专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06216148B1 Adaptive analog equalizer for partial response channels 有权
标题翻译：用于部分响应通道的自适应模拟均衡器
公开(公告)号：US06216148B1
公开(公告)日：2001-04-10
申请号：US09191249
申请日：1998-11-12
申请人： Patrick J. Moran , Ivan Tin-Yam Chan , Ke Han
发明人： Patrick J. Moran , Ivan Tin-Yam Chan , Ke Han
IPC分类号： G06G702
CPC分类号： G11B20/10046 , G11B20/10009 , G11B2020/10944
摘要： A single analog filter structure within a partial response channel combines an antialias low pass filter and a time domain waveform shaping equalizer upstream of a digital sampler. The filter also improves latencies associated with timing acquisition of a sampler clock generator loop by removing the latency of a separate equalization filter. The filter also provides a method for adapting a combination of internal filter state voltages and currents in real time for optimizing pole locations of the analog filter structure, during both data and timing recovery operations of the channel.
摘要翻译：部分响应通道内的单个模拟滤波器结构将数字采样器上游的抗锯齿低通滤波器和时域波形整形均衡器相结合。滤波器还通过消除单独的均衡滤波器的延迟来改进与采样器时钟发生器回路的定时采集相关的延迟。滤波器还提供了一种用于在通道的数据和定时恢复操作期间实时地适配内部滤波器状态电压和电流的组合以优化模拟滤波器结构的极点位置的方法。

2. 发明授权

US09803982B2 Heading estimation for determining a user's location 有权
公开(公告)号：US09803982B2
公开(公告)日：2017-10-31
申请号：US14426604
申请日：2014-04-28
申请人： INTEL CORPORATION , Ke Han , Ke Ding , Jingyi Ma , Yuhuan Huang
发明人： Ke Han , Ke Ding , Jingyi Ma , Yuhuan Huang
IPC分类号： G01C21/16
CPC分类号： G01C21/16
摘要： Technologies for determining a user's location by a mobile computing device include detecting, based on sensed inertial characteristics of the mobile computing device, that a user of the mobile computing device has taken a physical step in a direction. The mobile computing device determines a directional heading of the mobile computing device in the direction and a variation of an orientation of the mobile computing device relative to a previous orientation of the mobile computing device at a previous physical step of the user based on the sensed inertial characteristics. The mobile computing device further applies a Kalman filter to determine a heading of the user based on the determined directional heading of the mobile computing device and the variation of the orientation and determines an estimated location of the user based on the user's determined heading, an estimated step length of the user, and a previous location of the user at the previous physical step.

3. 发明授权

US09469893B2 Age-hardening process featuring anomalous aging time 有权
标题翻译：时效硬化过程具有异常老化时间
公开(公告)号：US09469893B2
公开(公告)日：2016-10-18
申请号：US13903501
申请日：2013-05-28
申请人： Ke Han , Pingli Mao , Yan Xin
发明人： Ke Han , Pingli Mao , Yan Xin
IPC分类号： C22F1/10
CPC分类号： C22F1/10 , C22C19/057
摘要： This document describes a process/strategy for age hardening nickel based alloys to create desirable properties with reduced energy expenditure. The inventive process introduces isolated atom nucleation sites to accelerate the nucleation rate by approximately 36 times, thereby permitting age hardening to occur in significantly less time and with significantly less energy expenditure.
摘要翻译：本文件描述了一种用于时效硬化镍基合金以降低能量消耗产生理想特性的方法/策略。本发明的方法引入了分离的原子成核位点以将成核速率加速约36倍，从而允许在显着更少的时间和显着更少的能量消耗下发生时效硬化。

4. 发明授权

US07881164B1 Sync mark detection with polarity uncertainty 有权
标题翻译：同步标记检测与极性不确定性
公开(公告)号：US07881164B1
公开(公告)日：2011-02-01
申请号：US11906655
申请日：2007-10-02
申请人： Ke Han , Zining Wu
发明人： Ke Han , Zining Wu
IPC分类号： G11B7/00 , G11B5/09 , G11B20/10 , G11B5/035
CPC分类号： G11B5/59616 , G11B5/09 , G11B20/10009 , G11B20/10222 , G11B2020/1232 , G11B2020/1287 , G11B2220/2516
摘要： Systems and methods for detecting a disk sync mark are provided. The systems and methods for detecting the disk sync mark rely on a detecting the disk sync mark on at least one timing interval. A window of data read bits from a particular disk sector are examined to determine whether they match the disk sync mark. The disk sync mark may be differentiated from expected versions of the disk sync mark using a calculated set of thresholds.
摘要翻译：提供了用于检测磁盘同步标记的系统和方法。用于检测盘同步标记的系统和方法依赖于在至少一个定时间隔上检测盘同步标记。检查来自特定磁盘扇区的数据读取位的窗口，以确定它们是否与磁盘同步标记相匹配。磁盘同步标记可以使用计算的一组阈值与磁盘同步标记的预期版本不同。

5. 发明申请

US20100269961A1 Method and apparatus for making high strength metals with a face-centered-cubic structure 审中-公开
标题翻译：用于制造具有面心立方结构的高强度金属的方法和装置
公开(公告)号：US20100269961A1
公开(公告)日：2010-10-28
申请号：US12799687
申请日：2010-04-29
申请人： Ke Han , Robert Walsh , David Embury
发明人： Ke Han , Robert Walsh , David Embury
IPC分类号： C21D6/04
CPC分类号： C21D1/613 , B21C9/00 , B21C23/001 , B21C23/002 , C21D6/04 , C21D7/02 , C21D7/10 , C21D8/06 , C21D9/5732 , C22F1/00
摘要： A process for increasing the strength of pure copper and other fcc matrix alloys while maintaining ductility. The method is particularly applicable to face-centered-cubic materials that undergo dynamic recovery when strain-hardened at room temperature. The material is first subjected to equal channel angular pressing to create an ultra fine grain structure (“UFG”). The UFG sample is then subjected to cryogenic drawing and finally to subcryogenic deformation.
摘要翻译：提高纯铜和其他fcc基质合金的强度同时保持延展性的方法。该方法特别适用于在室温下应变硬化时经历动态回复的面心立方体材料。该材料首先进行等通道角挤压以产生超细晶粒结构（“UFG”）。然后将UFG样品进行低温拉伸，最后进行亚原子变形。

6. 发明授权

US07715134B1 Demodulation compensation for spiral servo tracks in hard disk drives 有权
标题翻译：硬盘驱动器中螺旋伺服磁道的解调补偿
公开(公告)号：US07715134B1
公开(公告)日：2010-05-11
申请号：US12330789
申请日：2008-12-09
申请人： Pantas Sutardja , Ke Han
发明人： Pantas Sutardja , Ke Han
IPC分类号： G11B5/02
CPC分类号： G11B5/5526 , G11B5/596 , G11B5/59605
摘要： A servo compensation processor includes an input that receives samples of a waveform generated from a servo track, the servo track including servo data and synchronization symbols. A peak estimator estimates a first location of a peak amplitude of the waveform. A phase determiner determines a sampling phase based on a first number of the samples between one of the synchronization symbols and a first predetermined one of the samples. A compensator determines a compensation amount based on a compensation curve and the sampling phase. A location estimator determines a second location of the peak amplitude based on the first location and the compensation amount. A location determiner determines a center location of the servo track based on the second location.
摘要翻译：伺服补偿处理器包括接收从伺服轨迹产生的波形的采样的输入，所述伺服轨迹包括伺服数据和同步符号。峰值估计器估计波形的峰值幅度的第一位置。相位确定器基于同步符号之一和样本中的第一预定样本之间的第一数目的样本来确定采样相位。补偿器基于补偿曲线和采样阶段来确定补偿量。位置估计器基于第一位置和补偿量来确定峰值幅度的第二位置。位置确定器基于第二位置确定伺服轨道的中心位置。

7. 发明授权

US07203017B1 Timing recovery for data storage channels with buffered sectors 有权
标题翻译：具有缓冲扇区的数据存储通道的定时恢复
公开(公告)号：US07203017B1
公开(公告)日：2007-04-10
申请号：US10794733
申请日：2004-03-05
申请人： Pantas Sutardja , Ke Han , Zining Wu
发明人： Pantas Sutardja , Ke Han , Zining Wu
IPC分类号： G11B5/09
CPC分类号： G11B20/1403 , G11B20/10009 , G11B20/10222 , G11B20/10527 , G11B2020/1062
摘要： A storage channel, e.g., for a disk drive system, may asynchronously sample and buffer an entire sector, and then process the buffered sector to recover timing information. The storage channel may operate in an open-loop and utilize an exhaustive search to determine timing parameters. Alternatively, the storage channel may operative in a closed-loop, processing the sector once, and feeding back information obtained during decoding to the timing loop.
摘要翻译：诸如用于磁盘驱动器系统的存储通道可以异步地对整个扇区进行采样和缓冲，然后处理缓冲的扇区以恢复定时信息。存储通道可以在开环中操作并利用穷举搜索来确定时序参数。或者，存储通道可以在闭环中操作，一次处理该扇区，并将解码期间获得的信息反馈到定时循环。

8. 发明授权

US07079342B1 Method and apparatus for asymmetry correction in magnetic recording channels 失效
标题翻译：磁记录通道中不对称校正的方法和装置
公开(公告)号：US07079342B1
公开(公告)日：2006-07-18
申请号：US10974604
申请日：2004-10-27
申请人： Ke Han , Zining Wu
发明人： Ke Han , Zining Wu
IPC分类号： G11B5/09
CPC分类号： G11B20/10009 , G11B20/10046 , G11B2005/0016 , G11B2220/2516
摘要： Asymmetry correction for an MR read head in a magnetic recording channel employs an exponential function to correct MR read head asymmetry. The asymmetry correction function has the form ƒASC(y)=y−q(eay+e−ay−2), wherein a is a parameter that can be adjusted for optimal channel performance, and q is an asymmetry correction coefficient.
摘要翻译：磁记录通道中的MR读取头的不对称校正采用指数函数来校正MR读取头不对称。不对称校正函数具有形式为（ASC）（y）= yq（e-Ay）+ e - - - （2）），其中a为参数可以调整以获得最佳的通道性能，q是非对称校正系数。

9. 发明授权

US07002761B1 Demodulation compensation for spiral servo tracks in hard disk drives 有权
标题翻译：硬盘驱动器中螺旋伺服磁道的解调补偿
公开(公告)号：US07002761B1
公开(公告)日：2006-02-21
申请号：US10644166
申请日：2003-08-20
申请人： Pantas Sutardja , Ke Han
发明人： Pantas Sutardja , Ke Han
IPC分类号： G11B20/06
CPC分类号： G11B5/5526 , G11B5/596 , G11B5/59605
摘要： A hard disk drive, and method and computer program therefor, comprising a hard disk having one or more spiral servo tracks written thereon, wherein each of the servo tracks comprises servo data comprising one or more synchronization symbols; a head adapted to produce a waveform as the head moves across the servo track; a sampler adapted to obtain a plurality of samples of the waveform, wherein the plurality of samples of the waveform comprises one of the synchronization symbols; and a processor adapted to determine an estimated location of a peak amplitude of the waveform with respect to the plurality of samples of the waveform, determine a sampling phase defined by a number of the samples between one of the synchronization symbols and a predetermined one of the samples of the waveform, determine a compensation amount based on a compensation curve and the sampling phase, determine a refined estimated location of the peak amplitude of the waveform based on the estimated location of the peak amplitude of the waveform and the compensation amount, and determine the location of the center of the servo track based on the refined estimated location of the peak amplitude of the waveform.
摘要翻译：一种硬盘驱动器及其方法和计算机程序，包括其上写有一个或多个螺旋伺服磁道的硬盘，其中每个伺服磁道包括包括一个或多个同步符号的伺服数据; 当头部移动穿过伺服轨道时适于产生波形的头部; 适于获得所述波形的多个采样的采样器，其中所述波形的所述多个采样包括所述同步符号之一; 以及处理器，适于确定相对于所述波形的所述多个样本的所述波形的峰值幅度的估计位置，确定由所述同步符号中的一个与所述多个样本之间的预定的一个基于补偿曲线和采样相位确定补偿量，基于波形的峰值幅度和补偿量的估计位置确定波形的峰值幅度的精确估计位置，并确定波形样本基于波形峰值幅度的精确估计位置的伺服磁道中心的位置。

10. 发明申请

US20140352853A1 Age-Hardening Process Featuring Anomalous Aging Time 有权
标题翻译：年龄加固过程具有异常老化时间
公开(公告)号：US20140352853A1
公开(公告)日：2014-12-04
申请号：US13903501
申请日：2013-05-28
申请人： Ke Han , Pingli Mao , Yan Xin
发明人： Ke Han , Pingli Mao , Yan Xin
IPC分类号： C22F1/10
CPC分类号： C22F1/10 , C22C19/057
摘要： This document describes a process/strategy for age hardening nickel based alloys to create desirable properties with reduced energy expenditure. The inventive process introduces isolated atom nucleation sites to accelerate the nucleation rate by approximately 36 times, thereby permitting age hardening to occur in significantly less time and with significantly less energy expenditure.
摘要翻译：本文件描述了一种用于时效硬化镍基合金以降低能量消耗产生理想特性的方法/策略。本发明的方法引入了分离的原子成核位点以将成核速率加速约36倍，从而允许在显着更少的时间和显着更少的能量消耗下发生时效硬化。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式