公开(公告)号：US10459177B2

公开(公告)日：2019-10-29

申请号：US15807784

申请日：2017-11-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jeong Eun Kim ,  Jong Jin Lee ,  Eun Kyu Kang ,  Won Bae Kwon ,  Soo Yong Jung

IPC: G02B6/42 ,  G02B6/12

Abstract: Provided are an optical alignment device applied to an assembly process of an optical transmitter and an optical receiver that include multi-channel optical elements and optical waveguide elements for optical communication, and an optical alignment method thereof. The optical alignment device includes an element fixing case with a mounting space formed thereinside and an element insertion hole communicating with the mounting space formed at an upper side thereof, and a light source mounted in the mounting space of the element fixing case and configured to emit light toward a lower side of an optical element or an optical waveguide element which is inserted into the element insertion hole to check a position of a core.

公开(公告)号：US20140169350A1

公开(公告)日：2014-06-19

申请号：US13778603

申请日：2013-02-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS REASEARCH INSTITUTE

Inventor： Hoi Yoon JUNG ,  Hyun Duk KANG ,  Gwang Zeen KO ,  Myung Sun SONG ,  Jae Ick CHOI

IPC: H04W84/12

CPC classification number: H04W84/12 ,  H04W48/16

Abstract: Disclosed are an apparatus and a method for determining an identity of a WLAN system occupying a channel, using information within a signal field or time synchronization between target channels. For this, the present invention includes a preamble detecting unit configured to detect a preamble in each channel; a channel information obtaining unit configured to obtain reference time information when the preamble is detected in each channel, or to obtain signal field information in each channel using the detected preamble; and an identity determining unit configured to determine an identity of a WLAN system occupying each channel by comparing the reference time information obtained in each channel, or by comparing the signal field information obtained in each channel.

Abstract translation: 公开了使用信号字段内的信息或目标信道之间的时间同步来确定占用信道的WLAN系统的身份的装置和方法。 为此，本发明包括：前导码检测单元，被配置为检测每个信道中的前同步码; 信道信息获取单元，被配置为当在每个信道中检测到前导码时获取参考时间信息，或者使用检测到的前导码获得每个信道中的信号字段信息; 以及身份确定单元，被配置为通过比较在每个频道中获得的参考时间信息，或者通过比较在每个频道中获得的信号字段信息来确定占用每个频道的WLAN系统的身份。

公开(公告)号：US20140070998A1

公开(公告)日：2014-03-13

申请号：US14021163

申请日：2013-09-09

Applicant: Electronics and Telecommunications Reasearch Institute

Inventor： Woo Yong LEE ,  Jin Kyeong KIM

IPC: G01S5/10

CPC classification number: G01S5/10 ,  G01S5/0289

Abstract: Provided is an apparatus and method for recognizing a location by conversion of a frequency offset, the apparatus including a setting unit to receive, from a terminal, a plurality of signals comprising a first signal and a second signal, and to set a variable corresponding to each of the plurality of signals, a detector to detect a first residual phase of a carrier frequency of the first signal and a second residual phase of a carrier frequency of the second signal using the variables, and a recognizer to recognize a location of the terminal by calculating a difference between the first residual phase and the second residual phase.

Abstract translation: 提供了一种用于通过频率偏移的转换来识别位置的装置和方法，该装置包括设置单元，用于从终端接收包括第一信号和第二信号的多个信号，并且设置对应于 多个信号中的每一个，检测器，用于使用变量检测第一信号的载波频率的第一残余相位和第二信号的载波频率的第二残余相位，以及识别器，以识别终端的位置 通过计算第一残留相和第二残留相之间的差。

公开(公告)号：US20110149718A1

公开(公告)日：2011-06-23

申请号：US12841493

申请日：2010-07-22

Applicant: Young-Ha LEE

Inventor： Young-Ha LEE

IPC: H04J11/00

CPC classification number: H04L27/265 ,  G06F17/142 ,  H04L27/263

Abstract: A fast Fourier transform (FFT) apparatus and method. The FFT method may include finding a number of subcarriers carrying valid data in reception data, determining a Fourier transform order on the basis of the number of subcarriers, performing complex multiplication on the reception data, and then performing a Fourier transform of the determined Fourier transform order. Using the FFT method, it is possible to reduce the amount of computation and the complexity of an FFT in a frequency division multiplexing (FDM) system and simplify a hardware structure.

Abstract translation: 一种快速傅立叶变换（FFT）装置和方法。 FFT方法可以包括：在接收数据中发现携带有效数据的子载波数量，基于子载波数量确定傅里叶变换顺序，对接收数据执行复数乘法，然后执行所确定的傅里叶变换 订购。 使用FFT方法，可以减少频分复用（FDM）系统中的计算量和复杂度，并简化硬件结构。

公开(公告)号：US20120154189A1

公开(公告)日：2012-06-21

申请号：US13310606

申请日：2011-12-02

Applicant: Min-Hyung CHO ,  Yi-Gyeong Kim ,  Jong-Kee Kwon

Inventor： Min-Hyung CHO ,  Yi-Gyeong Kim ,  Jong-Kee Kwon

IPC: H03M1/66 ,  H03B1/00

CPC classification number: H03K17/04106 ,  H03M1/06 ,  H03M1/66

Abstract: Provided are a current switch driving circuit generating a signal for driving a current switch, and a digital-to-analog converter using the same. The current switch driving circuit includes a first PMOS transistor in which a source terminal is connected to a power supply terminal, a gate terminal receives an input signal, and a drain terminal outputs a driving signal, an NMOS transistor in which a drain terminal is connected to the drain terminal of the first PMOS transistor, and a gate terminal receives the input signal, a second PMOS transistor in which a source terminal is connected to a source terminal of the NMOS transistor, a gate terminal is connected to a bias voltage terminal, and a drain terminal is connected to a ground terminal, and a control current source allowing the second PMOS transistor to be maintained constantly in an ON state.

Abstract translation: 提供了产生用于驱动电流开关的信号的电流开关驱动电路和使用该电流开关的数模转换器。 电流开关驱动电路包括：第一PMOS晶体管，源极端子连接到电源端子，栅极端子接收输入信号，漏极端子输出驱动信号;漏极端子连接的NMOS晶体管 到第一PMOS晶体管的漏极端子，并且栅极端子接收输入信号;第二PMOS晶体管，其源极端子连接到NMOS晶体管的源极端子，栅极端子连接到偏置电压端子， 并且漏极端子连接到接地端子，并且使得允许第二PMOS晶体管恒定地处于导通状态的控制电流源。

公开(公告)号：US07373084B2

公开(公告)日：2008-05-13

申请号：US10913884

申请日：2004-08-05

Applicant: Hyun Ho Yun ,  Tae Yeon Kim ,  Jeong Ju Yoo ,  Byoung Whi Kim

Inventor： Hyun Ho Yun ,  Tae Yeon Kim ,  Jeong Ju Yoo ,  Byoung Whi Kim

IPC: H04J14/00

CPC classification number: H04J14/0282 ,  H04B10/40 ,  H04J14/02 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0298 ,  H04Q11/0067 ,  H04Q2011/0016 ,  H04Q2011/0064

Abstract: A termination device for use in a WDM-SCM PON system can effectively support a multi-channel integration function of a WDM/SCM PON system. The termination device contained in a termination end of a WDM/SCM (Wavelength Division Multiplexing/Sub-Carrier Multiplexing) PON (Passive Optical Network) to connect the PON with either a subscriber or an Ethernet service network includes: an Ethernet interface module connected to the Ethernet service network or the subscriber to perform an Ethernet interface function; a WDM/SCM physical layer module physically connected to the WDM/SCM PON to transmit/receive optical signals to/from the WDM/SCM PON; and a MAC (Media Access Control)-bridge module for performing a multiplexing/demultiplexing operation based on a MAC address upon receipt of transmission/reception frames, and reconstructing preambles of the frames while being classified according to channels so that individual Ethernet frames are matching-processed while being classified according to SCM channels of the WDM/SCM physical layer module.

Abstract translation: 用于WDM-SCM PON系统的终端设备可以有效地支持WDM / SCM PON系统的多信道集成功能。 包含在将PON与用户或以太网业务网络连接的WDM / SCM（波分复用/子载波复用）PON（无源光网络）的终端中的终端设备包括：以太网接口模块，连接到 以太网业务网络或用户执行以太网接口功能; 物理上连接到WDM / SCM PON的WDM / SCM物理层模块，用于向/从WDM / SCM PON发送/接收光信号; 以及MAC（媒体访问控制） - 桥接模块，用于在接收到发送/接收帧时基于MAC地址执行复用/解复用操作，并且在根据信道被分类的同时重构帧的前同步码，使得各个以太网帧匹配 在根据WDM / SCM物理层模块的SCM通道进行分类的过程中。

公开(公告)号：US20140164279A1

公开(公告)日：2014-06-12

申请号：US13956949

申请日：2013-08-01

Applicant: Electronics and Telecommunications Reasearch Institute

Inventor： Hyoung Oh BAE

IPC: G06Q10/08

CPC classification number: G06Q10/0833

Abstract: Disclosed are a container information control system and a container information control method capable of simply and accurately collecting and controlling container information by using an optical or laser transceiver in which multiple paths or interference signals are not generated. A system for controlling information on containers according to an exemplary embodiment of the present invention includes: one or more transceivers connected to internal sensors of the containers, respectively, in which information on the respective containers is stored; and a wireless access point positioned at an uppermost container, and configured to receive the container information from the transceivers.

Abstract translation: 公开了一种容器信息控制系统和容器信息控制方法，其能够通过使用其中不产生多个路径或干扰信号的光学或激光收发器简单且准确地收集和控制容器信息。 根据本发明的示例性实施例的用于控制容器信息的系统包括：分别连接到容器的内部传感器的一个或多个收发器，其中存储有关于各个容器的信息; 以及无线接入点，其位于最上面的容器处，并且被配置为从所述收发器接收所述容器信息。

公开(公告)号：US20130080157A1

公开(公告)日：2013-03-28

申请号：US13338748

申请日：2011-12-28

Applicant: Hyun-Woo KIM ,  Do-Young KIM ,  Byung-Sun LEE

Inventor： Hyun-Woo KIM ,  Do-Young KIM ,  Byung-Sun LEE

IPC: G10L19/14

CPC classification number: G10L19/0208 ,  G10L19/0017 ,  G10L19/002 ,  G10L19/038 ,  H03M7/3082 ,  H04N19/94

Abstract: Disclosed is a coding apparatus and method using residual bits. Accordingly, performance (voice quality) is enhanced by quantizing a full-band gain of frequency coefficients existing in sub-bands to which bits are not assigned in an algebraic vector quantization (AVQ). Further, the performance (voice quality) is enhanced by sequentially quantizing a sub-band gain of sub-bands to which bits are not assigned until residual bits are removed. Furthermore, the performance (voice quality) is enhanced by demodulating AVQ coefficients, and correcting quantization noises starting with a coefficient having the greatest absolute coefficient among the AVQ coefficients, when residual bits additionally remain.

Abstract translation: 公开了使用残余比特的编码装置和方法。 因此，通过量化在代数矢量量化（AVQ）中未分配比特的子带中存在的频率系数的全频带增益来增强性能（语音质量）。 此外，通过顺序量化不分配比特的子带的子带增益，直到残留比特被去除，来提高演奏（语音质量）。 此外，当剩余比特额外保留时，通过解调AVQ系数和从AVQ系数中具有最大绝对系数的系数开始校正量化噪声来增强演奏（语音质量）。

公开(公告)号：US20100123445A1

公开(公告)日：2010-05-20

申请号：US12487596

申请日：2009-06-18

Applicant: Kwi Dong KIM ,  Jong Kee Kwon ,  Jong Dae Kim ,  Yong Seo Koo

Inventor： Kwi Dong KIM ,  Jong Kee Kwon ,  Jong Dae Kim ,  Yong Seo Koo

IPC: G05F1/618

CPC classification number: H02M1/08 ,  H02M2001/0032 ,  Y02B70/16

Abstract: Provided are a switching circuit and a small-size high-efficiency direct current-to-direct current (DC-DC) converter for portable devices including the same. Using dynamic threshold-complementary metal oxide semiconductor (DT-CMOS) transistors having dynamic threshold voltages as a switching device, the switching circuit maintains a low threshold voltage in a normal mode to improve current drivability while reducing conduction loss, and maintains a high threshold voltage in a standby mode to minimize power consumption. When the switching circuit is employed in a DC-DC converter, power conversion efficiency can be improved by reducing conduction loss in the normal mode, and power consumption can be minimized in the standby mode. Consequently, the DC-DC converter can maximize a use time of a battery of a portable device and can be useful in power supplies of portable devices that are gradually being miniaturized.

Abstract translation: 提供了一种用于包括其的便携式设备的开关电路和小尺寸高效率直流 - 直流（DC-DC）转换器。 使用具有动态阈值电压的动态阈值互补金属氧化物半导体（DT-CMOS）晶体管作为开关器件，开关电路在正常模式下维持低阈值电压，从而改善电流驱动能力，同时降低导通损耗，并保持高阈值电压 处于待机模式以最小化功耗。 当在DC-DC转换器中采用开关电路时，可以通过降低正常模式下的导通损耗来提高功率转换效率，并且在待机模式下功耗可以最小化。 因此，DC-DC转换器可以使便携式设备的电池的使用时间最大化，并且可以用于逐渐小型化的便携式设备的电源。

公开(公告)号：US20100100929A1

公开(公告)日：2010-04-22

申请号：US12571873

申请日：2009-10-01

Applicant: Guntae BAE ,  Gaeil AN ,  Minho HAN ,  Kiyoung KIM

Inventor： Guntae BAE ,  Gaeil AN ,  Minho HAN ,  Kiyoung KIM

IPC: G06F17/00 ,  H04L9/32

CPC classification number: G06F21/6218

Abstract: Provided is an apparatus and a method for security managing of an information terminal. The provided classifies a plurality of information providing means into a plurality of domains including at least one information providing means and when a user process accesses any one domain and then attempts to access another domain, controls the access to said another domain by verifying whether or not the access of the user process to said another domain is allowed. According to the provided, security threats are monitored for each domain which an execution process accesses by simply constructing domain classification information of an entire system without specifically establishing a security policy of an information providing device, such that it is possible to protect a terminal from a multi-domain access process having high security risk. Accordingly, it is advantageous to increase security for the terminal from various security threats.

Abstract translation: 提供了一种用于信息终端的安全管理的装置和方法。 所提供的多个信息提供装置将多个信息提供装置分成包括至少一个信息提供装置的多个域，并且当用户进程访问任何一个域然后尝试访问另一个域时，通过验证是否进行访问来控制对所述另一个域的访问 允许用户进程访问所述另一个域。 根据所提供的，通过简单地构建整个系统的域分类信息而不特别地建立信息提供设备的安全策略来监视执行过程访问的每个域的安全威胁，使得可以保护终端免受 多域访问过程具有很高的安全隐患。 因此，从各种安全威胁增加终端的安全性是有利的。