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41 条记录 (耗时 0.024 秒)

    Phase Shifter and Electro-Optic Modulation Device Including the Same
    1.
    发明申请
    Phase Shifter and Electro-Optic Modulation Device Including the Same 有权
    移相器和电光调制装置包括它

    公开(公告)号：US20120099813A1

    公开(公告)日：2012-04-26

    申请号：US13239936

    申请日：2011-09-22

    申请人： Kwang-Hyun Lee ,  Dong-Jae Shin ,  Kyoung-Ho Ha

    发明人： Kwang-Hyun Lee ,  Dong-Jae Shin ,  Kyoung-Ho Ha

    IPC分类号： G02F1/035

    CPC分类号： G02F1/025 ,  G02F1/2257 ,  G02F2201/066 ,  G02F2201/15

    摘要： A phase shifter includes an optical waveguide, a plurality of impurity regions and a plurality of electrodes. The optical waveguide receives an optical input signal and outputs an optical output signal. The impurity regions include respective charge carriers. The impurity regions are disposed in contact with the optical waveguide at respective contact surface, where at least one of the contact surfaces has a zigzag pattern. The electrodes are connected to the respective impurity regions. Application of an electrical signal to at least one of the electrodes phase-shifts the optical output signal with respect to the optical input signal. Therefore, the phase shifter may efficiently vary a magnitude of the phase shift of the optical output signal.

    摘要翻译： 移相器包括光波导，多个杂质区和多个电极。 光波导接收光输入信号并输出​​光输出信号。 杂质区域包括各自的载流子。 杂质区域设置成在相应的接触表面处与光波导接触，其中至少一个接触表面具有锯齿形图案。 电极连接到各个杂质区域。 将电信号施加到至少一个电极相对于光输入信号使光输出信号相移。 因此，移相器可以有效地改变光输出信号的相移幅度。

    Phase shifter and electro-optic modulation device including the same
    2.
    发明授权
    Phase shifter and electro-optic modulation device including the same 有权
    移相器和包括其的电光调制装置

    公开(公告)号：US08634678B2

    公开(公告)日：2014-01-21

    申请号：US13239936

    申请日：2011-09-22

    申请人： Kwang-Hyun Lee ,  Dong-Jae Shin ,  Kyoung-Ho Ha

    发明人： Kwang-Hyun Lee ,  Dong-Jae Shin ,  Kyoung-Ho Ha

    IPC分类号： G02F1/035

    CPC分类号： G02F1/025 ,  G02F1/2257 ,  G02F2201/066 ,  G02F2201/15

    摘要： A phase shifter includes an optical waveguide, a plurality of impurity regions and a plurality of electrodes. The optical waveguide receives an optical input signal and outputs an optical output signal. The impurity regions include respective charge carriers. The impurity regions are disposed in contact with the optical waveguide at respective contact surface, where at least one of the contact surfaces has a zigzag pattern. The electrodes are connected to the respective impurity regions. Application of an electrical signal to at least one of the electrodes phase-shifts the optical output signal with respect to the optical input signal. Therefore, the phase shifter may efficiently vary a magnitude of the phase shift of the optical output signal.

    摘要翻译： 移相器包括光波导，多个杂质区和多个电极。 光波导接收光输入信号并输出​​光输出信号。 杂质区域包括各自的载流子。 杂质区域设置成在相应的接触表面处与光波导接触，其中至少一个接触表面具有锯齿形图案。 电极连接到各个杂质区域。 将电信号施加到至少一个电极相对于光输入信号使光输出信号相移。 因此，移相器可以有效地改变光输出信号的相移幅度。

    Communication link apparatus and method for maintaining visibility in visible light communication
    3.
    发明授权
    Communication link apparatus and method for maintaining visibility in visible light communication 有权
    用于保持可见光通信中的可视性的通信链路装置和方法

    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。

    Wavelength division multiplexed light source and passive optical network using the same
    6.
    发明申请
    Wavelength division multiplexed light source and passive optical network using the same 审中-公开
    波分复用光源和无源光网络使用相同

    公开(公告)号：US20060233550A1

    公开(公告)日：2006-10-19

    申请号：US11406135

    申请日：2006-04-18

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

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

    IPC分类号： H04J14/02

    CPC分类号： H04J14/0226 ,  H04B10/506 ,  H04J14/02 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253

    摘要： A wavelength division multiplexed light source for a passive optical network using the same includes broadband light sources arranged at a desired interval on a wavelength axis, so as to output wavelength bands each having a plurality of structural wavelengths. Further included is a main coarse wavelength division multiplexer (M-CWDM) for multiplexing the lights and a dense wavelength division multiplexer (DWDM) for spectrally dividing the multiplexed light into the channels corresponding to structural wavelengths of the multiplexed light. Groups are consequently generated each of which has a plurality of channels spaced at wavelength period.

    摘要翻译： 用于使用该波分复用光纤的无源光网络的波分复用光源包括在波长轴上以期望的间隔布置的宽带光源，以输出每个具有多个结构波长的波长带。 还包括用于复用光的主粗略波分多路复用器（M-CWDM）和用于将多路复用光谱分解成与多路复用光的结构波长相对应的通道的密集波分多路复用器（DWDM）。 因此，产生每个具有在波长周期间隔开的多个通道的组。

    Optical signal concentrator and optical receiver using the same
    7.
    发明授权
    Optical signal concentrator and optical receiver using the same 失效
    光信号集中器和光接收机使用相同

    公开(公告)号：US08433207B2

    公开(公告)日：2013-04-30

    申请号：US12603021

    申请日：2009-10-21

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

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

    IPC分类号： H04B10/06 ,  G02F1/1335

    CPC分类号： H04B10/1141 ,  H04B10/116

    摘要： Disclosed are an optical signal concentrator and an optical receiver for wireless optical communication. The concentrator includes a diffusion sheet and a light guide plate positioned below the diffusion sheet for guiding diffused optical signals perpendicularly to the incident direction the diffused optical signals, the light guide plate being formed with at least one concentric circle pattern facing the diffusion sheet. The receiver includes an optical signal concentrator including a diffusion sheet, a light guide plate positioned below the diffusion sheet for guiding the optical signals perpendicularly to the incident direction the diffused optical signals, one or more optical detectors for detecting light projected to the side of the light guide plate, and a reflection plate for reflecting light incident to the light guide plate.

    摘要翻译： 公开了一种用于无线光通信的光信号集中器和光接收器。 集中器包括扩散片和位于扩散片下方的导光板，用于将漫射光信号垂直于入射方向引导到漫射光信号，导光板形成有面向扩散片的至少一个同心圆图案。 接收机包括：光信号集中器，包括扩散片;导光板，位于漫射片下方，用于垂直于入射方向引导光信号扩散光信号;一个或多个光检测器，用于检测投射到 导光板和用于反射入射到导光板的光的反射板。

    Wireless communication interface for portable wireless terminal
    8.
    发明授权
    Wireless communication interface for portable wireless terminal 失效
    便携式无线终端的无线通信接口

    公开(公告)号：US08204383B2

    公开(公告)日：2012-06-19

    申请号：US11978839

    申请日：2007-10-30

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

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

    IPC分类号： H04B1/38 ,  H04B10/10

    CPC分类号： H04M1/7253 ,  H04M1/22

    摘要： A wireless communication interface for a portable wireless terminal and a system for wirelessly communicating by a portable wireless terminal with another device via a free space. The interface facilitates aligning the portable wireless device with another devices for improved communication. The interface including: a light source for generating a data-modulated visible light signal and outputting the visible light signal to the free space; an optical detector for generating an electrical signal by photoelectrically converting the visible light signal input from the free space, and for outputting the electrical signal. A demodulation unit demodulates the electrical signal input from the optical detector, and outputs a data signal.

    摘要翻译： 一种用于便携式无线终端的无线通信接口和用于由便携式无线终端经由自由空间与另一设备进行无线通信的系统。 该接口便于将便携式无线设备与另一设备对准以改善通信。 该接口包括：用于产生数据调制的可见光信号并将可见光信号输出到自由空间的光源; 光学检测器，用于通过对从自由空间输入的可见光信号进行光电转换并输出电信号来产生电信号。 解调单元解调从光学检测器输入的电信号，并输出数据信号。

    Method for providing visible light communication in a visible light communication system
    9.
    发明授权
    Method for providing visible light communication in a visible light communication system 有权
    在可见光通信系统中提供可见光通信的方法

    公开(公告)号：US08019230B2

    公开(公告)日：2011-09-13

    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, legal representative

    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

    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。