公开(公告)号：US5490091A

公开(公告)日：1996-02-06

申请号：US203357

申请日：1994-03-01

申请人： Andrew Kogan ,  Alexander Taratorin ,  Alexander Tesler ,  Dmitry Varsanofiev

发明人： Andrew Kogan ,  Alexander Taratorin ,  Alexander Tesler ,  Dmitry Varsanofiev

IPC分类号： G11B20/10 ,  G11B20/18 ,  G11B20/24 ,  G11B27/36 ,  G11B5/09

CPC分类号： G11B20/10055 ,  G11B20/10009 ,  G11B20/182 ,  G11B20/24 ,  G11B27/36

摘要： A method and apparatus for measuring the error rate of a magnetic recording device, such as a hard disk storing a set of data. The apparatus has a partial response maximum likelihood data detecting channel (PRML channel) which differs from a conventional PRML channel by including a noise processing unit (66) which is connected between the output of an A/D converter (54) and the input of a sequence detector (60), and a histogrammer (70), which is connected to the output of a noise processing unit. The method consists of estimating a sequence of noise samples received from the output of the A/D converter (54), processing the sequence of noise samples according to a plurality of predetermined sets of processing coefficients, accumulating a plurality of histograms of segregated processed noise samples, and processing the plurality of histograms so as to determine a dependence of a number of errors on a preselected criterion which characterizes a signal-to-noise ratio of the PRML channel. The above dependence can be extrapolated for an actual error rate of the channel being tested.

摘要翻译： 一种用于测量诸如存储一组数据的硬盘的磁记录装置的错误率的方法和装置。 该装置具有与常规PRML信道不同的部分响应最大似然数据检测信道（PRML信道），其包括连接在A / D转换器（54）的输出端和输入端口之间的噪声处理单元（66） 序列检测器（60）和连接到噪声处理单元的输出端的直方图（70）。 该方法包括估计从A / D转换器（54）的输出接收到的噪声样本序列，根据多个预定的处理系数集合处理噪声样本序列，累积分离的处理噪声的多个直方图 采样和处理多个直方图，以便确定多个误差对预选的标准的依赖性，其表征PRML信道的信噪比。 对于正在测试的通道的实际错误率，可以推断出上述依赖性。

公开(公告)号：US20060221481A1

公开(公告)日：2006-10-05

申请号：US11093929

申请日：2005-03-30

申请人： Alexander Taratorin

发明人： Alexander Taratorin

IPC分类号： G11B5/09 ,  G11B20/14

CPC分类号： G11B5/02 ,  G11B20/10194 ,  G11B2005/0013 ,  G11B2005/0029

摘要： A method is presented for precompensation of Non-Linear Transition Shift (NLTS) in magnetic recording media using a perpendicular recording write head. The method includes maintaining a count of non-transition data bits (“zeroes”) preceding a data transition (“one”) to be written. A precompensation value is assigned which correlates to the count of non-transition data bits preceding the data transition to be written. The assigned precompensation value is then applied to delay timing of a write signal sent to the perpendicular recording write head so that the location of the actual written data transition more closely aligns with an ideal location of the data transition to be written.

摘要翻译： 提出了一种用于使用垂直记录写头在磁记录介质中非线性转换移位（NLTS）进行预补偿的方法。 该方法包括保持要被写入的数据转换（“1”）之前的非转换数据位（“零”）的计数。 分配预补偿值，其与要写入的数据转换之前的非转换数据位的计数相关。 然后将分配的预补偿值应用于发送到垂直记录写头的写入信号的延迟定时，使得实际写入数据转换的位置更接近于要写入的数据转换的理想位置。

公开(公告)号：US20140378859A1

公开(公告)日：2014-12-25

申请号：US13927085

申请日：2013-06-25

申请人： Alexander Taratorin ,  Serguei Pantchenko

发明人： Alexander Taratorin ,  Serguei Pantchenko

IPC分类号： A61B5/053 ,  A61B5/00

CPC分类号： A61B5/0533 ,  A61B5/6826 ,  A61B5/7203 ,  A61B5/7214

摘要： Proposed is a method of multichannel GSR detection for improving measurement accuracy and noise/artifact rejection in measurement of the galvanic skin response on the skin of an individual. The method comprises multichannel GSR signal detection with at least two electrode pairs that are attached to a body of an individual in contact with the skin in different locations, wherein the GSR signals are measured and recorded while the level of excitation of the nervous system of the individual varies. The method is based on the fact that only events that show high temporal correlation in two or more signal registration channels are considered to be physiological GSR reactions. Time-domain correlation allows not only improved detection of high-amplitude events but also improved sensitivity to smaller events that were ignored in standard bipolar GSR recording.

摘要翻译： 提出了一种多通道GSR检测方法，用于在测量个体皮肤上的电流皮肤反应时提高测量精度和噪声/赝像抑制。 该方法包括具有至少两个电极对的多通道GSR信号检测，所述至少两个电极对连接到在不同位置处与皮肤接触的个体的身体，其中测量和记录GSR信号，同时所述GSR信号的神经系统的激发水平 个人不一。 该方法基于以下事实：仅在两个或更多个信号注册通道中显示高时间相关性的事件被认为是生理GSR反应。 时域相关性不仅可以改善高振幅事件的检测，而且可以提高标准双极GSR记录中被忽略的较小事件的灵敏度。

公开(公告)号：US07126773B1

公开(公告)日：2006-10-24

申请号：US11093929

申请日：2005-03-30

申请人： Alexander Taratorin

发明人： Alexander Taratorin

IPC分类号： G11B5/09 ,  G11B5/02

CPC分类号： G11B5/02 ,  G11B20/10194 ,  G11B2005/0013 ,  G11B2005/0029

摘要： A method is presented for precompensation of Non-Linear Transition Shift (NLTS) in magnetic recording media using a perpendicular recording write head. The method includes maintaining a count of non-transition data bits (“zeroes”) preceding a data transition (“one”) to be written. A precompensation value is assigned which correlates to the count of non-transition data bits preceding the data transition to be written. The assigned precompensation value is then applied to delay timing of a write signal sent to the perpendicular recording write head so that the location of the actual written data transition more closely aligns with an ideal location of the data transition to be written.

摘要翻译： 提出了一种用于使用垂直记录写头在磁记录介质中非线性转换移位（NLTS）进行预补偿的方法。 该方法包括保持要被写入的数据转换（“1”）之前的非转换数据位（“零”）的计数。 分配预补偿值，其与要写入的数据转换之前的非转换数据位的计数相关。 然后将分配的预补偿值应用于发送到垂直记录写头的写入信号的延迟定时，使得实际写入数据转换的位置更接近于要写入的数据转换的理想位置。