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1. 发明授权

US10115420B2 Head gimbal assembly (HGA) support cartridge for magnetic head and disk testers 有权
公开(公告)号：US10115420B2
公开(公告)日：2018-10-30
申请号：US15081299
申请日：2016-03-25
申请人： Guzik Technical Enterprises
发明人： Nahum Guzik , Konstantin Perevoztchikov , Wei Zhuang
IPC分类号： G11B5/455 , G01R33/12
摘要： A unitary cartridge, or module, provides a self-contained, high accuracy, ready-to-use assembly for controlling fine positioning of a head gimbal assembly (HGA) disposed on a head mounting unit mounted on the cartridge, with respect to a spinstand or other device associated with a head tester. In a form, the head-mounting unit and a counterweight element are configured to be moveable relative to the base in opposite directions along a displacement axis in response to actuators in the cartridge, and are operative in concert with a damping assembly configured to interact with the counterweight element and the heads mounting unit to mitigate vibrational movement of the cartridge.

2. 发明申请

US20170141786A1 DIGITAL DOWN CONVERTER WITH EQUALIZATION 有权
公开(公告)号：US20170141786A1
公开(公告)日：2017-05-18
申请号：US15229578
申请日：2016-08-05
申请人： Guzik Technical Enterpises
发明人： Semen P. Volfbeyn , Anatoli B. Stein , Alexander Taratorin
IPC分类号： H03M1/60 , H03M1/08 , H03M1/06
CPC分类号： H03M1/60 , H03D7/165 , H03M1/0626 , H03M1/0836 , H03M1/1215 , H04B1/0014
摘要： A digital down converter with an equalizer translates an ADC output signal to a low frequency spectral region, followed by decimation. All operations of correction of the processed signal are carried out with a reduced sampling rate compared with sampling rates of the prior art. Equalization is performed only in a frequency pass band of the down converter. The achieved reduction of the required computation resources is sufficient to enable the down converter with equalization to operate in a real time mode.

3. 发明授权

US09634679B1 Digital down converter with equalization 有权
公开(公告)号：US09634679B1
公开(公告)日：2017-04-25
申请号：US15242467
申请日：2016-08-19
申请人： Guzik Technical Enterprises
发明人： Anatoli B. Stein , Semen P. Volfbeyn , Alexander Taratorin , Igor Tarnikov , Valeriy Serebryanskiy
IPC分类号： H03M1/12 , H03M1/06 , H03M1/00
CPC分类号： H03M1/0626 , H03M1/00 , H03M1/0695 , H03M1/12 , H03M1/1215 , H03M1/1245 , H04B1/0021
摘要： A digital down converter with equalization includes a composite ADC that performs demodulation of a received analog signal, converting the signal into in phase baseband signal and quadrature baseband signal. Equalization is performed to correct for misalignment of the frequency responses of the sub-ADCs in the composite ADC. In a form, ADC output signals are applied to a mixer array to frequency down-shift the digital form of the input signal, followed by digital filtering to effect convolutions of portions of the digital form of the input signal with a set of convolution coefficients determined so that the net processing is mathematically equivalent to down conversion with equalization. In another form, the ADC output signals are directly applied to a digital filter to effect both frequency down-shifting and convolutions, with filter coefficients determined so that the net processing is mathematically equivalent to down conversion with equalization.

4. 发明申请

US20160307588A1 HGA LOADER WITH OPTICAL ALIGNMENT FOR AUTOMATED MAGNETIC HEAD TESTING 有权
标题翻译：具有自动磁头检测的光学对准的HGA加载器
公开(公告)号：US20160307588A1
公开(公告)日：2016-10-20
申请号：US15081495
申请日：2016-03-25
申请人： Guzik Technical Enterprises
发明人： Nahum Guzik , Konstantin Perevoztchikov , Vladislav Klimov , Wei Zhuang
IPC分类号： G11B5/455 , G01R33/12
CPC分类号： G11B5/4555 , G01R33/12 , G01R33/1207 , G10H1/005 , Y10T29/4902 , Y10T29/49021
摘要： An HGA loader provides HGAs, in succession, to a multiple workstation head tester. An HGAs carrier station receives HGAs to be tested. An alignment station on the base includes an alignment surface which selectively rotates about an alignment axis. A camera generates images of an HGA on the alignment surface, which is rotated so that the HGA has a desired spatial orientation which is maintained as the HGA is transferred to an HGA testing workstation. A received, oriented HGA is positioned to enable read/write test operations on a disk rotating on an adjacent spinstand. To effect the successive position operations, a transporter includes a track overlying the workstations, and a carriage movable along the track, to pass from workstation to workstations. The loader is automatically operative under the control of a controller.
摘要翻译： HGA加载器连续向多台工作站头测试仪提供HGA。 HGA载波台接收待测试的HGA。基座上的对准台包括一对准表面，该对准表面围绕对准轴线选择性旋转。相机在对准表面上产生HGA的图像，其被旋转，使得HGA具有期望的空间取向，当HGA被传送到HGA测试工作站时保持。接收到的面向定位的HGA被定位成对在相邻的纺锤台上旋转的盘进行读/写测试操作。为了实现连续的位置操作，传送器包括覆盖工作站的轨道以及沿着轨道移动的托架，以从工作站传送到工作站。装载机在控制器的控制下自动运行。

5. 发明申请

US20150340063A1 Radially-Coherent Reading and Writing System and Method for a Magnetic Disk 有权
标题翻译：径向相干读写系统和磁盘的方法
公开(公告)号：US20150340063A1
公开(公告)日：2015-11-26
申请号：US14716390
申请日：2015-05-19
申请人： GUZIK TECHNICAL ENTERPRISES
发明人： Vladislav Klimov
IPC分类号： G11B20/10 , G11B27/32 , G11B20/12
CPC分类号： G11B20/1217 , G11B5/455 , G11B5/59616 , G11B5/59666 , G11B19/048 , G11B20/10 , G11B20/10259 , G11B20/1252 , G11B27/10 , G11B27/24 , G11B27/322 , G11B2020/1287
摘要： Radially-coherent data reading from, and data writing to, a magnetic disk use non-coherently written synchronization signals on the disk. In a form, the radially-coherent data reading and writing is performed using a magnetic head/disk tester which includes a spinstand for supporting a spinning magnetic disk, a magnetic head assembly, a write channel network for generating a write data signal for application to a write element of the magnetic head, a read channel for receiving a read-back signal from a read element of the magnetic head assembly, and a signal processing system that analyzes a read-back signal from a disk and provides synchronization signals for radially-coherent data reading and data writing.
摘要翻译：与磁盘的数据读取和数据写入的相干相干数据在磁盘上使用非相干写入的同步信号。在一种形式中，使用磁头/磁盘测试仪进行径向相干数据读取和写入，该磁头/磁盘测试器包括用于支撑旋转磁盘的纺锤架，磁头组件，用于产生写数据信号的写通道网络，用于应用于磁头的写入元件，用于从磁头组件的读取元件接收回读信号的读取通道，以及信号处理系统，其从盘分析回读信号并提供用于径向放大的同步信号，相干数据读取和数据写入。

6. 发明授权

US08879675B1 Synchronization system for a wireless receiver 有权
标题翻译：无线接收机的同步系统
公开(公告)号：US08879675B1
公开(公告)日：2014-11-04
申请号：US14283590
申请日：2014-05-21
申请人： Guzik Technical Enterprises
发明人： Anatoli B. Stein , Semen P. Velfbeyn
IPC分类号： H04L27/06 , H04L7/04 , H04L7/00
CPC分类号： H04L7/042 , H04L7/0004 , H04L27/0014 , H04L2027/0016 , H04L2027/0036 , H04L2027/0067 , H04L2027/0095
摘要： A synchronization system for initial setup of phases of local oscillators in a wireless receiver of a communication system characterized by transmission of data packets having a predetermined preamble consisting of M identical sections of L symbols followed by a single section of the same kind, multiplied by −1, and wherein the wireless receiver is operative to perform decimation in an RF demodulator. The synchronization system includes a twofold correlator, an accumulator, a multiplier, a threshold comparator, a carrier phase former and a clock phase former, and operates at a decimated symbols frequency, and performs not only preamble detection, but also symbols clock phase detection together with carrier phase detection, while enabling the theoretically possible noise immunity.
摘要翻译：一种用于在通信系统的无线接收机中初始建立本地振荡器的相位的同步系统，其特征在于传输具有由相同类型的单个部分的M个相同部分的M个相同部分组成的预定前导码的数据分组， 1，并且其中无线接收器可操作以在RF解调器中执行抽取。同步系统包括双重相关器，累加器，乘法器，阈值比较器，载波相位变换器和时钟相位变换器，并且以抽取符号频率工作，不仅执行前导码检测，而且还一起执行符号时钟相位检测具有载波相位检测，同时实现理论上可能的抗噪声能力。

7. 发明申请

US20140047198A1 DATA ACQUISITION DEVICE WITH REAL TIME DIGITAL TRIGGER 有权
标题翻译：具有实时数字触发器的数据采集设备
公开(公告)号：US20140047198A1
公开(公告)日：2014-02-13
申请号：US13568605
申请日：2012-08-07
申请人： Anatoli B. Stein , Igor Tarnikov , Valeriy Serebryanski
发明人： Anatoli B. Stein , Igor Tarnikov , Valeriy Serebryanski
IPC分类号： G06F12/00 , H03M13/00
CPC分类号： G01R13/0254
摘要： A data acquisition device incorporates a front end analog-to-digital converter (ADC), which is responsive to an applied analog input signal, sample that signal and provide digital data representative of the sampled signal. The digital data is applied to a data channel connected to a data acquisition memory, which stores data values representative of the sampled analog input signal. The digital data from the ADC is also applied to a real time a trigger channel connected to a composite function trigger equalizer and filter, a trigger processor and to a trigger memory. The trigger channel operates in real time to identify trigger events and store real-time trigger event occurrence signals in the trigger memory. A controller reads out the stored data values from the data acquisition memory by way of a data equalizer, in synchronism with corresponding real-time trigger event occurrence signals from the trigger memory.
摘要翻译：数据采集装置包含前端模数转换器（ADC），其响应所应用的模拟输入信号，采样信号并提供表示采样信号的数字数据。数字数据被应用于连接到数据采集存储器的数据通道，数据采集存储器存储表示采样的模拟输入信号的数据值。来自ADC的数字数据也实时应用于连接到复合功能触发均衡器和滤波器，触发处理器和触发存储器的触发通道。触发通道实时操作以识别触发事件并将实时触发事件发生信号存储在触发存储器中。控制器与来自触发存储器的相应的实时触发事件发生信号同步地通过数据均衡器从数据采集存储器中读出存储的数据值。

8. 发明授权

US08542142B2 Interleaved analog to digital converter with reduced number of multipliers for digital equalization 有权
标题翻译：具有数字均衡的乘法器数量减少的交错模数转换器
公开(公告)号：US08542142B2
公开(公告)日：2013-09-24
申请号：US13772925
申请日：2013-02-21
申请人： Guzik Technical Enterprises
发明人： Anatoli B. Stein , Semen P. Volfbeyn , Valeriy Serebryanskiy
IPC分类号： H03M1/12
CPC分类号： H03M1/121 , H03M1/0626 , H03M1/1215
摘要： A digital equalizer with a reduced number of multipliers for correction of the frequency responses of an interleaved ADC is disclosed. An exemplary interleaved analog to digital converter with digital equalization includes a composite ADC including M time interleaved sub-ADC, a demultiplexer, samples repositioning unit, a first PreFIRs transformer, a second PreFIRs transformer, K double buffer FIR filters, a PostFIRs transformer, a samples sequence restoration unit, and a multiplexer, coupled in series and providing an equalized, frequency response-corrected output.
摘要翻译：公开了一种数字均衡器，其具有用于校正交错ADC的频率响应的乘法器数目减少。具有数字均衡的示例性交错模数转换器包括复合ADC，包括M个时间交错子ADC，解复用器，样本重定位单元，第一PreFIR变压器，第二PreFIR变压器，K双缓冲FIR滤波器，PostFIR变压器，采样序列恢复单元和多路复用器，串联耦合并提供均衡的频率响应校正输出。

9. 发明申请

US20130214958A1 INTERLEAVED ANALOG TO DIGITAL CONVERTER WITH REDUCED NUMBER OF MULTIPLIERS FOR DIGITAL EQUALIZATION 有权
标题翻译：用于数字均衡的数字转换器的数字转换器的简化模拟
公开(公告)号：US20130214958A1
公开(公告)日：2013-08-22
申请号：US13772925
申请日：2013-02-21
申请人： Guzik Technical Enterprises
发明人： Anatoli B. Stein , Semen P. Volfbeyn , Valeriy Serebryanskiy
IPC分类号： H03M1/12
CPC分类号： H03M1/121 , H03M1/0626 , H03M1/1215
摘要： A digital equalizer with a reduced number of multipliers for correction of the frequency responses of an interleaved ADC is disclosed. An exemplary interleaved analog to digital converter with digital equalization includes a composite ADC including M time interleaved sub-ADC, a demultiplexer, samples repositioning unit, a first PreFIRs transformer, a second PreFIRs transformer, K double buffer FIR filters, a PostFIRs transformer, a samples sequence restoration unit, and a multiplexer, coupled in series and providing an equalized, frequency response-corrected output.
摘要翻译：公开了一种数字均衡器，其具有用于校正交错ADC的频率响应的乘法器数目减少。具有数字均衡的示例性交错模数转换器包括复合ADC，包括M个时间交错子ADC，解复用器，样本重定位单元，第一PreFIR变压器，第二PreFIR变压器，K双缓冲FIR滤波器，PostFIR变压器，采样序列恢复单元和多路复用器，串联耦合并提供均衡的频率响应校正输出。

10. 发明申请

US20130169463A1 INTERLEAVED ANALOG TO DIGITAL CONVERTER WITH DIGITAL EQUALIZATION 有权
标题翻译：具有数字均衡功能的数字转换器的模拟
公开(公告)号：US20130169463A1
公开(公告)日：2013-07-04
申请号：US13730071
申请日：2012-12-28
申请人： Guzik Technical Enterprises
发明人： Anatoli B. Stein , Semen P. Volfbeyn
IPC分类号： H03M1/12
CPC分类号： H03M1/12 , H03M1/1038 , H03M1/1215
摘要： An interleaved analog to digital converter with digital equalization includes a conversion-measurement-equalization unit and residual distortions reduction unit, and is operative in a calibration mode and converter mode. The conversion-measurement-equalization unit includes a composite ADC containing N sub-ADCs, equalizer, responses measurement unit and a coefficients calculator. The residual distortions reduction unit uses received measured frequency responses and equalizer coefficients, both from the conversion-measurement-equalization unit, as a base to calculate corrected frequency responses that are applied to the coefficients calculator for generation of equalizer coefficients for application to the equalizer. A residual distortions calculator of the residual distortions reduction unit, is responsive to measured frequency responses from the composite ADC and a current set of equalizer coefficients applied to the equalizer, to calculate residual frequency distortions that should have been expected to appear in the output signal of the ADC system if the current equalizer coefficients remain applied to the equalizer.
摘要翻译：具有数字均衡的交错模数转换器包括转换测量均衡单元和残余失真减少单元，并且在校准模式和转换器模式下操作。转换测量均衡单元包括包含N个子ADC，均衡器，响应测量单元和系数计算器的复合ADC。剩余失真减小单元使用来自转换测量均衡单元的接收的测量频率响应和均衡器系数作为基础，以计算应用于系数计算器的校正频率响应，以产生用于均衡器的均衡器系数。剩余失真减小单元的残余失真计算器响应于来自复合ADC的测量的频率响应和施加到均衡器的当前均衡器系数集合，以计算应该预期出现在输出信号中的残余频率失真 ADC系统，如果电流均衡器系数保持施加到均衡器。

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