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11. 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。

12. 发明授权

US07280304B2 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的慢变化跳动的方法和电路
公开(公告)号：US07280304B2
公开(公告)日：2007-10-09
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： G11B21/02
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。

13. 发明申请

US20070211585A1 System and method of adjusting channel properties for optical storage systems 审中-公开
标题翻译：调整光存储系统通道特性的系统和方法
公开(公告)号：US20070211585A1
公开(公告)日：2007-09-13
申请号：US11446387
申请日：2006-06-05
申请人： Sheng-hung Wu
发明人： Sheng-hung Wu
IPC分类号： G11B7/00
CPC分类号： G11B7/0945
摘要： A method of adjusting channel properties of an optical storage system is disclosed to include the steps: Step 1) give a modify step, a trial step and a threshold, Step 2) give an initial point, Step 3) add an initial focus point to the trial step and measure the sum so as to obtain a first jitter value, Step 4) deduct the trial step from the initial focus point and measure the difference so as to obtain a second jitter value, Step 5) deduct the second jitter value from the first jitter value and judge if the difference is greater than the threshold or not, Step 6) deduct the modify step from the initial focus point and then return to step 3) when the difference obtained from step 5) is greater than the threshold, Step 7) deduct the first jitter value from the second jitter value and judge if the difference is greater than the threshold or not in case the difference obtained from step 5) is smaller than the threshold, Step 8) add the initial focus point to the modify step and then return to step 3) when the difference obtained from step 7) is greater than the threshold, and Step 9) keep the initial focus point and return to step 3) to continue search if the difference obtained from step 7) is smaller than the threshold.
摘要翻译：公开了一种调整光学存储系统的通道特性的方法，包括以下步骤：步骤1）给出修改步骤，试验步骤和阈值步骤2）给出初始点，步骤3）将初始焦点添加到步骤4）从初始聚焦点扣除试验步长并测量差值以获得第二抖动值，步骤5）从第一抖动值中扣除第二抖动值，第一抖动值并判断差值是否大于阈值，步骤6）从初始聚焦点减去修改步骤，然后当从步骤5）获得的差值大于阈值时返回步骤3）步骤7）从第二抖动值中扣除第一抖动值，并且在从步骤5）获得的差小于阈值的情况下判断差异是否大于阈值，步骤8）将初始焦点添加到修改步骤然后重新保存当从步骤7）获得的差值大于阈值时，步骤9）保持初始聚焦点并返回步骤3）继续搜索如果从步骤7）得到的差值小于阈值。

14. 发明申请

US20110191505A1 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：US20110191505A1
公开(公告)日：2011-08-04
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
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。

15. 发明申请

US20100296378A1 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：US20100296378A1
公开(公告)日：2010-11-25
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： G11B27/36
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。

16. 发明授权

US07046594B2 Apparatus and method for optical storage system focus control 有权
公开(公告)号：US07046594B2
公开(公告)日：2006-05-16
申请号：US10159399
申请日：2002-05-30
申请人： Sheng-Hung Wu
发明人： Sheng-Hung Wu
IPC分类号： G11B7/00
CPC分类号： G11B7/131 , G11B7/0943 , G11B7/0956
摘要： A method of adjusting the focus control for an optical storage system where light is reflected from a surface towards a lens. The method includes receiving a reflected light in the form of a spot, dividing the spot into a plurality of areas, generating an adjustment signal based on the relationship between the plurality of areas to determine the variation between the center point of the spot and a desired center point for the spot, combining the adjustment signal with an existing focus error signal to obtain a modified focus error signal, and utilizing the modified focus error signal to control the position of the sensor.

17. 发明授权

US07006022B1 System and method for enhancing data correction capability using error information obtained from demodulation procedures 失效
标题翻译：使用从解调程序获得的错误信息来增强数据校正能力的系统和方法
公开(公告)号：US07006022B1
公开(公告)日：2006-02-28
申请号：US10961214
申请日：2004-10-12
申请人： Sheng-Hung Wu
发明人： Sheng-Hung Wu
IPC分类号： H03M1/06 , H03M3/00
CPC分类号： G11B20/18 , G11B20/10009 , H03M13/6325
摘要： A signal processing system that comprises a sampling device for converting a continuous signal into a discrete signal, a quantizing device for converting the discrete signal into a first bit stream, each bit in the bit stream having a first value, a detector for determining whether at least one bit in the first bit stream includes a second value different from the first value of the at least one bit, and a demultiplexer for converting a section of the first bit stream into a first modulation code, and converting a section of a second bit stream into a second modulation code, the second bit stream being formed by replacing the first value of the at least one bit in the first bit stream with the second value.
摘要翻译：一种信号处理系统，包括用于将连续信号转换为离散信号的采样装置，用于将离散信号转换为第一比特流的量化装置，比特流中的每个比特具有第一值，用于确定是否在第一比特流中的至少一个比特包括不同于至少一个比特的第一值的第二值，以及用于将第一比特流的一部分转换成第一调制码并将第二比特的一部分转换流转换成第二调制码，通过用第二值替换第一比特流中的至少一个比特的第一值来形成第二比特流。

18. 发明授权

US06944641B2 Method for determining the square root of a long-bit number using a short-bit processor 失效
标题翻译：使用短位处理器确定长位数的平方根的方法
公开(公告)号：US06944641B2
公开(公告)日：2005-09-13
申请号：US09981729
申请日：2001-10-19
申请人： Sheng-Hung Wu
发明人： Sheng-Hung Wu
IPC分类号： G06F7/38 , G06F7/552
CPC分类号： G06F7/5525
摘要： In a method for determining the square root of a long-bit number using a short-bit processor, the long-bit number is assumed to be c×22K+d, where c, d
摘要翻译：在使用短位处理器确定长位数的平方根的方法中，长位数假定为cx2 <2K + d，其中c，d <2 ^{2k ，并且其解被假设为（ax2 + K + b）<2>。 'a'通过使用二分法来获得平方根的底值“c”来确定。为了获得“b”的值，导出了连续取代方程：b [n] x2 2k > +（db ^{2 ）/ 2 <2>（k + 1）。给出“b”的初始值，递归地执行连续取代方程数次，直到方程收敛。}}

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