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1. 发明授权

US06208481B1 Gain and phase constrained adaptive equalizing filter in a sampled amplitude read channel for magnetic recording 有权
标题翻译：用于磁记录的采样振幅读通道中的增益和相位约束自适应均衡滤波器
公开(公告)号：US06208481B1
公开(公告)日：2001-03-27
申请号：US09342167
申请日：1999-06-28
申请人： Mark S. Spurbeck , Li Du , Trent O. Dudley , William G. Bliss , German S. Feyh , Richard T. Behrens
发明人： Mark S. Spurbeck , Li Du , Trent O. Dudley , William G. Bliss , German S. Feyh , Richard T. Behrens
IPC分类号： G11B5035
CPC分类号： G11B20/10055 , G11B5/012 , G11B5/035 , G11B5/09 , G11B20/10009 , G11B20/10037 , G11B20/1403 , H04L7/0029 , H04L7/0062
摘要： A sampled amplitude read channel for magnetic disk recording which asynchronously samples the analog read signal, adaptively equalizes the resulting discrete time sample values according to a target partial response, extracts synchronous sample values through interpolated timing recovery, and detects digital data from the synchronous sample values using a Viterbi sequence detector is disclosed. To minimize interference from the timing and gain control loops, the phase and magnitude response of the adaptive equalizer filter are constrained at a predetermined frequency using an optimal orthogonal projection operation as a modification to a least mean square (LMS) adaptation algorithm. Further, with interpolated timing recovery, the equalizer filter and its associated latency are removed from the timing recovery loop, thereby allowing a higher order discrete time filter and a lower order analog filter.
摘要翻译：用于磁盘记录的采样幅度读取通道，其异步采样模拟读取信号，根据目标部分响应对所得离散时间采样值进行自适应均衡，通过内插定时恢复提取同步采样值，并从同步采样值检测数字数据公开了使用维特比序列检测器。为了最小化来自定时和增益控制环路的干扰，使用最佳正交投影操作将自适应均衡器滤波器的相位和幅度响应约束在预定频率，作为对最小均方（LMS）适配算法的修改。此外，通过内插定时恢复，均衡器滤波器及其相关等待时间从定时恢复环路中移除，从而允许较高阶离散时间滤波器和较低阶模拟滤波器。

2. 发明授权

US5999355A Gain and phase constrained adaptive equalizing filter in a sampled amplitude read channel for magnetic recording 失效
标题翻译：用于磁记录的采样振幅读通道中的增益和相位约束自适应均衡滤波器
公开(公告)号：US5999355A
公开(公告)日：1999-12-07
申请号：US640410
申请日：1996-04-30
申请人： Richard T. Behrens , William G. Bliss , Li Du , Mark S. Spurbeck , German S. Feyh , Trent O. Dudley
发明人： Richard T. Behrens , William G. Bliss , Li Du , Mark S. Spurbeck , German S. Feyh , Trent O. Dudley
IPC分类号： G11B5/012 , G11B5/035 , G11B5/09 , G11B20/10 , G11B20/14 , G11B20/18 , H03H15/00 , H03H17/02 , H03H17/06 , H04L7/00 , H04L7/02 , H04L25/03
CPC分类号： G11B20/10055 , G11B20/10009 , G11B20/10037 , G11B20/1403 , G11B5/09 , G11B5/012 , G11B5/035 , H04L7/0029 , H04L7/0062
摘要： A sampled amplitude read channel for magnetic disk recording which asynchronously samples the analog read signal, adaptively equalizes the resulting discrete time sample values according to a target partial response, extracts synchronous sample values through interpolated timing recovery, and detects digital data from the synchronous sample values using a Viterbi sequence detector is disclosed. To minimize interference from the timing and gain control loops, the phase and magnitude response of the adaptive equalizer filter are constrained at a predetermined frequency using an optimal orthogonal projection operation as a modification to a least mean square (LMS) adaptation algorithm. Further, with interpolated timing recovery, the equalizer filter and its associated latency are removed from the timing recovery loop, thereby allowing a higher order discrete time filter and a lower order analog filter.
摘要翻译：用于磁盘记录的采样幅度读取通道，其异步采样模拟读取信号，根据目标部分响应对所得离散时间采样值进行自适应均衡，通过内插定时恢复提取同步采样值，并从同步采样值检测数字数据公开了使用维特比序列检测器。为了最小化来自定时和增益控制环路的干扰，使用最佳正交投影操作将自适应均衡器滤波器的相位和幅度响应约束在预定频率，作为对最小均方（LMS）适配算法的修改。此外，通过内插定时恢复，均衡器滤波器及其相关等待时间从定时恢复环路中移除，从而允许较高阶离散时间滤波器和较低阶模拟滤波器。

3. 发明授权

US06819514B1 Adaptive equalization and interpolated timing recovery in a sampled amplitude read channel for magnetic recording 失效
标题翻译：用于磁记录的采样振幅读通道中的自适应均衡和内插定时恢复
公开(公告)号：US06819514B1
公开(公告)日：2004-11-16
申请号：US08640351
申请日：1996-04-30
申请人： Richard T. Behrens , Li Du , William G. Bliss , David E. Reed , Mark S. Spurbeck
发明人： Richard T. Behrens , Li Du , William G. Bliss , David E. Reed , Mark S. Spurbeck
IPC分类号： G11B5035
CPC分类号： G11B20/10194 , G11B20/10037 , G11B20/10055 , G11B20/1258 , G11B20/1876
摘要： A sampled amplitude read channel for magnetic disk recording which asynchronously samples the analog read signal, adaptively equalizes the resulting discrete time sample values according to a target partial response, extracts synchronous sample values through interpolated timing recovery, and detects digital data from the synchronous sample values using a Viterbi sequence detector is disclosed. To minimize interference from the timing and gain control loops, the phase and magnitude response of the adaptive equalizer filter are constrained at a predetermined frequency using an optimal orthogonal projection operation as a modification to a least mean square (LMS) adaptation algorithm. Further, with interpolated timing recovery, the equalizer filter and its associated latency are removed from the timing recovery loop, thereby allowing a higher order discrete time filter and a lower order analog filter.
摘要翻译：用于磁盘记录的采样幅度读取通道，其异步采样模拟读取信号，根据目标部分响应对所得离散时间采样值进行自适应均衡，通过内插定时恢复提取同步采样值，并从同步采样值检测数字数据公开了使用维特比序列检测器。为了最小化来自定时和增益控制环路的干扰，使用最佳正交投影操作将自适应均衡器滤波器的相位和幅度响应约束在预定频率，作为对最小均方（LMS）适配算法的修改。此外，通过内插定时恢复，均衡器滤波器及其相关等待时间从定时恢复环路中移除，从而允许较高阶离散时间滤波器和较低阶模拟滤波器。

4. 发明授权

US6108151A Sampled amplitude read channel for reading user data and embedded servo data from a magnetic medium 失效
标题翻译：采样幅度读通道，用于从磁介质读取用户数据和嵌入式伺服数据
公开(公告)号：US6108151A
公开(公告)日：2000-08-22
申请号：US846140
申请日：1997-04-25
申请人： Tyson Tuttle , Diwakar Vishakhadatta , Jerrel P. Hein , David R. Welland , David E. Reed , Richard T. Behrens , William G. Bliss , Paul M. Romano , Trent O. Dudley , Christopher P. Zook
发明人： Tyson Tuttle , Diwakar Vishakhadatta , Jerrel P. Hein , David R. Welland , David E. Reed , Richard T. Behrens , William G. Bliss , Paul M. Romano , Trent O. Dudley , Christopher P. Zook
IPC分类号： G11B5/012 , G11B5/09 , G11B5/55 , G11B5/58 , G11B5/596 , G11B19/28 , G11B20/10 , G11B20/12 , G11B20/14 , G11B15/12 , G11B21/02
CPC分类号： G11B20/10055 , G11B19/28 , G11B20/10009 , G11B20/10037 , G11B20/1403 , G11B5/012 , G11B5/09 , G11B5/5526 , G11B5/553 , G11B5/5547 , G11B5/58 , G11B5/59605 , G11B5/59622 , G11B5/59633 , G11B5/59688 , G11B20/1258 , G11B5/5534 , G11B5/5965
摘要： A sampled amplitude read channel is disclosed for reading data recorded on a disk storage medium by detecting an estimated binary sequence from a sequence of discrete time sample values generated by sampling pulses in an analog read signal from a read head positioned over the disk storage medium. The read channel comprises a sampling device, such as an analog-to-digital converter (A/D), for sampling the analog read signal to generate the discrete time sample values and for sampling at least one other auxillary analog input signal, such as a servo control signal. In this manner, performance characteristics of the read channel can be measured, such as the driving current applied to the servo control voice coil motor (VCM), without requiring additional hardware.
摘要翻译：公开了一种采样幅度读取通道，用于通过从位于盘存储介质上的读取头的模拟读取信号中通过采样脉冲产生的离散时间采样值序列检测估计的二进制序列来读取记录在盘存储介质上的数据。读取通道包括采样装置，例如模拟 - 数字转换器（A / D），用于对模拟读取信号进行采样以产生离散时间采样值，并用于对至少一个其他辅助模拟输入信号进行采样，例如伺服控制信号。以这种方式，可以测量读取通道的性能特性，例如施加到伺服控制音圈电机（VCM）的驱动电流，而不需要额外的硬件。

5. 发明授权

US5623377A Filtering a read signal to attenuate secondary pulses caused by pole tips of a thin film magnetic read head 失效
标题翻译：滤除读取信号以衰减由薄膜磁头读取头的极尖引起的次脉冲
公开(公告)号：US5623377A
公开(公告)日：1997-04-22
申请号：US222666
申请日：1994-04-04
申请人： Richard T. Behrens , Neal Glover , Trent O. Dudley , Alan J. Armstrong , Christopher P. Zook , William G. Bliss
发明人： Richard T. Behrens , Neal Glover , Trent O. Dudley , Alan J. Armstrong , Christopher P. Zook , William G. Bliss
IPC分类号： G11B5/09 , G11B20/10 , H03H17/02 , H03H17/06 , H04B3/06 , G11B5/035
CPC分类号： H03H17/06 , G11B20/10009 , G11B5/09 , H03H17/02
摘要： A filter for compensating discrete secondary pulse formations associated with a data stream of discrete main pulses produced from data read from magnetic media. The filter's impulse response comprises a center coefficient with side compensating coefficients for attenuating the secondary pulses when the input signal is convolved with the impulse response. The magnitude and delay of the compensation coefficients are programmable and are adaptively adjusted to optimize the impulse response for a given environment. In a traditional FIR embodiment, two delay lines are used to generate the two programmable delays between the center coefficient and side compensation coefficients. In the preferred embodiment, an IIR filter provides the two programmable delays using only one delay line thereby reducing the size and cost of the circuit. Also in the preferred embodiment, the data stream is interleaved into an even and odd data stream and processed in parallel by two filters in order to double the throughput. Further, the pre-cursor correcting portion of the filter can be disabled in order to avoid delaying the data stream while still canceling the post-cursor secondary pulses. The filter also comprises attenuation and adder means to match the coincident sample values in amplitude and add them to substantially eliminate the effect of the secondary pulses in the discrete data stream.
摘要翻译：用于补偿与从磁介质读取的数据产生的离散主脉冲的数据流相关联的离散次级脉冲形成的滤波器。滤波器的脉冲响应包括具有侧补偿系数的中心系数，用于当输入信号与脉冲响应卷积时衰减次级脉冲。补偿系数的幅度和延迟可编程，并进行自适应调整，以优化给定环境的脉冲响应。在传统的FIR实施例中，使用两条延迟线来产生中心系数和侧面补偿系数之间的两个可编程延迟。在优选实施例中，IIR滤波器仅使用一个延迟线提供两个可编程延迟，从而减小电路的尺寸和成本。同样在优选实施例中，数据流被交织成偶数和奇数数据流，并且由两个滤波器并行处理，以使吞吐量翻倍。此外，可以禁用滤波器的前光标校正部分，以避免在仍然取消后光标次级脉冲的同时延迟数据流。滤波器还包括衰减和加法器装置，以使幅度上重合的采样值相匹配，并将它们相加，以基本上消除离散数据流中次级脉冲的影响。

6. 发明授权

US5796535A Sampled amplitude read channel employing a user data frequency synthesizer and a servo data frequency synthesizer 失效
标题翻译：采用用户数据频率合成器和伺服数据频率合成器的采样幅度读取通道
公开(公告)号：US5796535A
公开(公告)日：1998-08-18
申请号：US440515
申请日：1995-05-12
申请人： Tyson Tuttle , Diwakar Vishakhadatta , Jerrel P. Hein , David R. Welland , David E. Reed , Richard T. Behrens , William G. Bliss , Paul M. Romano , Trent O. Dudley , Christopher P. Zook
发明人： Tyson Tuttle , Diwakar Vishakhadatta , Jerrel P. Hein , David R. Welland , David E. Reed , Richard T. Behrens , William G. Bliss , Paul M. Romano , Trent O. Dudley , Christopher P. Zook
IPC分类号： G11B5/012 , G11B5/09 , G11B5/55 , G11B5/58 , G11B5/596 , G11B19/28 , G11B20/10 , G11B20/12 , G11B20/14
CPC分类号： G11B20/10055 , G11B19/28 , G11B20/10009 , G11B20/10037 , G11B20/1403 , G11B5/012 , G11B5/09 , G11B5/5526 , G11B5/553 , G11B5/5547 , G11B5/58 , G11B5/59605 , G11B5/59622 , G11B5/59633 , G11B5/59688 , G11B20/1258 , G11B5/5534 , G11B5/5965
摘要： A sampled amplitude read channel incorporated within a magnetic disk storage system for reading data recorded in concentric tracks on a magnetic medium, where the data comprises user data sectors recorded at varying data rates across a plurality of predefined zones and embedded servo data sectors recorded at the same data rate across the zones. The sampled amplitude read channel comprises a timing recovery component for synchronous sampling of a read signal from a magnetic read head positioned over the magnetic medium, a gain control component for adjusting the amplitude of the read signal, and a DC offset component for cancelling a DC offset in the read signal. These components are dynamically configured to operate according to whether the read channel is processing user data or embedded servo data. A user data frequency synthesizer and a servo data frequency synthesizer lock the timing recovery component to a reference frequency and provide a coarse center frequency control signal corresponding to the user data or servo data mode. The read channel further employs pipelined reads to reduce the physical gap between sectors on the medium. In addition, an improved sync mark detector and an improved asynchronous servo address mark detector increase the accuracy and reliability of the read channel.
摘要翻译：一个结合在磁盘存储系统内的采样幅度读取通道，用于读取记录在磁介质上的同心磁道中的数据，其中数据包括以多个预定义区域中记录的不同数据速率记录的用户数据扇区，以及记录在相同的数据速率跨区域。采样振幅读通道包括定时恢复组件，用于对位于磁介质上的磁读头进行读信号的同步采样，用于调整读信号振幅的增益控制部件和用于消除DC的直流偏移分量在读信号中偏移。这些组件被动态配置为根据读通道是处理用户数据还是嵌入式伺服数据进行操作。用户数据频率合成器和伺服数据频率合成器将定时恢复组件锁定到参考频率，并提供对应于用户数据或伺服数据模式的粗略的中心频率控制信号。读通道还采用流水线读取来减少介质上扇区之间的物理差距。此外，改进的同步标记检测器和改进的异步伺服地址标记检测器增加读取通道的精度和可靠性。

7. 发明授权

US06646822B1 Sampled amplitude read channel employing pipelined reads to reduce the gap between sectors 失效
标题翻译：取样幅度读通道采用流水线读数，以减少扇区之间的差距
公开(公告)号：US06646822B1
公开(公告)日：2003-11-11
申请号：US08815894
申请日：1997-03-12
申请人： Tyson Tuttle , Diwakar Vishakhadatta , Jerrel P. Hein , David R. Welland , David E. Reed , Richard T. Behrens , William G. Bliss , Paul M. Romano , Trent O. Dudley , Christopher P. Zook
发明人： Tyson Tuttle , Diwakar Vishakhadatta , Jerrel P. Hein , David R. Welland , David E. Reed , Richard T. Behrens , William G. Bliss , Paul M. Romano , Trent O. Dudley , Christopher P. Zook
IPC分类号： G11B509
CPC分类号： G11B20/10055 , G11B5/012 , G11B5/09 , G11B5/5526 , G11B5/553 , G11B5/5534 , G11B5/5547 , G11B5/58 , G11B5/59605 , G11B5/59622 , G11B5/59633 , G11B5/5965 , G11B5/59688 , G11B19/28 , G11B20/10009 , G11B20/10037 , G11B20/1258 , G11B20/1403
摘要： A sampled amplitude read channel incorporated within a magnetic disk storage system for reading data recorded tracks on a magnetic medium, where the data comprises user data sectors recorded at varying data rates across a plurality of predefined zones and embedded servo data sectors recorded at the same data rate across the zones. The read channel comprises a timing recovery component for synchronous sampling of a read signal from a magnetic read head positioned over the magnetic medium, a gain control component for adjusting the amplitude of the read signal, and a DC offset component for canceling a DC offset in the read signal. These components are dynamically configured to operate according to whether the read channel is processing user data or embedded servo data.
摘要翻译：包含在磁盘存储系统内的采样幅度读取通道，用于读取在磁性介质上记录的轨道上的数据，其中数据包括以相同数据记录的多个预定义区域和嵌入式伺服数据扇区以变化的数据速率记录的用户数据扇区率跨越区域。读取通道包括用于对位于磁介质上的磁读头的读信号进行同步采样的定时恢复组件，用于调整读信号幅度的增益控制部件和用于消除读信号的DC偏移的DC偏移分量读信号。这些组件被动态配置为根据读通道是处理用户数据还是嵌入式伺服数据进行操作。

8. 发明授权

US5903857A Method and apparatus for calibrating an analog filter in a sampled amplitude read channel 失效
标题翻译：用于校准采样振幅读通道中的模拟滤波器的方法和装置
公开(公告)号：US5903857A
公开(公告)日：1999-05-11
申请号：US751832
申请日：1996-11-18
申请人： Richard T. Behrens , Tyson Tuttle , Kent D. Anderson , Trent O. Dudley , William G. Bliss
发明人： Richard T. Behrens , Tyson Tuttle , Kent D. Anderson , Trent O. Dudley , William G. Bliss
IPC分类号： G11B20/10 , G06F17/10 , G11B5/035
CPC分类号： G11B20/10055 , G11B20/10009 , G11B20/10037 , G11B20/10481
摘要： A method and apparatus for calibrating an analog equalizer in a sampled amplitude read channel is disclosed wherein the filter's frequency response is measured and calibrated directly. This is accomplished by injecting a known periodic signal into the analog filter and measuring a spectrum value at a predetermined frequency. The filter parameters are adjusted accordingly until the spectrum reaches a predetermined target value. In the preferred embodiment, the analog filter comprises at least one second order low pass filter (referred to as a biquad filter), and the filter's spectrum is adjusted relative to the well known parameters f.sub.o and Q. Specifically, the parameters f.sub.o and Q are optimized relative to a power measurement at predetermined harmonics of the input signal. In this manner, the present invention enables auto-calibration of the analog equalizer without reading any data from the disc. Furthermore, the calibration process can be executed during the storage system's normal operation without significantly degrading its overall performance.
摘要翻译：公开了一种用于校准采样振幅读通道中的模拟均衡器的方法和装置，其中滤波器的频率响应被直接测量和校准。这是通过将已知的周期信号注入模拟滤波器并以预定频率测量频谱值来实现的。相应地调整滤波器参数，直到频谱达到预定的目标值。在优选实施例中，模拟滤波器包括至少一个二阶低通滤波器（称为双二阶滤波器），并且相对于众所周知的参数fo和Q调节滤波器的频谱。具体地，参数fo和Q是相对于输入信号的预定谐波处的功率测量而优化。以这种方式，本发明能够在不从盘读取任何数据的情况下自动校准模拟均衡器。此外，可以在存储系统的正常操作期间执行校准过程，而不会显着降低其整体性能。

9. 发明授权

US06246723B1 Sampled amplitude read channel employing early-decisions from a trellis sequence detector for sampling value estimation 失效
标题翻译：采样幅度读取信道采用来自网格序列检测器的早期判决来进行采样值估计
公开(公告)号：US06246723B1
公开(公告)日：2001-06-12
申请号：US09072285
申请日：1998-05-04
申请人： William G. Bliss , David E. Reed , Marvin L. Vis , German S. Feyh
发明人： William G. Bliss , David E. Reed , Marvin L. Vis , German S. Feyh
IPC分类号： H04L512
CPC分类号： G11B20/10009 , G11B20/10055 , H03M13/3961 , H03M13/41 , H03M13/6331 , H03M13/6343 , H04L1/0054
摘要： A sampled amplitude read channel is disclosed for disc storage systems that extracts early-decisions from a discrete-time trellis sequence detector to generate estimated target values for use in decision-directed timing recovery, gain control, and adaptive equalization. The trellis sequence detector comprises a metric generator for generating error metrics corresponding to a plurality of states of a state transition diagram, and a plurality of path memories which correspond to the paths of a trellis. The path memories store a plurality of survivor sequences which eventually merge into a most likely sequence at the output of the path memories. To reduce the latency in generating the estimated target samples, the trellis sequence detector outputs an early-decision from an intermediate location within the path memories. The early-decision is then converted into the partial response signaling space of the read signal samples. To improve the accuracy in estimating the target sample values, the accumulated metrics of a predetermined number of states are compared and the early-decision value is selected from the path memory having the smallest error metric. Alternatively, a majority-vote circuit evaluates the intermediate values stored in a predetermined number of the path memories and outputs the intermediate value that occurs most frequently. Although the early-decision technique of the present invention requires more latency than a simple slicer circuit, during acquisition the estimated target sample values are not used and therefore the increase in latency is not a significant problem.
摘要翻译：公开了用于从离散时间网格序列检测器提取早期决定以产生用于决策定时恢复，增益控制和自适应均衡的估计目标值的盘存储系统的采样幅度读取信道。网格序列检测器包括用于产生与状态转移图的多个状态相对应的误差度量的度量发生器，以及对应于网格的路径的多个路径存储器。路径存储器存储多个幸存者序列，其最终在路径存储器的输出处合并成最可能的序列。为了减少生成估计的目标样本的延迟，网格序列检测器从路径存储器内的中间位置输出早期决定。然后将早期决定转换为读取信号样本的部分响应信令空间。为了提高估计目标采样值的准确性，比较预定数量状态的累积度量，并从具有最小误差度量的路径存储器中选择早期判定值。或者，多数投票电路评估存储在预定数量的路径存储器中的中间值，并输出最频繁出现的中间值。虽然本发明的早期决策技术比简单的限幅器电路需要更多的延迟，但在采集期间，不使用估计的目标采样值，因此等待时间的增加不是一个显着的问题。

10. 发明授权

US6141169A System and method for control of low frequency input levels to an amplifier and compensation of input offsets of the amplifier 失效
标题翻译：用于控制放大器的低频输入电平的系统和方法以及放大器的输入偏移的补偿
公开(公告)号：US6141169A
公开(公告)日：2000-10-31
申请号：US956569
申请日：1997-10-23
申请人： David M. Pietruszynski , Jerrell P. Hein , William G. Bliss , German S. Feyh
发明人： David M. Pietruszynski , Jerrell P. Hein , William G. Bliss , German S. Feyh
IPC分类号： G11B5/00 , G11B5/09 , G11B7/09 , G11B20/10 , H03F1/30 , H03F3/45 , G11B5/02
CPC分类号： H03F3/45748 , G11B20/10009 , H03F1/303 , H03F3/45973 , G11B2005/0013 , G11B5/09 , G11B7/0941 , G11B7/0948
摘要： A system and method for an amplifier control circuit is provided which does not require the use of a large off-chip or on-chip capacitor for achieving a low frequency coupling corner, while still effectively allowing AC coupling the data detection circuit. In addition, the input offset voltage to the amplifier may be compensated and the inherent random low frequency input voltages provided to the amplifier may be controlled or canceled. Further, the amplifier control circuitry includes a freeze capability which allows the control circuitry to halt all updates to the input offset/low frequency control circuit when the voltage input signal is interrupted. In addition low frequency control and offset compensation updates may be performed without causing large output signal glitches so that the integrity of the received signal will not be compromised. In a preferred embodiment the system and method may be utilized for data detection circuits utilized in conjunction with optical disks.
摘要翻译：提供一种用于放大器控制电路的系统和方法，其不需要使用大的片外或片上电容器来实现低频耦合角，同时仍然有效地允许AC耦合数据检测电路。此外，可以补偿放大器的输入失调电压，并且可以控制或取消提供给放大器的固有的随机低频输入电压。此外，放大器控制电路包括冻结能力，其允许控制电路在电压输入信号中断时停止对输入偏移/低频控制电路的所有更新。此外，可以执行低频控制和偏移补偿更新，而不会导致大的输出信号毛刺，从而不会损害接收信号的完整性。在优选实施例中，系统和方法可以用于与光盘结合使用的数据检测电路。

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