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31. 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。

32. 发明授权

US07639444B2 Real-time channel adaptation 失效
标题翻译：实时通道调整
公开(公告)号：US07639444B2
公开(公告)日：2009-12-29
申请号：US10737563
申请日：2003-12-15
申请人： Robert Allen Hutchins , Glen Alan Jaquette , David Berman , Constantin Michael Melas
发明人： Robert Allen Hutchins , Glen Alan Jaquette , David Berman , Constantin Michael Melas
IPC分类号： G11B5/09 , G11B5/035 , H04L27/10 , H04L27/18 , G11C29/00
CPC分类号： G11B20/10009
摘要： Disclosed is a technique for updating a read-detect channel. A signal is processed in a read-detect channel that has one or more programmable registers. While signals continue to be processed by the read-detect channel, it is determined with a channel auxiliary processor whether to dynamically replace values of the one or more programmable registers. When it is determined that values of the one or more programmable registers are to be replaced, a channel auxiliary processor determines values for the one or more programmable registers and replaces existing values for the one or more programmable registers with the determined values.
摘要翻译：公开了一种更新读取检测通道的技术。在具有一个或多个可编程寄存器的读取检测通道中处理信号。当信号继续由读取检测通道处理时，用信道辅助处理器确定是否动态地替换一个或多个可编程寄存器的值。当确定要替换一个或多个可编程寄存器的值时，信道辅助处理器确定一个或多个可编程寄存器的值，并用所确定的值替换一个或多个可编程寄存器的现有值。

33. 发明授权

US6118745A Acquisition of highly variable data frequency by digital edge processing 失效
标题翻译：通过数字边缘处理获取高可变数据频率
公开(公告)号：US6118745A
公开(公告)日：2000-09-12
申请号：US13058
申请日：1998-01-26
申请人： Robert Allen Hutchins , Glen Alan Jaquette , Kazuhiro Tsuruta
发明人： Robert Allen Hutchins , Glen Alan Jaquette , Kazuhiro Tsuruta
IPC分类号： G11B7/0037 , G11B7/005 , G11B19/28 , G11B20/10 , G11B20/14 , G11B7/00
CPC分类号： G11B20/1403 , G11B20/10009 , G11B7/0037 , G11B7/005
摘要： Disclosed is a digital edge processor frequency control for estimating the center frequency of a recorded signal having a known format, such as data recorded on a CLV optical disk or on magnetic tape. The read channel includes a sampling detector which samples the recorded signal at a known rate to provide edge position signals (PAT) indicating the location of recorded pulse edges. An edge pattern identifier detects whether the edge signals of the recording signal match a predetermined element of the known format. Examples of predetermined elements include a pulse of a known length and whose edges are spaced a known distance, a predetermined pulse pattern, or a pulse or pattern at a known location. An interval counter is coupled to the pattern identifier for measuring the interval length between the edges of the matching pulse or pattern in units of the sample length. A center frequency estimator calculates the period of the center frequency of the matching edges by relating the matching edge interval length to a predetermined nominal wave length for the predetermined element of the known format. The result is a Tau that is used to establish the center frequency for the digital PLL.
摘要翻译：公开了一种用于估计具有已知格式的记录信号的中心频率的数字边缘处理器频率控制，诸如记录在CLV光盘或磁带上的数据。读通道包括采样检测器，其以已知的速率采样所记录的信号，以提供指示所记录的脉冲边缘位置的边缘位置信号（PAT）。边缘图案标识符检测记录信号的边缘信号是否与已知格式的预定元素匹配。预定元件的示例包括已知长度的脉冲，并且其边缘在已知位置处间隔已知距离，预定脉冲图案或脉冲或图案。间隔计数器耦合到模式标识符，用于以样本长度为单位测量匹配脉冲或图案的边缘之间的间隔长度。中心频率估计器通过将匹配边缘间隔长度与已知格式的预定元素的预定标称波长相关联来计算匹配边缘的中心频率的周期。结果是用于建立数字PLL的中心频率的Tau。

34. 发明授权

US06278747B1 Method and apparatus for performing digital detection of data stored on an optical medium 失效
标题翻译：用于对存储在光学介质上的数据执行数字检测的方法和装置
公开(公告)号：US06278747B1
公开(公告)日：2001-08-21
申请号：US09039124
申请日：1998-03-13
申请人： Robert Allen Hutchins , Glen Alan Jaquette , Kazuhiro Tsuruta
发明人： Robert Allen Hutchins , Glen Alan Jaquette , Kazuhiro Tsuruta
IPC分类号： H03D100
CPC分类号： H04L25/069 , G11B20/10046 , H04L25/062 , H04L25/4902
摘要： A method and apparatus for detecting data written on a recording medium are disclosed. The recording medium, such as an optical or magnetic medium, is initially sensed by a transducer to produce an analog data signal waveform. The analog data signal waveform is then digitized by an analog-to-digital convertor to produce a set of digitized data samples. The set of digitized data samples may be equalized to reduce noise. Subsequently, a mid-point sample is inserted between each two samples within the set of equalized data samples utilizing a mid-point interpolation algorithm. With the additional points provided by mid-point interpolation, the absence or presence of a detection event, such as a peak or a transition, between every two samples within the set of equalized data samples are determined.
摘要翻译：公开了一种用于检测写在记录介质上的数据的方法和装置。最初由换能器感测记录介质，例如光学或磁介质，以产生模拟数据信号波形。然后模拟数据信号波形由模数转换器数字化，以产生一组数字化数据采样。数字化数据样本集可以被均衡以减少噪声。随后，使用中点插值算法，在均衡数据样本集合内的每个两个样本之间插入中点样本。通过中点插值提供的附加点，确定在该均衡数据样本集合内的每两个采样之间不存在或存在检测事件，例如峰值或转变。

35. 发明授权

US08872573B2 Gain control with multiple integrators 有权
标题翻译：增益控制与多个积分器
公开(公告)号：US08872573B2
公开(公告)日：2014-10-28
申请号：US13342881
申请日：2012-01-03
申请人： Jacob Lee Dahle , Robert Allen Hutchins , Sedat Oelcer , Larry LeeRoy Tretter
发明人： Jacob Lee Dahle , Robert Allen Hutchins , Sedat Oelcer , Larry LeeRoy Tretter
IPC分类号： H03K5/00 , H04B1/06 , G11B20/10 , G11B5/09
CPC分类号： G11B20/10009 , G11B5/09 , G11B20/10027 , G11B20/10037 , G11B20/10046 , G11B20/10055 , G11B20/10074 , G11B20/10175 , G11B20/10212 , G11B20/10425 , G11B2220/90
摘要： A method according to one embodiment includes receiving an increment signal at a first integrator when a second integrator overflows; receiving a decrement signal at the first integrator when the second integrator underflows; and incrementing or decrementing a gain applied to an analog signal based on receipt of the increment or decrement signal. A system according to one embodiment includes a first integrator configured to cause incrementing of a gain applied to an analog signal based on receipt of an increment signal when a second integrator overflows, the first integrator being configured to cause decrementing of the gain applied to the analog signal based on receipt of a decrement signal when the second integrator underflows; and the second integrator.
摘要翻译：根据一个实施例的方法包括当第二积分器溢出时在第一积分器处接收增量信号; 当第二积分器下溢时，在第一积分器处接收递减信号; 以及基于所述增量或减量信号的接收递增或递减施加到模拟信号的增益。根据一个实施例的系统包括第一积分器，其被配置为当第二积分器溢出时，基于接收到增量信号来增加施加到模拟信号的增益，所述第一积分器被配置为引起施加到模拟信号的增益的递减当第二积分器下溢时基于接收到递减信号的信号; 和第二个积分器。

36. 发明授权

US06940682B2 Data read transducers for determining lateral position of a tape head with respect to longitudinal servo bands of magnetic tape 失效
公开(公告)号：US06940682B2
公开(公告)日：2005-09-06
申请号：US10660436
申请日：2003-09-10
申请人： Nhan Xuan Bui , Robert Allen Hutchins , Glen Alan Jaquette , Larry Leeroy Tretter , Eiji Ogura , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Robert Allen Hutchins , Glen Alan Jaquette , Larry Leeroy Tretter , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： In a magnetic tape system, during lateral repositioning of a tape head between servo bands, the servo head is not on a servo band and is unable to provide servo position information. Hence, information about the lateral position may be lost. A control system selectively senses data read transducers of the tape head; and, upon detecting a servo signal of a servo band from a sensed data read transducer, determines the lateral position of the tape head with respect to the detected servo band based upon the position of the data read transducer that sensed the detected servo signal.

37. 发明授权

US5680383A Data-transition threshold following in optical recording 失效
标题翻译：光学记录中的数据转换阈值
公开(公告)号：US5680383A
公开(公告)日：1997-10-21
申请号：US726307
申请日：1996-10-02
申请人： Alan Robert Clark , Robert Allen Hutchins , Glen Alan Jaquette , Ara Sarkis Patapoutian , Pantas Sutardja
发明人： Alan Robert Clark , Robert Allen Hutchins , Glen Alan Jaquette , Ara Sarkis Patapoutian , Pantas Sutardja
IPC分类号： G11B7/0037 , G11B20/10 , G11B7/00
CPC分类号： G11B20/10203 , G11B20/10037 , G11B7/00375
摘要： In a pulse width modulated read signal channel for an optical disk drive, a data-transition threshold is maintained for data detection by a threshold tracking circuit that estimates the amplitude centerline data-transition threshold from the most recent maximum and minimum values of the read signal waveform. To improve the accuracy of the response of the centerline estimator, the threshold is increased or decreased based on the phase error at each read signal transition through the data-transition threshold. In addition, defects in the optical recording media are detected, and a defect present signal is used to inhibit the transition phase error input to the centerline estimator. This prevents the estimator from moving the threshold to an incorrect stable level. In addition, the defect present signal boosts the error feedback in the centerline estimator. The estimator then more quickly follows the read signal waveform. As a result, the estimator reacquires the centerline of the waveform after the read head moves past the defect without retriggering the defect detection circuit.
摘要翻译：在用于光盘驱动器的脉冲宽度调制读信号通道中，保持数据转换阈值，以便阈值跟踪电路进行数据检测，该阈值跟踪电路根据读取信号的最新最大值和最小值估计幅度中心线数据转换阈值波形为了提高中心线估计器的响应精度，基于每个读取信号通过数据转换阈值转换的相位误差来增大或减小阈值。此外，检测光记录介质中的缺陷，并且使用缺陷存在信号来抑制输入到中心线估计器的过渡相位误差。这样可以防止估计器将阈值移动到不正确的稳定水平。此外，缺陷存在信号提高了中心线估计器中的误差反馈。然后，估计器更快地跟随读信号波形。因此，在读取头移动超过缺陷而不重新触发缺陷检测电路之后，估计器重新获取波形的中心线。

38. 发明授权

US08019034B2 Common state-space multi-channel digital sample timing phase control of multiple read channels for correlated signals 失效
标题翻译：用于相关信号的多个读通道的通用状态空间多通道数字采样定时相位控制
公开(公告)号：US08019034B2
公开(公告)日：2011-09-13
申请号：US11870765
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： H04L7/00
CPC分类号： H03L7/0994 , G11B20/10037 , G11B20/1403 , G11B20/20 , H03L7/07 , H03L7/093
摘要： Common sample timing control for sample timing of multiple read channels, wherein the signal clocking of the signals received by the multiple read channels are correlated, for example from parallel tracks of magnetic tape that have been written simultaneously. In one embodiment, a common sample timing control comprises multiple phase error inputs, each indicating phase error of one of the read channels. Logic responsive to the multiple phase error inputs is configured to weight and crosscouple the phase error indication of each phase error input with the phase error indication of each other phase error input, and to apply gain related to the variance of noise of the phase error indications. Feedback logic is responsive to the crosscoupling and is configured to provide a sample timing phase estimate for each read channel.
摘要翻译：用于多个读取通道的采样定时的公共采样定时控制，其中由多个读取通道接收的信号的信号时钟与例如已经被同时写入的磁带的平行磁道相关。在一个实施例中，公共采样定时控制包括多个相位误差输入，每个相位误差输入指示一个读取通道的相位误差。响应于多个相位误差输入的逻辑被配置为对每个相位误差输入的相位误差指示进行加权和交叉耦合，并且将每个相位误差输入的相位误差指示与相位误差指示的噪声方差相关联。反馈逻辑响应于交叉耦合，并且被配置为为每个读取通道提供采样定时相位估计。

39. 发明授权

US07982992B2 Dual gain control for magnetic data storage system 失效
标题翻译：磁数据存储系统的双增益控制
公开(公告)号：US07982992B2
公开(公告)日：2011-07-19
申请号：US12351464
申请日：2009-01-09
申请人： Jacob Lee Dahle , Robert Allen Hutchins , Sedat Oelcer , Larry LeeRoy Tretter
发明人： Jacob Lee Dahle , Robert Allen Hutchins , Sedat Oelcer , Larry LeeRoy Tretter
IPC分类号： G11B5/09
CPC分类号： G11B5/09 , G11B20/10009 , G11B20/10027
摘要： A system according to one embodiment includes an analog input for receiving an analog signal; a variable gain amplifier coupled to the analog input; a first gain control circuit coupled to the variable gain amplifier for controlling the gain of the analog signal; an analog to digital converter for converting the analog signal to a digital signal; a first gain error generation circuit for generating a first gain error signal based on an output of the analog to digital converter, the first gain error signal or derivative thereof being received by the first gain control circuit; and a second gain error generation circuit for generating a second gain error signal based on the digital signal, the second gain error signal or derivative thereof being received by the first gain control circuit, wherein the first gain control circuit uses at least one of the gain error signals to control the gain of the analog signals.
摘要翻译：根据一个实施例的系统包括用于接收模拟信号的模拟输入; 耦合到模拟输入的可变增益放大器; 耦合到可变增益放大器的第一增益控制电路，用于控制模拟信号的增益; 用于将模拟信号转换成数字信号的模数转换器; 第一增益误差产生电路，用于基于所述模数转换器的输出产生第一增益误差信号，所述第一增益误差信号或其导数由所述第一增益控制电路接收; 以及第二增益误差产生电路，用于根据由第一增益控制电路接收的数字信号，第二增益误差信号或其导数产生第二增益误差信号，其中第一增益控制电路使用增益中的至少一个误差信号来控制模拟信号的增益。

40. 发明授权

US07773326B2 Methods for multi-channel data detection phase locked loop error combination 失效
标题翻译：多通道数据检测方法锁相环错误组合
公开(公告)号：US07773326B2
公开(公告)日：2010-08-10
申请号：US11870885
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： H04L7/0029 , G11B20/10009 , G11B20/10222 , G11B20/10425 , G11B2220/90 , H03L7/07 , H03L7/087 , H03L7/091 , H04L7/0025 , H04L7/0054
摘要： Phase-error combination methods 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; combining the received phase error information and generating a combined phase error; and applying the combined phase error to at least one channel phase locked loop. Error signal combination comprises receiving 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, weighted error signal is applied 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方法包括接收关于每个通道的相位误差信息; 组合所接收的相位误差信息并产生组合相位误差; 以及将组合的相位误差应用于至少一个通道锁相环。误差信号组合包括相对于每个通道接收与锁相环相关的信号的误差信息; 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。组合的加权误差信号被施加到至少一个通道锁相环。

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