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21.发明授权
公开(公告)号：KR100453695B1
公开(公告)日：2004-10-20
申请号：KR1020020027936
申请日：2002-05-20
Applicant: 전자부품연구원
IPC: H04L27/26
Abstract: PURPOSE: A method for interpolating a frequency and a phase offset to improve resolution of DFT(Discrete Fourier Transform) and FFT(Fast Fourier Transform) is provided to improve the frequency of DFT algorithm and the phase resolution without increasing a DFT size by using an internally dividing point. CONSTITUTION: A sampling process is performed to sample received signals according to a predetermined period(101). The received data stream is converted to a frequency area to obtain a frequency spectrum(102). Two continuous samples having the maximum sum are selected from continuous samples of the frequency area(103). A fine frequency offset is estimated by using an internally dividing point of the selected samples(104). A total frequency offset is obtained by adding a coarse frequency offset to the estimated fine frequency offset(105).
Abstract translation: 目的：提供一种内插频率和相位偏移以提高DFT（离散傅立叶变换）和FFT（快速傅立叶变换）的分辨率的方法，以通过使用一种改进DFT算法的频率和相位分辨率而不增加DFT大小 内部划分点。 构成：执行采样过程以根据预定周期对接收到的信号进行采样（101）。 接收的数据流被转换为频率区域以获得频谱（102）。 从频率区域（103）的连续样本中选择具有最大和的两个连续样本。 通过使用所选样本的内部分割点来估计精确的频率偏移（104）。 通过将粗略频率偏移与估计的精细频率偏移相加（105）来获得总频率偏移。
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公开(公告)号：KR1020040067707A
公开(公告)日：2004-07-30
申请号：KR1020030004940
申请日：2003-01-24
Applicant: 전자부품연구원
IPC: H04J13/12
CPC classification number: H04J13/004 , H04J13/0077 , H04L1/0041 , H04L1/0061
Abstract: PURPOSE: An envelope binary orthogonal modulation and demodulation system is provided to execute envelope binary orthogonal modulation for data so as to transmit the data at a mass data rate and a variable data rate. CONSTITUTION: An envelope binary orthogonal modulator consists of a serial/parallel converter(200), an envelope encoder(210), an orthogonal code generator(220), a plurality of binary orthogonal modulation parts(230,240,250,260), and a parallel combiner(270). The serial/parallel converter(200) converts in-phase or orthogonal phase serial data, separated from a signal splitter, into a data bit(b1), a group of data bits(b0-b2), or many groups of data bits((b0-b2),(b3-b5)(b6-b8)) according to a data rate control signal. The envelope encoder(210) combines many groups of data bits((b0-b2),(b3-b5)(b6-b8)) converted at the serial/parallel converter(200) respectively and generates a plurality of parity bits(r0,r1,r2). The orthogonal code generator(220) generates many groups of orthogonal codes((c0-c3)(c4-c7)(c8-c11)(c12-c15)). The binary orthogonal modulation parts(230,240,250,260) select their respective orthogonal codes among the orthogonal codes((c0-c3)(c4-c7)(c8-c11)(c12-c15)) according to many groups of data bits((b0-b2),(b3-b5)(b6-b8)) and the parity bits(r0,r1,r2) and adjust the codes. The parallel combiner(270) sums up the orthogonal codes, outputted from the binary orthogonal modulation parts(230,240,250,260), in parallel and generates envelope binary orthogonal modulation data.
Abstract translation: 目的：提供包络二进制正交调制和解调系统，对数据执行包络二进制正交调制，以便以大量数据速率和可变数据速率传输数据。 构成：包络二进制正交调制器由串并行转换器（200），包络编码器（210），正交码发生器（220），多个二进制正交调制部分（230,240,250,260）和并行组合器（270）组成 ）。 串行/并行转换器（200）将从信号分离器分离的同相或正交相位串行数据转换为数据位（b1），一组数据位（b0-b2）或许多数据位组 （b0-b2），（b3-b5）（b6-b8））。 包络编码器（210）分别组合在串行/并行转换器（200）处转换的许多数据位组（（b0-b2），（b3-b5）（b6-b8）），并产生多个奇偶校验位（r0 ，R1，R2）。 正交码产生器（220）产生许多正交码组（（c0-c3）（c4-c7）（c8-c11）（c12-c15））。 二进制正交调制部分（230,240,250,260）根据多组数据位（（b0-c3）（c4-c7）（c8-c11）（c12-c15））选择它们各自的正交码 b2），（b3-b5）（b6-b8））和奇偶校验位（r0，r1，r2）并调整代码。 并行组合器（270）并行地对从二进制正交调制部（230,240,250,260）输出的正交码求和，生成包络二进制正交调制数据。
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公开(公告)号：KR100436207B1
公开(公告)日：2004-06-12
申请号：KR1020020034001
申请日：2002-06-18
Applicant: 전자부품연구원
Abstract: PURPOSE: A home RF system using channel estimation and DC offset compensation methods is provided to estimate a channel by using a TS(Training Sequence) field and a decision feedback method of a PDU, and to compensate for a DC offset by using the TS, thereby improving performance. CONSTITUTION: A transmission unit comprises as follows. A scrambler(100) changes a frequency. A symbolizer(200) symbolizes a bit-unit signal. An encoder(300) encodes a transmission signal. A TS field adder(400) adds a TS field to the transmission signal. An FSK(Frequency Shift Keying) modulator(500) changes a frequency of a high frequency current into a signal. A receiving unit comprises as follows. An FSK demodulator(600) compensates a DC offset. A decoder(700) decodes the encoded signal. A desymbolizer(800) desymbolizes the symbolized signal. A descrambler(900) restores the changed frequency.
Abstract translation: 目的：提供一种使用信道估计和DC偏移补偿方法的家庭RF系统，通过使用TS（训练序列）字段和PDU的判决反馈方法来估计信道，并通过使用TS来补偿DC偏移， 从而提高性能。 组成：传输单元如下。 扰频器（100）改变频率。 符号器（200）象征一个比特单位信号。 编码器（300）编码传输信号。 TS字段加法器（400）将TS字段添加到传输信号。 FSK（频移键控）调制器（500）将高频电流的频率改变为信号。 接收单元如下所述。 FSK解调器（600）补偿DC偏移。 解码器（700）对编码信号进行解码。 去象限器（800）去除符号化的信号。 解扰器（900）恢复改变的频率。
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公开(公告)号：KR1020030097187A
公开(公告)日：2003-12-31
申请号：KR1020020034447
申请日：2002-06-20
Applicant: 전자부품연구원
IPC: H04L12/56
CPC classification number: H04W28/0236 , H04W28/18
Abstract: PURPOSE: A method for selecting packets according to a channel environment in a local area wireless PAN system is provided to satisfy a required peak throughput and a packet error rate by selecting packets corresponding to a channel state without lowering data transmission rate and spectrum efficiency. CONSTITUTION: One packet is exchanged between a master slot and a salve slot. The packet of a Bluetooth system is formed of an access code, a packet header, and a payload. A bit error rate is measured by the access code of the transmitted packet. A state of the channel is predicted by the measured bit error rate. The packet is selected by considering throughput and transmission delay of the Bluetooth system according to the predicted state of the channel.
Abstract translation: 目的：提供一种根据局域无线PAN系统中的信道环境选择数据包的方法，通过选择与信道状态相对应的数据包来满足所需的峰值吞吐量和数据包错误率，而不会降低数据传输速率和频谱效率。 构成：在主插槽和插槽之间交换一个数据包。 蓝牙系统的分组由接入码，分组报头和有效载荷构成。 误码率由发送包的接入码测量。 通过测量的位错误率来预测通道的状态。 根据信道的预测状态考虑蓝牙系统的吞吐量和传输延迟来选择分组。
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Patent Agency Ranking
公开(公告)号：KR1020030080829A
公开(公告)日：2003-10-17
申请号：KR1020020019652
申请日：2002-04-11
Applicant: 전자부품연구원
IPC: G06Q50/20
Abstract: PURPOSE: A device and a method for an education service through a physical growth model using the Internet and the wireless communication are provided to enhance the interest and the learning concentration of child by constructing a robot base, a house, and a castle gradually according to a learning step, and giving a gift as completing the growth model when a final education object is reached. CONSTITUTION: A learning data storing part(250) stores the learning data. An education part(230) performs the gradual education according to a preset learning step. A test part(240) performs a test after finishing the education of the education part(230), and elevates the learning step by one step according to a test result. A controller(220) outputs a control signal to grow the physical growth model according to the learning step, and transfers the gift if the learning step passes a final learning step. A gift giving device(400) grows the physical growth model and gives the gift according to the control of the controller(220).
Abstract translation: 目的：通过使用互联网和无线通信的物理增长模型，提供教育服务的设备和方法，以通过根据以下方式逐步构建机器人基地，房屋和城堡来增强孩子的兴趣和学习集中度 一个学习步骤，并且在达到最终教育对象时给予完成增长模式的礼物。 构成：学习数据存储部（250）存储学习数据。 教育部门（230）根据预设的学习步骤进行逐步教育。 测试部件（240）在完成教育部件（230）的教育之后执行测试，并且根据测试结果将学习步骤提升一步。 控制器（220）根据学习步骤输出控制信号以增长物理增长模型，并且如果学习步骤通过最终学习步骤则转移该礼物。 送礼装置（400）增加身体成长模型，并根据控制器的控制给予礼物（220）。
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公开(公告)号：KR100339661B1
公开(公告)日：2002-06-05
申请号：KR1020000023810
申请日：2000-05-03
Applicant: 전자부품연구원
IPC: H04B7/01
Abstract: 본 발명은 억세스 코드를 수신받는 블루투스 유니트의 수신 신호 채널 왜곡 보상 장치에 관한 것으로서, 수신 신호의 억세스 코드와 기 저장된 억세스 코드간의 상관성을 검출하여 소정 임계치를 넘는 억세스 코드 정보를 제공하는 상관성 검출 블록과; 상관성 검출 블록으로부터의 억세스 코드를 제공받아 수신 신호의 채널 왜곡을 보상하기 위한 최소 채널 왜곡 보상값 정보를 제공하는 수단과; 최소 채널 왜곡 보상값 정보와 상기 수신 신호를 승산하여 수신 신호의 채널 왜곡을 보상하는 승산기를 구비한다 .
따라서, 본 발명에서는 억세스 코드의 상관성을 이용하여 채널 왜곡을 보정한다는 효과가 있다.-
公开(公告)号：KR1020010100573A
公开(公告)日：2001-11-14
申请号：KR1020000023810
申请日：2000-05-03
Applicant: 전자부품연구원
IPC: H04B7/01
CPC classification number: H04B1/715 , H04B1/62 , H04L25/0224
Abstract: 본 발명은 억세스 코드를 수신받는 블루투스 유니트의 수신 신호 채널 왜곡 보상 장치에 관한 것으로서, 수신 신호의 억세스 코드와 기 저장된 억세스 코드간의 상관성을 검출하여 소정 임계치를 넘는 억세스 코드 정보를 제공하는 상관성 검출 블록과; 상관성 검출 블록으로부터의 억세스 코드를 제공받아 수신 신호의 채널 왜곡을 보상하기 위한 최소 채널 왜곡 보상값 정보를 제공하는 수단과; 최소 채널 왜곡 보상값 정보와 상기 수신 신호를 승산하여 수신 신호의 채널 왜곡을 보상하는 승산기를 구비한다 .
따라서, 본 발명에서는 억세스 코드의 상관성을 이용하여 채널 왜곡을 보정한다는 효과가 있다.-
公开(公告)号：KR1020030089996A
公开(公告)日：2003-11-28
申请号：KR1020020027937
申请日：2002-05-20
Applicant: 전자부품연구원
IPC: H04L27/26
Abstract: PURPOSE: An improved method for estimating a frequency offset of a mobile communication system is provided to obtain a diversity gain and improve the accuracy of the frequency estimation by combining estimated values of each frequency offset. CONSTITUTION: An estimating process of frequency offset is performed in each sub channel, respectively. A frequency offset combination process is performed to combine the estimated values of each frequency offset. A mobile communication system is formed with a multi-input/output channel modulation system, a transmission diversity system, a multi-code division multi-access system or a binary code division multi-access system. The multi input/output channel modulation system or transmission diversity system perform a frequency offset estimation process by using a predetermined mathematical expression.
Abstract translation: 目的：提供一种用于估计移动通信系统的频率偏移的改进方法，以通过组合每个频率偏移的估计值来获得分集增益并提高频率估计的精度。 构成：分别在每个子通道中执行频率偏移的估计过程。 执行频率偏移组合处理以组合每个频率偏移的估计值。 移动通信系统由多输入/输出信道调制系统，传输分集系统，多码分多址系统或二进制码分多址系统构成。 多输入/输出信道调制系统或传输分集系统通过使用预定的数学表达式来执行频偏估计处理。
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公开(公告)号：KR1020030084162A
公开(公告)日：2003-11-01
申请号：KR1020020022718
申请日：2002-04-25
Applicant: 전자부품연구원
Abstract: PURPOSE: A device for generating an accord in a network toy using a wireless communication and a method thereof are provided to activate an education by creating an accord using a network doll and toy, thereby increasing competitive powers of children. CONSTITUTION: If users operate terminals and constitute a network(S300), it is checked whether each terminal is connected(S301). An education or a game is started(S303). In the case that a game is started, the user controls a switch of the terminal for playing the game. After playing the network game, a winner is decided(S304), and a terminal of the winner is designated as the master terminal(S305). A controller of the master terminal constitutes a network based on the master among slave terminals according as the user inputs the switch(S306) and selects a music and an accord according as the user inputs the switch(S307). If a music is selected, the slave terminals generate each accord in accordance with a control signal of the master terminal, and a chorus is progressed(S308). If the music is terminated, the controller of the master terminal releases the constitution of the network(S310).
Abstract translation: 目的：提供一种使用无线通信在网络玩具中产生协议的装置及其方法，以通过使用网络娃娃和玩具创建协议来激活教育，从而增加儿童的竞争力。 规定：如果用户操作终端并构成网络（S300），则检查每个终端是否连接（S301）。 开始教育或游戏（S303）。 在开始游戏的情况下，用户控制用于玩游戏的终端的切换。 在玩网络游戏之后，决定胜利者（S304），将胜者的终端指定为主终端（S305）。 主终端的控制器根据用户输入开关构成从终端之间的主机的网络（S306），并根据用户输入开关选择音乐和协议（S307）。 如果选择音乐，则从机终端根据主终端的控制信号产生一致，并且合唱进行（S308）。 如果音乐终止，则主终端的控制器释放网络的构成（S310）。
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