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31.发明公开TDD 또는 TDMA 시스템에서 데이터 전송률을 유지하기 위한 디지털 신호의 필터링 방법 및 그 방법이 적용된 통신 시스템 审中-实审在TDD或TDMA系统中维护数据传输速率的过滤方法及其通信系统
公开(公告)号：KR1020160078626A
公开(公告)日：2016-07-05
申请号：KR1020140188151
申请日：2014-12-24
Applicant: 한국전자통신연구원
Inventor： 이성준
CPC classification number: H04B1/16 , H03F3/24 , H03H21/0027 , H04B1/0028 , H04B1/0475 , H04B2001/0408 , H04J3/00 , H04J3/0608 , H04L25/03834 , H04L27/2634 , H03H17/0009 , H03H17/0291 , H03H2017/0081 , H04L25/03012
Abstract: 본발명에따른디지털필터는, 디지털신호에필터를적용함에있어상기디지털필터의단위펄스응답과상기디지털신호의순환컨벌루션으로그 기능을구현하는것이다. 또한, 본발명에따른디지털필터링의결과로발생한입력신호대비한출력신호의구성순서변경을바로잡기위해, 송신기에서순환컨벌루션후에필터샘플지연만큼반대로순환이동하거나또는, 수신기에서동기(synchronization)를잡은후 필터지연시간만큼동기시점이전의신호를획득한후 신호를재구성하는것이다.
Abstract translation: 根据本发明的数字滤波器在对数字信号应用滤波器时，是通过数字滤波器的单位脉冲响应和数字信号的循环卷积实现其功能。 此外，为了校正与根据本发明的数字滤波产生的输入信号相比较的输出信号的配置顺序变化，只要在循环后的滤波器采样延迟时间，信号就沿相反方向循环移位 或者在接收机实现同步之后重新配置信号，然后只要滤波器延迟时间，就在同步时间之前获取信号。 在TDD或TDMA通信系统的发射机中对数字信号进行滤波的方法中的数字信号的滤波方法包括以下步骤：发射机的信道滤波器输入由多个采样构成的数字信号;以及 在输入到发射机的信道滤波器的数字信号与数字滤波器的单位脉冲响应之间执行循环卷积的步骤。
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公开(公告)号：KR1020150031713A
公开(公告)日：2015-03-25
申请号：KR1020130111272
申请日：2013-09-16
Applicant: 한국전자통신연구원
CPC classification number: H04L7/0016 , H04L27/366 , H04L27/02 , H04L27/361
Abstract: 본 발명은 신호의 크기 성분과 위상 성분을 분리하여 처리한 후 재결합하여 송신하는 장치에서 크기 성분과 위상 성분 간에 발생하는 시간차를 보정하는 방법을 제공한다. 이를 위해, 본 발명의 크기 성분과 위상 성분 간의 시간차를 보정하는 방법은 디지털 신호 처리 동작과 아날로그 신호 처리 동작에서 크기 성분과 위상 성분 중 적어도 하나에 시간 지연을 적용하여 시간차를 보정하거나, 전처리기를 구비하여 크기 성분 또는 위상 성분에 시간 지연을 적용하여 시간차를 보정한다.
Abstract translation: 本发明提供了一种用于校正在单独处理信号的幅度分量和相位分量的装置中的幅度分量和相位分量之间产生的时间差的方法，然后将组件复合并发送信号。 根据本发明，用于校正幅度分量和相位分量之间的时间差的方法包括以下步骤：通过在数字时段期间在幅度分量和相位分量中的至少一个上施加时间延迟来校正时间差 信号处理操作和模拟信号处理操作; 或者通过预处理器对幅度分量或相位分量施加时间延迟来校正时间差。
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公开(公告)号：KR1020150030512A
公开(公告)日：2015-03-20
申请号：KR1020130109874
申请日：2013-09-12
Applicant: 한국전자통신연구원
IPC: H03F1/30
CPC classification number: H03F3/245 , H03F1/025 , H03F3/195 , H03F2200/102 , H03F2200/331 , H03F2200/336 , H03F2200/511 , H03F2200/78 , H03M7/3004
Abstract: Disclosed is a method of generating a driving signal for driving a dual-mode supply modulator. It includes a step of comparing the level of a complex signal with a set threshold value after obtaining the level of the complex signal from a baseband signal to be transmitted; a step of outputting a digital board output signal of a first logical level through a digital analog converter if the present level of the complex signal is greater than the set threshold value or there is a result that it is greater than the set threshold value by comparison of previous N numbers; and a step of outputting the digital board output signal of a second logical level through the digital analog converter if the present level of the complex signal is less than the set threshold value or there is no result that it is greater than the set threshold value by comparison of previous N numbers.
Abstract translation: 公开了一种产生用于驱动双模式电源调制器的驱动信号的方法。 它包括在从要发送的基带信号获得复信号的电平之后，将复信号的电平与设定的阈值进行比较的步骤; 如果复数信号的当前电平大于设定的阈值，则通过数字模拟转换器输出第一逻辑电平的数字电路板输出信号的步骤，或者通过比较，存在比设定的阈值大的结果 以前的N个数字; 以及如果复数信号的当前电平小于设定的阈值，则通过数字模拟转换器输出第二逻辑电平的数字板输出信号的步骤，或者没有结果大于设定的阈值， 比较以前的N个数字。
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公开(公告)号：KR1020140075840A
公开(公告)日：2014-06-20
申请号：KR1020120136673
申请日：2012-11-29
Applicant: 한국전자통신연구원
Abstract: The present invention relates to a system and a method for refining an address database and, more specifically, to a system and a method for refining an address database for improving the performance of an automated mail sorting machine, based on image recognition. The system for refining an address database for improving the performance of an automated mail sorting machine includes: a UI control unit to receive data regarding an address database from the outside; a manual refining unit to modify a field value of the address database, based on the received data; and an automatic refining unit to modifying a data field of a lot number address or a road name address and to update the address database to be connected with a modified delivery point address, with respect to an error which occurs when converting address information of a delivery point into a unique code by using the address database.
Abstract translation: 本发明涉及一种用于精简地址数据库的系统和方法，更具体地说，涉及一种基于图像识别来改进地址数据库以提高自动邮件分类机的性能的系统和方法。 用于改善地址数据库以提高自动邮件分类机的性能的系统包括：UI控制单元，用于从外部接收关于地址数据库的数据; 基于接收到的数据来修改地址数据库的字段值的手动精炼单元; 以及自动精炼单元，用于修改地址数据地址或道路名称地址的数据字段，并且相对于在转换地址信息的转换时发生的错误来更新要与修改的交付点地址连接的地址数据库 通过使用地址数据库指向唯一的代码。
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公开(公告)号：KR1020140030358A
公开(公告)日：2014-03-12
申请号：KR1020120093478
申请日：2012-08-27
Applicant: 한국전자통신연구원
CPC classification number: H04L25/4902 , H03K7/08 , H03M3/504 , H04B14/062
Abstract: Disclosed are a delta-sigma modulator and a transmitter including the same. The delta-sigma modulator included in a transmitter includes a first integrator to integrate an input signal and a first feedback signal; a second integrator to integrate an output signal of the first integrator and a second feedback signal; a first comparator and a second comparator to compare an output of the second integrator with a reference signal for outputting a first comparison signal and a second comparison signal, respectively; a first DAC and a second DAC to generate a first signal and a second signal corresponding to the first comparison signal and the second comparison signal, respectively; a delay unit to generate delay signals obtained by delaying the first comparison signal and the second comparison signal by a preset time; and an output DAC to generate an output signal at a multi-voltage level corresponding to the delay signals. Accordingly, the performance and efficiency of the transmitter can be improved. [Reference numerals] (509) First DAC; (511) Second DAC; (515) Delay unit; (517) Output DAC; (519) Offset compensator; (521) Time constant compensator; (523) Differential clock generator; (525) Reference signal generator
Abstract translation: 公开了一种Δ-Σ调制器和包括其的发射器。 包括在发射机中的Δ-Σ调制器包括：第一积分器，用于积分输入信号和第一反馈信号; 第二积分器，用于积分第一积分器的输出信号和第二反馈信号; 第一比较器和第二比较器，用于将第二积分器的输出与用于分别输出第一比较信号和第二比较信号的参考信号进行比较; 第一DAC和第二DAC，分别产生对应于第一比较信号和第二比较信号的第一信号和第二信号; 延迟单元，用于产生通过将第一比较信号和第二比较信号延迟预定时间而获得的延迟信号; 以及输出DAC，以产生与延迟信号对应的多电压电平的输出信号。 因此，可以提高发射机的性能和效率。 （附图标记）（509）第一DAC; （511）第二DAC; （515）延迟单位; （517）输出DAC; （519）偏移补偿器; （521）时间常数补偿器; （523）差分时钟发生器; （525）参考信号发生器
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Patent Agency Ranking
公开(公告)号：KR1020120118340A
公开(公告)日：2012-10-26
申请号：KR1020110035840
申请日：2011-04-18
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2614 , H03F1/025
Abstract: PURPOSE: A signal amplifier, a wireless transmitter, and a method thereof are provided to increase amplifier efficiency by supplying a bias to an amplifier based on size change of a pulse quantization signal. CONSTITUTION: A signal amplification device(10) comprises a signal modulation part(100), a bias generating part(120), and a signal amplification part(130). The signal modulation part outputs a digitized multilevel quantization signal by quantizing an envelope signal into a multilevel. The bias generating part tracks size modulation of a pulse quantization signal inputted into the signal amplification part. The bias generating part provides a bias to the signal amplification part based on the tracking result. The signal amplification part amplifies the pulse quantization signal in which the multilevel quantization signal and a phase signal are combined. [Reference numerals] (100) Signal modulation part; (120) Bias generating part; (130) Signal amplification part
Abstract translation: 目的：提供信号放大器，无线发射机及其方法，以通过基于脉冲量化信号的大小变化向放大器提供偏置来提高放大器效率。 构成：信号放大装置（10）包括信号调制部（100），偏置产生部（120）和信号放大部（130）。 信号调制部通过将包络信号量化为多级，输出数字化的多级量化信号。 偏置产生部跟踪输入到信号放大部的脉冲量化信号的大小调制。 偏置产生部件基于跟踪结果向信号放大部分提供偏置。 信号放大部分放大其中组合了多电平量化信号和相位信号的脉冲量化信号。 （附图标记）（100）信号调制部; （120）偏压发生部; （130）信号放大部分
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公开(公告)号：KR100959054B1
公开(公告)日：2010-05-20
申请号：KR1020070120715
申请日：2007-11-26
IPC: H04B17/00
Abstract: 본 발명은 다중 안테나 시스템의 성능을 점검하기 위한 유선링크 시험장치에 관한 것으로, 다중 안테나 시스템에 대한 무선채널 환경을 유선링크를 이용하여 모사함으로써 실외 무선연동 시험에 앞서 실내에서 다중 안테나 시스템의 성능을 점검할 수 있도록 하는, 다중 안테나 시스템의 성능을 점검하기 위한 유선링크 시험장치를 제공하고자 한다.
이를 위하여, 본 발명은 유선링크 시험장치에 있어서, 다중 안테나 시스템에 대한 무선링크에 대응하여 유선링크를 구성하고, 유선링크상에 배치된 각각의 가변소자를 이용하여 무선링크 특성을 모사하기 위한 모사수단; 및 상기 무선링크 특성을 나타내기 위해 상태변경 시간 및 상태변경 횟수에 따른 상기 가변소자의 소정값을 기 저장하고, 상기 가변소자의 소정값에 따라 상기 가변소자를 제어하기 위한 제어수단을 포함한다.
다중 안테나 시스템, 유선시험, 무선채널 환경, 유선링크 시험장치, 무선링크 특성, 경로손실, 페스트 페이딩(fast fading)-
公开(公告)号：KR1020080050955A
公开(公告)日：2008-06-10
申请号：KR1020070062327
申请日：2007-06-25
Applicant: 한국전자통신연구원
CPC classification number: G06Q50/32 , G06F15/0225 , G06K19/06103
Abstract: A method for coding mail address information video is provided to improve the productivity of a video coding operation. When mail images in which address information of a mail has not been read are inputted on a monitor of a video coding desk, the mail images are distributed according to each address information recognition level(S10). The mail images having a similar arrival order are grouped such that their address information-recognized area is the same to thus determine a video coding priority level(S20). It is checked whether address information of the mail images are number information or character information(S30). If the address information of the mail image is number information, the address information is video-coded to a delivery store code through simple keypad input(S40). If the address information is character information, corresponding address information automatically selected based on the pass processing statistical information is selected or the corresponding address information is video-coded into the delivery store code through character keypad input(S50).
Abstract translation: 提供了一种编码邮件地址信息视频的方法，以提高视频编码操作的生产率。 当邮件地址信息未被读取的邮件图像被输入到视频编码台的监视器上时，根据每个地址信息识别级别分发邮件图像（S10）。 具有类似到达顺序的邮件图像被分组，使得其地址信息识别区域相同，从而确定视频编码优先级（S20）。 检查邮件图像的地址信息是否是号码信息或字符信息（S30）。 如果邮件图像的地址信息是号码信息，则通过简单的键盘输入将地址信息视频编码到传送存储代码（S40）。 如果地址信息是字符信息，则选择基于通过处理统计信息自动选择的相应地址信息，或通过字符键盘输入将对应的地址信息视频编码到传送存储器代码中（S50）。
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