公开(公告)号：US08300508B2

公开(公告)日：2012-10-30

申请号：US12890809

申请日：2010-09-27

申请人： Wen-Chun Feng ,  Yen-Chien Cheng ,  Shao-Lun Hung

发明人： Wen-Chun Feng ,  Yen-Chien Cheng ,  Shao-Lun Hung

IPC分类号： G11B20/18

CPC分类号： G11B7/0945

摘要： An apparatus for judging an optical disc includes a gain controller, an amplitude detecting unit and an amplitude comparing unit. The gain controller is used for receiving a radio frequency signal from an optical pickup head; and processing the radio frequency signal into an amplified radio frequency signal with a target amplitude according to an amplitude feedback signal. The amplitude detecting unit is used for receiving the amplified radio frequency signal, generating the amplitude feedback signal to the gain controller, and outputting a top envelope amplitude according to an top envelope signal of the amplified radio frequency signal. The amplitude comparing unit is used for comparing the top envelope amplitude with a threshold value to generate a resulting signal, and judging whether the laser beams emitted from the optical pickup head are irradiated on a blank area or a data-recorded area according to the resulting signal.

摘要翻译： 用于判断光盘的装置包括增益控制器，振幅检测单元和振幅比较单元。 增益控制器用于从光学拾取头接收射频信号; 并根据幅度反馈信号将射频信号处理成具有目标幅度的放大射频信号。 幅度检测单元用于接收放大的射频信号，向增益控制器产生幅度反馈信号，并根据放大射频信号的顶包络信号输出顶包络幅度。 振幅比较单元用于将顶包络幅度与阈值进行比较以产生结果信号，并且根据所得到的信号判断从光学拾取头发射的激光束是否照射在空白区域或数据记录区域 信号。

公开(公告)号：US20110310718A1

公开(公告)日：2011-12-22

申请号：US12890809

申请日：2010-09-27

申请人： Wen-Chun FENG ,  Yen-Chien Cheng ,  Shao-Lun Hung

发明人： Wen-Chun FENG ,  Yen-Chien Cheng ,  Shao-Lun Hung

IPC分类号： G11B27/36

CPC分类号： G11B7/0945

摘要： An apparatus for judging an optical disc includes a gain controller, an amplitude detecting unit and an amplitude comparing unit. The gain controller is used for receiving a radio frequency signal from an optical pickup head; and processing the radio frequency signal into an amplified radio frequency signal with a target amplitude according to an amplitude feedback signal. The amplitude detecting unit is used for receiving the amplified radio frequency signal, generating the amplitude feedback signal to the gain controller, and outputting a top envelope amplitude according to an top envelope signal of the amplified radio frequency signal. The amplitude comparing unit is used for comparing the top envelope amplitude with a threshold value to generate a resulting signal, and judging whether the laser beams emitted from the optical pickup head are irradiated on a blank area or a data-recorded area according to the resulting signal.

摘要翻译： 用于判断光盘的装置包括增益控制器，振幅检测单元和振幅比较单元。 增益控制器用于从光学拾取头接收射频信号; 并根据幅度反馈信号将射频信号处理成具有目标幅度的放大射频信号。 幅度检测单元用于接收放大的射频信号，向增益控制器产生幅度反馈信号，并根据放大射频信号的顶包络信号输出顶包络幅度。 振幅比较单元用于将顶包络幅度与阈值进行比较以产生结果信号，并且根据所得到的信号判断从光学拾取头发射的激光束是否照射在空白区域或数据记录区域 信号。

公开(公告)号：US20110158614A1

公开(公告)日：2011-06-30

申请号：US12773846

申请日：2010-05-05

申请人： Yen-Chien Cheng ,  Chien-Liang Yeh ,  Shao-Lun Hung

发明人： Yen-Chien Cheng ,  Chien-Liang Yeh ,  Shao-Lun Hung

IPC分类号： H02P3/04

CPC分类号： H02P3/04 ,  G11B19/2063 ,  G11B19/26 ,  G11B19/28 ,  H02P3/08 ,  H02P2203/09

摘要： A motor rotational speed control device for controlling a direct current (DC) brush motor is provided, which includes a motor driver, a detection unit and a central processing unit (CPU). The motor driver is coupled to a first control terminal and a second control terminal of the DC brush motor. The detection unit detects a back electromotive force (EMF) of the DC brush motor through the first control terminal and the second control terminal when the motor driver is set to a disable state, and accordingly generates back EMF information. The CPU determines whether the direct current brush motor has stopped rotating according to the back EMF information, and determines whether to generate a brake control signal according to a determination result. The motor driver reduces a rotation speed of the DC brush motor according to the brake control signal when the motor driver is set to an enable state.

摘要翻译： 提供一种用于控制直流（DC）电刷电动机的电动机转速控制装置，其包括电动机驱动器，检测单元和中央处理单元（CPU）。 马达驱动器耦合到DC刷马达的第一控制端子和第二控制端子。 当马达驱动器被设置为禁用状态时，检测单元通过第一控制端子和第二控制端子检测直流电刷电动机的反电动势（EMF），从而产生反电动势信息。 CPU根据反电动势信息确定直流电刷电动机是否停止转动，并根据确定结果确定是否产生制动控制信号。 当电动机驱动器设定为使能状态时，电动机驱动器根据制动控制信号降低直流电刷电动机的转速。

公开(公告)号：US07916598B2

公开(公告)日：2011-03-29

申请号：US12534866

申请日：2009-08-04

申请人： Wen-Chun Feng ,  Yen-Chien Cheng

发明人： Wen-Chun Feng ,  Yen-Chien Cheng

IPC分类号： G11B7/00

CPC分类号： G11B19/125 ,  G11B7/0945

摘要： A method for determining a type of a disk and an optical storage apparatus thereof are provided. The method includes when the disk placed in the optical storage device is not a blank disk, determining whether the phases between a first signal and a second signal of the disk are the same or not; and determining that the disk is a low to high (LTH) data disk or a high to low data disk (HTL) data disk upon whether the phases of the first signal and the second signal are the same or not. Therefore, the reading parameters are correspondingly loaded in the optical storage device according to the type of the disk.

摘要翻译： 提供了一种用于确定盘的类型的方法及其光学存储装置。 该方法包括当放置在光存储装置中的盘不是空白盘时，确定盘的第一信号和第二信号之间的相位是否相同; 以及根据第一信号和第二信号的相位是否相同，确定盘是低到高（LTH）数据盘或高到低数据盘（HTL）数据盘。 因此，读取参数根据盘的类型相应地加载在光存储装置中。

公开(公告)号：US08299746B2

公开(公告)日：2012-10-30

申请号：US12851644

申请日：2010-08-06

申请人： Wen-Chun Feng ,  Yen-Chien Cheng

发明人： Wen-Chun Feng ,  Yen-Chien Cheng

IPC分类号： H02P1/46

CPC分类号： G11B7/08582

摘要： A move-sled-home device is used in an optical disc drive. The move-sled-home device includes a processing unit, a motor actuator, a sled, a sled motor, and a current-detecting unit. The processing unit outputs a control signal. The motor actuator generates a driving voltage according to the control signal. The sled motor generates a driving current according to the driving voltage to move the sled. The current-detecting unit is used for receiving and converting the driving current into an indicating signal, and issuing the indicating signal to the processing unit. During a move-sled-home action, the processing unit realizes a magnitude of the driving current according to the indicating signal, thereby determining whether the move-sled-home action is finished.

摘要翻译： 在光盘驱动器中使用移动式家用设备。 移动式家用设备包括处理单元，电机致动器，滑板，滑动马达和电流检测单元。 处理单元输出控制信号。 电机执行器根据控制信号产生驱动电压。 滑动马达根据驱动电压产生驱动电流以移动滑板。 电流检测单元用于将驱动电流接收并转换成指示信号，并将指示信号发送到处理单元。 在移动回车动作期间，处理单元根据指示信号实现驱动电流的大小，从而确定移动回车动作是否完成。

公开(公告)号：US20110055857A1

公开(公告)日：2011-03-03

申请号：US12851644

申请日：2010-08-06

申请人： Wen-Chun FENG ,  Yen-Chien Cheng

发明人： Wen-Chun FENG ,  Yen-Chien Cheng

IPC分类号： G11B17/028

CPC分类号： G11B7/08582

摘要： A move-sled-home device is used in an optical disc drive. The move-sled-home device includes a processing unit, a motor actuator, a sled, a sled motor, and a current-detecting unit. The processing unit outputs a control signal. The motor actuator generates a driving voltage according to the control signal. The sled motor generates a driving current according to the driving voltage to move the sled. The current-detecting unit is used for receiving and converting the driving current into an indicating signal, and issuing the indicating signal to the processing unit. During a move-sled-home action, the processing unit realizes a magnitude of the driving current according to the indicating signal, thereby determining whether the move-sled-home action is finished.

摘要翻译： 在光盘驱动器中使用移动式家用设备。 移动式家用设备包括处理单元，电机致动器，滑板，滑动马达和电流检测单元。 处理单元输出控制信号。 电机执行器根据控制信号产生驱动电压。 滑动马达根据驱动电压产生驱动电流以移动滑板。 电流检测单元用于将驱动电流接收并转换成指示信号，并将指示信号发送到处理单元。 在移动回车动作期间，处理单元根据指示信号实现驱动电流的大小，从而确定移动回车动作是否完成。

公开(公告)号：US20100271918A1

公开(公告)日：2010-10-28

申请号：US12534866

申请日：2009-08-04

申请人： Wen-Chun Feng ,  Yen-Chien Cheng

发明人： Wen-Chun Feng ,  Yen-Chien Cheng

IPC分类号： G11B27/36

CPC分类号： G11B19/125 ,  G11B7/0945

摘要： A method for determining a type of a disk and an optical storage apparatus thereof are provided. The method includes when the disk placed in the optical storage device is not a blank disk, determining whether the phases between a first signal and a second signal of the disk are the same or not; and determining that the disk is a low to high (LTH) data disk or a high to low data disk (HTL) data disk upon whether the phases of the first signal and the second signal are the same or not. Therefore, the reading parameters are correspondingly loaded in the optical storage device according to the type of the disk.

摘要翻译： 提供了一种用于确定盘的类型的方法及其光学存储装置。 该方法包括当放置在光存储装置中的盘不是空白盘时，确定盘的第一信号和第二信号之间的相位是否相同; 以及根据第一信号和第二信号的相位是否相同，确定盘是低到高（LTH）数据盘或高到低数据盘（HTL）数据盘。 因此，读取参数根据盘的类型相应地加载在光存储装置中。

公开(公告)号：US08749411B2

公开(公告)日：2014-06-10

申请号：US13746312

申请日：2013-01-22

申请人： Yen-Chien Cheng ,  Yung-Chi Yang ,  Chien-Yi Wu

发明人： Yen-Chien Cheng ,  Yung-Chi Yang ,  Chien-Yi Wu

IPC分类号： H03M1/06

CPC分类号： H03M1/1235 ,  H03M1/181

摘要： An analog-to-digital conversion device and a method thereof are provided. The analog-to-digital conversion device includes a first level adjustment unit, an analog-to-digital converter (ADC), and a linear range detection unit. The ADC converts a test signal or a first input signal to generate a test data stream or a first output data stream. In an adjustment mode, the linear range detection unit obtains a conversion curve of the ADC by using the test data stream and determines whether to adjust offset control information according to a linear range of the conversion curve. In an operation mode, the linear range detection unit continues outputting the offset control information. Additionally, before transmitting the first input signal, the first level adjustment unit adjusts a direct-current level of the first input signal according to the offset control information to allow the first input signal to be within the linear range of the conversion curve.

摘要翻译： 提供了一种模拟 - 数字转换装置及其方法。 模数转换装置包括第一电平调整单元，模数转换器（ADC）和线性范围检测单元。 ADC转换测试信号或第一输入信号以产生测试数据流或第一输出数据流。 在调整模式中，线性范围检测单元通过使用测试数据流来获得ADC的转换曲线，并根据转换曲线的线性范围来确定是否调整偏移控制信息。 在操作模式中，线性范围检测单元继续输出偏移控制信息。 此外，在发送第一输入信号之前，第一电平调整单元根据偏移控制信息来调整第一输入信号的直流电平，以允许第一输入信号在转换曲线的线性范围内。

公开(公告)号：US20130194119A1

公开(公告)日：2013-08-01

申请号：US13746312

申请日：2013-01-22

申请人： Yen-Chien Cheng ,  Yung-Chi Yang ,  Chien-Yi Wu

发明人： Yen-Chien Cheng ,  Yung-Chi Yang ,  Chien-Yi Wu

IPC分类号： H03M1/12

CPC分类号： H03M1/1235 ,  H03M1/181

摘要： An analog-to-digital conversion device and a method thereof are provided. The analog-to-digital conversion device includes a first level adjustment unit, an analog-to-digital converter (ADC), and a linear range detection unit. The ADC converts a test signal or a first input signal to generate a test data stream or a first output data stream. In an adjustment mode, the linear range detection unit obtains a conversion curve of the ADC by using the test data stream and determines whether to adjust offset control information according to a linear range of the conversion curve. In an operation mode, the linear range detection unit continues outputting the offset control information. Additionally, before transmitting the first input signal, the first level adjustment unit adjusts a direct-current level of the first input signal according to the offset control information to allow the first input signal to be within the linear range of the conversion curve.

摘要翻译： 提供了一种模拟 - 数字转换装置及其方法。 模数转换装置包括第一电平调整单元，模数转换器（ADC）和线性范围检测单元。 ADC转换测试信号或第一输入信号以产生测试数据流或第一输出数据流。 在调整模式中，线性范围检测单元通过使用测试数据流来获得ADC的转换曲线，并根据转换曲线的线性范围来确定是否调整偏移控制信息。 在操作模式中，线性范围检测单元继续输出偏移控制信息。 此外，在发送第一输入信号之前，第一电平调整单元根据偏移控制信息来调整第一输入信号的直流电平，以允许第一输入信号在转换曲线的线性范围内。

公开(公告)号：US08654621B2

公开(公告)日：2014-02-18

申请号：US13303322

申请日：2011-11-23

申请人： Yen-Chien Cheng ,  Yung-Chi Yang ,  Zheng-Xiong Chen

发明人： Yen-Chien Cheng ,  Yung-Chi Yang ,  Zheng-Xiong Chen

IPC分类号： G11B5/09

CPC分类号： G11B20/10009 ,  G11B20/10037 ,  G11B20/10222 ,  H04L7/0331 ,  H04L25/0204

摘要： A data recovery method includes the following steps. Firstly, plural sampling values are classified into a first group, a second group, a third group and a fourth group. A first channel estimation value and a second channel estimation value are generated according to the sampling values of the second group and the third group. A judging step is performed to judge whether a first sampling value of the first group is lower than the first channel estimation value or a second sampling value of the fourth group is higher than the second channel estimation value. If the judging condition is satisfied, a polarity of the first sampling value or the second sampling value is changed and then the plural sampling values are outputted. If the judging condition is not satisfied, the plural sampling values are directly outputted.

摘要翻译： 数据恢复方法包括以下步骤。 首先，将多个采样值分为第一组，第二组，第三组和第四组。 根据第二组和第三组的采样值生成第一信道估计值和第二信道估计值。 执行判断步骤，以判断第一组的第一采样值是否低于第一信道估计值，或者第四组的第二采样值高于第二信道估计值。 如果满足判断条件，则改变第一采样值或第二采样值的极性，然后输出多个采样值。 如果判断条件不满足，则直接输出多个采样值。