公开(公告)号：US08351310B2

公开(公告)日：2013-01-08

申请号：US13207851

申请日：2011-08-11

申请人： Wen-Chun Feng

发明人： Wen-Chun Feng

IPC分类号： G11B7/00

CPC分类号： G11B7/13925 ,  G11B7/094 ,  G11B7/0948

摘要： A method for determining an optimal combination of focus bias and spherical aberration compensating value (SA value) in an optical disc drive is provided. Firstly, a first focus bias is set, the SA values are adjusted and the corresponding tracking error signal values are measured. Second-order-approximation is performed to obtain a first maximum value of tracking error signal. Secondly, a second focus bias is set, the SA values are adjusted and the corresponding tracking error signal values are measured. Second-order-approximation is performed to obtain a second maximum value of tracking error signal. Thirdly, a third focus bias is set, the SA values are adjusted and the corresponding tracking error signal values are measured. Second-order-approximation is performed to obtain a third maximum value of the tracking error signal. The three maximum values are compared to obtain the optimal combination of focus bias and SA compensating value in the optical disc drive.

摘要翻译： 提供了一种用于确定光盘驱动器中的焦点偏置和球面像差补偿值（SA值）的最佳组合的方法。 首先，设置第一焦点偏置，调整SA值并测量相应的跟踪误差信号值。 执行二阶近似以获得跟踪误差信号的第一最大值。 其次，设置第二焦点偏置，调整SA值并测量相应的跟踪误差信号值。 执行二阶近似以获得跟踪误差信号的第二最大值。 第三，设置第三焦点偏置，调整SA值并测量相应的跟踪误差信号值。 执行二阶近似以获得跟踪误差信号的第三最大值。 比较三个最大值以获得光盘驱动器中聚焦偏置和SA补偿值的最佳组合。

公开(公告)号：US08233364B2

公开(公告)日：2012-07-31

申请号：US12875514

申请日：2010-09-03

申请人： Wen-Chun Feng ,  Chien-Liang Yeh

发明人： Wen-Chun Feng ,  Chien-Liang Yeh

IPC分类号： G11B27/36

CPC分类号： G11B19/12 ,  G11B2007/0006

摘要： An optical disc identifying device includes an optical pickup head, a digital signal processor and a radio frequency amplifier. The optical pickup head has a plurality of laser diodes and a lens. During a start-up procedure, a non-blue laser diode of the optical pickup head is turned on to irradiate a loaded optical disc, thereby generating an electronic signal. The digital signal processor outputs a driving signal, thereby controlling a motor driver to move the lens in a focusing direction. The radio frequency amplifier receives the electronic signal during the movement of the lens, thereby generating a first signal. The digital signal processor includes a detecting unit for comparing the first signal with a slicing signal to generate a pulse signal, and determining whether the optical disc is a blue-ray disc or a non-blue-ray disc according to a pulse number of the pulse signal.

摘要翻译： 光盘识别装置包括光拾取头，数字信号处理器和射频放大器。 光拾取头具有多个激光二极管和透镜。 在启动过程中，光拾取头的非蓝色激光二极管被接通以照射加载的光盘，从而产生电子信号。 数字信号处理器输出驱动信号，从而控制电动机驱动器沿聚焦方向移动透镜。 射频放大器在透镜移动期间接收电子信号，从而产生第一信号。 数字信号处理器包括检测单元，用于将第一信号与限幅信号进行比较以产生脉冲信号，并根据脉冲数确定光盘是蓝光盘还是非蓝光光盘 脉冲信号。

公开(公告)号：US20120014238A1

公开(公告)日：2012-01-19

申请号：US12955304

申请日：2010-11-29

申请人： Wen-Chun FENG ,  Zhi-Hsin LIN

发明人： Wen-Chun FENG ,  Zhi-Hsin LIN

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/1378 ,  G11B7/13925 ,  G11B2007/13727

摘要： A spherical aberration compensation method is provided. A first thickness of a cover layer at a first radius position of an optical disc is measured. A second thickness of the cover layer at a second radius position of the optical disc is measured. A spherical aberration calibration is performed at a third radius position of the optical disc to obtain an optimal spherical aberration compensation value. According to the first and second radius positions, the first and second thicknesses, and the optimal spherical aberration compensation value at the third radius position, a spherical aberration compensation formula is acquired. Afterwards, an updated spherical aberration compensation value is calculated by the spherical aberration compensation formula according to a fourth radius position where an optical pickup head of the optical disc drive is located. The updated spherical aberration compensation value is inputted into a spherical aberration compensator of the optical disc drive.

摘要翻译： 提供球面像差补偿方法。 测量在光盘的第一半径位置处的覆盖层的第一厚度。 测量在光盘的第二半径位置处的覆盖层的第二厚度。 在光盘的第三半径位置处进行球面像差校准，以获得最佳的球面像差补偿值。 根据第一和第二半径位置，第一和第二厚度以及在第三半径位置处的最佳球面像差补偿值，获得球面像差补偿公式。 然后，通过根据光盘驱动器的光学拾取头所在的第四半径位置的球面像差补偿公式来计算更新的球面像差补偿值。 更新的球面像差补偿值被输入到光盘驱动器的球面像差补偿器。

公开(公告)号：US20110310717A1

公开(公告)日：2011-12-22

申请号：US13100958

申请日：2011-05-04

申请人： Wen-Chun Feng

发明人： Wen-Chun Feng

IPC分类号： G11B19/06

CPC分类号： G11B19/127

摘要： The present invention provides a method and an apparatus for determining the number of data layers in an optical disc. Firstly, the objective lens of the optical pickup head is controlled so that it moves toward the optical disc. At the same time, a generated SBAD signal is recorded. The number of wave peaks in the SBAD signal is then detected and the number of the data layers in an optical disc is determined according to the detected number of wave peaks in the SBAD signal.

摘要翻译： 本发明提供一种用于确定光盘中的数据层数量的方法和装置。 首先，控制光拾取头的物镜使其向光盘移动。 同时，记录生成的SBAD信号。 然后检测SBAD信号中的波峰的数量，并且根据检测到的SBAD信号中的波峰的数量来确定光盘中的数据层的数量。

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：US07843783B2

公开(公告)日：2010-11-30

申请号：US12136781

申请日：2008-06-11

申请人： Yao-Wen Liu ,  Wen-Chun Feng

发明人： Yao-Wen Liu ,  Wen-Chun Feng

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  G11B7/00456

摘要： A method for automatically calibrating an output power of an optical pick-up head is provided. First, an optical disc is provided, wherein a relationship between the output power for writing the optical disc and a specific parameter corresponding thereto is defined as a first function. Next, the optical pick-up head is controlled to perform a writing operation on the optical disc according to an instruction value, and obtain the specific parameter corresponding to the instruction value. Next, the output power corresponding to the instruction value is obtained according to the first function and the specific parameter. Next, the instruction value is adjusted according to the instruction value and the output power, and the output power of the optical pick-up head is calibrated according to the adjusted instruction value.

摘要翻译： 提供了一种用于自动校准光学拾取头的输出功率的方法。 首先，提供光盘，其中用于写入光盘的输出功率与对应的光盘的特定参数之间的关系被定义为第一功能。 接下来，控制光拾取头，根据指示值对光盘执行写入操作，并获得对应于指令值的特定参数。 接下来，根据第一功能和具体参数获得与指示值相对应的输出功率。 接下来，根据指示值和输出功率来调整指令值，并且根据调整的指令值校准光学拾取头的输出功率。

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：US20090323480A1

公开(公告)日：2009-12-31

申请号：US12344227

申请日：2008-12-25

申请人： Wen-Chun Feng ,  Chien-Liang Yeh

发明人： Wen-Chun Feng ,  Chien-Liang Yeh

IPC分类号： G11B7/00

CPC分类号： G11B7/13925 ,  G11B7/0945 ,  G11B2007/0006

摘要： An optical storage system and a spherical aberration (SA) compensation apparatus and method thereof are provided. The SA compensation apparatus includes a microprocessor and a digital-signal-processor (DSP). The microprocessor regulates a compensation value of an SA compensation driver in the optical-pickup-head (OPH) several times after the microprocessor has determined the type of an optical storage medium and before the OPH has not focused on the optical storage medium. The DSP processes a plurality of electrical signals converted through the OPH whenever the microprocessor has regulated the compensation value of the SA compensation driver, so as to obtain width values of a plurality of focus-error (FE) signals. Accordingly, the microprocessor makes the SA compensation driver to drive an SA compensation unit according to the width values of the FE signals, so as to compensate an SA of the light point generated by the OPH and focused on the optical storage medium.

摘要翻译： 提供了光学存储系统和球面像差（SA）补偿装置及其方法。 SA补偿装置包括微处理器和数字信号处理器（DSP）。 在微处理器确定光存储介质的类型之后以及在OPH尚未集中在光存储介质上之前，微处理器多次调节光拾取头（OPH）中的SA补偿驱动器的补偿值。 只要微处理器调节了SA补偿驱动器的补偿值，DSP处理通过OPH转换的多个电信号，以获得多个聚焦误差（FE）信号的宽度值。 因此，微处理器使SA补偿驱动器根据FE信号的宽度值驱动SA补偿单元，以补偿由OPH产生的并聚焦在光存储介质上的光点的SA。

公开(公告)号：US08526277B2

公开(公告)日：2013-09-03

申请号：US13040269

申请日：2011-03-04

申请人： Wen-Chun Feng ,  Chien-Liang Yeh

发明人： Wen-Chun Feng ,  Chien-Liang Yeh

IPC分类号： G11B7/00 ,  G11B5/58 ,  G11B5/55

CPC分类号： G11B19/12

摘要： A method for determining a type of an optical disk includes following steps. A laser beam of a first type is focused on a disk to generate a first optical reflection signal. A first spherical aberration estimate is generated according to the degree of dispersion and strength of the first optical reflection signal. A laser beam of a second type is focused on the disk to generate a second optical reflection signal. A second spherical aberration estimate is generated according to the degree of dispersion and strength of the second optical reflection signal. The type of the disk is determined based on the first spherical aberration estimate and the second spherical aberration estimate.

摘要翻译： 一种用于确定光盘类型的方法包括以下步骤。 第一类型的激光束聚焦在盘上以产生第一光反射信号。 根据第一光反射信号的色散度和强度产生第一球面像差估计。 第二类型的激光束聚焦在盘上以产生第二光反射信号。 根据第二光反射信号的色散度和强度产生第二球面像差估计。 基于第一球面像差估计和第二球面像差估计来确定盘的类型。

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。