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1. 发明授权

US08296471B2 Key activity detection system and method thereof 失效
标题翻译：关键活动检测系统及其方法
公开(公告)号：US08296471B2
公开(公告)日：2012-10-23
申请号：US13015190
申请日：2011-01-27
申请人： Sheng-Hung Wu
发明人： Sheng-Hung Wu
IPC分类号： G06F3/00 , G06F13/00
CPC分类号： G06F3/00
摘要： A key activity detection method, applied in an electronic device having at least a first key and a digital I/O pin, includes: switching the digital I/O pin to a first operation mode, so that a voltage of the digital I/O pin is decreased to a ground voltage; switching the digital I/O pin to a second operation mode, so that the voltage of the digital I/O pin is increased; measuring a first charge period of the voltage of the digital I/O pin; counting a first appearance times of the first charge period; judging whether the first key is stably activated according to the first appearance times of the first charge period.
摘要翻译：应用于具有至少第一密钥和数字I / O引脚的电子设备中的密钥活动检测方法包括：将数字I / O引脚切换到第一操作模式，使得数字I / O的电压引脚降为接地电压; 将数字I / O引脚切换到第二操作模式，使数字I / O引脚的电压增加; 测量数字I / O引脚的电压的第一充电周期; 计算第一充电周期的第一次出现时间; 根据第一充电期间的第一次出现时间判断第一密钥是否被稳定地激活。

2. 发明授权

US08270273B2 Calibration circuit and method thereof for data recovery 失效
标题翻译：校准电路及其数据恢复方法
公开(公告)号：US08270273B2
公开(公告)日：2012-09-18
申请号：US12571455
申请日：2009-10-01
申请人： Sheng-Hung Wu
发明人： Sheng-Hung Wu
IPC分类号： G11B20/18 , G11B20/10 , G11B7/00
CPC分类号： G11B20/10009 , G11B20/10055 , G11B20/1024 , G11B20/10509 , G11B2220/2562
摘要： A calibration circuit and a calibration method thereof for data recovery are provided. The calibration circuit includes an amplitude detector, a period detector, and a compensation circuit. The amplitude detector samples amplitudes of a data signal according to a zero-crossing signal and outputs an amplitude signal accordingly. The period detector counts a clock signal according to the zero-crossing signal and outputs a period signal accordingly. The compensation circuit receives the amplitude signal, the period signal, and the data signal. The compensation circuit adjusts a phase of the data signal by calculating differences between a reference signal and the amplitude signal and between the reference signal and the period signal and outputs a calibrated data signal accordingly. Accordingly, a better recognition performance on the data signal is achieved by calibrating the data signal in real-time.
摘要翻译：提供了一种用于数据恢复的校准电路及其校准方法。校准电路包括振幅检测器，周期检测器和补偿电路。幅度检测器根据过零信号采样数据信号的幅度，并相应地输出幅度信号。周期检测器根据过零信号对时钟信号进行计数，并相应地输出周期信号。补偿电路接收幅度信号，周期信号和数据信号。补偿电路通过计算参考信号和幅度信号之间以及参考信号和周期信号之间的差异来调整数据信号的相位，并相应地输出校准数据信号。因此，通过实时校准数据信号来实现对数据信号的更好的识别性能。

3. 发明申请

US20100316108A1 DEVICE AND METHOD OF DATA RECOVERY 失效
标题翻译：数据恢复的设备和方法
公开(公告)号：US20100316108A1
公开(公告)日：2010-12-16
申请号：US12605386
申请日：2009-10-26
申请人： Sheng-Hung WU
发明人： Sheng-Hung WU
IPC分类号： H04L27/01 , H04L7/00
CPC分类号： H04L7/033 , G11B20/10009 , G11B20/10037 , G11B20/10046 , G11B20/1012 , G11B20/10222 , G11B20/1024 , G11B20/10444 , G11B2220/2537 , H04L7/007
摘要： A data recovery device and a data recovery method are provided. The data recovery device includes an equalizer, a slicer, a phase lock loop (PLL) circuit, a detection circuit, and a compensation circuit. The equalizer adjusts a radio frequency (RF) signal according to a compensation signal and outputs an equalized RF signal sliced by the slicer according to a slicing level to output an AC_RF signal with segments. The PLL circuit outputs a clock according to phases of the AC_RF signal. The detection circuit calculates and outputs time intervals in the segments according to the clock and detects and outputs sampling heights in the segments. The compensation circuit selects at least two of the sampling heights, calculates a ratio of the selected sampling heights according to the outputs of the detection circuit, and outputs the compensation signal according to a result of comparison between the ratio and a corresponding reference.
摘要翻译：提供了数据恢复装置和数据恢复方法。数据恢复装置包括均衡器，限幅器，锁相环（PLL）电路，检测电路和补偿电路。均衡器根据补偿信号调整射频（RF）信号，并根据限幅电平输出由限幅器分片的均衡的RF信号，以输出带有段的AC_RF信号。 PLL电路根据AC_RF信号的相位输出时钟。检测电路根据时钟计算并输出片段中的时间间隔，并检测并输出片段中的采样高度。补偿电路选择采样高度中的至少两个，根据检测电路的输出计算所选择的采样高度的比例，并根据该比率与相应参考值之间的比较结果输出补偿信号。

4. 发明申请

US20060215704A1 System and method for utilizing broadcast time 审中-公开
标题翻译：利用广播时间的系统和方法
公开(公告)号：US20060215704A1
公开(公告)日：2006-09-28
申请号：US11137724
申请日：2005-05-24
申请人： Sheng-hung Wu
发明人： Sheng-hung Wu
IPC分类号： H04J3/00
CPC分类号： H04H60/68 , H04H40/18 , H04N21/235 , H04N21/4305 , H04N21/4348 , H04N21/435 , H04N21/472
摘要： A system for utilizing broadcast time is implemented on a receiving end of a digital broadcast system which is used to receive a digital broadcast signal including a broadcast content and a broadcast time. The system for utilizing broadcast time includes a receiving apparatus for receiving the digital broadcast signals; a broadcast time capturing apparatus for capturing the broadcast time from the digital broadcast signal based on a single action from a user; and an outputting apparatus for receiving the broadcast time and outputting it to the use for recognition. A method for utilizing broadcast time is also disclosed in the invention.
摘要翻译：在数字广播系统的接收端实现用于广播时间的系统，该系统用于接收包括广播内容和广播时间的数字广播信号。用于使用广播时间的系统包括用于接收数字广播信号的接收装置; 广播时间捕获装置，用于基于来自用户的单个动作从数字广播信号捕获广播时间; 以及输出装置，用于接收广播时间并将其输出用于识别用途。本发明还公开了一种利用广播时间的方法。

5. 发明申请

US20050273690A1 System and method for detecting codeword errors in error correction code or cyclic redundancy check code 失效
标题翻译：用于检测纠错码或循环冗余校验码中的码字错误的系统和方法
公开(公告)号：US20050273690A1
公开(公告)日：2005-12-08
申请号：US10859570
申请日：2004-06-03
申请人： Sheng-Hung Wu
发明人： Sheng-Hung Wu
IPC分类号： G11B20/18 , H03M13/00 , H04L1/00
CPC分类号： H04L1/0057
摘要： A method for detecting errors in data that comprises encoding the data into a codeword using a generation polynomial, transmitting the codeword over a channel, receiving the transmitted codeword, generating syndromes for the received codeword using the generation polynomial, the syndromes comprising a plurality of syndrome symbols, providing a plurality of syndrome windows, each of the syndrome windows comprising a plurality of sub-windows and corresponding to a set of syndrome symbols, determining a number of non-zero terms of sub-windows of each of the syndrome windows, and selecting at least one syndrome window having a least number of non-zero terms of sub-windows.
摘要翻译：一种用于检测数据中的错误的方法，包括使用生成多项式将所述数据编码为码字，通过信道发送所述码字，接收所发送的码字，使用所述生成多项式生成所接收的码字的综合征，所述综合征包括多个综合征符号，提供多个综合征窗口，每个综合征窗口包括多个子窗口并对应于一组综合征符号，确定每个综合征窗口的子窗口的非零项数，以及选择具有最少数目的非零项子级窗口的至少一个综合征窗口。

6. 发明申请

US20050073920A1 Devices and methods to improve tracking error signals for optical storage systems 失效
标题翻译：改进光存储系统跟踪误差信号的装置和方法
公开(公告)号：US20050073920A1
公开(公告)日：2005-04-07
申请号：US10676002
申请日：2003-10-02
申请人： Sheng-Hung Wu
发明人： Sheng-Hung Wu
IPC分类号： G11B7/09 , G11B7/095 , G11B21/10
CPC分类号： G11B7/0906 , G11B7/0903 , G11B7/0912
摘要： A circuit for generating a compensation signal (TC) to compensate a tracking error (TE) swing in a servo control system, the TC signal being pre-defined in accordance with an algorithm for generating a TE signal, the circuit comprising a set of peak detection devices corresponding to a set of photo-detector elements formed in a photo-detector, each of the peak detection devices detecting an amplitude of an optical detection signal derived from a corresponding photo-detector element, a set of amplifiers of a same gain corresponding to the set of peak detection devices, the gain being selectable between an inverting and a non-inverting terminals, a set of gain selection signals corresponding to the set of amplifiers to select one of the inverting and non-inverting terminals in accordance with the pre-defined TC signal, and an adder for adding the amplitudes that are gain selected.
摘要翻译：一种用于产生补偿信号（TC）以补偿伺服控制系统中的跟踪误差（TE）摆动的电路，所述TC信号根据用于产生TE信号的算法被预定义，所述电路包括一组峰值检测装置对应于形成在光检测器中的一组光检测器元件，每个峰值检测装置检测从相应的光检测器元件导出的光检测信号的幅度，相应增益对的一组放大器对应对于峰值检测装置的集合，增益可在反相和非反相端子之间选择，一组对应于放大器的增益选择信号，以根据预先选择反相和非反相端子之一来选择定义的TC信号，以及用于将所选择的增益的幅度相加的加法器。

7. 发明授权

US08594243B2 Device and method of data recovery 失效
标题翻译：数据恢复的设备和方法
公开(公告)号：US08594243B2
公开(公告)日：2013-11-26
申请号：US12605386
申请日：2009-10-26
申请人： Sheng-Hung Wu
发明人： Sheng-Hung Wu
IPC分类号： H04L27/14 , H04L27/22
CPC分类号： H04L7/033 , G11B20/10009 , G11B20/10037 , G11B20/10046 , G11B20/1012 , G11B20/10222 , G11B20/1024 , G11B20/10444 , G11B2220/2537 , H04L7/007
摘要： A data recovery device and a data recovery method are provided. The data recovery device includes an equalizer, a slicer, a phase lock loop (PLL) circuit, a detection circuit, and a compensation circuit. The equalizer adjusts a radio frequency (RF) signal according to a compensation signal and outputs an equalized RF signal sliced by the slicer according to a slicing level to output an AC_RF signal with segments. The PLL circuit outputs a clock according to phases of the AC_RF signal. The detection circuit calculates and outputs time intervals in the segments according to the clock and detects and outputs sampling heights in the segments. The compensation circuit selects at least two of the sampling heights, calculates a ratio of the selected sampling heights according to the outputs of the detection circuit, and outputs the compensation signal according to a result of comparison between the ratio and a corresponding reference.
摘要翻译：提供了数据恢复装置和数据恢复方法。数据恢复装置包括均衡器，限幅器，锁相环（PLL）电路，检测电路和补偿电路。均衡器根据补偿信号调整射频（RF）信号，并根据限幅电平输出由限幅器分片的均衡的RF信号，以输出带有段的AC_RF信号。 PLL电路根据AC_RF信号的相位输出时钟。检测电路根据时钟计算并输出片段中的时间间隔，并检测并输出片段中的采样高度。补偿电路选择采样高度中的至少两个，根据检测电路的输出计算所选择的采样高度的比例，并根据比率与相应参考值的比较结果输出补偿信号。

8. 发明授权

US07287209B2 System and method for detecting codeword errors in error correction code or cyclic redundancy check code 失效
标题翻译：用于检测纠错码或循环冗余校验码中的码字错误的系统和方法
公开(公告)号：US07287209B2
公开(公告)日：2007-10-23
申请号：US10859570
申请日：2004-06-03
申请人： Sheng-Hung Wu
发明人： Sheng-Hung Wu
IPC分类号： H03M13/00
CPC分类号： H04L1/0057
摘要： A method for detecting errors in data that comprises encoding the data into a codeword using a generation polynomial, transmitting the codeword over a channel, receiving the transmitted codeword, generating syndromes for the received codeword using the generation polynomial, the syndromes comprising a plurality of syndrome symbols, providing a plurality of syndrome windows, each of the syndrome windows comprising a plurality of sub-windows and corresponding to a set of syndrome symbols, determining a number of non-zero terms of sub-windows of each of the syndrome windows, and selecting at least one syndrome window having a least number of non-zero terms of sub-windows.
摘要翻译：一种用于检测数据中的错误的方法，包括使用生成多项式将所述数据编码为码字，通过信道发送所述码字，接收所发送的码字，使用所述生成多项式生成所接收的码字的综合征，所述综合征包括多个综合征符号，提供多个综合征窗口，每个综合征窗口包括多个子窗口并对应于一组综合征符号，确定每个综合征窗口的子窗口的非零项数，以及选择具有最少数目的非零项子级窗口的至少一个综合征窗口。

9. 发明申请

US20070053097A1 METHOD AND CIRCUIT FOR COMPENSATING SLOW-VARYING RUNOUT OF DISK STORAGE SYSTEM 有权
标题翻译：用于补偿磁盘存储系统缓慢运行的方法和电路
公开(公告)号：US20070053097A1
公开(公告)日：2007-03-08
申请号：US11164136
申请日：2005-11-11
申请人： Sheng-Hung Wu
发明人： Sheng-Hung Wu
IPC分类号： G11B5/596
CPC分类号： G11B7/0953 , G11B5/59627 , G11B7/0956
摘要： A method and a circuit for compensating a slow-varying runout of a disk storage system are provided. First, generate a basic runout compensation signal (BRC signal) and according to a position signal extracted from the pickup head output generate a runout error signal (RE signal). Afterwards, when corresponding to a predetermined phase of the BRC signal, the RE signal is compared with a first predetermined error tolerance range (first PETR) and according to the comparison result it is decided whether the BRC phase needs to be adjusted; or/and when corresponding to a predetermined position of the BRC signal, the RE signal is compared with a second predetermined error tolerance range (second PETR) and according to the comparison result it is decided whether the BRC amplitude needs to be adjusted. Finally, a runout compensation signal obtained by adjusting the BRC signal is used for adjusting the pickup head position.
摘要翻译：提供了用于补偿磁盘存储系统的慢变化跳动的方法和电路。首先，生成基本的跳动补偿信号（BRC信号），并且根据从拾取头输出中提取的位置信号产生跳动误差信号（RE信号）。然后，当对应于BRC信号的预定相位时，将RE信号与第一预定误差容限范围（第一PETR）进行比较，并根据比较结果确定是否需要调整BRC相位; 或/或当对应于BRC信号的预定位置时，将RE信号与第二预定误差容差范围（第二PETR）进行比较，并且根据比较结果确定是否需要调整BRC振幅。最后，通过调整BRC信号获得的跳动补偿信号用于调整拾取头位置。

10. 发明授权

US07142487B2 Devices and methods to improve tracking error signals for optic storage systems 失效
标题翻译：用于改善光学存储系统的跟踪误差信号的装置和方法
公开(公告)号：US07142487B2
公开(公告)日：2006-11-28
申请号：US10676002
申请日：2003-10-02
申请人： Sheng-Hung Wu
发明人： Sheng-Hung Wu
IPC分类号： G11B7/00
CPC分类号： G11B7/0906 , G11B7/0903 , G11B7/0912
摘要： A circuit for generating a compensation signal (TC) to compensate a tracking error (TE) swing in a servo control system, the TC signal being pre-defined in accordance with an algorithm for generating a TE signal, the circuit comprising a set of peak detection devices corresponding to a set of photo-detector elements formed in a photo-detector, each of the peak detection devices detecting an amplitude of an optical detection signal derived from a corresponding photo-detector element, a set of amplifiers of a same gain corresponding to the set of peak detection devices, the gain being selectable between an inverting and a non-inverting terminals, a set of gain selection signals corresponding to the set of amplifiers to select one of the inverting and non-inverting terminals in accordance with the pre-defined TC signal, and an adder for adding the amplitudes that are gain selected.
摘要翻译：一种用于产生补偿信号（TC）以补偿伺服控制系统中的跟踪误差（TE）摆动的电路，所述TC信号根据用于产生TE信号的算法被预定义，所述电路包括一组峰值检测装置对应于形成在光检测器中的一组光检测器元件，每个峰值检测装置检测从相应的光检测器元件导出的光检测信号的幅度，相应增益对的一组放大器对应对于峰值检测装置的集合，增益可在反相和非反相端子之间选择，一组对应于放大器的增益选择信号，以根据预先选择反相和非反相端子之一来选择定义的TC信号，以及用于将所选择的增益的幅度相加的加法器。

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