公开(公告)号：US08866836B2

公开(公告)日：2014-10-21

申请号：US12608555

申请日：2009-10-29

申请人： Kyung-Woo Lee ,  Yun-Je Oh ,  Dae-Kwang Jung ,  Jeong-Seok Choi ,  Hong-Seok Shin ,  Dong-Jae Shin ,  Sung-Bum Park

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

IPC分类号： G09G5/02 ,  H04N1/00

CPC分类号： H04N1/00307 ,  H04N1/00129 ,  H04N1/00251 ,  H04N1/00302

摘要： A data communication apparatus based on digital image processing includes a display that displays a color block array including color blocks corresponding to transmission data. The data communication apparatus also includes a camera that captures an image of a color block array displayed on a display of a transmitting side, and a storage that stores a code table including information about colors mapped to data values. The data communication apparatus further includes a Digital Signal Processor (DSP) that creates a color block array by converting transmission data to color blocks according to the code table during data transmission, identifies the color block array in the image captured by the camera, detects colors of color blocks in the color block array, and extracts data values corresponding to the detected colors during data reception.

摘要翻译： 基于数字图像处理的数据通信装置包括显示包括与传输数据相对应的颜色块的颜色块阵列的显示器。 数据通信装置还包括拍摄显示在发送侧的显示器上的彩色块阵列的图像的相机，以及存储包括映射到数据值的颜色的信息的代码表的存储器。 数据通信装置还包括数字信号处理器（DSP），其通过在数据传输期间根据代码表将发送数据转换为色块来产生色块阵列，识别由相机拍摄的图像中的色块阵列，检测颜色 并且在数据接收期间提取与检测到的颜色相对应的数据值。

公开(公告)号：US08005366B2

公开(公告)日：2011-08-23

申请号：US12217682

申请日：2008-07-08

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

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

IPC分类号： H04B10/00

CPC分类号： H04B10/116 ,  H04B10/1149

摘要： A reconnection method and device for a peripheral interface using VLC provide a protocol for when a communication link between a primary device and a secondary device is disconnected. The primary device generates an R-XID message including reconnection information and a warning indication signal indicating the disconnection. The secondary device aligns the communication link with the primary device using the warning indication signal, receives the R-XID message from the primary device by the secondary device, and transmits an R-XID response message for the R-XID message to the primary device.

摘要翻译： 用于使用VLC的外围接口的重新连接方法和设备提供了当主设备和辅助设备之间的通信链路断开时的协议。 主设备生成包括重新连接信息和指示断开的警告指示信号的R-XID消息。 辅助设备使用警告指示信号将通信链路与主设备对准，由辅助设备从主设备接收R-XID消息，并将R-XID消息的R-XID响应消息发送到主设备 。

公开(公告)号：US20090213099A1

公开(公告)日：2009-08-27

申请号：US12390888

申请日：2009-02-23

申请人： Sung-Bum PARK ,  Dae-Kwang Jung ,  Jeong-Seok Choi ,  Hong-Seok Shin ,  Kyung-Woo Lee ,  Dong-Jae Shin

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

IPC分类号： G09G5/00

CPC分类号： G09G3/001 ,  G09G3/2014 ,  G09G3/30

摘要： Provided is a method for broadcasting visible light information in visible light communication. The method includes determining a time interval for a simultaneous signal and a time interval for an individual signal of information to be displayed on a display device; simultaneously modulating output signals of three Red-Green-Blue (RGB) Light Emitting Diodes (LEDs) making up one pixel, and transferring the modulated information to the display device; individually modulating output signals of the three RGB LEDs and transferring the modulated information to the display device; and displaying the modulated information for any selected one of the time interval for the simultaneous signal and the time interval for the individual signal.

摘要翻译： 提供了一种在可见光通信中广播可见光信息的方法。 该方法包括确定要在显示设备上显示的信息的单独信号的同时信号的时间间隔和时间间隔; 同时调制构成一个像素的三个红 - 绿 - 蓝（RGB）发光二极管（LED）的输出信号，并将调制信息传送到显示装置; 分别调制三个RGB LED的输出信号并将调制信息传送到显示设备; 以及显示用于同时信号的时间间隔中的所选择的一个的调制信息和用于各个信号的时间间隔。

公开(公告)号：US20090185802A1

公开(公告)日：2009-07-23

申请号：US12217943

申请日：2008-07-10

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

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

IPC分类号： H04L12/26 ,  H04B10/00

CPC分类号： H04B10/116 ,  H04B10/1149 ,  H04B17/23 ,  H04B17/318

摘要： A method for generating a visible signal for a data transmission frame in a visible-light communication system includes: receiving specific data constituted by a plurality of frames from a sender; checking and converting a received signal strength indication (RSSI) signal measured from the sender; whenever each frame of the specific data is consecutively received, checking the converted RSSI, determining a level of a visible signal for distinctively displaying a state of a corresponding communication channel, and transmitting the level of the visible signal to the sender; and when reception of the specific data has finished, transmitting a corresponding response message to the sender, according to whether the specific data has been successfully received.

摘要翻译： 一种用于在可见光通信系统中生成数据传输帧的可视信号的方法包括：从发送器接收由多个帧构成的特定数据; 检查和转换从发送者测量的接收信号强度指示（RSSI）信号; 每当连续接收到特定数据的每个帧时，检查转换的RSSI，确定可视信号的电平，以区别显示对应通信信道的状态，并将可见信号的电平发送给发送者; 并且当特定数据的接收完成时，根据该特定数据是否已被成功接收，向发送者发送相应的响应消息。

公开(公告)号：US20090028558A1

公开(公告)日：2009-01-29

申请号：US12220591

申请日：2008-07-25

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

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

IPC分类号： H04B10/00

CPC分类号： H04B10/116 ,  H04B10/1143 ,  H04W4/06 ,  H04W8/005 ,  H04W8/26 ,  H04W74/00

摘要： A method of providing a visible light communication in a data link layer of a visible light communication system adopting an infrared communication link connection protocol includes: broadcasting a discovery exchange station identification (D-XID) frame; generating a visible frame to provide a visibility to a link for a specified waiting time period for responding to the broadcast D-XID frame; exchanging a set normal response mode (SNRM) frame and an unnumbered acknowledgement (UA) frame for requesting a link setting between the transmitting and receiving terminals; generating visible frames for a waiting time for receiving the SNRM frame and the UA frame; exchanging an information transfer frame (I-frame) and a receive ready (RR) frame, which is a response to the I-frame, between the transmitting and receiving terminals; and generating visible frames for a specified waiting period for receiving the I-frame and the RR frame.

摘要翻译： 在采用红外通信链路连接协议的可见光通信系统的数据链路层提供可见光通信的方法包括：广播发现交换站识别（D-XID）帧; 产生可见帧以提供对指定等待时间段的链接的可见性，以响应广播D-XID帧; 交换设置的正常响应模式（SNRM）帧和用于请求发送和接收终端之间的链路设置的无编号确认（UA）帧; 产生用于接收SNRM帧和UA帧的等待时间的可见帧; 在发送和接收终端之间交换作为对I帧的响应的信息传送帧（I帧）和接收就绪（RR）帧; 并产生用于接收I帧和RR帧的指定等待周期的可见帧。

公开(公告)号：US20070014576A1

公开(公告)日：2007-01-18

申请号：US11403757

申请日：2006-04-13

申请人： Sung-Bum Park ,  Seong-Taek Hwang ,  Hyun-Soo Kim ,  Dae-Kwang Jung ,  Hong-Seok Shin ,  Dong-Jae Shin

发明人： Sung-Bum Park ,  Seong-Taek Hwang ,  Hyun-Soo Kim ,  Dae-Kwang Jung ,  Hong-Seok Shin ,  Dong-Jae Shin

IPC分类号： H04J14/02

CPC分类号： H04J14/0216 ,  H04J14/0208

摘要： A bidirectional add/drop multiplexer includes first input/output unit inputs a first optical signal multiplexed from a plurality of odd channels and outputs a second optical signal multiplexed from a plurality of added or dropped even channels; a second input/output unit outputs the first optical signal multiplexed from a plurality of added or dropped odd channels and outputs the second optical signal multiplexed from a plurality of even channels; an optical arrayed waveguide grating for multiplexing added or dropped odd channels of the first optical signal input to a first terminal for subsequent transmission to the second input/output unit, multiplexing added or dropped even channels of the second optical signal input to a second terminal for subsequent transmission to the first input/output unit; and an optical combining unit that amplifies the first optical signal and the second optical signal input from the first input/output unit and the second input/output unit.

摘要翻译： 双向分插复用器包括：第一输入/输出单元输入从多个奇数通道复用的第一光信号，并输出从多个相加或丢弃的偶数通道中复用的第二光信号; 第二输入/输出单元输出从多个相加或丢弃的奇数信道复用的第一光信号，并输出从多个偶数信道复用的第二光信号; 光学阵列波导光栅，用于将第一光信号输入的添加或丢弃的奇数通道复用到第一终端，用于随后传输到第二输入/输出单元，将输入的第二光信号的偶数或偶数的偶数通道复用到第二终端， 随后传输到第一输入/输出单元; 以及光合成单元，其放大从第一输入/输出单元和第二输入/输出单元输入的第一光信号和第二光信号。

公开(公告)号：US07123633B2

公开(公告)日：2006-10-17

申请号：US10691392

申请日：2003-10-22

申请人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Jea-Hyuck Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

发明人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Jea-Hyuck Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

IPC分类号： H01S3/098 ,  H04J14/02

CPC分类号： H04J14/02 ,  H01S5/0268 ,  H01S5/0608 ,  H01S5/0654 ,  H01S5/0656 ,  H01S5/4006 ,  H01S5/4087

摘要： A method for maintaining the mode-locked state of a Fabry-Perot (FP) laser and a WDM light source using the same method for use in WDM optical communication are disclosed. The mode-locked state can be maintained irrespective of temperature change, without use of a temperature controller, by spectrum-slicing the incoherent light generated by a light source element and injecting the spectrum-sliced light to the FP laser, then the FP laser amplifies and outputs only a lasing mode coinciding with the wavelength of the injected light, wherein a lasing-mode interval of the FP laser is set to be less than a 3 dB linewidth of the injected light, so that at least one lasing mode exists inside the 3 dB linewidth of the injected light irrespective of changes in external temperature.

摘要翻译： 公开了一种使用与WDM光通信相同的方法来维持法布里 - 珀罗（FP）激光器和WDM光源的锁模状态的方法。 通过对光源元件产生的非相干光进行频谱分片，并将光谱切片光注入到FP激光器中，不管温度变化如何，可以保持模式锁定状态而不使用温度控制器，然后FP激光放大 并且仅输出与注入的光的波长一致的激光模式，其中FP激光器的激光模式间隔被设置为小于注入的光的3dB线宽，使得至少一个激光模式存在于 不管外部温度的变化，注入光线的3dB线宽。

公开(公告)号：US07073956B1

公开(公告)日：2006-07-11

申请号：US11185040

申请日：2005-07-20

申请人： Dong-Jae Shin ,  Chang-Sup Shim ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Dong-Jae Shin ,  Chang-Sup Shim ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： G02B6/36

CPC分类号： G02B6/4246 ,  G02B6/2706 ,  G02B6/29361 ,  G02B6/29385

摘要： Disclosed are an optical transceiver and an passive optical network using the same. The optical transceiver includes a polarization splitter for splitting injected light input from an outside of the optical transceiver into a first polarization component and a second polarization component, a light injected transmitter for receiving the first polarization component and outputting an optical signal generated based on the first polarization component, and an optical receiver for detecting an electrical signal based on the second polarization component.

摘要翻译： 公开了一种光收发器和使用其的无源光网络。 光收发器包括：偏振分离器，用于将从光收发器的外部输入的注入光分成第一偏振分量和第二偏振分量;光注入发射器，用于接收第一偏振分量，并输出基于第一偏振分量产生的光信号 偏振分量和用于基于第二偏振分量检测电信号的光接收器。

公开(公告)号：US20050144221A1

公开(公告)日：2005-06-30

申请号：US10915100

申请日：2004-08-10

申请人： Dong-Jae Shin ,  Yun-Hee Seok

发明人： Dong-Jae Shin ,  Yun-Hee Seok

IPC分类号： H04Q7/24 ,  G06F15/16 ,  G06F17/30

CPC分类号： G06F16/957

摘要： An apparatus and method for downloading a picture from a picture server at the time of reviewing the picture in a mobile communication terminal. The mobile communication terminal receives at least one picture page of a first screen for a picture-review operating mode from the picture server and displays the received picture page. The mobile communication terminal determines whether a prefetch function has been set to download a preset number of picture pages. If the prefetch function has been set, the mobile communication terminal carries out a prefetch operation for downloading in advance, from the picture server, a next picture page that a user can view in a forward direction.

摘要翻译： 一种用于在移动通信终端中查看图像时从图像服务器下载图像的装置和方法。 移动通信终端从图像服务器接收图像审查操作模式的第一屏幕的至少一个图像页面，并显示所接收的图像页面。 移动通信终端确定是否设置了预取功能来下载预设数量的图片页面。 如果预取功能已被设置，则移动通信终端从图像服务器预先执行用于在向前方观看的下一图像页面的预取操作。

公开(公告)号：US20050105171A1

公开(公告)日：2005-05-19

申请号：US10867035

申请日：2004-06-14

申请人： Dong-Jae Shin ,  Jeong-Seok Lee ,  Seung-Woo Kim ,  Seong-Taek Hwang

发明人： Dong-Jae Shin ,  Jeong-Seok Lee ,  Seung-Woo Kim ,  Seong-Taek Hwang

IPC分类号： H01S5/50 ,  H01S3/00 ,  H01S5/00

CPC分类号： H01S5/50 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/0078 ,  H01S5/5018

摘要： A reflective semiconductor optical amplifier light source is disclosed. The reflective semiconductor optical amplifier light source includes a transmissive type semiconductor optical amplifier for creating and amplifying spontaneous emission light, a reflector for reflecting amplified spontaneous emission light outputted from the semiconductor optical amplifier such that amplified spontaneous emission light is reflected back into the semiconductor optical amplifier, and a bandpass filter having a predetermined wavelength band width for limiting wavelength bands of the amplified spontaneous emission light capable of passing through the bandpass filter. In one aspect of the invention, the bandpass filter is interposed between the semiconductor optical amplifier and the reflector. In another aspect, a polarization filter is imposed to limit the reflected emission light to a predetermined polarization.

摘要翻译： 公开了一种反射半导体光放大器光源。 反射半导体光放大器光源包括用于产生和放大自发发射光的透射型半导体光放大器，用于反射从半导体光放大器输出的放大的自发发射光的反射器，使得放大的自发发射光被反射回到半导体光放大器 以及具有预定波长带宽的带通滤波器，用于限制能够通过带通滤波器的放大的自发发射光的波段。 在本发明的一个方面，带通滤波器插在半导体光放大器和反射器之间。 在另一方面，施加偏振滤光器以将反射的发射光限制到预定的偏振。