公开(公告)号：US20100074066A1

公开(公告)日：2010-03-25

申请号：US12236518

申请日：2008-09-24

申请人： Chi-Jui Lee ,  Shih-Hao Ko ,  Kuo-Jung Lan

发明人： Chi-Jui Lee ,  Shih-Hao Ko ,  Kuo-Jung Lan

IPC分类号： G11B7/00

CPC分类号： G11B7/08511 ,  G11B7/0909 ,  G11B7/0945

摘要： The present invention discloses a servo system of an optical storage device, the optical storage device includes a pick-up unit for detecting signals reflected from an optical disc to generate a plurality of detecting signals, the servo system includes: a focus error signal generating module coupled to the pick-up unit for generating a plurality of focus error signals according to the detecting signals; a focus servo control module coupled to the focus error signal generating module for generating a focus control signal according to the focus error signals; and a focus actuator coupled to the focus servo control module and the pick-up unit for controlling the pick-up unit to adjust a focus position on the optical disc according to the focus control signal.

摘要翻译： 本发明公开了一种光存储装置的伺服系统，所述光存储装置具有拾取单元，用于检测从光盘反射的信号，生成多个检测信号，所述伺服系统包括：聚焦误差信号生成模块 耦合到拾取单元，用于根据检测信号产生多个聚焦误差信号; 聚焦伺服控制模块，其耦合到聚焦误差信号产生模块，用于根据聚焦误差信号产生聚焦控制信号; 以及耦合到聚焦伺服控制模块和拾取单元的聚焦致动器，用于控制拾取单元根据聚焦控制信号调整光盘上的聚焦位置。

公开(公告)号：US20100278020A1

公开(公告)日：2010-11-04

申请号：US12835148

申请日：2010-07-13

申请人： Tzu-Ching Yang ,  Chuan-Li Wang ,  Ming-Tsung Huang ,  Shih-Hao Ko ,  Kuo-Jung Lan

发明人： Tzu-Ching Yang ,  Chuan-Li Wang ,  Ming-Tsung Huang ,  Shih-Hao Ko ,  Kuo-Jung Lan

IPC分类号： G11B7/00

CPC分类号： G11B7/0045 ,  G11B19/041 ,  G11B19/26

摘要： A recording apparatus for an optical disk drive is provided. The recording apparatus includes a driver, a servo signal generator, a filter, and a counter. The driver controls a recording speed of the optical disk drive. The servo signal generator generates at least a servo signal. The filter with a specific bandwidth filters the servo signal to generate a filtered servo signal. The counter generate a count value according to the filtered servo signal and instructs the driver to decrease the recording speed of the optical disk drive when the count value exceeds a trigger value, so as to record with the decreased recording speed.

摘要翻译： 提供了一种用于光盘驱动器的记录装置。 记录装置包括驱动器，伺服信号发生器，滤波器和计数器。 驱动器控制光盘驱动器的记录速度。 伺服信号发生器产生至少一个伺服信号。 具有特定带宽的滤波器对伺服信号进行滤波以产生滤波后的伺服信号。 计数器根据滤波的伺服信号产生计数值，并且当计数值超过触发值时指示驾驶员降低光盘驱动器的记录速度，以便以降低的记录速度进行记录。

公开(公告)号：US08254218B2

公开(公告)日：2012-08-28

申请号：US12835148

申请日：2010-07-13

申请人： Tzu-Ching Yang ,  Chuan-Li Wang ,  Ming-Tsung Huang ,  Shih-Hao Ko ,  Kuo-Jung Lan

发明人： Tzu-Ching Yang ,  Chuan-Li Wang ,  Ming-Tsung Huang ,  Shih-Hao Ko ,  Kuo-Jung Lan

IPC分类号： G11B7/00

CPC分类号： G11B7/0045 ,  G11B19/041 ,  G11B19/26

摘要： A recording apparatus for an optical disk drive is provided. The recording apparatus includes a driver, a servo signal generator, a filter, and a counter. The driver controls a recording speed of the optical disk drive. The servo signal generator generates at least a servo signal. The filter with a specific bandwidth filters the servo signal to generate a filtered servo signal. The counter generate a count value according to the filtered servo signal and instructs the driver to decrease the recording speed of the optical disk drive when the count value exceeds a trigger value, so as to record with the decreased recording speed.

摘要翻译： 提供了一种用于光盘驱动器的记录装置。 记录装置包括驱动器，伺服信号发生器，滤波器和计数器。 驱动器控制光盘驱动器的记录速度。 伺服信号发生器产生至少一个伺服信号。 具有特定带宽的滤波器对伺服信号进行滤波以产生滤波后的伺服信号。 计数器根据滤波的伺服信号产生计数值，并且当计数值超过触发值时指示驾驶员降低光盘驱动器的记录速度，以便以降低的记录速度进行记录。

公开(公告)号：US20120188861A1

公开(公告)日：2012-07-26

申请号：US13440291

申请日：2012-04-05

申请人： Kuo-Jung Lan ,  Hao-hui Yin ,  Chih-chung Wu ,  Tysh-bin Liu

发明人： Kuo-Jung Lan ,  Hao-hui Yin ,  Chih-chung Wu ,  Tysh-bin Liu

IPC分类号： G11B7/00

CPC分类号： G06F1/3203 ,  G06F1/3268 ,  G11B19/02 ,  Y02D10/154

摘要： A power saving method and a power saving system are applied in an optical disk drive. The power saving system comprises a power controlling unit for differentiating the specific sets of circuits not being used at a specific operation rate and powering them down. The sets of circuits not being used will be powered up while the associated operation rate at which they are required to operate is nearly started.

摘要翻译： 在光盘驱动器中应用省电方法和省电系统。 省电系统包括功率控制单元，用于将特定的电路组不区分于特定操作速率的电路，并向它们供电。 不使用的电路组将被启动，而需要操作的相关操作速率几乎开始。

公开(公告)号：US08089834B2

公开(公告)日：2012-01-03

申请号：US13009668

申请日：2011-01-19

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

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

IPC分类号： G11B7/00

CPC分类号： G11B7/0941 ,  G11B7/0903

摘要： 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 when the optical disk drive encounters an operating state transition. In a first 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 a second 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.

摘要翻译： 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。 当光盘驱动器遇到操作状态转换时，该装置调节控制光盘驱动器的伺服系统的多个伺服信号的增益。 在第一模式中，该装置的至少一个AGC环路在操作状态转换之后的特定时段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。 在第二模式中，装置的至少一个AGC环路根据紧接在运行状态转换之后的当前运行状态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：US20090245038A1

公开(公告)日：2009-10-01

申请号：US12478254

申请日：2009-06-04

申请人： Kuo-Jung Lan ,  Shu-Ching Chen

发明人： Kuo-Jung Lan ,  Shu-Ching Chen

IPC分类号： G11B7/00

CPC分类号： G11B7/08529

摘要： A track-jump control system and method are provided. The track-jump control system applied in an optical disc drive comprises a signal generator, a protection device, a velocity estimator, and a controller. The signal generator receives the signal from the PUH and generates a tracking signal and a position signal. The protection device receives the position signal and when the position signal represents the PUH pass a predetermined position of the optical disc, the protection device generates a protection signal. The velocity estimator estimates the velocity of the PUH according to the tracking signal, and then generates a velocity signal. The controller receives the velocity signal and the protection signal, protects the velocity signal according to the protection signal, and generates a control signal to control the track-jump according to the protected velocity signal.

摘要翻译： 提供了一种跟踪跳转控制系统和方法。 应用于光盘驱动器中的轨迹跳转控制系统包括信号发生器，保护装置，速度估计器和控制器。 信号发生器从PUH接收信号并产生跟踪信号和位置信号。 保护装置接收位置信号，当位置信号表示PUH通过光盘的预定位置时，保护装置产生保护信号。 速度估计器根据跟踪信号估计PUH的速度，然后产生速度信号。 控制器接收速度信号和保护信号，根据保护信号保护速度信号，并产生控制信号，根据受保护的速度信号控制轨迹跳跃。

公开(公告)号：US20070280079A1

公开(公告)日：2007-12-06

申请号：US11758006

申请日：2007-06-05

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

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

IPC分类号： G11B20/10

CPC分类号： G11B20/10009 ,  G11B2220/2537

摘要： An asymmetry measurement apparatus is disclosed. The asymmetry measurement apparatus is designed for detecting the recorded data reproduction waveform of an optical storage device in digital domain. The asymmetry measurement apparatus includes an Analog to Digital Converter (ADC) for converting an analog signal to a digital signal; a detection unit for detecting plurality values of the digital signal; and an asymmetry calculation unit for generating an asymmetry value of the digital signal according to the plurality values.

摘要翻译： 公开了一种不对称测量装置。 不对称测量装置被设计用于检测数字域中的光存储装置的记录数据再现波形。 不对称测量装置包括用于将模拟信号转换为数字信号的模数转换器（ADC）; 检测单元，用于检测数字信号的多个值; 以及不对称计算单元，用于根据多个值产生数字信号的不对称值。

公开(公告)号：US20070280059A1

公开(公告)日：2007-12-06

申请号：US11757426

申请日：2007-06-04

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

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

IPC分类号： G11B7/00

CPC分类号： G11B7/094 ,  G11B7/0941 ,  G11B7/0956 ,  G11B20/10009 ,  G11B2020/1287

摘要： 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.

摘要翻译： 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：US20070279274A1

公开(公告)日：2007-12-06

申请号：US11758119

申请日：2007-06-05

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

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

IPC分类号： H03M1/12

CPC分类号： H03M1/1225 ,  G11B7/0903 ,  G11B7/0912 ,  G11B7/0941 ,  G11B7/1263 ,  H03M1/129

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20070047402A1

公开(公告)日：2007-03-01

申请号：US11216917

申请日：2005-08-31

申请人： Shu-Cing Chen ,  Kuo-Jung Lan

发明人： Shu-Cing Chen ,  Kuo-Jung Lan

IPC分类号： G11B7/00

CPC分类号： G11B7/08517 ,  G11B7/08529

摘要： The invention relates to a track-jump control device, and in particular, to a track-jump control device for determining track-jump timing in an optical disc drive. A track-jump control device of a PUH comprises an L/G position indicator, a header alignment controller, and a jump controller. The L/G position indicator calculates an amount of sectors between the current position and an upcoming L/G switch point to generate a distance value. The header alignment controller controls the destination position locating in a safe area between two headers, and then generating a jump enabling signal. The jump controller coupled to the L/G position indicator and the header alignment controller determines track-jump timing according to the distance value and the jump enabling signal.

摘要翻译： 本发明涉及一种轨道跳跃控制装置，特别涉及一种用于确定光盘驱动器中的轨道跳跃定时的轨道跳跃控制装置。 PUH的轨道跳跃控制装置包括L / G位置指示器，标题对准控制器和跳转控制器。 L / G位置指示器计算当前位置和即将到来的L / G切换点之间的扇区量，以生成距离值。 标题对齐控制器控制位于两个报头之间的安全区域中的目的地位置，然后生成跳转使能信号。 耦合到L / G位置指示器和标题对准控制器的跳转控制器根据距离值和跳转使能信号确定轨迹跳跃定时。