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：US20120016610A1

公开(公告)日：2012-01-19

申请号：US12838751

申请日：2010-07-19

申请人： Kuo-Jung Lan

发明人： Kuo-Jung Lan

IPC分类号： G01R19/252 ,  G06F19/00 ,  G01K15/00 ,  G01K7/22

CPC分类号： G01K7/24 ,  G01K3/005

摘要： A temperature measurement device is provided to measure an environment temperature and includes a thermistor, a resistor, a determination circuit, and a measurement circuit. The thermistor is coupled to a first node. The thermistor has a specific impedance value at a specific environment temperature point. The resistor has a first terminal coupled to the first node. The determination circuit determines a real impedance value of the resistor. The measurement circuit is coupled to the first node for receiving a measurement value signal generated at the first node and obtains a value of the specific environment temperature point according to the measurement value signal and the real impedance value of the resistor.

摘要翻译： 提供温度测量装置来测量环境温度，并包括热敏电阻，电阻，确定电路和测量电路。 热敏电阻耦合到第一节点。 热敏电阻在特定环境温度点具有特定的阻抗值。 电阻器具有耦合到第一节点的第一端子。 确定电路确定电阻器的实际阻抗值。 测量电路耦合到第一节点，用于接收在第一节点处产生的测量值信号，并根据测量值信号和电阻器的实际阻抗值获得特定环境温度点的值。

公开(公告)号：US07903006B2

公开(公告)日：2011-03-08

申请号：US12273601

申请日：2008-11-19

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： H03M1/00

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：US07796480B2

公开(公告)日：2010-09-14

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：US07706238B2

公开(公告)日：2010-04-27

申请号：US11758018

申请日：2007-06-05

申请人： Ming-Jiou Yu ,  Chun-Yu Lin ,  Kuo-Jung Lan ,  Kuan-Hua Chao ,  Chia-Wei Liao ,  Chih-Ching Chen ,  Shu-Hung Chou ,  Jong-Woei Chen

发明人： Ming-Jiou Yu ,  Chun-Yu Lin ,  Kuo-Jung Lan ,  Kuan-Hua Chao ,  Chia-Wei Liao ,  Chih-Ching Chen ,  Shu-Hung Chou ,  Jong-Woei Chen

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/08505 ,  G11B7/0903

摘要： A laser power control system and related method for reducing a settling time in a target laser power transition are disclosed. The laser power control system includes a state decision circuit, for generating a state decision signal according to a selected operational state of a target circuit; a plurality of buffers, for storing a plurality of control data corresponding to a plurality of candidate operational states of the target circuit respectively; and a multiplexer, coupled between the state decision circuit and the buffers, for coupling a selected buffer of the buffers and the target circuit according to the state decision signal for outputting a control datum stored in the selected buffer to the target circuit.

摘要翻译： 公开了一种用于减少目标激光功率转换中的建立时间的激光功率控制系统和相关方法。 激光功率控制系统包括状态判定电路，用于根据所选择的目标电路的操作状态产生状态判定信号; 多个缓冲器，用于分别存储对应于所述目标电路的多个候选操作状态的多个控制数据; 以及耦合在所述状态判定电路和所述缓冲器之间的多路复用器，用于根据用于将所选择的缓冲器中存储的控制数据输出到所述目标电路的所述状态判定信号来耦合所述缓冲器的选定缓冲器和所述目标电路。

公开(公告)号：US20100008199A1

公开(公告)日：2010-01-14

申请号：US12171303

申请日：2008-07-11

申请人： Hao-Hui Yin ,  Chih-Chung Wu ,  Kuo-Jung Lan

发明人： Hao-Hui Yin ,  Chih-Chung Wu ,  Kuo-Jung Lan

IPC分类号： G11B5/00

CPC分类号： G11B7/0901 ,  G11B7/00718 ,  G11B7/094

摘要： A method for controlling a position of a laser spot of a laser beam on an optical storage medium of a land and groove recording/reproduction type is provided. The method includes: detecting a pulse occurring in a reference signal while the laser spot is passing through a boundary between a groove track and a land track, wherein the reference signal is generated according to a reflected laser beam from the optical storage medium; determining a compensation value of the reference signal according to the pulse; utilizing the compensation value to adjust the reference signal for generating an adjusted reference signal; and utilizing the adjusted reference signal to control the position of the laser spot.

摘要翻译： 提供了一种用于控制激光束的激光光斑在纹间和凹槽记录/再现类型的光学存储介质上的位置的方法。 该方法包括：检测在激光光斑通过凹槽轨道和脊迹道之间的边界时在参考信号中发生的脉冲，其中参考信号根据来自光存储介质的反射激光束产生; 根据脉冲确定参考信号的补偿值; 利用所述补偿值来调整所述参考信号以产生经调整的参考信号; 并利用调整后的参考信号来控制激光点的位置。

公开(公告)号：US20080247284A1

公开(公告)日：2008-10-09

申请号：US12102529

申请日：2008-04-14

申请人： Tzu-Ming Chou ,  Kun-Hung Hsieh ,  Wei-Yu Lin ,  Yao-Lung Chuang ,  Chun-Jen Chen ,  Kuo-Jung Lan

发明人： Tzu-Ming Chou ,  Kun-Hung Hsieh ,  Wei-Yu Lin ,  Yao-Lung Chuang ,  Chun-Jen Chen ,  Kuo-Jung Lan

IPC分类号： G11B7/00

CPC分类号： G11B19/041 ,  G11B7/0045 ,  G11B7/1267 ,  G11B19/04 ,  G11B19/26 ,  G11B19/28

摘要： A recording method for an optical disk drive is implemented as follows. First, at least one of the level of the focusing error signal, the level of the tracking error signal, a wobble synchronization pattern loss, the error rate of demodulating a wobble signal, the frequency of buffer under-run occurrence, the temperature of the drive, the wobble jitter and the level of write power is detected. If at least one detected value exceeds the preset value, the recording will be ceased. Then, the rotation speed of the optical disk drive is decreased, and the recording is resumed with the decreased rotation speed. If at least one of the temperature of the drive, the wobble jitter and the estimated write power exceeds the reset value before recording starts, the rotation speed of the optical disk drive is decreased before recording.

摘要翻译： 光盘驱动器的记录方法如下进行。 首先，聚焦误差信号的电平，跟踪误差信号的电平，摆动同步模式损耗，解调摆动信号的误码率，缓冲器欠载发生的频率， 驱动，检测摆动抖动和写入电平。 如果至少一个检测值超过预设值，则停止录制。 然后，光盘驱动器的旋转速度降低，并且以降低的转速恢复记录。 如果在记录开始之前驱动器的温度，摆动抖动和估计的写入功率中的至少一个超过复位值，则在记录之前光盘驱动器的转速减小。

公开(公告)号：US20080101175A1

公开(公告)日：2008-05-01

申请号：US11555543

申请日：2006-11-01

申请人： Yung-chi Shen ,  Shih-jung Chiu ,  Wei-hsin Hsu ,  Kuo-jung Lan

发明人： Yung-chi Shen ,  Shih-jung Chiu ,  Wei-hsin Hsu ,  Kuo-jung Lan

IPC分类号： G11B20/10

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

摘要： The present invention sets forth a power saving method and a power saving system applied in an optical disk drive. The power saving system comprises a central processing unit, a spindle motor, an optical pick-up unit, an analog portion of control circuits and a digital portion of control circuits. Each of the analog or digital portions of control circuits can be divided into several sets of circuits. Each set of circuits is coupled to an associated operation mode of the optical disk drive. The power saving system further comprises a power controlling unit for differentiating the specific sets of circuits not being used in the specific operation mode and powering them down. The sets of circuits not being used will be powered up while the associated operation mode in which they are required to operate is nearly started. The present invention also provides a power saving method of powering down the sets of circuits not being used relative to a specific operation mode of the optical disk drive.

摘要翻译： 本发明提出了一种应用在光盘驱动器中的省电方法和省电系统。 省电系统包括中央处理单元，主轴电机，光拾取单元，控制电路的模拟部分和控制电路的数字部分。 控制电路的模拟或数字部分中的每一个可以被分成几组电路。 每组电路耦合到光盘驱动器的相关操作模式。 省电系统还包括功率控制单元，用于区分在特定操作模式中未被使用的特定电路组，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模式几乎开始。 本发明还提供了一种省电方法，该方法相对于光盘驱动器的特定操作模式而使用的电路组不被使用。

公开(公告)号：US20070280062A1

公开(公告)日：2007-12-06

申请号：US11758102

申请日：2007-06-05

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

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

IPC分类号： G11B7/00

CPC分类号： G11B20/10009 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/10046

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： G11B7/00

CPC分类号： G11B20/10027 ,  G11B20/10046 ,  G11B20/10203 ,  G11B20/10222 ,  G11B2220/2575

摘要： 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.

摘要翻译： 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。