical signal on an upstream channel of a corresponding wavelength and a remote node for outputting the downstream optical signals to corresponding optical network units, and multiplexing and outputting the upstream optical signals to the central office.

摘要翻译： 公开了一种无源光网络，包括一个中心局，该中心局包括多个量子点型的第一反射半导体光放大器，每个第一反射半导体光放大器在相应波长的下游沟道上产生波长种子的下游光信号，多个光 每个网络单元包括多量子阱类型的第二反射半导体光放大器，第二反射半导体光放大器在相应波长的上行信道上生成波长种子的上游光信号，并且远端节点用于输出 下行光信号到相应的光网络单元，并将上行光信号复用并输出到中心局。

公开(公告)号：US20050276602A1

公开(公告)日：2005-12-15

申请号：US11052400

申请日：2005-02-07

申请人： Hong-Seok Shin ,  Hyun-Cheol Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Hong-Seok Shin ,  Hyun-Cheol Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： H04B10/04 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04J14/0282 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J2014/0253

摘要： An optical transmitter including a multi-lambda source to output injection light consisting of a plurality of injection wavelengths in channels, a circulator having a first port, a second port, and a third port, the circulator receiving the injection light at the first port, and outputting the received injection light to the second port, and further receiving signal light at the second port, and outputting the received signal light to the third port, an arrayed waveguide grating having a multiplexing port connected to the second port of the circulator, and a plurality of demultiplexing ports, spectrum-slicing injection light received from the circulator at the multiplexing port into a plurality of injection channels, and outputting the injection channels to the demultiplexing ports and further receiving and multiplexing a plurality of signal channels at the demultiplexing ports, into a signal light, and outputting the signal light to the multiplexing port, and a plurality of reflective semiconductor optical amplifiers connected to the demultiplexing ports of the arrayed waveguide grating, respectively, each of the reflective semiconductor optical amplifiers receiving an associated one of the injection channels, and amplifying the associated injection channel to generate an associated one of the signal channels.

摘要翻译： 一种光发射机，包括多λ源，以输出由通道中的多个注入波长组成的注入光，具有第一端口，第二端口和第三端口的循环器，所述循环器在第一端口处接收注入光， 并将所接收的注入光输出到第二端口，并且还在第二端口处接收信号光，并将接收到的信号光输出到第三端口;阵列波导光栅，具有连接到循环器的第二端口的多路复用端口;以及 多个解复用端口，从多路复用端口的循环器接收的频谱分片注入光分成多个注入通道，并将注入通道输出到解复用端口，并进一步在解复用端口接收和复用多个信号通道， 信号光，并将信号光输出到多路复用端口，以及多个反射 分别连接到阵列波导光栅的解复用端口的半导体光放大器，反射半导体光放大器中的每一个接收相关联的一个注入通道，以及放大关联的注入通道以产生相关联的一个信号通道。

公开(公告)号：US06972895B2

公开(公告)日：2005-12-06

申请号：US10453098

申请日：2003-06-03

申请人： Seong-Taek Hwang ,  Hong-Seok Shin ,  Byung-Chang Kang

发明人： Seong-Taek Hwang ,  Hong-Seok Shin ,  Byung-Chang Kang

IPC分类号： H01S3/06 ,  G02B6/00 ,  H01S3/0933 ,  H01S3/094 ,  H01S3/13 ,  H04B10/12

CPC分类号： H01S3/094003 ,  H01S3/094011 ,  H01S3/094023 ,  H01S3/1301

摘要： An optical fiber amplifier is disclosed for amplifying an input optical signal in the long wavelength band. The amplifier include first and second pumping light sources, a photo detector for detecting the intensity of the input optical signal, an erbium-doped optical fiber, and a controller. The optical fiber is brought to a first-pumped state by the first pumping light output from the first pumping light source. This generates an amplified spontaneous emission in the short wavelength band. The optical fiber is brought to a second-pumped state by the amplified spontaneous emission and outputs an induced emission light in the long wavelength band. The second pumping light source outputs a second pumping light in the same wavelength band as the amplified spontaneous emission, while controlling the intensity of the second pumping light by an output control signal, thereby controlling the intensity of the second-pumped state of the optical fiber. The controller calculates the amount of optical intensity loss and the number of channels of the input optical signal, based on the detected optical intensity, and transmits the output control signal to the second pumping light source for compensating the loss of the input optical signal.

摘要翻译： 公开了用于放大长波段的输入光信号的光纤放大器。 放大器包括第一和第二泵浦光源，用于检测输入光信号的强度的光电检测器，掺铒光纤和控制器。 通过从第一泵浦光源输出的第一泵浦光使光纤达到第一泵浦状态。 这会在短波段产生放大的自发发射。 通过放大的自发发射使光纤处于第二泵浦状态，并输出长波长带中的感应发射光。 第二泵浦光源输出与放大的自发发射相同的波长带中的第二泵浦光，同时通过输出控制信号控制第二泵浦光的强度，由此控制光纤的第二泵浦状态的强度 。 控制器基于检测到的光强度计算光强度损失量和输入光信号的数量，并将输出控制信号发送到第二泵浦光源，以补偿输入光信号的损耗。

公开(公告)号：US08452188B2

公开(公告)日：2013-05-28

申请号：US12707381

申请日：2010-02-17

申请人： Hong-Seok Shin ,  Dae-Kwang Jung ,  Jeong-Seok Choi ,  Kyung-Woo Lee ,  Sung-Bum Park ,  Jae-Hun Cho

发明人： Hong-Seok Shin ,  Dae-Kwang Jung ,  Jeong-Seok Choi ,  Kyung-Woo Lee ,  Sung-Bum Park ,  Jae-Hun Cho

IPC分类号： H04B10/00 ,  H04B10/116

CPC分类号： H04B10/116 ,  H04B10/1149 ,  H04W72/0406 ,  H04W74/0866 ,  H05B37/0272

摘要： A Visible Light Communication (VLC) method in a VLC terminal, in which the VLC terminal requests initial access to an Access Point (AP) on a selected mini-slot among a plurality of mini-slots constituting a control slot, based on control information in a frame, sends an association request to the AP on an allocated uplink time slot, if the uplink time slot allocated to correspond to the selected mini-slot exists in control information in a next frame, and transmits data at a data rate appointed to the VLC terminal included in control information in the current frame using an association Identifier (ID) included in a response received in reply to the association request and the allocated uplink time slot.

摘要翻译： VLC终端中的可见光通信（VLC）方法，其中VLC终端基于控制信息请求在构成控制时隙的多个微时隙中的所选小时隙上的接入点（AP）的初始接入 如果在下一帧中的控制信息中存在分配给所选择的小时隙的上行链路时隙，则在所分配的上行链路时隙中向AP发送关联请求，并以指定的数据速率发送数据 使用包括在响应于关联请求而接收的响应中的关联标识符（ID）和所分配的上行链路时隙，在当前帧中包含在控制信息中的VLC终端。

公开(公告)号：US08320768B2

公开(公告)日：2012-11-27

申请号：US12217550

申请日：2008-07-07

申请人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Jeong-Seok Choi ,  Hong-Seok Shin ,  Kyung-Woo Lee ,  Sung-Bum Park ,  Yoo-Jeong Hyun ,  Seong Hoon Hyun, legal representative

发明人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Jeong-Seok Choi ,  Hong-Seok Shin ,  Kyung-Woo Lee ,  Sung-Bum Park ,  Yoo-Jeong Hyun

IPC分类号： H04B10/00

CPC分类号： H04B10/1143 ,  H04B10/116

摘要： A system and method for continuing a communication link while maintaining visibility in visible light communication. A frame is transmitted by a sender for establishing a communication link before data transmission to a receiver by a sender. A receiver sends a response frame that reports on establishment of the communication link prior to data transmission by the sender. A data frame containing information is transmitted by the sender to the receiver. An acknowledgment frame is transmitted to the sender in response to the data frame. A disconnect frame is transmitted by the sender which is acknowledged by the receiver. A visible sequence is transmitted during a time period when the sender and the receiver do not transmit respective frames for communication to maintain visibility between two devices that may be communicating otherwise by, for example, infrared communication.

摘要翻译： 一种用于在保持可见光通信中的可视性的同时继续通信链路的系统和方法。 由发送者发送一帧，以便在由发送者向接收者发送数据之前建立通信链路。 接收器发送响应帧，该响应帧在发送者发送数据之前报告建立通信链路。 包含信息的数据帧由发送器发送到接收器。 响应于数据帧，确认帧被发送到发送器。 由接收者确认的发送方发送断开帧。 在发送方和接收方不发送用于通信的各个帧的时间段期间发送可见序列，以保持可能通过例如红外通信而通信的两个设备之间的可见性。

公开(公告)号：US20110176803A1

公开(公告)日：2011-07-21

申请号：US13008455

申请日：2011-01-18

申请人： Ki-Uk Song ,  Dae-Kwang Jung ,  Jeong-Seok Choi ,  Hong-Seok Shin ,  Kyung-Woo Lee ,  Sung-Bum Park ,  Jae-Gwang Shim

发明人： Ki-Uk Song ,  Dae-Kwang Jung ,  Jeong-Seok Choi ,  Hong-Seok Shin ,  Kyung-Woo Lee ,  Sung-Bum Park ,  Jae-Gwang Shim

IPC分类号： H04B10/02

CPC分类号： H04B10/116 ,  H04B10/1149

摘要： A system for performing indoor positioning using a Light Emitting Diode (LED) lighting unit is provided. The system includes the LED lighting unit for determining whether transmission packet data exists in a frame to be transmitted, modulating the transmission packet data in accordance with a predetermined method in order to maintain a uniform brightness of the LED lighting unit when the transmission packet data exists, and transmitting the frame including the modulated transmission packet data. The system also includes a mobile terminal for receiving the frame, demodulating the modulated transmission packet data to determine the transmission packet data, and performing indoor positioning by using the demodulated transmission packet data and information included in the frame.

摘要翻译： 提供了一种使用发光二极管（LED）照明单元执行室内定位的系统。 该系统包括用于确定发送分组数据是否存在于要发送的帧中的LED照明单元，根据预定方法调制发送分组数据，以便当发送分组数据存在时保持LED照明单元的均匀亮度 并且发送包括经调制的发送分组数据的帧。 该系统还包括用于接收帧的移动终端，解调调制的传输分组数据以确定传输分组数据，并且通过使用解调的传输分组数据和包括在帧中的信息来执行室内定位。

公开(公告)号：US20110170872A1

公开(公告)日：2011-07-14

申请号：US12987479

申请日：2011-01-10

申请人： Hong-Seok Shin ,  Dae-Kwang Jung ,  Jeong-Seok Choi ,  Kyung-Woo Lee ,  Sung-Bum Park ,  Ki-Uk Song

发明人： Hong-Seok Shin ,  Dae-Kwang Jung ,  Jeong-Seok Choi ,  Kyung-Woo Lee ,  Sung-Bum Park ,  Ki-Uk Song

IPC分类号： H04J14/00 ,  H04J14/08

CPC分类号： H04B10/116 ,  H04B10/1149 ,  H04J13/00 ,  H04L7/0075

摘要： An apparatus and a method for providing synchronized data by using visible light communication includes, receiving a synchronization channel from a mobile communication base station using a specific mobile communication network, by a Light Emitting Diode (LED) lighting; analyzing the received synchronization channel, and extracting a synchronization signal for synchronizing the LED lighting with at least one LED lighting adjacent to the LED lighting; selecting a specific time slot of the synchronization signal based on IDentifications (IDs) of the LED lightings; and including a data frame of the LED lighting in the specific time slot, and transmitting the specific time slot, which includes the data frame of the LED lighting, to a mobile terminal.

摘要翻译： 通过使用可见光通信来提供同步数据的装置和方法包括：通过发光二极管（LED）照明从具有移动通信网络的移动通信基站接收同步信道; 分析所接收的同步信道，以及提取用于使所述LED照明与与所述LED照明相邻的至少一个LED照明同步的同步信号; 基于LED照明的识别（ID）选择同步信号的特定时隙; 并且在特定时隙中包括LED照明的数据帧，并将包括LED照明的数据帧的特定时隙发送到移动终端。

公开(公告)号：US20110072174A1

公开(公告)日：2011-03-24

申请号：US12884797

申请日：2010-09-17

申请人： Jeong-Seok CHOI ,  Dae-Kwang Jung ,  Hong-Seok Shin ,  Kyung-Woo Lee ,  Sung-Bum Park ,  Ki-Uk Song

发明人： Jeong-Seok CHOI ,  Dae-Kwang Jung ,  Hong-Seok Shin ,  Kyung-Woo Lee ,  Sung-Bum Park ,  Ki-Uk Song

IPC分类号： G06F3/00 ,  G06F13/42

CPC分类号： H04L1/1835 ,  H04L1/1874

摘要： An apparatus and method for transmitting and receiving data in one-to-one communication are provided. A first buffer for temporarily storing file data and a second buffer for temporarily storing message data are connected to a data transmitter for transmitting data and a data receiver for receiving data, respectively or vice versa, according to a request for data transmission or reception. The buffer for storing file data and the buffer for storing message data are differently constructed, thereby reducing the waste of memories of the buffers and achieving the miniaturization and high-speed data transmission of a portable terminal device.

摘要翻译： 提供一种用于一对一通信中发送和接收数据的装置和方法。 用于临时存储文件数据的第一缓冲器和用于临时存储消息数据的第二缓冲器根据对数据传输或接收的请求分别连接到用于发送数据的数据发送器和用于接收数据的数据接收器，反之亦然。 用于存储文件数据的缓冲器和用于存储消息数据的缓冲器被不同地构造，从而减少了缓冲器的存储器的浪费并实现了便携式终端设备的小型化和高速数据传输。