公开(公告)号：KR1020040056472A

公开(公告)日：2004-07-01

申请号：KR1020020082857

申请日：2002-12-23

Applicant: 한국전자통신연구원

Inventor： 유준규 ,  정훈 ,  이호진 ,  오덕길

IPC: H04L27/34

CPC classification number: H04B1/7136 ,  H04B2001/71365

Abstract: PURPOSE: A frequency hopping system is provided to perform rapidly a frequency hopping operation within a broad band by converting each frequency of an output signal of a frequency hopper and an output signal of a fixing PLL and hopping the frequencies at an analog terminal. CONSTITUTION: A frequency hopping system includes a frequency hopper, a PLL(Phase Locked Loop), a mixer, and a modulator. The frequency hopper(200) is used for outputting periodically frequencies according to a predetermined pattern. The PLL(500) is used for outputting a signal having a fixed frequency. The mixer(400) is used for outputting a local signal having a hopped frequency by mixing an output signal of the frequency hopper and an output signal of the fixing PLL. The modulator(100) is used for outputting an RF signal by mixing the local signal having the hopped frequency, an In-phase signal, and a Quadrature-phase signal.

Abstract translation: 目的：提供一种跳频系统，通过转换频率料斗的输出信号的每个频率和固定PLL的输出信号，并在模拟端子跳频来快速执行宽带内的跳频操作。 构成：跳频系统包括频率漏斗，PLL（锁相环），混频器和调制器。 频率料斗（200）用于根据预定模式周期性地输出频率。 PLL（500）用于输出具有固定频率的信号。 混频器（400）用于通过混合频率料斗的输出信号和固定PLL的输出信号来输出具有跳跃频率的本地信号。 调制器（100）用于通过混合具有跳频的本地信号，同相信号和正交相位信号来输出RF信号。

公开(公告)号：KR1020040055086A

公开(公告)日：2004-06-26

申请号：KR1020020081681

申请日：2002-12-20

Applicant: 한국전자통신연구원

Inventor： 주인원 ,  김내수 ,  오덕길

IPC: H04B7/15

CPC classification number: H04W56/00 ,  H04B7/155 ,  H04L2012/5675 ,  H04W84/06

Abstract: PURPOSE: A method and an apparatus for controlling TDMA network synchronization by using a loopback are provided to prevent burst collision and accurately transmit a burst at allocated timing. CONSTITUTION: A traffic earth station obtains Dn through an RB(Reference Burst) received from a reference earth station after satellite delay time(16), and calculates TBT(Transmit Burst Timing) by using Dn(17). The traffic earth station transmits an initial TB at time allocated by a satellite A traffic base station transmits an SB(Short Burst), generating a timing margin as much as (TB-SB), and calculates a TBT again by allocating the timing margin by half before and after a burst(18). The traffic base station transmits the SB at an early stage by using the obtained TBT(19). After the satellite delay time, receive timing of the SB is calculated after an RFT to obtain an RBT(Receive Burst Timing)(6). The traffic earth station stores its TB-allocated timing as a BTF information in a memory, and obtains an error between the RBT value and the BTP value(8). A TBT can be obtained by subtracting the error value from the previous TBT value.

Abstract translation: 目的：提供一种通过使用环回来控制TDMA网络同步的方法和装置，以防止突发冲突，并在分配的定时精确地发送突发。 构成：地面站通过在卫星延迟时间（16）之后从参考地球站接收的RB（参考突发）获得Dn，并使用Dn（17）计算TBT（发送突发时间）。 业务地球站在由卫星A分配的时间发送初始TB业务基站发送SB（Short Burst），产生与（TB-SB）一样多的定时余量，并通过分配时间裕度来再次计算TBT 爆发前后一半（18）。 交通基站通过使用获得的TBT（19）在早期发送SB。 在卫星延迟时间之后，在RFT之后计算SB的接收定时以获得RBT（接收突发定时）（6）。 业务地球站将其作为BTF信息的TB分配定时存储在存储器中，并且获得RBT值和BTP值之间的误差（8）。 可以通过从先前的TBT值中减去误差值来获得TBT。

公开(公告)号：KR1020040046357A

公开(公告)日：2004-06-05

申请号：KR1020020074272

申请日：2002-11-27

Applicant: 한국전자통신연구원

Inventor： 최승남 ,  김내수 ,  오덕길

IPC: H04L12/28

CPC classification number: H04L12/5601 ,  H04L2012/5608 ,  H04L2012/5652 ,  H04Q11/0478

Abstract: PURPOSE: A network interworking device for interworking a satellite network with a terrestrial network is provided to perform an access function and an interworking function between a terrestrial network and a satellite network, thereby servicing terrestrial ATM data, video data, and Internet data at high speed. CONSTITUTION: An ATM module PMC(PCI Mezzanine Card)(210) consists of OC-3 portions(211,212) and DS-3 portions(213,214). An MPEG module PMC(220) receives a video broadcasting signal of an MPEG-2 transport stream transmitted from a terrestrial network, separates the broadcasting signal from an ATM cell, or combines an ATM cell received from a satellite body with the transport stream. An IPoA(IP over ATM) module PMC(230) separates fast Ethernet data from an ATM cell, or combines the ATM cell with the fast Ethernet data. An ATM layer processor(241) performs address conversion, cell routing, multiplexing, and cell processing functions of an ATM cell header.

Abstract translation: 目的：提供一种用于互联卫星网络与地面网络的网络互通设备，以执行地面网络和卫星网络之间的接入功能和互通功能，从而高速地为地面ATM数据，视频数据和因特网数据提供服务 。 规定：ATM模块PMC（PCI夹层卡）（210）由OC-3部分（211,212）和DS-3部分（213,214）组成。 MPEG模块PMC（220）接收从地面网络发送的MPEG-2传输流的视频广播信号，从ATM信元分离广播信号，或将从卫星主体接收的ATM信元与传输流组合。 IPoA（IP over ATM）模块PMC（230）将快速以太网数据与ATM信元分离，或将ATM信元与快速以太网数据组合。 ATM层处理器（241）执行ATM信元报头的地址转换，信元路由，多路复用和信元处理功能。

公开(公告)号：KR100428713B1

公开(公告)日：2004-04-28

申请号：KR1020010075782

申请日：2001-12-03

Applicant: 한국전자통신연구원

Inventor： 이석진 ,  최현미 ,  진성근 ,  임춘식 ,  오덕길

IPC: H04B5/00

Abstract: PURPOSE: A wireless terminal capable of charging by using non-contact magnetic induction and transceiving a signal and a wireless terminal charging device having a hands-free function are provided to enable the charging without inserting a connector by using a non-contact near magnetic induction method, and to transceive signals, thereby simultaneously performing a charging function and a hands-free function. CONSTITUTION: A wireless terminal(610) comprises as follows. A power receiving device(611) transmits a current to a battery(612). The battery(612) charges the current, and supplies power to each unit. A wireless terminal body(620) performs wireless communication. A controller(622) controls a charging caused by an inducted current, a charging of transmitting a voice signal, and the voice signal. A switching unit(632) transmits the voice signal to a built-in voice input/output unit(631) or a transceiving signal processor(633), or transmits a voice signal received from the input/output unit(631) or the processor(633) to the terminal body(620). The built-in voice input/output unit(631) inputs a voice signal from a microphone or outputs the voice signal. The transceiving signal processor(633) transmits the voice signal of the body(620) to a wireless terminal charging device, and transmits a voice signal received from the charging device to the switching unit(632).

Abstract translation: 目的：提供一种能够使用非接触磁感应进行充电并收发信号的无线终端和具有免提功能的无线终端充电装置，以通过使用非接触近磁感应而无需插入连接器就能够进行充电 方法，并且收发信号，由此同时执行充电功能和免提功能。 组成：无线终端（610）包括如下。 受电装置（611）向电池（612）发送电流。 电池（612）对电流充电，并向每个单元供电。 无线终端主体（620）执行无线通信。 控制器（622）控制由感应电流引起的充电，传送语音信号的充电和语音信号。 切换单元（632）将语音信号发送到内置语音输入/输出单元（631）或收发信号处理器（633），或者将从输入/输出单元（631）或处理器 （633）到终端主体（620）。 内置语音输入/输出单元（631）从麦克风输入语音信号或输出语音信号。 收发信号处理器（633）将主体（620）的语音信号发送到无线终端充电装置，并且将从充电装置接收的语音信号发送到切换单元（632）。

公开(公告)号：KR1020020051301A

公开(公告)日：2002-06-28

申请号：KR1020000080908

申请日：2000-12-22

Applicant: 한국전자통신연구원

Inventor： 송윤정 ,  김영완 ,  김내수 ,  오덕길

IPC: H04L27/22

CPC classification number: H04L25/061 ,  H04L27/2273

Abstract: PURPOSE: A digital quadrature demodulation device is provided where its DC offset is effectively controlled without increasing a complexity while realizing a hardware. CONSTITUTION: An A/D(Analog/Digital) converter(10) receives a receiving signal, and a matching filter(11) receives an output of the A/D converter. A digital interpolation filter(12) receives an output of the matching filter and an output of a symbol timing recoverer(14). A carrier phase detector(13) receives an output of the digital interpolation filter and an output of a carrier recoverer(15). A signal determination part(16) receives an output of the carrier phase detector, and the symbol timing recoverer receives the output of the carrier phase detector and an output of the signal determination part. The carrier recoverer receives the output of the carrier phase detector and the output of the signal determination part. And a DC offset control part(20) receives a recovery signal and a determination signal(symbol). The DC offset control part comprises a DC offset detector(21) receiving the recovery signal and the determination signal, and a loop filter(22) receiving an output of the DC offset detector, and a D/A converter(23) receiving an output of the loop filter.

Abstract translation: 目的：提供一种数字正交解调装置，其DC控制被有效地控制，而不会增加硬件的复杂性。 构成：A / D（模拟/数字）转换器（10）接收接收信号，匹配滤波器（11）接收A / D转换器的输出。 数字内插滤波器（12）接收匹配滤波器的输出和符号定时恢复器的输出（14）。 载波相位检测器（13）接收数字内插滤波器的输出和载波恢复器的输出（15）。 信号确定部分（16）接收载波相位检测器的输出，符号定时恢复器接收载波相位检测器的输出和信号确定部分的输出。 载波恢复器接收载波相位检测器的输出和信号确定部分的输出。 并且DC偏移控制部分（20）接收恢复信号和确定信号（符号）。 DC偏移控制部分包括接收恢复信号和确定信号的DC偏移检测器（21）和接收DC偏移检测器的输出的环路滤波器（22）和接收输出的D / A转换器（23） 的环路滤波器。

公开(公告)号：KR1020010076791A

公开(公告)日：2001-08-16

申请号：KR1020000004146

申请日：2000-01-28

Applicant: 한국전자통신연구원

Inventor： 송윤정 ,  김명섭 ,  오덕길

IPC: H04L27/00

CPC classification number: H04L27/0014 ,  H04L2027/0026 ,  H04L2027/0065 ,  H04L2027/0067

Abstract: PURPOSE: A parallel processing device of a decision directed carrier restoration apparatus is provided to increase calculation processing speed by parallel processing method other than sequential processing method. CONSTITUTION: The parallel processing device of a decision directed carrier restoration apparatus has the parallel frequency offset compensating part(101) and the parallel phase offset compensating part(102). The parallel frequency offset compensating part(101) parallel-inputs the carrier signal and compensates for the frequency offset by frequency tracking loop. The parallel phase offset compensating part(102) compensates for the frequency-compensated signal from the parallel frequency offset compensating part(101) by phase tracking loop(PTL).

Abstract translation: 目的：提供一种决策导向载波恢复装置的并行处理装置，通过并行处理方法以外的顺序处理方法来提高计算处理速度。 构成：决策导向载波恢复装置的并行处理装置具有并行频率补偿部分（101）和并行相位偏移补偿部分（102）。 并行频偏补偿部（101）并行输入载波信号，并通过频率跟踪回路补偿频偏。 并行相位偏移补偿部件（102）通过相位跟踪环路（PTL）补偿来自并行频率补偿部分（101）的频率补偿信号。

公开(公告)号：KR1020010063815A

公开(公告)日：2001-07-09

申请号：KR1019990061912

申请日：1999-12-24

Applicant: 한국전자통신연구원

Inventor： 예충일 ,  임춘식 ,  오덕길 ,  김환우

IPC: H04B7/00

CPC classification number: G08G1/0116 ,  G08G1/0962

Abstract: PURPOSE: A mounted apparatus and a roadside apparatus in Dedicated Short Range Communication(DSRC) system are provided to offer a group or personal a traffic information broadcast as well as additional services by constructing the DSRC system. CONSTITUTION: A parallel/serial converter(104) converts control and message signals received from a mounted device to serial signals. A channel forming device(110) receives the control and message signals from the parallel/serial converter(104), and forms channels. A coder(112) codes the control and message signals and link request signals from the channel forming device(110). A timing recover device(114) detects timing signals from the control signals and samples a symbol timing on the side of roadside. A decoder(122) decodes the coded signal from the received channels. A frame start signal sensor(124) samples a frame from the received channels and informs the mounted apparatus(100) of a start position of the frame. A channel start signal sensor(126) detects a channel start signal from the channels received from a roadside apparatus. A serial/parallel converter(118) converts the control and message signals to parallel signals. A storage(120) interfaces the serial/parallel converter and a controlling part.

Abstract translation: 目的：通过构建DSRC系统，提供专用短距离通信（DSRC）系统中的安装设备和路边设备，为组或个人提供交通信息广播以及附加服务。 构成：并行/串行转换器（104）将从安装的设备接收的控制和消息信号转换为串行信号。 信道形成装置（110）从并行/串行转换器（104）接收控制和消息信号，并形成信道。 编码器（112）对来自信道形成装置（110）的控制和消息信号和链路请求信号进行编码。 定时恢复装置（114）检测来自控制信号的定时信号并对路边一侧的符号定时采样。 解码器（122）对来自接收到的信道的编码信号进行解码。 帧启动信号传感器（124）从接收到的频道中采样一帧，并将安装的装置（100）通知帧的起始位置。 信道起始信号传感器（126）从从路侧设备接收的信道中检测信道起始信号。 串行/并行转换器（118）将控制和消息信号转换为并行信号。 存储器（120）将串行/并行转换器和控制部件接口。

公开(公告)号：KR1020010046037A

公开(公告)日：2001-06-05

申请号：KR1019990049619

申请日：1999-11-10

Applicant: 한국전자통신연구원

Inventor： 문영찬 ,  전순익 ,  오덕길

IPC: H01Q13/08 ,  H01Q13/28

Abstract: PURPOSE: A microstrip antenna surround by a via-hole and a microstrip antenna laminating method using the same are provided to form a cavity through a process of manufacturing a via-hole on a PCB(Printed Circuit Board) and laminating a microstrip antenna surrounded by the via-hole. CONSTITUTION: A plurality of microstrip antenna elements are arranged on PCBs(Printed Circuit Boards). A plurality of via-holes have conductive features with respect to an electromagnetic wave, and are positioned in a circumference of the antenna elements at predetermined intervals, so as to form a cavity. The respective via-holes are a conductive grid structure having an interval below a tenth wave length. The respective via-holes are formed by coating a conductive material on a wall surface of the holes. The via-holes are filled with conductive material inside thereof. The plurality of PCBs are separated with a conductive layer on which a hole is formed. The cavity is formed by the conductive via-holes having the predetermined intervals on the circumference of the microstrip antenna elements.

Abstract translation: 目的：通过通孔的微带天线和使用其的微带天线层叠方法，通过在PCB（印刷电路板）上制造通孔的方法形成空腔，并且层叠由 通孔。 构成：多个微带天线元件布置在PCB（印刷电路板）上。 多个通孔相对于电磁波具有导电特征，并且以预定间隔定位在天线元件的圆周中，以形成空腔。 相应的通孔是具有低于第十波长的间隔的导电栅格结构。 相应的通孔通过在孔的壁表面上涂覆导电材料而形成。 通孔内部填充有导电材料。 多个PCB由形成有孔的导电层分离。 空腔由在微带天线元件的圆周上具有预定间隔的导电通孔形成。

公开(公告)号：KR1020010026645A

公开(公告)日：2001-04-06

申请号：KR1019990038046

申请日：1999-09-08

Applicant: 한국전자통신연구원

Inventor： 김재한 ,  조성배 ,  이수인 ,  오덕길

IPC: H04N7/015

CPC classification number: H04N5/08

Abstract: PURPOSE: A method for efficiently detecting a synchronous byte in an MPEG-2 transport stream is provided to CONSTITUTION: A current state is stored in a register which is a state indicator having three bits size using a current value of bits which continuously are inputted and a previous state of the current value. A synchronous byte signal of eight bits is detected. the synchronous byte signal of which is 01000111, when an MPEG-2 transport stream is inputted in the order of 0-1-0-0-0-1-1-1, a state in the state indicator is In a change of a state indicator having three bit size in an MPEG-2 transport stream increased one by one from a state '1', passes by a state '8', changes to the state '1' to generate the synchronous byte signal. When an MPEG-2 transport stream is not inputted in the order of 0-1-0-0-0-1-1-1, a state in the state indicator is increased one by one from a state '1' but does not go to the state '8'.

Abstract translation: 目的：提供一种用于有效检测MPEG-2传输流中的同步字节的方法。构成：当前状态存储在使用连续输入的位的当前值的具有三位大小的状态指示符的寄存器中，并且 当前值的先前状态。 检测到8位的同步字节信号。 其同步字节信号为01000111，当以0-1-0-0-0-1-1-1的顺序输入MPEG-2传输流时，状态指示符的状态为 在MPEG-2传输流中具有三位大小的状态指示符从状态“1”逐个增加，经过状态“8”，变为状态“1”以产生同步字节信号。 当不以0-1-0-0-0-1-1-1的顺序输入MPEG-2传输流时，状态指示符的状态从状态“1”逐个增加，但不 去国家'8'。

公开(公告)号：KR100243416B1

公开(公告)日：2000-02-01

申请号：KR1019970069520

申请日：1997-12-17

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 조성배 ,  이수인 ,  오덕길

IPC: H04N7/08

Abstract: 본 발명은 엠펙-2(MPEG-2) 전송 스트림(TS:Transport Stream) 재다중화기 및 재다중화 방법에 관한 것으로, TS패킷열 데이터를 입력받아 일시 저장하기 위한 FIFO와, PCR유무를 확인하여 PCR을 포함하고 있는 경우 시간 지연을 계산한 후 PCR을 정정하는 PCR 정정부를 구비하여 복수개로 배열되는 입력 취급기와; 입력 취급기에 클럭을 제공하기 위한 27MHz 오실레이터와; 입력 취급기로부터 FIFO에 저장되어 있는 TS패킷열의 양을 나타내는 상태 정보를 전달받아 스케줄링 알고리즘에 따라 다음에 다중화할 입력 취급기를 결정하고 이를 해당 입력 취급기에게 알려주는 스케쥴러와; 다중화 선택신호를 받은 입력 취급기가 출력 클럭 및 TS 프레임 동기에 맞춰 하나의 TS패킷열을 출력하게 하고, 출력된 TS패킷열에 PCR정보가 포함되어 있는 경우에는 PCR 정정부를 이용하여 원래의 PCR값 위치에 정정된 PCR값으로 대체하여 출력하게 하기 위한 TDM 다중화기로 구성하여 PCR을 정정할 때 모든 입력 전송 스트림패킷열이 동일하게 갖는 최소 지연 시간을 고려하여 PCR값을 정정함으로써 다중화 과정에서 발생하는 램덤한 시간지연에 대해서도 MPEG복호기가 안정적으로 복호과정을 수행할 있게 한다.