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1. 发明授权

US07408495B2 Digital equalization of multiple interleaved analog-to-digital converters 有权
标题翻译：多个交错模数转换器的数字均衡
公开(公告)号：US07408495B2
公开(公告)日：2008-08-05
申请号：US11493353
申请日：2006-07-25
申请人： Anatoli Stein , Semen P. Volfbeyn
发明人： Anatoli Stein , Semen P. Volfbeyn
IPC分类号： H03M1/12
CPC分类号： H03M1/0626 , H03M1/0836 , H03M1/1033 , H03M1/1215
摘要： Time variant interleaving equalization of an interleaved analog to digital converter is disclosed. A high-frequency analog input signal is converted into a plurality of individual digital signals using a plurality of interleaved analog-to-digital converters. the plurality of individual digital signals are interleaved into a composite digital signal. The composite digital signal is processed in a time variant interleaving equalizer using a plurality of sets of equalizer coefficients.
摘要翻译：公开了交错模数转换器的时变交织均衡。使用多个交错模数转换器将高频模拟输入信号转换成多个单独的数字信号。多个单独的数字信号被交织成一个复合数字信号。使用多组均衡器系数在时变交错均衡器中处理复合数字信号。

2. 发明授权

US07382304B2 Sampling and measurement of periodic signals 有权
标题翻译：周期信号采样和测量
公开(公告)号：US07382304B2
公开(公告)日：2008-06-03
申请号：US11580523
申请日：2006-10-13
申请人： Anatoli Stein
发明人： Anatoli Stein
IPC分类号： H03M1/12
CPC分类号： G11B20/10009 , G11B5/09 , H03M1/1285
摘要： A periodic signal is sampled. The sampling frequency is less than the Nyquist rate of the periodic signal. A period of the periodic signal is determined. A phase of the periodic signal is tracked to determine a sample's position on the period of the periodic signal. A replica of the periodic signal is reconstructed. A measurement of the periodic signal is determined based on a measurement of the replica of the periodic signal.
摘要翻译：对周期信号进行采样。采样频率小于周期信号的奈奎斯特速率。确定周期信号的周期。跟踪周期信号的相位以在周期信号的周期上确定样本的位置。重建周期信号的复制品。基于周期信号的副本的测量来确定周期信号的测量。

3. 发明申请

US20070262895A1 Digital equalization of multiple interleaved analog-to-digital converters 有权
标题翻译：多个交错模数转换器的数字均衡
公开(公告)号：US20070262895A1
公开(公告)日：2007-11-15
申请号：US11493353
申请日：2006-07-25
申请人： Anatoli Stein , Semen P. Volfbeyn
发明人： Anatoli Stein , Semen P. Volfbeyn
IPC分类号： H03M1/00 , H03M1/12
CPC分类号： H03M1/0626 , H03M1/0836 , H03M1/1033 , H03M1/1215
摘要： Time variant interleaving equalization of an interleaved analog to digital converter is disclosed. A high-frequency analog input signal is converted into a plurality of individual digital signals using a plurality of interleaved analog-to-digital converters. the plurality of individual digital signals are interleaved into a composite digital signal. The composite digital signal is processed in a time variant interleaving equalizer using a plurality of sets of equalizer coefficients.
摘要翻译：公开了交错模数转换器的时变交织均衡。使用多个交错模数转换器将高频模拟输入信号转换成多个单独的数字信号。多个单独的数字信号被交织成一个复合数字信号。使用多组均衡器系数在时变交错均衡器中处理复合数字信号。

4. 发明申请

US20060061496A1 Self-adjusting PRML receiver 有权
标题翻译：自调整PRML接收器
公开(公告)号：US20060061496A1
公开(公告)日：2006-03-23
申请号：US10945393
申请日：2004-09-20
申请人： Anatoli Stein , Semen Volfbeyn
发明人： Anatoli Stein , Semen Volfbeyn
IPC分类号： H03M7/00
CPC分类号： G11B20/10055 , G11B20/10009 , G11B20/10296 , H03M13/6508
摘要： A partial response maximum likelihood (PRML) data detecting in a magnetic recording storage device is carried out with a preliminary measuring of write-read channel responses to all nonzero binary combinations of a given length. Decoding of the user data is performed according to a Viterbi algorithm, where the previously measured responses are used as expected samples for branch metric calculations. The measurement of the write-read channel responses and the decoding of the user data are fulfilled by a self-adjusting PRML receiver that contains a controllable clock recovery, a responses accumulator and an adjustable Viterbi detector. The controllable clock recovery produces a set of read-back signal samples containing exactly one sample per bit with or without phase error correction. The responses accumulator calculates averaged responses of the write-read channel. The adjustable Viterbi detector reconstructs the user data that were written to the disk.
摘要翻译：通过对给定长度的所有非零二进制组合的读取 - 读取通道响应的初步测量来执行磁记录存储设备中的部分响应最大似然（PRML）数据检测。根据维特比算法执行用户数据的解码，其中先前测量的响应用作分支度量计算的预期样本。写入通道响应的测量和用户数据的解码由包含可控时钟恢复的自调节PRML接收器，响应累加器和可调维特比检测器来实现。可控制的时钟恢复产生一组回读信号样本，每个位都包含正或负相位误差校正的每个样本。响应累加器计算写通道的平均响应。可调节维特比检测器重建写入磁盘的用户数据。

5. 发明授权

US07830217B1 Method and system of vector signal generator with direct RF signal synthesis and parallel signal processing 有权
标题翻译：矢量信号发生器的方法和系统，具有直接RF信号合成和并行信号处理
公开(公告)号：US07830217B1
公开(公告)日：2010-11-09
申请号：US12276718
申请日：2008-11-24
申请人： Anatoli Stein , Semen Volfbeyn , Nahum Guzik
发明人： Anatoli Stein , Semen Volfbeyn , Nahum Guzik
IPC分类号： H03C3/00 , H04L27/20
CPC分类号： H04L27/362 , H04L27/365
摘要： A vector signal generator with direct RF signal synthesis is disclosed. The vector signal generator comprises an RF signal synthesizer, a switch, and a memory. The RF signal synthesizer is configured for converting baseband IQ signals into a modulated digital RF signal. The RF signal synthesizer is connected to an I input, a Q input, a clock input, a control input, and an output, where the clock input is a clock input of the vector signal generator, the control input is a control input of the vector signal generator, and the output is an RF signal output of the vector signal generator. The switch is configured for selecting a source of IQ signals and is connected to an external I input, an external Q input, a stored signal I input, a stored signal Q input, the control input, an I output, and a Q output. The external I input and external Q input are external IQ inputs to the vector signal generator and the I output and the Q output are connected to the I input and the Q input of the RF signal synthesizer. The memory is configured for storing IQ signals samples, said memory being connected to the control input and having a stored I output, connected to the stored signal I input, and a stored Q output connected to the stored signal Q input.
摘要翻译：公开了一种具有直接RF信号合成的矢量信号发生器。矢量信号发生器包括RF信号合成器，开关和存储器。 RF信号合成器被配置用于将基带IQ信号转换成调制的数字RF信号。 RF信号合成器连接到I输入，Q输入，时钟输入，控制输入和输出，其中时钟输入是矢量信号发生器的时钟输入，控制输入是矢量信号发生器，输出是矢量信号发生器的RF信号输出。开关配置为选择IQ信号源，并连接到外部I输入，外部Q输入，存储信号I输入，存储信号Q输入，控制输入，I输出和Q输出。外部I输入和外部Q输入是矢量信号发生器的外部IQ输入，I输出和Q输出连接到RF信号合成器的I输入和Q输入。存储器被配置为存储IQ信号样本，所述存储器连接到控制输入并且具有连接到存储的信号I输入的存储的I输出和连接到存储的信号Q输入的存储的Q输出。

6. 发明申请

US20070025004A1 Timing analysis of read back signals in magnetic recording devices 有权
公开(公告)号：US20070025004A1
公开(公告)日：2007-02-01
申请号：US11249042
申请日：2005-10-11
申请人： Anatoli Stein , Semen Volfbeyn , Vladislav Klimov , Igor Tarnikov
发明人： Anatoli Stein , Semen Volfbeyn , Vladislav Klimov , Igor Tarnikov
IPC分类号： G11B27/36
CPC分类号： G11B20/10009 , G11B20/10222 , G11B2220/2516
摘要： Analysis of a read back signal in a magnetic recording device is disclosed. The read back signal is converted to a digital read back signal, and a low frequency component of the digital read back signal is restored. A sample clock is recovered from the restored digital read back signal, and the restored digital read back signal is averaged using the recovered sample clock. A timing error is calculated based at least in part on the averaged restored digital read back signal.

7. 发明申请

US20060273851A1 Method and apparatus for low-frequency bypass in broadband RF circuitry 有权
标题翻译：宽带射频电路中低频旁路的方法和装置
公开(公告)号：US20060273851A1
公开(公告)日：2006-12-07
申请号：US11146766
申请日：2005-06-07
申请人： Anatoli Stein , Mikhail Nikolaev
发明人： Anatoli Stein , Mikhail Nikolaev
IPC分类号： H03F3/45
CPC分类号： H03F3/68 , H03F2200/432
摘要： A method of processing an input broadband signal in RF circuitry includes extracting low-frequency components from the input broadband signal, processing the low-frequency components in low-frequency bypass circuitry, and adding the processed low-frequency components to the output of the RF circuitry to produce a combined output signal. Low-frequency bypass amplifier circuitry for bypassing RF circuitry includes a capacitor having a first terminal for receiving an input signal and a second terminal for connecting to an input of the RF circuitry, and a differential amplifier having two inputs respectively connected to the two terminals of the capacitor, and an output connected to an output of the RF circuitry. High-frequency components of the input signal pass through the capacitor and the RF circuitry, and low-frequency components pass through the differential amplifier and are added to the output of the RF circuitry to produce a combined output signal. The low-frequency bypass circuitry has an amplification which matches with the amplification of the RF circuitry, such that the combined output signal is not distorted from the input signal.
摘要翻译：在RF电路中处理输入宽带信号的方法包括从输入宽带信号中提取低频分量，处理低频旁路电路中的低频分量，以及将处理的低频分量加到RF的输出端产生组合输出信号的电路。用于旁路RF电路的低频旁路放大器电路包括具有用于接收输入信号的第一端子的电容器和用于连接到RF电路的输入的第二端子，以及具有两个输入的差分放大器，该两个输入分别连接到两个端子电容器和连接到RF电路的输出的输出。输入信号的高频分量通过电容器和RF电路，低频分量通过差分放大器并被加到RF电路的输出端以产生组合的输出信号。低频旁路电路具有与RF电路的放大匹配的放大，使得组合的输出信号不与输入信号失真。

8. 发明授权

US06219683B1 Radially distributed transverse filter 失效
标题翻译：径向分布横向滤波器
公开(公告)号：US06219683B1
公开(公告)日：2001-04-17
申请号：US09124129
申请日：1998-07-29
申请人： Nahum Guzik , Anatoli Stein
发明人： Nahum Guzik , Anatoli Stein
IPC分类号： G06F1710
CPC分类号： H03H17/0219 , H03H17/06
摘要： A radially distributed transverse filter includes a plurality of delay lines of substantially equal electric length sequentially coupled at a like plurality of nodes. The nodes are distributed equidistant from a common position, for example positioned at vertices of a polygon. A plurality of attenuators are distributed radially about the common position and coupled between the nodes and the common position. An adder is located substantially at the common position for summing the attenuator outputs. In this manner, the respective propagation delays of each tap are substantially similar, and imprecision due to variation in propagation delay is therefore mitigated and/or substantially eliminated. The invention has application to high-frequency digital and analog transverse filters, for example filters for equalizers used in Partial Response Maximum Likelihood (PRML) circuits employed in contemporary magnetic recording systems.
摘要翻译：径向分布的横向滤波器包括基本相等的电长度的多条延迟线，其依次耦合在相同的多个节点处。节点从公共位置等距分布，例如位于多边形的顶点。多个衰减器围绕公共位置径向分布并且在节点和公共位置之间耦合。加法器基本上位于用于对衰减器输出求和的公共位置。以这种方式，每个抽头的相应传播延迟基本相似，因此减小和/或基本上消除了由于传播延迟的变化引起的不精确性。本发明适用于高频数字和模拟横向滤波器，例如用于当代磁记录系统中使用的部分响应最大似然（PRML）电路中的均衡器的滤波器。

9. 发明申请

US20070109159A1 Sampling and measurement of periodic signals 有权
标题翻译：周期信号采样和测量
公开(公告)号：US20070109159A1
公开(公告)日：2007-05-17
申请号：US11580523
申请日：2006-10-13
申请人： Anatoli Stein
发明人： Anatoli Stein
IPC分类号： H03M7/00
CPC分类号： G11B20/10009 , G11B5/09 , H03M1/1285
摘要： Sampling and measuring a periodic signal is disclosed. A periodic signal is sampled. The sampling frequency is less than the Nyquist rate of the periodic signal. A period of the periodic signal is determined. A phase of the periodic signal is tracked to determine a sample's position on the period of the periodic signal. A replica of the periodic signal is reconstructed. A measurement of the periodic signal is determined based on a measurement of the replica of the periodic signal.
摘要翻译：公开了采样和测量周期性信号。对周期信号进行采样。采样频率小于周期信号的奈奎斯特速率。确定周期信号的周期。跟踪周期信号的相位以在周期信号的周期上确定样本的位置。重建周期信号的复制品。基于周期信号的副本的测量来确定周期信号的测量。

10. 发明申请

US20060064628A1 Viterbi decoder with direct current restoration 有权
标题翻译：维特比解码器，直流恢复
公开(公告)号：US20060064628A1
公开(公告)日：2006-03-23
申请号：US10945117
申请日：2004-09-20
申请人： Anatoli Stein , Semen Volfbeyn
发明人： Anatoli Stein , Semen Volfbeyn
IPC分类号： H03M13/03
CPC分类号： H03M13/6343 , H03M13/41
摘要： A decoder for detecting data within an input signal with attenuated low frequency components that comprises a Viterbi decoder, is disclosed. Viterbi decoder internal data is used along with its output bits to reduce delay between the restored direct current (DC) component and the input signal to zero. As a result, increased accuracy of DC restoration and corresponding bit error rate reduction are achieved.
摘要翻译：公开了一种用于检测具有包括维特比解码器的衰减的低频分量的输入信号内的数据的解码器。维特比解码器内部数据与其输出位一起使用，以将恢复的直流（DC）分量和输入信号之间的延迟减少为零。结果，实现了DC恢复的精度提高和相应的比特误码率降低。

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