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41.发明公开비접촉식 자기유도를 이용한 충전과 신호의 송수신이가능한 무선 단말기 및 핸즈프리 기능을 구비한 무선단말기 충전장치 失效无线终端可以通过使用非接触磁感应和收发信号和无线终端充电无线功能的设备进行充电
公开(公告)号：KR1020030045305A
公开(公告)日：2003-06-11
申请号：KR1020010075782
申请日：2001-12-03
Applicant: 한국전자통신연구원
IPC: H04B5/00
CPC classification number: H04B5/0075 , H04M1/6041
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：提供一种能够通过使用非接触磁感应和收发信号进行充电的无线终端以及具有免提功能的无线终端充电装置，以通过使用非接触式近磁感应来实现充电而不插入连接器 方法和收发信号，从而同时执行充电功能和免提功能。 构成：无线终端（610）包括如下。 电力接收装置（611）将电流发送到电池（612）。 电池（612）对电流进行充电，并向每个单元供电。 无线终端机身（620）进行无线通信。 控制器（622）控制由感应电流引起的充电，发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），或者发送从输入/输出单元（631）或处理器 （633）连接到终端主体（620）。 内置语音输入/输出单元（631）输入麦克风的语音信号或输出语音信号。 收发信号处理器（633）将身体（620）的语音信号发送到无线终端充电装置，并将从充电装置接收到的语音信号发送到切换单元（632）。
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公开(公告)号：KR100325690B1
公开(公告)日：2002-02-27
申请号：KR1019990054895
申请日：1999-12-03
Applicant: 한국전자통신연구원
IPC: H04B7/15
CPC classification number: H04L27/2272 , H04L2027/003 , H04L2027/0055 , H04L2027/0067 , H04L2027/0085
Abstract: 본발명은고속위성통신등에적합한 LMS 기법을이용한결정-지향반송파복원장치및 방법에관한것으로서, 특히기저대역신호를복소수영역(complex domain)에서처리하여반송파의주파수와위상을복원하는반송파복원장치및 방법에관한것이다. 본발명에따른결정-지향반송파복원장치는, 외부입력신호의반송파주파수오프셋을보상하여상기입력신호의반송파주파수를복원하기위한주파수검출수단과, 상기주파수검출수단으로부터출력된신호의위상오프셋을보상하여상기주파수검출수단에의해주파수가검출된신호의반송파위상을검출하기위한위상검출수단과, 상기위상검출수단의출력신호에적합한소정의복소수를결정하여, 결정한상기소정의복소수를상기주파수검출수단과상기위상검출수단으로출력하는복소수결정수단을포함한다.
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公开(公告)号：KR100299661B1
公开(公告)日：2001-09-03
申请号：KR1019970069521
申请日：1997-12-17
IPC: H03M1/06
Abstract: PURPOSE: A method and an apparatus for evaluating a DC offset in a digital quadrature demodulator are provided to improve capacity of a demodulator by removing a direct current component. CONSTITUTION: A hard limiter(91) is used for limiting an amplitude of an output signal of an A/D converter(40). A filter(+Mean)(92) is used for receiving only positive signals of A/D output signals and calculating a mean value for absolute values of the positive signals. A filter(-Mean)(93) is used for receiving only negative signals of the A/D output signals and calculating a mean value for absolute values of the negative signals. An adder adds an output of the filter(+Mean)(92) to an output of the filter(-Mean)(93). A loop filter(95) is used for filtering an output of the adder and outputting an offset control signal to the A/D converter(40).
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公开(公告)号：KR1020010063792A
公开(公告)日：2001-07-09
申请号：KR1019990061886
申请日：1999-12-24
Applicant: 한국전자통신연구원
IPC: H01Q15/00
Abstract: PURPOSE: An active phased array antenna system for a mobile satellite communication and a beam control method for satellite tracking are provided to track a satellite at a high speed, achieve a high gain and employ a wider electronic tracking range. CONSTITUTION: A receiving channel signal beam forming unit passes a plurality of channels through a phase shifter and combines signals. A tracking signal beam forming unit makes plural channel receiving signals into four groups and passes the same through the phase shifter to combine the signals. A tracking signal detecting unit detects size of the signal formed by the tracking signal beam forming unit. A phase tracking processing unit calculates a phase pointing error relative to the beams of the tracking signals based on signal strength detected by the tacking signal detecting unit and calculates a phase pointing error with respect to the receiving channel signal beams and the transmission signal beams. A tracking beam control unit calculates a phase variation value from the satellite pointing error of the tracking signal beams and controls a phase value of the phase shifter inside the receiving active phased array antenna. A receiving channel beam control unit calculates a phase variation value from the satellite pointing error of the receiving channel signal beams and controls the phase value of the phase shifter inside the receiving channel signal beam forming unit. A transmitting beam control unit calculates a phase variation from the satellite pointing error of the transmission signal beams and controls the phase value of the phase shifter inside the transmitting active phased array antenna.
Abstract translation: 目的：提供用于移动卫星通信的有源相控阵天线系统和用于卫星跟踪的波束控制方法，以高速跟踪卫星，实现高增益并采用更广泛的电子跟踪范围。 构成：接收信道信号波束形成单元使多个信道通过移相器并组合信号。 跟踪信号波束形成单元将多个信道接收信号分成四组并将其通过移相器以组合信号。 跟踪信号检测单元检测由跟踪信号波束形成单元形成的信号的大小。 相位跟踪处理单元基于由跟踪信号检测单元检测出的信号强度来计算相对于跟踪信号的波束的相位指示误差，并计算相对于接收信道信号波束和发送信号波束的相位指示误差。 跟踪光束控制单元根据跟踪信号光束的卫星指向误差来计算相位变化值，并且控制接收有源相控阵列天线内的移相器的相位值。 接收信道波束控制单元根据接收信道信号波束的卫星指向误差来计算相位变化值，并控制接收信道信号波束形成单元内的移相器的相位值。 发送波束控制单元根据发送信号波束的卫星指向误差来计算相位变化，并控制发送有源相控阵天线内的移相器的相位值。
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公开(公告)号：KR102207829B1
公开(公告)日：2021-01-26
申请号：KR1020140059505
申请日：2014-05-19
Applicant: 한국전자통신연구원
Abstract: 본발명은 VCM(Variable Coding and Modulation) 또는 ACM(Adaptive Coding and Modulation) 환경의위성방송이나통신을위한위성서비스에서프레임동기및 MODCOD(Modulation Code rate) 검출이필요한 MMSE(minimum-mean square error) 등화기의적용을위하여왜곡이나인접심볼간섭을제거개선함으로써, 대역폭당위성신호의송수신주파수효율, 또는대역폭당전송효율(Spectral Efficiency, S.E)을개선할수 있는통신장치및 방법에관한것이다.
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Patent Agency Ranking
公开(公告)号：KR101694517B1
公开(公告)日：2017-01-10
申请号：KR1020120116772
申请日：2012-10-19
Applicant: 한국전자통신연구원
Abstract: 디지털방송시스템의주파수오프셋추정장치는수신한물리계층프레임의 헤더를구성하고있는시작점정보(Start Of Frame, SOF) 심볼들과, 변조방식및 부호율정보제공을위한물리계층시그널링정보(Physical Layer Signaling Code, PLSC) 심볼들을이용하여주파수오프셋을추정한다.
Abstract translation: 用于估计数字广播系统中的频率偏移的方法通过使用形成接收到的物理层帧的头部的帧（SOF）符号和用于提供调制模式和码率信息的物理层信令码（PLSC）符号来估计频率偏移 。 （附图标记）（410）接收单元; （420）近似频率估计单元; （430）解码单元; （440）精细频率估计单元
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公开(公告)号：KR101687243B1
公开(公告)日：2016-12-16
申请号：KR1020120074998
申请日：2012-07-10
Applicant: 한국전자통신연구원
Abstract: 본발명에서는 TDM/TDMA 형태의위성전송및 접속시스템에서데이터패킷수신시 프리엠블과포스트엠블을이용하여초기위상의시작지점과종료지점을계산하고, 파일럿심볼을이용하여초기위상의포워드매트릭및 백워드매트릭연산을수행하여간단히위상오차를계산함으로서위상잡음에강인하게하여위성통신/방송시스템에서위상잡음으로인한성능열화를개선시킬수 있다. 또한, 개선된위상오차계산으로위상잡음을줄여수신단에서신호를보다간단히복원할수 있다.
Abstract translation: 目的：提供一种耐高效率卫星传输的相位噪声的数据发送和接收方法及其装置，以简单地计算相位误差并改善由相位噪声引起的性能下降。 构成：用于高效率卫星传输的数据发送和接收装置包括初始相位计算单元（800），符号转换计算单元（802）和相位误差估计单元（804）。 初始相位计算单元使用接收到的数据分组的前同步码和后同步码来计算初始相位信息。 符号转换计算单元通过使用由初始相位计算单元计算的初始相位信息和接收数据分组的导频符号来执行前向和后向量度计算来计算接收数据分组的符号转换。 相位误差估计单元使用导频符号在接收数据分组的导频符号定位点处计算相位误差，并将计算出的相位误差提供给符号转换计算单元。 （附图标记）（800）初始相位计算单元; （802）符号转换计算单元; （804）相位误差估计单元; （AA）接收数据包;
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公开(公告)号：KR101625213B1
公开(公告)日：2016-06-07
申请号：KR1020100131576
申请日：2010-12-21
Applicant: 한국전자통신연구원
CPC classification number: H04L1/0003 , H04L1/0009 , H04L1/201
Abstract: 위성단말장치로부터수신된패킷의오류여부를판단하고, 그판단결과에따라모드코드값을계산하여위성단말장치로전송함으로써위성단말장치의패킷전송과정에서패킷손실을줄이는기술에관한것으로, 일실시예에따른위성단말장치와통신하는중심국에서의역방향링크패킷오류판단방법은위성단말장치로부터복수의역방향링크패킷들을수신하는단계와, 역방향링크패킷들을순차적으로조합하여제1 역방향링크패킷을생성하고, 제1 역방향링크패킷과새로이수신되는제2 역방향링크패킷을비교분석하여패킷의오류여부를판단하는단계를포함함으로써, 실제트래픽에대한수율변화에근거하여위성단말장치가역방향링크로패킷전송시패킷손실을줄일수 있다.
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公开(公告)号：KR1020140104659A
公开(公告)日：2014-08-29
申请号：KR1020130018387
申请日：2013-02-21
Applicant: 한국전자통신연구원
IPC: H04L12/721
CPC classification number: H04L1/0055 , H03M13/3723 , H03M13/3905 , H03M13/3972
Abstract: The present invention relates to a map decoder having low latency and an operation method thereof, the device comprising a branch metric calculation block for calculating a branch metric based on a reception signal; a processor control block for de-multiplexing the reception signal of a trellis section, an Extrinsec vector, and the calculated branch metric value; and a processor for calculating a path metric entering into each state node of the specific trellis section, for compensating for the calculated path metric, and for calculating the state metric reflected to the next trellis section using the compensated path metric.
Abstract translation: 本发明涉及具有低等待时间的地图解码器及其操作方法，该装置包括：用于基于接收信号计算分支度量的分支度量计算块; 处理器控制块，用于解复用网格段的接收信号，Extrinsec向量和所计算的分支度量值; 以及处理器，用于计算进入特定网格部分的每个状态节点的路径度量，以补偿所计算的路径度量，以及用于使用补偿路径度量计算反映到下一个网格部分的状态度量。
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公开(公告)号：KR1020140039371A
公开(公告)日：2014-04-02
申请号：KR1020120104500
申请日：2012-09-20
Applicant: 한국전자통신연구원
IPC: H04L25/02
CPC classification number: H04N21/6193 , H04L1/0041 , H04N21/2383
Abstract: Provided are an apparatus for processing data, which initializes baseband frame data newly inputted and randomizes the baseband frame data by the unit of byte, and a method thereof. Additionally, provided are a system and a method for processing data, wherein the system randomizes baseband frame data by the unit of byte to construct the baseband frame data and to encode the baseband frame data in performing a mode adaptation process and a stream adaptation process for received TS packets. [Reference numerals] (210) Initialization part; (220) Randomization part
Abstract translation: 提供了一种用于处理数据的装置，其初始化新输入的基带帧数据并以基站为单位随机化基带帧数据及其方法。 此外，提供了一种用于处理数据的系统和方法，其中系统以基本单位随机化基带帧数据，以构建基带帧数据，并对基带帧数据进行编码以执行模式适应过程和流适配过程 收到TS包。 （附图标记）（210）初始化部; （220）随机化部位
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