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1. 发明申请

US20070177292A1 Using at least one servo channel to provide timing recovery and timing information to data channels 失效
标题翻译：使用至少一个伺服通道来向数据通道提供定时恢复和定时信息
公开(公告)号：US20070177292A1
公开(公告)日：2007-08-02
申请号：US11346391
申请日：2006-02-01
申请人： Nhan Bui , Giovanni Cherubini , Evangelos Eleftheriou , Robert Hutchins , Glen Jaquette , Jens Jelitto , Sedat Oelcer , Mark Taylor
发明人： Nhan Bui , Giovanni Cherubini , Evangelos Eleftheriou , Robert Hutchins , Glen Jaquette , Jens Jelitto , Sedat Oelcer , Mark Taylor
IPC分类号： G11B5/09
CPC分类号： G11B27/36 , G11B20/10037 , G11B20/10046 , G11B20/10055 , G11B20/10212 , G11B20/10259 , G11B20/1403 , G11B20/1876 , G11B27/10 , G11B2020/10592 , G11B2220/90 , G11B2220/95
摘要： Provided is a read channel, storage drive, and method to process signals read from a storage medium. At least one data channel including an interpolator and equalizer and a servo channel includes an interpolator. A timing recovery function processes a timing error from the interpolator in the servo channel to calculate interpolation timing information used by the interpolator to interpolate a servo channel signal. A path is coupled to the timing recovery function and the interpolator in the at least one data channel to communicate the interpolation timing information to the interpolator in the at least one data channel. The interpolator in the at least one data channel is configured to use the interpolation timing information to interpolate an asynchronous data channel signal.
摘要翻译：提供了一种用于处理从存储介质读取的信号的读通道，存储驱动器和方法。包括内插器和均衡器和伺服信道的至少一个数据信道包括内插器。定时恢复功能处理来自伺服信道中的内插器的定时误差，以计算内插器使用的内插定时信息来内插伺服信道信号。路径耦合到至少一个数据信道中的定时恢复功能和内插器，以将内插定时信息传送到至少一个数据信道中的内插器。所述至少一个数据信道中的内插器被配置为使用内插定时信息来内插异步数据信道信号。

2. 发明申请

US20070098061A1 Apparatus, system, and method for adaptive asynchronous equalization using leakage 有权
标题翻译：使用泄漏进行自适应异步均衡的装置，系统和方法
公开(公告)号：US20070098061A1
公开(公告)日：2007-05-03
申请号：US11263189
申请日：2005-10-31
申请人： Evangelos Eleftheriou , Robert Hutchins , Jens Jelitto , Sedat Oelcer
发明人： Evangelos Eleftheriou , Robert Hutchins , Jens Jelitto , Sedat Oelcer
IPC分类号： H03H7/40 , G06F17/10
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10175 , G11B20/10481 , H04L25/03019 , H04L2025/03484 , H04L2025/03681
摘要： An apparatus, system, and method are disclosed for adaptive asynchronous equalization using leakage. An equalizer sums products of a plurality of tap signals from a delay line sampling a read signal and a plurality of corresponding tap coefficients to form an equalized signal in an asynchronous time domain having a first sampling rate. A leaky function module calculates a leaky function for each tap coefficient in the asynchronous time domain. An adaptation module adapts each of the tap coefficients as the leaky function for each tap coefficient summed with a signal-dependent updating function for each tap coefficient.
摘要翻译：公开了一种使用泄漏进行自适应异步均衡的装置，系统和方法。均衡器对来自对读取信号进行采样的延迟线和多个对应抽头系数的多个抽头信号的乘积相加，以在具有第一采样率的异步时域中形成均衡信号。泄漏功能模块计算异步时域中每个抽头系数的泄漏函数。适配模块将每个抽头系数适配为每个抽头系数的泄漏函数，用于针对每个抽头系数的与信号相关的更新函数相加。

3. 发明申请

US20070047127A1 Dynamically adapting a read channel equalizer 失效
标题翻译：动态调整读通道均衡器
公开(公告)号：US20070047127A1
公开(公告)日：2007-03-01
申请号：US11215409
申请日：2005-08-30
申请人： Robert Hutchins , Sedat Oelcer , Jens Jelitto , Evangelos Eleftheriou
发明人： Robert Hutchins , Sedat Oelcer , Jens Jelitto , Evangelos Eleftheriou
IPC分类号： G11B5/035
CPC分类号： G11B5/035 , G11B20/10046 , G11B20/10212 , G11B20/1201
摘要： Provided is a read channel incorporated in a storage device to process signals read from a storage medium. The read channel includes an equalizer equalizing input read signals to produce equalizer output signals. A detector senses an adjusted equalizer output signal to determine an output value comprising data represented by the input read signals. An equalizer adaptor receives the output value from the detector to determine a first error signal used to adjust the equalizer operations. A component adjusts the equalizer output signals being transmitted to the detector, wherein the component is adjusted by a second error signal calculated from the output value from the detector, wherein the first and second error signals are different.
摘要翻译：提供了一种结合在存储装置中以读取从存储介质读取的信号的读通道。读通道包括均衡器均衡输入读信号以产生均衡器输出信号。检测器感测调整的均衡器输出信号以确定包括由输入读取信号表示的数据的输出值。均衡器适配器从检测器接收输出值以确定用于调整均衡器操作的第一误差信号。一个分量调整正被发送到检测器的均衡器输出信号，其中通过从检测器的输出值计算的第二误差信号调整分量，其中第一和第二误差信号是不同的。

4. 发明申请

US20070133115A1 Using a measured error to determine coefficients to provide to an equalizer to use to equalize an input signal 失效
标题翻译：使用测量误差来确定提供给均衡器的系数以用于均衡输入信号
公开(公告)号：US20070133115A1
公开(公告)日：2007-06-14
申请号：US11298386
申请日：2005-12-08
申请人： Evangelos Eleftheriou , Robert Hutchins , Jens Jelitto , Sedat Oelcer
发明人： Evangelos Eleftheriou , Robert Hutchins , Jens Jelitto , Sedat Oelcer
IPC分类号： G11B5/035
CPC分类号： G11B5/09 , G11B5/00817 , G11B20/10009 , G11B20/10046
摘要： Provided are a read channel, storage drive and method using a measured error to determine coefficients to provide to an equalizer to use to equalize an input signal. A read channel is incorporated in a storage device to process signals read from a storage medium. An equalizer uses coefficients to equalize input read signals to produce equalizer output signals. A detector processes adjusted equalizer output signals to determine output values comprising data represented by the input read signals. An equalizer adaptor is enabled to provide a reference measured error and coefficients used to produce the adjusted equalizer signals that are associated with the reference measured error. The equalizer adaptor computes new equalizer coefficients to use to equalize input read signals that result in a new measured error from the detector and computes a new measured error for the new equalizer coefficients. The equalizer adaptor determines whether the new measured error is degraded with respect to the reference measured error and saves the new equalizer coefficients and the new measured error in response to determining that the new measured error is not degraded with respect to the reference measured error. The equalizer adaptor provides the equalizer coefficients associated with the reference measured error to the equalizer to use to equalize input read signals in response to determining that the new measured error is degraded with respect to the reference measured error.
摘要翻译：提供了读通道，存储驱动器和使用测量误差的方法来确定提供给均衡器的系数以用于均衡输入信号。读取通道并入存储装置中以处理从存储介质读取的信号。均衡器使用系数来均衡输入读取信号以产生均衡器输出信号。检测器处理经调整的均衡器输出信号以确定包括由输入读信号表示的数据的输出值。启用均衡器适配器以提供参考测量误差和用于产生与参考测量误差相关联的经调整的均衡器信号的系数。均衡器适配器计算新的均衡器系数以用于均衡来自检测器的导致新的测量误差的输入读取信号，并且计算新的均衡器系数的新的测量误差。均衡器适配器确定新的测量误差是否相对于参考测量误差降级，并且响应于确定新的测量误差相对于参考测量误差而不降级而保存新的均衡器系数和新的测量误差。均衡器适配器将与参考测量误差相关联的均衡器系数提供给均衡器以用于响应于确定新的测量误差相对于参考测量误差而降级来均衡输入读取信号。

5. 发明申请

US20070047121A1 Read channel apparatus for asynchronous sampling and synchronous equalization 有权
标题翻译：用于异步采样和同步均衡的通道设备
公开(公告)号：US20070047121A1
公开(公告)日：2007-03-01
申请号：US11213127
申请日：2005-08-26
申请人： Evangelos Eleftheriou , Robert Hutchins , Glen Jaquette , Jens Jelitto , Sedat Oelcer
发明人： Evangelos Eleftheriou , Robert Hutchins , Glen Jaquette , Jens Jelitto , Sedat Oelcer
IPC分类号： G11B5/09
CPC分类号： G11B20/10009 , G11B20/10027 , G11B20/10046 , G11B20/10055
摘要： A read channel and method using that read channel are disclosed. The read channel comprises an analog to digital converter which asynchronously samples at a fixed rate an analog signal formed by reading a data track, where that data track was written to a data storage medium at a symbol rate and an interpolator interconnected with the analog to digital converter. The read channel further comprises a fractionally-spaced equalizer, where the interpolator provides an interpolated signal to the fractionally-spaced equalizer at an interpolation rate, where that interpolation rate is greater than the symbol rate. The fractionally-spaced equalizer forms a synchronous equalized signal. The read channel further comprises a gain control module interconnected with the fractionally-spaced equalizer, and a sequence detector interconnected with the gain control module.
摘要翻译：公开了使用该读通道的读通道和方法。读通道包括模数转换器，其以固定速率异步采样通过读取数据轨道形成的模拟信号，其中数据轨道以符号速率写入数据存储介质，并且与模数转换器互连的内插器转换器。读通道还包括分数间隔的均衡器，其中内插器以内插速率向分数间隔的均衡器提供内插信号，其中该内插速率大于符号率。分数间隔均衡器形成同步均衡信号。读通道还包括与分数间隔均衡器互连的增益控制模块，以及与增益控制模块互连的序列检测器。

6. 发明申请

US20070171565A1 SYNCHRONOUS SERVO CHANNEL FOR LONGITUDINAL POSITION DETECTION AND POSITION ERROR SIGNAL GENERATION IN TAPE DRIVE SYSTEMS 有权
标题翻译：用于纵向位置检测的同步伺服通道和带状驱动系统中的位置错误信号产生
公开(公告)号：US20070171565A1
公开(公告)日：2007-07-26
申请号：US11340030
申请日：2006-01-26
申请人： Giovanni Cherubini , Evangelos Eleftheriou , Robert Hutchins , Jens Jelitto
发明人： Giovanni Cherubini , Evangelos Eleftheriou , Robert Hutchins , Jens Jelitto
IPC分类号： G11B5/584 , G11B5/09
CPC分类号： G11B5/584
摘要： A fully synchronous longitudinal position (LPOS) detection system is provided for improving the reliability of servo channels in tape systems. The system is based on the interpolation of the servo channel output signal, which is sampled by an analog-to-digital converter (ADC) at a fixed sampling rate, using a clock at a nominal frequency, so that interpolated signal samples are obtained at a predetermined fixed rate, independent of tape velocity. This predetermined fixed rate is defined in terms of samples per unit of length, as opposed to samples per unit of time, which is the measure of the ADC sampling rate. The resolution with which the servo channel signal is obtained at the interpolator output is thus determined by the step interpolation distance.
摘要翻译：提供了全同步纵向位置（LPOS）检测系统，用于提高磁带系统中伺服通道的可靠性。该系统基于使用以标称频率的时钟由固定采样率的模数转换器（ADC）采样的伺服信道输出信号的内插，从而获得内插信号样本一个预定的固定速率，与磁带速度无关。这个预定的固定速率是根据单位长度的样本来定义的，而不是每单位时间的样本，这是ADC采样率的量度。因此，通过步进插补距离来确定在内插器输出处获得伺服信号信号的分辨率。

7. 发明授权

US07777980B2 Multi-channel data detection phase locked loop error combination logic 失效
标题翻译：多通道数据检测锁相环路错误组合逻辑
公开(公告)号：US07777980B2
公开(公告)日：2010-08-17
申请号：US11870853
申请日：2007-10-11
申请人： Robert Allen Hutchins , Jens Jelitto , Sedat Oelcer
发明人： Robert Allen Hutchins , Jens Jelitto , Sedat Oelcer
IPC分类号： G11B5/09
CPC分类号： G11B20/10009 , G11B20/10037 , G11B20/10425
摘要： Phase-error combination for a multi-channel data detection system with a phase locked loop for each channel, comprises receiving phase error information with respect to each channel; combination logic configured to combine the received phase error information and generate a combined phase error; and a phase-error output configured to apply the combined phase error to at least one channel phase locked loop. Additionally, error signal combination comprises receiving error information of a signal relevant to a phase locked loop with respect to each channel; combination logic configured to combine the received error signal information and generate a combined error signal, weighting the received error signal information from each channel, for example with reliability information. An error compensation output is configured to apply the combined, weighted error signal to at least one channel phase locked loop.
摘要翻译：具有用于每个通道的锁相环的多通道数据检测系统的相位误差组合包括接收关于每个通道的相位误差信息; 组合逻辑，被配置为组合所接收的相位误差信息并产生组合的相位误差; 以及被配置为将组合的相位误差应用于至少一个通道锁相环的相位误差输出。另外，误差信号组合包括相对于每个信道接收与锁相环相关的信号的误差信息; 组合逻辑，其被配置为组合所接收的误差信号信息并产生组合误差信号，例如对可靠性信息加权来自每个信道的接收到的误差信号信息。误差补偿输出被配置为将组合的加权误差信号应用于至少一个通道锁相环。

8. 发明申请

US20090097606A1 METHODS FOR MULTI-CHANNEL DATA DETECTION PHASE LOCKED LOOP FREQUENCY ERROR COMBINATION 失效
标题翻译：多通道数据检测方法相位锁定环路频率误差组合
公开(公告)号：US20090097606A1
公开(公告)日：2009-04-16
申请号：US11870934
申请日：2007-10-11
申请人： Robert Allen Hutchins , Jens Jelitto , Sedat Oelcer
发明人： Robert Allen Hutchins , Jens Jelitto , Sedat Oelcer
IPC分类号： H03D3/24
CPC分类号： H04L7/0029 , H03L7/07 , H03L7/087 , H03L7/091 , H04L7/0025 , H04L7/0062 , H04L7/0083
摘要： Frequency error combination for a multi-channel data detection system with a phase locked loop for each channel, comprises receiving frequency error information of a signal relevant to a phase locked loop with respect to each channel; combining the received error signal information and generating a combined error signal, weighting the received error signal information from each channel, for example with reliability information. The combined frequency error signal is applied to at least one channel phase locked loop.
摘要翻译：针对每个通道具有锁相环的多通道数据检测系统的频率误差组合包括相对于每个通道接收与锁相环相关的信号的频率误差信息; 组合接收到的误差信号信息并产生组合误差信号，例如用可靠性信息对来自每个信道的接收到的误差信号进行加权。组合的频率误差信号被施加到至少一个通道锁相环。

9. 发明申请

US20090097536A1 MULTI-CHANNEL DATA DETECTION PHASE LOCKED LOOP FREQUENCY ERROR COMBINATION LOGIC 失效
标题翻译：多通道数据检测相位锁定频率错误组合逻辑
公开(公告)号：US20090097536A1
公开(公告)日：2009-04-16
申请号：US11870921
申请日：2007-10-11
申请人： Robert Allen Hutchins , Jens Jelitto , Sedat Oelcer
发明人： Robert Allen Hutchins , Jens Jelitto , Sedat Oelcer
IPC分类号： H04Q1/20
CPC分类号： G11B20/10009 , G11B20/10037 , G11B20/10425
摘要： Frequency error combination for a multi-channel data detection system with a phase locked loop for each channel, comprises receiving frequency error information with respect to each channel; combination logic configured to combine the received frequency error information and generate a combined phase error, weighting the received frequency error information from each channel; and a frequency error output configured to apply the combined frequency error to at least one channel phase locked loop.
摘要翻译：针对每个通道的具有锁相环的多通道数据检测系统的频率误差组合包括接收关于每个通道的频率误差信息; 组合逻辑，其被配置为组合所接收的频率误差信息并产生组合的相位误差，从每个信道对所接收的频率误差信息进行加权; 以及频率误差输出，被配置为将组合的频率误差应用于至少一个通道锁相环。

10. 发明授权

US07589927B2 Dynamically adapting a read channel equalizer 失效
标题翻译：动态调整读通道均衡器
公开(公告)号：US07589927B2
公开(公告)日：2009-09-15
申请号：US11215409
申请日：2005-08-30
申请人： Robert Allen Hutchins , Sedat Oelcer , Jens Jelitto , Evangelos S. Eleftheriou
发明人： Robert Allen Hutchins , Sedat Oelcer , Jens Jelitto , Evangelos S. Eleftheriou
IPC分类号： G11B5/35
CPC分类号： G11B5/035 , G11B20/10046 , G11B20/10212 , G11B20/1201
摘要： Provided is a read channel incorporated in a storage device to process signals read from a storage medium. The read channel includes an equalizer equalizing input read signals to produce equalizer output signals. A detector senses an adjusted equalizer output signal to determine an output value comprising data represented by the input read signals. An equalizer adaptor receives the output value from the detector to determine a first error signal used to adjust the equalizer operations. A component adjusts the equalizer output signals being transmitted to the detector, wherein the component is adjusted by a second error signal calculated from the output value from the detector, wherein the first and second error signals are different.
摘要翻译：提供了一种结合在存储装置中以读取从存储介质读取的信号的读通道。读通道包括均衡器均衡输入读信号以产生均衡器输出信号。检测器感测调整的均衡器输出信号以确定包括由输入读取信号表示的数据的输出值。均衡器适配器从检测器接收输出值以确定用于调整均衡器操作的第一误差信号。一个分量调整正被发送到检测器的均衡器输出信号，其中通过从检测器的输出值计算的第二误差信号调整分量，其中第一和第二误差信号是不同的。

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