公开(公告)号：US08077569B2

公开(公告)日：2011-12-13

申请号：US12364496

申请日：2009-02-02

Applicant: Yu-Hsuan Lin ,  Chih-Ching Chen

Inventor： Yu-Hsuan Lin ,  Chih-Ching Chen

IPC: G11B17/00

CPC classification number: G11B7/08505

Abstract: A device for controlling access to an optical disc includes a control word calculator and a numerically controlled oscillator (NCO). The control word calculator is arranged to calculate a control word corresponding to a radius where the optical disc is accessed. In addition, the NCO is arranged to generate an output frequency according to the control word, wherein the output frequency is utilized for accessing the optical disc. An associated method for controlling access to an optical disc includes: calculating a control word corresponding to a radius where the optical disc is accessed; and generating an output frequency according to the control word, wherein the output frequency is utilized for accessing the optical disc.

Abstract translation: 用于控制对光盘的访问的装置包括控制字计算器和数控振荡器（NCO）。 控制字计算器被配置为计算对应于光盘被访问的半径的控制字。 此外，NCO被配置为根据控制字产生输出频率，其中输出频率用于访问光盘。 用于控制对光盘的访问的相关方法包括：计算对应于访问光盘的半径的控制字; 以及根据所述控制字产生输出频率，其中所述输出频率用于访问所述光盘。

公开(公告)号：US07796480B2

公开(公告)日：2010-09-14

申请号：US11757426

申请日：2007-06-04

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

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

IPC: G11B7/00

CPC classification number: G11B7/094 ,  G11B7/0941 ,  G11B7/0956 ,  G11B20/10009 ,  G11B2020/1287

Abstract: An apparatus for light spot servo signal detection for reading an optical recording medium having a plurality of non-writable areas between writable data areas containing address information. An optical pickup provides a light spot to the non-writable areas of the optical recording medium with a predetermined state according to a control signal, and detects optical reflecting signals from the optical recording medium to generate a detection signal. A signal adjusting module offsets signal levels of the detection signal to an operating range to generate an offset shifted detection signal. An analog to digital converter digitizes the offset shifted detection signal to generate a digital signal. A detection circuit detects the servo detection signal according to the digital signal.

Abstract translation: 一种光点伺服信号检测装置，用于读取在包含地址信息的可写数据区之间具有多个不可写区域的光记录介质。 光拾取器根据控制信号以预定状态向光记录介质的不可写区域提供光点，并且检测来自光记录介质的光反射信号以产生检测信号。 信号调整模块将检测信号的信号电平偏移到工作范围以产生偏移移位的检测信号。 模数转换器对偏移检测信号进行数字化以产生数字信号。 检测电路根据数字信号检测伺服检测信号。

公开(公告)号：US07567054B2

公开(公告)日：2009-07-28

申请号：US11307962

申请日：2006-03-01

Applicant: Yu-Hsuan Lin ,  Jin-Bin Yang ,  Chih-Ching Chen ,  Gwo-Huei Wu

Inventor： Yu-Hsuan Lin ,  Jin-Bin Yang ,  Chih-Ching Chen ,  Gwo-Huei Wu

IPC: H02P27/04

CPC classification number: G11B19/24 ,  H02P6/08

Abstract: A control circuit and a control method of controlling a rotation frequency of a spindle in an optical disc drive, the control circuit comprising: a spindle controller, electrically coupled to the spindle, for driving the spindle to rotate an optical disc according to a rotation control signal; a detector, electrically coupled to the spindle controller, for detecting the rotation frequency and for generating detecting signals; a frequency-adjusting module, electrically coupled to the detector, for adjusting at least one of the detecting signals to reduce a rotation frequency difference between detecting signals; a signal selector, electrically coupled to the frequency-adjusting module, for receiving output signals generated from the frequency-adjusting module and then outputting the rotation control signal.

Abstract translation: 一种控制电路和控制光盘驱动器中主轴的旋转频率的控制方法，所述控制电路包括：主轴控制器，其电耦合到所述主轴，用于驱动所述主轴以根据旋转控制旋转光盘 信号; 电耦合到主轴控制器的检测器，用于检测旋转频率并产生检测信号; 频率调节模块，电耦合到所述检测器，用于调整所述检测信号中的至少一个以减小检测信号之间的旋转频率差; 电耦合到频率调节模块的信号选择器，用于接收从频率调节模块产生的输出信号，然后输出旋转控制信号。

公开(公告)号：US20070280062A1

公开(公告)日：2007-12-06

申请号：US11758102

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: G11B20/10009 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/10046

Abstract: An apparatus and method of generating a zero crossing signal for an optical disc drive to reduce width deviation due to sampling effect, thereby improving servo control and detection. An embodiment of the apparatus comprises a reshaping device receiving a first digital servo signal of the optical disc drive to upsample the first digital servo signal data, thereby generating a second digital servo signal with higher resolution than the first digital servo signal; and a servo control-and-detection device receiving and slicing the second digital servo signal to generate a servo zero crossing signal.

Abstract translation: 一种用于产生用于光盘驱动器的过零信号以减少由于采样效应引起的宽度偏差的装置和方法，从而改善伺服控制和检测。 该装置的一个实施例包括重新成形装置，接收光盘驱动器的第一数字伺服信号以对第一数字伺服信号数据进行上采样，从而产生具有比第一数字伺服信号更高分辨率的第二数字伺服信号; 以及伺服控制和检测装置，接收和分割第二数字伺服信号以产生伺服过零信号。

公开(公告)号：US20070280061A1

公开(公告)日：2007-12-06

申请号：US11758019

申请日：2007-06-05

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

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

IPC: G11B7/00

CPC classification number: G11B20/10027 ,  G11B20/10046 ,  G11B20/10203 ,  G11B20/10222 ,  G11B2220/2575

Abstract: An apparatus of processing an input signal generated according to accessing of an optical storage medium is disclosed. The apparatus has a detecting circuit and a decision logic. The detecting circuit is coupled to the input signal for detecting a target peak value and a target bottom value of the input signal within a time period, wherein the time period is not less than a period of a reference signal generated according to accessing of the optical storage medium. The decision logic is coupled to the detecting circuit for determining a reference level according to the target peak value and the target bottom value.

Abstract translation: 公开了一种处理根据光存储介质的存取产生的输入信号的装置。 该装置具有检测电路和判定逻辑。 检测电路耦合到输入信号，用于在一段时间内检测输入信号的目标峰值和目标底值，其中时间周期不小于根据光学访问产生的参考信号的周期 存储介质。 决定逻辑耦合到检测电路，用于根据目标峰值和目标底值确定参考电平。

公开(公告)号：US20070205737A1

公开(公告)日：2007-09-06

申请号：US11307962

申请日：2006-03-01

Applicant: Yu-Hsuan Lin ,  Jin-Bin Yang ,  Chih-Ching Chen ,  Gwo-Huei Wu

Inventor： Yu-Hsuan Lin ,  Jin-Bin Yang ,  Chih-Ching Chen ,  Gwo-Huei Wu

IPC: G05B19/10

CPC classification number: G11B19/24 ,  H02P6/08

Abstract: A control circuit and a control method of controlling a rotation frequency of a spindle in an optical disc drive, the control circuit comprising: a spindle controller, electrically coupled to the spindle, for driving the spindle to rotate an optical disc according to a rotation control signal; a detector, electrically coupled to the spindle controller, for detecting the rotation frequency and for generating detecting signals; a frequency-adjusting module, electrically coupled to the detector, for adjusting at least one of the detecting signals to reduce a rotation frequency difference between detecting signals; a signal selector, electrically coupled to the frequency-adjusting module, for receiving output signals generated from the frequency-adjusting module and then outputting the rotation control signal.

Abstract translation: 一种控制电路和控制光盘驱动器中主轴的旋转频率的控制方法，所述控制电路包括：主轴控制器，其电耦合到所述主轴，用于驱动所述主轴以根据旋转控制旋转光盘 信号; 电耦合到主轴控制器的检测器，用于检测旋转频率并产生检测信号; 频率调节模块，电耦合到所述检测器，用于调整所述检测信号中的至少一个以减小检测信号之间的旋转频率差; 电耦合到频率调节模块的信号选择器，用于接收从频率调节模块产生的输出信号，然后输出旋转控制信号。

公开(公告)号：US08300670B2

公开(公告)日：2012-10-30

申请号：US13166817

申请日：2011-06-23

Applicant: Hsiao-Yuan Chi ,  Chih-Ching Chen ,  Chia-Wei Liao

Inventor： Hsiao-Yuan Chi ,  Chih-Ching Chen ,  Chia-Wei Liao

IPC: H01S3/00

CPC classification number: G11B7/126

Abstract: A method for deriving precise control over laser power of an optical pickup unit (OPU) includes: providing an analog-to-digital converter (ADC) within an automatic power calibration (APC) circuit to derive a path gain and/or a path offset from the APC circuit; and selectively performing compensation according to the gain and/or the path offset, in order to maintain precision of a relationship between the laser power and a target command utilized for controlling the laser power. An associated APC circuit comprising an ADC and at least one compensation module is further provided. The ADC is utilized for deriving a path gain and/or a path offset from the APC circuit. The compensation module is utilized for selectively performing compensation according to the path gain and/or the path offset, in order to control the laser power by a target command.

Abstract translation: 用于导出对光学拾取单元（OPU）的激光功率的精确控制的方法包括：在自动功率校准（APC）电路内提供模数转换器（ADC）以导出路径增益和/或路径偏移 从APC电路; 并且根据增益和/或路径偏移选择性地执行补偿，以便保持激光功率与用于控制激光功率的目标指令之间的关系的精度。 还提供了包括ADC和至少一个补偿模块的相关APC电路。 ADC用于从APC电路导出路径增益和/或路径偏移。 补偿模块用于根据路径增益和/或路径偏移选择性地执行补偿，以便通过目标命令控制激光功率。

公开(公告)号：US07911891B2

公开(公告)日：2011-03-22

申请号：US11758082

申请日：2007-06-05

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

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

IPC: G11B7/00

CPC classification number: G11B7/0941 ,  G11B7/0903

Abstract: The invention provides an apparatus for controlling servo signal gains of an optical disc drive. The apparatus adjusts the gains of a plurality of servo signals controlling a servo system of the optical disc drive according to a closed-loop mode or a state-reloading mode whenever the optical disk drive encounters an operating state transition. In closed-loop mode, at least one AGC loop of the apparatus compensates the gains of the servo signals with a selectable bandwidth during a specific period after the operating state transition to accelerate the convergence of the servo signals. In state-reloading mode, at least one AGC loop of the apparatus reloads the previously saved convergence values or pre-determined values as the initial values according to the current operating state immediately after the operating state transition to accelerate the convergence of the servo signals.

Abstract translation: 本发明提供一种用于控制光盘驱动器的伺服信号增益的装置。 只要光盘驱动器遇到操作状态转换，该装置根据闭环模式或状态重新加载模式来调整控制光盘驱动器的伺服系统的多个伺服信号的增益。 在闭环模式中，该装置的至少一个AGC环路在操作状态转换之后的特定周期期间以可选择的带宽补偿伺服信号的增益，以加速伺服信号的收敛。 在状态重新加载模式中，装置的至少一个AGC回路根据当前运行状态在运行状态转换之后重新加载先前存储的收敛值或预定值作为初始值，以加速伺服信号的收敛。

公开(公告)号：US20100072335A1

公开(公告)日：2010-03-25

申请号：US12426157

申请日：2009-04-17

Applicant: Keng Ping Wang ,  Chin Chang Meng ,  Chih-Ching Chen

Inventor： Keng Ping Wang ,  Chin Chang Meng ,  Chih-Ching Chen

IPC: F16B47/00

CPC classification number: F16B47/00

Abstract: A fixing device is provided. The fixing device is fixed to a surface, comprising a sucker, a rack, a gear, a transforming unit and a limiting unit. The rack is connected to the sucker. The gear is engaged to the rack. The transforming unit is connected to the gear. The transforming unit rotates the gear to move the rack between a first position and a second position. The rack pushes the sucker to apply a suction force to the surface when the rack is in the first position, and the suction force of the sucker is released when the rack is in the second position. The limiting unit is connected to the rack to restrict the rack.

Abstract translation: 提供定影装置。 固定装置固定在表面上，该表面包括吸盘，齿条，齿轮，转换单元和限制单元。 机架连接到吸盘。 齿轮与机架接合。 变压单元连接到齿轮。 变换单元旋转齿轮以在第一位置和第二位置之间移动齿条。 当机架处于第一位置时，机架推动吸盘向表面施加吸力，并且当机架处于第二位置时吸盘的吸力被释放。 限位单元连接到机架以限制机架。

公开(公告)号：US20090073827A1

公开(公告)日：2009-03-19

申请号：US12273601

申请日：2008-11-19

Applicant: Bing-Yu Hsieh ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Shu-Hung Chou ,  Chih-Ching Chen ,  Chia-Wei Liao

Inventor： Bing-Yu Hsieh ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Shu-Hung Chou ,  Chih-Ching Chen ,  Chia-Wei Liao

IPC: G11B7/125

CPC classification number: H03M1/1225 ,  G11B7/0903 ,  G11B7/0912 ,  G11B7/0941 ,  G11B7/1263 ,  H03M1/129

Abstract: An automatic power control system, a down sampling circuit and a down sampling method. The automatic power control system is incorporated in an optical disc drive comprising a laser diode for receiving a control signal to generate a laser beam; and a photodetector for detecting the laser beam to generate an analog input signal. The automatic power control system comprises an analog-to-digital converter, a down sampling circuit, a comparator, and a digital-to-analog converter. The analog-to-digital converter converts the analog input signal to digital data. The down sampling circuit, coupled to the analog-to-digital converter, comprises a down sampler, a counter, and a controller. The down sampler receives a predetermined amount of digital data to generate representation data. The counter, coupled to the down sampler, calculates the amount of digital data, and resets the down sampler when the amount equals or exceeds the predetermined count. The controller, coupled to the counter, disables the counter when the digital data is invalid. The comparator, coupled to the down sampling circuit, compares the representation data with predetermined target data to generate error data. The digital-to-analog converter, coupled to the comparator, converts the error data to analog to generate the control signal.

Abstract translation: 自动功率控制系统，下采样电路和下采样方法。 自动功率控制系统结合在包括用于接收控制信号以产生激光束的激光二极管的光盘驱动器中; 以及用于检测激光束以产生模拟输入信号的光电检测器。 自动功率控制系统包括模数转换器，下采样电路，比较器和数 - 模转换器。 模数转换器将模拟输入信号转换为数字数据。 耦合到模数转换器的下采样电路包括下采样器，计数器和控制器。 下采样器接收预定量的数字数据以产生表示数据。 耦合到下采样器的计数器计算数字数据量，并且当量等于或超过预定计数时重置下采样器。 耦合到计数器的控制器在数字数据无效时禁用计数器。 耦合到下采样电路的比较器将表示数据与预定目标数据进行比较以产生误差数据。 耦合到比较器的数模转换器将误差数据转换成模拟以产生控制信号。