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1. 发明授权

US09477350B2 Method and apparatus for active ultrasonic touch devices 有权
标题翻译：有源超声波触摸装置的方法和装置
公开(公告)号：US09477350B2
公开(公告)日：2016-10-25
申请号：US13451288
申请日：2012-04-19
申请人： Samuel W. Sheng , Shih-Ming Shih , Yenyu Hsieh
发明人： Samuel W. Sheng , Shih-Ming Shih , Yenyu Hsieh
IPC分类号： G06F3/043 , G06F3/041
CPC分类号： G06F3/0436 , G06F3/0418 , G06F3/043
摘要： A system for determining a user indication is disclosed. The system includes a communication interface configured to send a signal to be used to propagate a freely propagating signal through a propagating medium with a surface and receive the freely propagating signal that has been disturbed by a disturbance on the surface. The system also includes a processor coupled to the communication interface and configured to process the received signal to determine a user indication associated with the disturbance.
摘要翻译：公开了一种用于确定用户指示的系统。该系统包括通信接口，其被配置为发送用于通过具有表面的传播介质传播自由传播信号的信号，并且接收已经被表面上的扰动干扰的自由传播信号。该系统还包括耦合到通信接口并被配置为处理接收到的信号以确定与干扰相关联的用户指示的处理器。

2. 发明申请

US20120274609A1 METHOD AND APPARATUS FOR ACTIVE ULTRASONIC TOUCH DEVICES 有权
标题翻译：主动超声波触摸装置的方法和装置
公开(公告)号：US20120274609A1
公开(公告)日：2012-11-01
申请号：US13451288
申请日：2012-04-19
申请人： Samuel W. Sheng , Shih-Ming Shih , Yenyu Hsieh
发明人： Samuel W. Sheng , Shih-Ming Shih , Yenyu Hsieh
IPC分类号： G06F3/043
CPC分类号： G06F3/0436 , G06F3/0418 , G06F3/043
摘要： A system for determining a user indication is disclosed. The system includes a communication interface configured to send a signal to be used to propagate a freely propagating signal through a propagating medium with a surface and receive the freely propagating signal that has been disturbed by a disturbance on the surface. The system also includes a processor coupled to the communication interface and configured to process the received signal to determine a user indication associated with the disturbance.
摘要翻译：公开了一种用于确定用户指示的系统。该系统包括通信接口，其被配置为发送用于通过具有表面的传播介质传播自由传播信号的信号，并且接收已经被表面上的扰动干扰的自由传播信号。该系统还包括耦合到通信接口并被配置为处理接收到的信号以确定与干扰相关联的用户指示的处理器。

3. 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。

4. 发明授权

US5796358A Methods and structure for combined analog and digital automatic gain control in sampled-data receivers 失效
标题翻译：采样数据接收机中组合模拟和数字自动增益控制的方法和结构
公开(公告)号：US5796358A
公开(公告)日：1998-08-18
申请号：US693587
申请日：1996-08-01
申请人： Shih-Ming Shih , James Wilson Rae , Richard A. Contreras , Jenn-Gang Chern
发明人： Shih-Ming Shih , James Wilson Rae , Richard A. Contreras , Jenn-Gang Chern
IPC分类号： H03M1/18 , H03M1/00
CPC分类号： H03M1/183
摘要： Analog-to-digital (ADC) output bits are partitioned in a way that simplifies the gain error calculations. Simplification of the gain error calculations allows a reduction in the complexity of the circuits needed to implement automatic gain control (AGC).
摘要翻译：模数（ADC）输出位以简化增益误差计算的方式进行分区。增益误差计算的简化可以降低实现自动增益控制（AGC）所需电路的复杂度。

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

US07940615B2 Single PLL demodulation of pre-formatted information embedded in optical recording medium 有权
标题翻译：预先格式化信息的单PLL解调嵌入在光学记录介质中
公开(公告)号：US07940615B2
公开(公告)日：2011-05-10
申请号：US12173135
申请日：2008-07-15
申请人： Louis J. Serrano , Shih-Ming Shih
发明人： Louis J. Serrano , Shih-Ming Shih
IPC分类号： G11B7/00
CPC分类号： G11B20/10222 , G11B7/0053 , G11B20/10009 , G11B20/1403
摘要： A method and apparatus demodulate pre-formatted information embedded in an optical recording medium. The demodulation includes (a) receiving a wobble signal representing data symbols frequency-modulated on a carrier frequency, (b) generating a phase delta signal representing a phase difference between the wobble signal and a corresponding locked signal having the carrier frequency, (c) first sampling the phase delta signal at a data sampling interval to produce first values, (d) second sampling the phase delta signal at each halfway of the data sampling interval to generate second values, (e) determining, based on a difference between two successive second values, if the first sampling is performed at timing corresponding to an end of each data symbol, and (e) adjusting sampling timing of the first sampling towards the timing corresponding to each end of the data symbols, if the sampling timing does not corresponds to the end of each data symbol.
摘要翻译：解调嵌入在光学记录介质中的预格式化信息的方法和装置。解调包括（a）接收表示在载波频率上进行频率调制的数据符号的摆动信号，（b）产生表示摆动信号和具有载波频率的相应锁定信号之间的相位差的相位增量信号，（c）首先以数据采样间隔对相位增量信号进行采样以产生第一值，（d）在数据采样间隔的每一半处对相位增量信号进行二次采样以产生第二值，（e）基于两个连续的第二值，如果在与每个数据符号的结尾对应的定时执行第一采样，以及（e）如果采样定时不对应，则将调整第一采样的采样定时朝向对应于数据符号的每个端的定时到每个数据符号的末尾。

8. 发明申请

US20100070834A1 Soft output viterbi detector with error event output 有权
标题翻译：具有错误事件输出的软输出维特比检测器
公开(公告)号：US20100070834A1
公开(公告)日：2010-03-18
申请号：US12455803
申请日：2009-06-04
申请人： Shih-Ming Shih , Kwok Alfred Yeung
发明人： Shih-Ming Shih , Kwok Alfred Yeung
IPC分类号： H03M13/03 , G06F11/00
CPC分类号： H03M13/25 , H03M13/4138 , H03M13/4146
摘要： Outputting information for recovering a sequence of data is disclosed. Outputting includes making a decision that selects a first sequence of states corresponding to a surviving path, determining a second sequence of states corresponding to a non-surviving path associated with the decision, and defining a possible error event based at least in part on the second sequence of states.
摘要翻译：公开了用于恢复数据序列的输出信息。输出包括进行选择与幸存路径相对应的第一状态序列的决定，确定与所述决定相关联的不存在路径相对应的第二状态序列，以及至少部分地基于所述第二序列定义可能的错误事件状态序列。

9. 发明授权

US06563889B1 Method and apparatus for adapting the boost of a read channel filter 有权
标题翻译：用于适应读通道滤波器的升压的方法和装置
公开(公告)号：US06563889B1
公开(公告)日：2003-05-13
申请号：US09165182
申请日：1998-10-01
申请人： Shih-Ming Shih , Tzu-wang Pan , Richard A. Contreras
发明人： Shih-Ming Shih , Tzu-wang Pan , Richard A. Contreras
IPC分类号： G11B500
CPC分类号： G11B20/10009 , G11B20/18
摘要： A system and method are disclosed for equalizing a read signal from a data storage media is disclosed. An analog output signal is equalized by reading the data storage media using an analog equalization filter. The analog output of the analog equalization filter is converted to a raw digital output signal. The raw digital output signal is processed to detect and correct an error in the raw digital output signal. The error is detected and an adjustment is made to the boost of the analog equalization filter according to the error detected.
摘要翻译：公开了一种用于均衡来自数据存储介质的读取信号的系统和方法。通过使用模拟均衡滤波器读取数据存储介质来使模拟输出信号相等。模拟均衡滤波器的模拟输出转换为原始数字输出信号。处理原始数字输出信号以检测和纠正原始数字输出信号中的错误。检测到错误，根据检测到的错误对模拟均衡滤波器的升压进行调整。

10. 发明授权

US06247159B1 Method and apparatus for encoding a binary signal 有权
标题翻译：用于对二进制信号进行编码的方法和装置
公开(公告)号：US06247159B1
公开(公告)日：2001-06-12
申请号：US09389872
申请日：1999-09-02
申请人： Shih-Ming Shih , Hemant Thapar
发明人： Shih-Ming Shih , Hemant Thapar
IPC分类号： G06F1110
CPC分类号： G11B20/1426 , G11B20/10009 , G11B2020/1434 , G11B2020/1446 , H03M5/145 , H03M13/31
摘要： A system and method described for avoiding catastrophic error sequences in a media code sequence of symbols for data storage on a storage medium according to EPRML. The system and method includes modulation encoding user data which is to be stored on the storage medium using a modulation encoder. The modulation encoder outputs a channel code modulation output symbol sequence. The modulation code is defined according to a modulation criteria wherein the set of all possible modulation output symbol sequences is constrained in a manner which excludes certain excluded modulation output symbol sequences. A precoder precodes the channel code modulation output symbol sequence according to a precoding transfer function. The precoding transfer function transforms the channel code modulation output symbol sequence into a media code sequence of symbols and the precoding transfer function is defined so that when modulation encoding is performed according to the modulation criteria, the media code sequence of symbols is constrained to exclude EPRML catastrophic error sequences of greater than a determined length. The combination of the modulation encoding and the precoding prevents the media code sequence of symbols from including EPRML catastrophic error sequences greater than the determined length.
摘要翻译：一种系统和方法，用于避免根据EPRML在存储介质上存储数据的媒体码符号序列中的灾难性错误序列。该系统和方法包括使用调制编码器对要存储在存储介质上的用户数据进行调制编码。调制编码器输出信道码调制输出符号序列。根据调制准则来定义调制码，其中所有可能的调制输出符号序列的集合以排除某些被排除的调制输出符号序列的方式被约束。预编码器根据预编码传递函数对信道码调制输出符号序列进行预编码。预编码传递函数将信道码调制输出符号序列转换为符号的媒体码序列，并且定义预编码传送函数，使得当根据调制准则执行调制编码时，限制符号的媒体码序列以排除EPRML 大于确定长度的灾难性错误序列。调制编码和预编码的组合防止符号的媒体码序列包括大于所确定的长度的EPRML灾难性错误序列。

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