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1. 发明申请

US20110080939A1 BASELINE WANDER COMPENSATION FOR PERPENDICULAR RECORDING 有权
标题翻译：基线广泛补偿
公开(公告)号：US20110080939A1
公开(公告)日：2011-04-07
申请号：US12902976
申请日：2010-10-12
申请人： Marcus Marrow , Shih-Ming Shih
发明人： Marcus Marrow , Shih-Ming Shih
IPC分类号： H04L25/08 , H03K5/159
CPC分类号： H04L25/06 , G11B20/10046 , G11B20/10203 , G11B20/10296 , G11B2220/2512
摘要： A tail estimate signal which includes noise associated with baseline wander is generated. The tail estimate signal is generated by processing an input signal using a detector to obtain one or more decisions. Using the one or more decisions, the tail estimate signal is generated. The tail estimate signal is removed from the input signal.
摘要翻译：产生包括与基线漂移相关联的噪声的尾部估计信号。通过使用检测器处理输入信号来产生尾部估计信号以获得一个或多个决定。使用一个或多个决定，生成尾部估计信号。从输入信号中去除尾部估计信号。

2. 发明授权

US07869547B1 Preamble acquisition without second order timing loops 有权
标题翻译：前导采集无二阶定时循环
公开(公告)号：US07869547B1
公开(公告)日：2011-01-11
申请号：US11784195
申请日：2007-04-04
申请人： Haitao Xia , Shih-Ming Shih , Ryan Yu , Marcus Marrow , Kai Keung Chan
发明人： Haitao Xia , Shih-Ming Shih , Ryan Yu , Marcus Marrow , Kai Keung Chan
IPC分类号： H04L27/06
CPC分类号： H04L7/08
摘要： Timing acquisition is performed. A first portion of a preamble having an end is sampled. A first phase value is determined based on the sampled first portion. A second portion of the preamble is sampled and a second phase value is determined based on the sampled second portion. An end phase value is extrapolated based at least in part the first phase value and the second phase value. A clock is adjusted using the extrapolated end phase value.
摘要翻译：执行定时采集。对具有结束的前同步码的第一部分进行采样。基于采样的第一部分确定第一相位值。对前导码的第二部分进行采样，并且基于采样的第二部分来确定第二相位值。至少部分地基于第一相位值和第二相位值来推定结束相位值。使用外插结束相位值调整时钟。

3. 发明授权

US08077814B2 Preamble acquisition without second order timing loops 有权
标题翻译：前导采集无二阶定时循环
公开(公告)号：US08077814B2
公开(公告)日：2011-12-13
申请号：US12960043
申请日：2010-12-03
申请人： Haitao Xia , Shih-Ming Shih , Ryan Yu , Marcus Marrow , Kai Keung Chan
发明人： Haitao Xia , Shih-Ming Shih , Ryan Yu , Marcus Marrow , Kai Keung Chan
IPC分类号： H04L27/06
CPC分类号： H04L7/08
摘要： A clock is adjusted by obtaining a first plurality of samples and a second plurality of samples associated with a preamble portion of a data packet. The first plurality of samples and the second plurality of samples are sampled using a clock. A first intermediate value is determined based at least in part on the first plurality of samples and a second intermediate value is determined based at least in part on the second plurality of samples. An ending value associated with an end of the preamble portion is determined based at least in part on the first intermediate value and the second intermediate value. The clock is adjusted based at least in part on the ending value without use of a second order timing loop.
摘要翻译：通过获得与数据分组的前导部分相关联的第一多个样本和第二多个样本来调整时钟。使用时钟对第一多个采样和第二多个采样进行采样。至少部分地基于第一多个样本确定第一中间值，并且至少部分地基于第二多个样本来确定第二中间值。至少部分地基于第一中间值和第二中间值来确定与前导码部分的结尾相关联的结束值。时钟至少部分地基于结束值进行调整，而不使用二阶定时循环。

4. 发明授权

US07835466B1 Baseline wander compensation for perpendicular recording 有权
标题翻译：垂直记录的基线漂移补偿
公开(公告)号：US07835466B1
公开(公告)日：2010-11-16
申请号：US11786762
申请日：2007-04-11
申请人： Marcus Marrow , Shih-Ming Shih
发明人： Marcus Marrow , Shih-Ming Shih
IPC分类号： H04L25/06 , H04L25/10
CPC分类号： H04L25/06 , G11B20/10046 , G11B20/10203 , G11B20/10296 , G11B2220/2512
摘要： Baseline wander is removed. A first decision signal is generated from an input signal using a first detector. Baseline wander associated with the input signal is estimated using the first decision signal. The estimated baseline wander is removed from the input signal. A second decision signal is generated from the input signal with the baseline wander removed using a second detector.
摘要翻译：基线漂流被删除。使用第一检测器从输入信号生成第一判定信号。使用第一判定信号估计与输入信号相关联的基线漂移。从输入信号中去除估计的基线漂移。使用第二检测器从输入信号产生第二判定信号，其中基线漂移被去除。

5. 发明授权

US08320512B2 Preamble acquisition without second order timing loops 有权
标题翻译：前导采集无二阶定时循环
公开(公告)号：US08320512B2
公开(公告)日：2012-11-27
申请号：US13291024
申请日：2011-11-07
申请人： Haitao Xia , Shih-Ming Shih , Ryan Yu , Marcus Marrow , Kai Keung Chan
发明人： Haitao Xia , Shih-Ming Shih , Ryan Yu , Marcus Marrow , Kai Keung Chan
IPC分类号： H04L7/00
CPC分类号： H04L7/08
摘要： A clock is adjusted by obtaining a first plurality of samples and a second plurality of samples associated with a preamble portion of a data packet. The first plurality of samples and the second plurality of samples are sampled using a clock. A first intermediate value is determined based at least in part on the first plurality of samples and a second intermediate value is determined based at least in part on the second plurality of samples. An ending value associated with an end of the preamble portion is determined based at least in part on the first intermediate value and the second intermediate value. The clock is adjusted based at least in part on the ending value without use of a second order timing loop.
摘要翻译：通过获得与数据分组的前导部分相关联的第一多个样本和第二多个样本来调整时钟。使用时钟对第一多个采样和第二多个采样进行采样。至少部分地基于第一多个样本确定第一中间值，并且至少部分地基于第二多个样本来确定第二中间值。至少部分地基于第一中间值和第二中间值来确定与前导码部分的结尾相关联的结束值。时钟至少部分地基于结束值进行调整，而不使用二阶定时循环。

6. 发明申请

US20120117414A1 PREAMBLE ACQUISITION WITHOUT SECOND ORDER TIMING LOOPS 有权
标题翻译：前瞻性收购，没有第二个订单时机
公开(公告)号：US20120117414A1
公开(公告)日：2012-05-10
申请号：US13291024
申请日：2011-11-07
申请人： Haitao Xia , Shih-Ming Shih , Ryan Yu , Marcus Marrow , Kai Keung Chan
发明人： Haitao Xia , Shih-Ming Shih , Ryan Yu , Marcus Marrow , Kai Keung Chan
IPC分类号： G06F1/08
CPC分类号： H04L7/08
摘要： A clock is adjusted by obtaining a first plurality of samples and a second plurality of samples associated with a preamble portion of a data packet. The first plurality of samples and the second plurality of samples are sampled using a clock. A first intermediate value is determined based at least in part on the first plurality of samples and a second intermediate value is determined based at least in part on the second plurality of samples. An ending value associated with an end of the preamble portion is determined based at least in part on the first intermediate value and the second intermediate value. The clock is adjusted based at least in part on the ending value without use of a second order timing loop.
摘要翻译：通过获得与数据分组的前导部分相关联的第一多个样本和第二多个样本来调整时钟。使用时钟对第一多个采样和第二多个采样进行采样。至少部分地基于第一多个样本确定第一中间值，并且至少部分地基于第二多个样本来确定第二中间值。至少部分地基于第一中间值和第二中间值来确定与前导码部分的结尾相关联的结束值。时钟至少部分地基于结束值进行调整，而不使用二阶定时循环。

7. 发明授权

US08284870B1 Timing loop 有权
标题翻译：定时循环
公开(公告)号：US08284870B1
公开(公告)日：2012-10-09
申请号：US11350258
申请日：2006-02-07
申请人： Marcus Marrow , Shih-Ming Shih , Hemant Thapar
发明人： Marcus Marrow , Shih-Ming Shih , Hemant Thapar
IPC分类号： H04L27/00
CPC分类号： H04L25/03057 , H04L25/03267 , H04L25/03885 , H04L2025/03503
摘要： Recovering a data signal is disclosed. Recovering includes receiving an input signal from a magnetic recording channel, sampling the input signal according to a sampling clock having a sampling phase wherein the sampling phase is determined at least in part by comparing the sampled input signal to a signal associated with a decision, and filtering the sampled input signal according to a target.
摘要翻译：公开了恢复数据信号。恢复包括从磁记录通道接收输入信号，根据具有取样相位的采样时钟对输入信号进行采样，其中采样相位至少部分地通过将采样的输入信号与决定相关联的信号进行比较来确定，以及根据目标对采样的输入信号进行滤波。

8. 发明授权

US08149954B2 Baseline wander compensation for perpendicular recording 有权
标题翻译：垂直记录的基线漂移补偿
公开(公告)号：US08149954B2
公开(公告)日：2012-04-03
申请号：US12902976
申请日：2010-10-12
申请人： Marcus Marrow , Shih-Ming Shih
发明人： Marcus Marrow , Shih-Ming Shih
IPC分类号： H04L25/06 , H04L25/10
CPC分类号： H04L25/06 , G11B20/10046 , G11B20/10203 , G11B20/10296 , G11B2220/2512
摘要： A tail estimate signal which includes noise associated with baseline wander is generated. The tail estimate signal is generated by processing an input signal using a detector to obtain one or more decisions. Using the one or more decisions, the tail estimate signal is generated. The tail estimate signal is removed from the input signal.
摘要翻译：产生包括与基线漂移相关联的噪声的尾部估计信号。通过使用检测器处理输入信号来产生尾部估计信号以获得一个或多个决定。使用一个或多个决定，生成尾部估计信号。从输入信号中去除尾部估计信号。

9. 发明申请

US20110075779A1 PREAMBLE ACQUISITION WITHOUT SECOND ORDER TIMING LOOPS 有权
标题翻译：前瞻性收购，没有第二个订单时机
公开(公告)号：US20110075779A1
公开(公告)日：2011-03-31
申请号：US12960043
申请日：2010-12-03
申请人： Haitao Xia , Shih-Ming Shih , Ryan Yu , Marcus Marrow , Kai Keung Chan
发明人： Haitao Xia , Shih-Ming Shih , Ryan Yu , Marcus Marrow , Kai Keung Chan
IPC分类号： H04L7/00
CPC分类号： H04L7/08
摘要： A clock is adjusted by obtaining a first plurality of samples and a second plurality of samples associated with a preamble portion of a data packet. The first plurality of samples and the second plurality of samples are sampled using a clock. A first intermediate value is determined based at least in part on the first plurality of samples and a second intermediate value is determined based at least in part on the second plurality of samples. An ending value associated with an end of the preamble portion is determined based at least in part on the first intermediate value and the second intermediate value. The clock is adjusted based at least in part on the ending value without use of a second order timing loop.
摘要翻译：通过获得与数据分组的前导部分相关联的第一多个样本和第二多个样本来调整时钟。使用时钟对第一多个采样和第二多个采样进行采样。至少部分地基于第一多个样本确定第一中间值，并且至少部分地基于第二多个样本来确定第二中间值。至少部分地基于第一中间值和第二中间值来确定与前导码部分的结尾相关联的结束值。时钟至少部分地基于结束值进行调整，而不使用二阶定时循环。

10. 发明授权

US07917563B1 Read channel processor 有权
标题翻译：读通道处理器
公开(公告)号：US07917563B1
公开(公告)日：2011-03-29
申请号：US11350388
申请日：2006-02-07
申请人： Shih-Ming Shih , Hemant Thapar , Marcus Marrow
发明人： Shih-Ming Shih , Hemant Thapar , Marcus Marrow
IPC分类号： G06F17/10
CPC分类号： H03H21/0012 , G11B20/10009 , G11B20/10037 , G11B20/10046 , G11B20/10222 , G11B20/10296 , G11B20/1037 , G11B2220/2516 , G11B2220/2537
摘要： Adapting a read channel processor is disclosed. Adapting includes determining a target output for input data from a variable target function, determining a filter output corresponding to the input data from a programmable filter having programmable filter coefficients, comparing the target output and the filter output, and recursively updating both the variable target function and the programmable filter coefficients to improve the comparison between the target output and the filter output.
摘要翻译：公开了适配读通道处理器。适应包括从可变目标函数确定输入数据的目标输出，从具有可编程滤波器系数的可编程滤波器确定对应于输入数据的滤波器输出，比较目标输出和滤波器输出，以及递归地更新可变目标函数和可编程滤波器系数，以改善目标输出和滤波器输出之间的比较。

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