公开(公告)号：US20070290756A1

公开(公告)日：2007-12-20

申请号：US11757421

申请日：2007-06-04

Applicant: Yu-Hsuan Lin ,  Yuh Cheng

Inventor： Yu-Hsuan Lin ,  Yuh Cheng

IPC: H03G3/00

CPC classification number: H03G3/3036 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/10046 ,  G11B20/10314 ,  G11B27/22

Abstract: An electrical device and a loop control method are provided. A data signal is obtained from a front end. A variable gain amplifier amplifies the data signal based on a gain value. An analog to digital converter samples the amplified data signal output therefrom to generate a digital data signal. A peak bottom detector detects a peak level and a bottom level of the digital data signal. A threshold controller compares the peak and bottom levels with a threshold value, and generates a first control signal accordingly. An auto gain controller updates the gain value based on the peak and bottom levels with a first step size. The first step size is determined by the first control signal.

Abstract translation: 提供电气装置和环路控制方法。 从前端获得数据信号。 可变增益放大器基于增益值放大数据信号。 模数转换器对从其输出的放大数据信号进行采样以产生数字数据信号。 峰值检测器检测数字数据信号的峰值电平和底部电平。 阈值控制器将峰值和底部电平与阈值进行比较，并相应地产生第一控制信号。 自动增益控制器根据具有第一步长的峰值和最低电平来更新增益值。 第一步尺寸由第一控制信号确定。

公开(公告)号：US08270266B2

公开(公告)日：2012-09-18

申请号：US12357409

申请日：2009-01-22

Applicant: Tzu-Chieh Lin ,  Yuh Cheng ,  Chih-Ching Chen ,  Tysh-Bin Liu ,  Yu-Hsuan Lin

Inventor： Tzu-Chieh Lin ,  Yuh Cheng ,  Chih-Ching Chen ,  Tysh-Bin Liu ,  Yu-Hsuan Lin

IPC: G11B7/00

CPC classification number: G11B7/0053 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10046 ,  G11B2020/1239 ,  G11B2020/1268 ,  G11B2020/1274 ,  G11B2220/2537

Abstract: A device for detecting wobbles on an optical disc is provided, where the device is utilized for generating a wobble signal according to a plurality of detection signals. The device includes an analog signal processing circuit, a pair of analog-to-digital converters (ADCs), and a digital signal processing circuit. The analog signal processing circuit is arranged to perform analog signal processing on the detection signals to generate a plurality of output signals. In addition, the pair of ADCs are arranged to digitalize the output signals to generate a plurality of digital values. Additionally, the digital signal processing circuit is arranged to perform digital signal processing on the digital values and generate an arithmetic output, where the arithmetic output is utilized for generating the wobble signal or utilized as the wobble signal. An associated method for detecting wobbles on an optical disc is further provided.

Abstract translation: 提供一种用于检测光盘上的摆动的装置，其中该装置用于根据多个检测信号产生摆动信号。 该器件包括模拟信号处理电路，一对模数转换器（ADC）和数字信号处理电路。 模拟信号处理电路被配置为对检测信号执行模拟信号处理以产生多个输出信号。 此外，这对ADC被布置成将输出信号数字化以产生多个数字值。 此外，数字信号处理电路被配置为对数字值执行数字信号处理并产生运算输出，其中运算输出用于产生摆动信号或用作摆动信号。 还提供了一种用于检测光盘上的摆动的相关方法。

公开(公告)号：US07724090B2

公开(公告)日：2010-05-25

申请号：US11757421

申请日：2007-06-04

Applicant: Yu-Hsuan Lin ,  Yuh Cheng

Inventor： Yu-Hsuan Lin ,  Yuh Cheng

IPC: H03G3/30

CPC classification number: H03G3/3036 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/10046 ,  G11B20/10314 ,  G11B27/22

Abstract: An electrical device and a loop control method are provided. A data signal is obtained from a front end. A variable gain amplifier amplifies the data signal based on a gain value. An analog to digital converter samples the amplified data signal output therefrom to generate a digital data signal. A peak bottom detector detects a peak level and a bottom level of the digital data signal. A threshold controller compares the peak and bottom levels with a threshold value, and generates a first control signal accordingly. An auto gain controller updates the gain value based on the peak and bottom levels with a first step size. The first step size is determined by the first control signal.

Abstract translation: 提供电气装置和环路控制方法。 从前端获得数据信号。 可变增益放大器基于增益值放大数据信号。 模数转换器对从其输出的放大数据信号进行采样以产生数字数据信号。 峰值检测器检测数字数据信号的峰值电平和底部电平。 阈值控制器将峰值和底部电平与阈值进行比较，并相应地产生第一控制信号。 自动增益控制器根据具有第一步长的峰值和最低电平来更新增益值。 第一步尺寸由第一控制信号确定。

公开(公告)号：US07684291B2

公开(公告)日：2010-03-23

申请号：US11559416

申请日：2006-11-14

Applicant: Yu-Hsuan Lin ,  Yuh Cheng ,  Chih-Ching Chen

Inventor： Yu-Hsuan Lin ,  Yuh Cheng ,  Chih-Ching Chen

IPC: G11B7/00

CPC classification number: G11B20/10009 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/10046 ,  G11B27/22 ,  G11B2220/2537 ,  H03G3/3084

Abstract: An optical storage device and a blank detection method thereof are disclosed. An RF signal is obtained from an optical disc. A various gain amplifier amplifies the RF signal based on a control signal. An analog to digital converter samples the amplified RF signal to obtain a data signal. An auto gain controller updates the control signal based on amplitude of the data signal. A blank detector detects blankness of the data signal based on a threshold. The threshold is provided by a threshold generator based on the control signal. If the amplitude of the data signal does not exceed the threshold, the blank detector sends a hold signal to suspend update of the control signal.

Abstract translation: 公开了一种光存储装置及其空白检测方法。 从光盘获得RF信号。 各种增益放大器基于控制信号来放大RF信号。 模数转换器对放大的RF信号进行采样以获得数据信号。 自动增益控制器根据数据信号的幅度更新控制信号。 空白检测器基于阈值检测数据信号的空白。 阈值由基于控制信号的阈值发生器提供。 如果数据信号的幅度不超过阈值，则空白检测器发送保持信号以暂停更新控制信号。

公开(公告)号：US20070291622A1

公开(公告)日：2007-12-20

申请号：US11758094

申请日：2007-06-05

Applicant: Kuo-Jung Lan ,  Chih-Ching Chen ,  Chia-Wei Liao ,  Yuh Cheng ,  Ming-Jiou Yu ,  Yu-Hsuan Lin ,  Shu-Hung Chou

Inventor： Kuo-Jung Lan ,  Chih-Ching Chen ,  Chia-Wei Liao ,  Yuh Cheng ,  Ming-Jiou Yu ,  Yu-Hsuan Lin ,  Shu-Hung Chou

IPC: G11B7/00

CPC classification number: G11B7/0943 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/1263

Abstract: A high pass filtering device for an optical disc drive comprises a first low pass filter (LPF) of a first sampling rate, filtering a digital input signal; a down-sampler receiving a first filtered signal form the first LPF to down-sample the first filtered signal by an integer factor N; a second LPF of a second sampling rate, filtering a first down-sampled signal from the down-sampler, wherein the second LPF has a corner frequency corresponding to a desired frequency of the high pass filtering device, and the second sampling rate is equal to 1/N times the first sampling rate; an up-sampler receiving a second filtered signal from the second LPF to up-sample the second filtered signal by the factor N; and a subtractor subtracting an up-sampled signal output by the up-sampler from the digital input signal when the filter frequency is below a threshold frequency.

Abstract translation: 用于光盘驱动器的高通滤波装置包括第一采样率的第一低通滤波器（LPF），对数字输入信号进行滤波; 下采样器从第一LPF接收第一滤波信号，以对第一滤波信号进行下采样整数因子N; 第二采样率的第二LPF，滤波来自下采样器的第一下采样信号，其中第二LPF具有对应于高通滤波器件的期望频率的转角频率，第二采样率等于 1 / N次第一次采样率; 上采样器接收来自第二LPF的第二滤波信号，以将第二滤波信号向上采样因子N; 以及当滤波器频率低于阈值频率时，减法器从数字输入信号中减去上采样器输出的上采样信号。

公开(公告)号：US20070291613A1

公开(公告)日：2007-12-20

申请号：US11758017

申请日：2007-06-05

Applicant: Chia-Wei Liao ,  Chih-Ching Chen ,  Yuh Cheng ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Chun-Yu Lin ,  Shiue-Shin Liu ,  Shu-Hung Chou ,  Yu-Hsuan Lin

Inventor： Chia-Wei Liao ,  Chih-Ching Chen ,  Yuh Cheng ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Chun-Yu Lin ,  Shiue-Shin Liu ,  Shu-Hung Chou ,  Yu-Hsuan Lin

IPC: G11B7/00

CPC classification number: G11B20/10 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/0943 ,  G11B7/1263 ,  G11B20/10009 ,  G11B2220/2537

Abstract: A signal processing apparatus includes sample and hold units for holding a plurality of analog photo diode signals. A signal holding controller generates control signals to the sample and hold units for holding the analog photo diode signals. Analog adjusting modules adjust the held analog photo diode signals. A multiplexer selectively couples one input end of the multiplexer to the output end of the multiplexer for outputting the adjusted analog photo diode signals. An analog to digital converter converts the adjusted analog photo diode signals into digital photo diode signals.

Abstract translation: 信号处理装置包括用于保持多个模拟光电二极管信号的采样和保持单元。 信号保持控制器产生用于保持模拟光电二极管信号的采样和保持单元的控制信号。 模拟调整模块调节保持的模拟光电二极管信号。 复用器选择性地将多路复用器的输入端耦合到多路复用器的输出端，以输出经调整的模拟光电二极管信号。 模数转换器将调整后的模拟光电二极管信号转换为数字光电二极管信号。

公开(公告)号：US07697380B2

公开(公告)日：2010-04-13

申请号：US11755222

申请日：2007-05-30

Applicant: Yuh Cheng ,  Bing-Yu Hsieh

Inventor： Yuh Cheng ,  Bing-Yu Hsieh

IPC: G11B7/00

CPC classification number: G11B27/24 ,  G11B7/0053 ,  G11B19/125 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/10046 ,  G11B20/10222 ,  G11B20/1217 ,  G11B2020/1238 ,  G11B2020/1239 ,  G11B2020/1268 ,  G11B2020/1269 ,  G11B2020/1274 ,  G11B2020/1287 ,  G11B2220/2562 ,  G11B2220/2579

Abstract: An apparatus for detecting the wobble carrier frequency of an optical disk is disclosed. The apparatus comprises an offset canceller, a binary conversion module, an adjustable band pass filter, and a frequency detection module. The offset canceller cancels the direct current offset of a first wobble signal to obtain a second wobble signal. The binary conversion module converts the second wobble signal to a binary data stream. The adjustable band pass filter passes only an adjustable frequency range of the binary data stream to generate a filtered signal, wherein the center frequency of the adjustable frequency range is sequentially adjusted. The frequency detection module then determines maximum amplitude of the filtered signal, and determines the center frequency of the adjustable frequency range according to which the filtered signal with the maximum amplitude is generated, wherein the wobble carrier frequency is the center frequency corresponding to the maximum amplitude.

Abstract translation: 公开了一种用于检测光盘的摆动载波频率的装置。 该装置包括偏移消除器，二进制转换模块，可调带通滤波器和频率检测模块。 偏移消除器取消第一摆动信号的直流偏移以获得第二摆动信号。 二进制转换模块将第二摆动信号转换为二进制数据流。 可调带通滤波器仅通过二进制数据流的可调频率范围，以产生滤波信号，其中可调频率范围的中心频率被依次调整。 频率检测模块然后确定滤波信号的最大振幅，并确定可调频率范围的中心频率，根据该频率范围产生具有最大幅度的滤波信号，其中摆动载波频率是对应于最大振幅的中心频率 。

公开(公告)号：US07345963B2

公开(公告)日：2008-03-18

申请号：US11466109

申请日：2006-08-22

Applicant: Yuh Cheng

Inventor： Yuh Cheng

IPC: G11B7/00

CPC classification number: G11B7/0906 ,  G11B7/0943

Abstract: A method for deriving a tracking error signal based on a first analog detection signal and a second analog detection signal. The method includes summing the first analog detection signal and the second analog detection signal to generate an analog sum signal. An analog delay device is utilized to delay the analog sum signal to be a delay signal. The delay signal is digitalized into a digital delay signal. The first analog detection signal and the second analog detection signal are respectively transformed into a first digital detection signal and a second digital detect signal. The tracking error signal is then generated utilizing a comparing operation among the digital delay signal, the first digital detect signal, and the first digital detect signal.

Abstract translation: 一种用于基于第一模拟检测信号和第二模拟检测信号导出跟踪误差信号的方法。 该方法包括对第一模拟检测信号和第二模拟检测信号求和以产生模拟和信号。 使用模拟延迟装置将模拟和信号延迟为延迟信号。 延迟信号被数字化为数字延迟信号。 第一模拟检测信号和第二模拟检测信号分别变换为第一数字检测信号和第二数字检测信号。 然后利用数字延迟信号，第一数字检测信号和第一数字检测信号之间的比较操作产生跟踪误差信号。

公开(公告)号：US20080013431A1

公开(公告)日：2008-01-17

申请号：US11773432

申请日：2007-07-04

Applicant: CHIH-CHING YU ,  Pi-Hai Liu ,  Yuh Cheng

Inventor： CHIH-CHING YU ,  Pi-Hai Liu ,  Yuh Cheng

IPC: G11B7/0045

CPC classification number: G11B7/1267 ,  G11B7/00456 ,  G11B7/0062

Abstract: A method for tuning a write strategy parameter of an optical storage device, includes: writing a segment of data according to a plurality of write strategies; reading the data back and detecting a plurality of lengths, each length corresponding to a pit or a land on an optical storage medium accessed by the optical storage device; performing calculations according to the lengths and a plurality of data types to generate a plurality of calculation results, each of the data types corresponding to at least a specific target pit length or at least a specific target land length; and utilizing the calculation results to determine a proper write strategy.

Abstract translation: 一种用于调整光学存储设备的写入策略参数的方法，包括：根据多个写入策略写入数据段; 读取数据并检测多个长度，每个长度对应于由光学存储设备访问的光存储介质上的凹坑或平台; 根据长度和多个数据类型执行计算以产生多个计算结果，每个数据类型至少对应于特定目标凹坑长度或至少特定目标区域长度; 并利用计算结果确定适当的写入策略。

公开(公告)号：US08369199B2

公开(公告)日：2013-02-05

申请号：US11773432

申请日：2007-07-04

Applicant: Chih-Ching Yu ,  Pi-Hai Liu ,  Yuh Cheng

Inventor： Chih-Ching Yu ,  Pi-Hai Liu ,  Yuh Cheng

IPC: G11B7/0045

CPC classification number: G11B7/1267 ,  G11B7/00456 ,  G11B7/0062

Abstract: A method for tuning a write strategy parameter of an optical storage device, includes: writing a segment of data according to a plurality of write strategies; reading the data back and detecting a plurality of lengths, each length corresponding to a pit or a land on an optical storage medium accessed by the optical storage device; performing calculations according to the lengths and a plurality of data types to generate a plurality of calculation results, each of the data types corresponding to at least a specific target pit length or at least a specific target land length; and utilizing the calculation results to determine a proper write strategy.

Abstract translation: 一种用于调整光学存储设备的写入策略参数的方法，包括：根据多个写入策略写入数据段; 读取数据并检测多个长度，每个长度对应于由光学存储设备访问的光存储介质上的凹坑或平台; 根据长度和多个数据类型执行计算以产生多个计算结果，每个数据类型至少对应于特定目标凹坑长度或至少特定目标区域长度; 并利用计算结果确定适当的写入策略。