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公开(公告)号：KR1020000025738A
公开(公告)日：2000-05-06
申请号：KR1019980042929
申请日：1998-10-14
Applicant: 삼성전자주식회사
IPC: H04B7/24
CPC classification number: H04B1/1036
Abstract: PURPOSE: A digital subscriber line system and a method is provided to stabilize digital subscriber line system and to prevent information loss occurred during initializing of receiver system. CONSTITUTION: A digital subscriber line system to receive a signal through communication channel from information source includes an automatic gain control unit(40), a timing detection unit(42), an equalizing unit(44), a slicing unit(45), an initializing control unit(48) and a non-restoration control unit(49). The automatic gain control unit controls gain of the received data. The timing detection unit restores a timing from an output signal of the automatic gain control unit. The equalizing unit eliminates noise from an output signal of the timing detection unit. The slicing unit detects a signal generated from the equalizing unit. The initializing control unit initializes the automatic gain control unit, the timing detection unit and the equalizing unit according to a change of the received signal. The non-restoration control unit prevents an initializing the automatic gain control unit and the equalizing unit, initialized by the initializing control unit, according to detection a predetermined signal among the received signal.
Abstract translation: 目的：提供数字用户线路系统和方法来稳定数字用户线路系统，防止在接收机系统初始化过程中发生信息丢失。 构成：通过信息源通过通信信道接收信号的数字用户线路系统包括自动增益控制单元（40），定时检测单元（42），均衡单元（44），切片单元（45）， 初始化控制单元（48）和非恢复控制单元（49）。 自动增益控制单元控制接收数据的增益。 定时检测单元从自动增益控制单元的输出信号恢复定时。 均衡单元消除来自定时检测单元的输出信号的噪声。 切片单元检测从均衡单元产生的信号。 初始化控制单元根据接收信号的变化来初始化自动增益控制单元，定时检测单元和均衡单元。 非恢复控制单元根据检测到接收信号中的预定信号，防止由初始化控制单元初始化的自动增益控制单元和均衡单元的初始化。
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公开(公告)号：KR100442818B1
公开(公告)日：2004-09-18
申请号：KR1019980042930
申请日：1998-10-14
Applicant: 삼성전자주식회사
IPC: H04L27/01
CPC classification number: H04L25/03057
Abstract: A decision feedback equalizer and a method for updating tap coefficients of the decision feedback equalizer are provided. The decision feedback equalizer (DFE) includes a first equalizer for reducing channel interference noise in an input signal, a second equalizer for generating a feedback signal for reducing remaining interference noise, and an update controller for controlling the first and the second equalizers so as to freeze the second equalizer when the first equalizer is updated and to freeze the first equalizer when the second equalizer is updated. The tap coefficients of the feedforward equalizer and the feedback equalizer are alternately initialized. It then becomes possible to stably converge the levels of respective tap coefficients without diverging them and to reduce the power used for updating the tap coefficients in a steady state.
Abstract translation: 提供了判定反馈均衡器和用于更新判决反馈均衡器的抽头系数的方法。 判决反馈均衡器（DFE）包括：第一均衡器，用于减小输入信号中的信道干扰噪声;第二均衡器，用于产生用于减少剩余干扰噪声的反馈信号;以及更新控制器，用于控制第一和第二均衡器，以便 当第一均衡器被更新时冻结第二均衡器，并且当第二均衡器被更新时冻结第一均衡器。 前馈均衡器和反馈均衡器的抽头系数被交替地初始化。 然后变得有可能在不发散它们的情况下稳定地收敛各个抽头系数的等级并且减少用于在稳定状态下更新抽头系数的功率。
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公开(公告)号：KR1020000025739A
公开(公告)日：2000-05-06
申请号：KR1019980042930
申请日：1998-10-14
Applicant: 삼성전자주식회사
IPC: H04L27/01
CPC classification number: H04L25/03057
Abstract: PURPOSE: A sequent update adaptive type equalizer and fabricating method thereof are to improve the power efficiency of the equalizer and perform the stable operation. CONSTITUTION: An adaptive equalizer comprises: a first equalizer(20) for sampling the input signals and reducing the interference noises in the sampled signals; a controller(30) for controlling the first equalizer to be varied by sampling the signals output from the first equalizer with the symbol units and applying the defined values; a slicer(50) for controlling the controller by using the output of the controller as the input, detecting the signals and feed backing the output signals into the controller; a second equalizer(60) for controlling the controller by using the output of the slicer and the output of the controller as the inputs to reduce the interference noises of the input signals and stabilizing the output of the controller; and an update controller(40) for controlling the update of the first and second equalizers as to reduce the interference noises in the input signals.
Abstract translation: 目的：后续更新自适应型均衡器及其制造方法是提高均衡器的功率效率并进行稳定运行。 构成：自适应均衡器包括：第一均衡器（20），用于对输入信号进行采样并减少采样信号中的干扰噪声; 控制器（30），用于通过用符号单元对从第一均衡器输出的信号进行采样来控制第一均衡器，并应用定义的值; 切片器（50），用于通过使用控制器的输出作为输入来控制控制器，检测信号并将输出信号馈送到控制器中; 第二均衡器（60），用于通过使用限幅器的输出和控制器的输出作为输入来控制控制器，以减少输入信号的干扰噪声并稳定控制器的输出; 以及用于控制第一和第二均衡器的更新以减少输入信号中的干扰噪声的更新控制器（40）。
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公开(公告)号：KR100455275B1
公开(公告)日：2004-12-17
申请号：KR1019980042929
申请日：1998-10-14
Applicant: 삼성전자주식회사
IPC: H04B7/24
CPC classification number: H04B1/1036
Abstract: A digital subscriber line receiving apparatus having resilience to HAM radio interference noise and a method therefore includes an automatic gain controller for amplifying a received signal level to a signal level having a predetermined magnitude, a timing recoverer for recovering timing from a signal output from the automatic gain controller, an equalizer for removing interference noise from a signal received from the timing recoverer, a slicer for detecting a digital value from a signal received from the equalizer, an initialization controller for resetting the receiving apparatus and initializing the automatic gain controller, the timing recoverer, and the equalizer when the signal to noise ratio of the output signal of the equalizer is smaller than a reference signal to noise ratio, and an update controller for preventing automatic gain controller and equalizer from being initialized by the initialization controller when HAM radio interference noise is detected in the received signal.
Abstract translation: 对HAM无线电干扰噪声具有适应能力的数字用户线路接收装置及其方法包括：自动增益控制器，用于将接收信号电平放大到具有预定幅值的信号电平;定时恢复器，用于从自动控制装置输出的信号中恢复定时 增益控制器，用于从定时恢复器接收的信号中去除干扰噪声的均衡器，用于从从均衡器接收的信号中检测数字值的限幅器，用于复位接收设备并初始化自动增益控制器的初始化控制器，定时 恢复器和均衡器，当均衡器的输出信号的信噪比小于参考信噪比时，以及更新控制器，用于当HAM无线电干扰时防止自动增益控制器和均衡器被初始化控制器初始化 在接收到的标志中检测到噪音 人。
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