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1. 发明申请

US20120044792A1 METHOD AND APPARATUS FOR DETERMINING AN OPTIMAL FOCUS BIAS AND SPHERICAL ABERRATION COMPENSATING VALUE IN AN OPTICAL DISC DRIVE 有权
标题翻译：用于确定最佳焦点偏差的方法和装置以及在光盘驱动器中补偿值的球面积分
公开(公告)号：US20120044792A1
公开(公告)日：2012-02-23
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： G11B7/135
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值并测量对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。

2. 发明授权

US08526277B2 Method for determining type of optical disk and optical storage device 有权
标题翻译：用于确定光盘类型和光存储设备的方法
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。

3. 发明授权

US08299746B2 Move-sled-home device and method for use in optical disc drive 有权
标题翻译：移动式家用设备和方法用于光盘驱动器
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。

4. 发明授权

US08154959B2 Optical storage system and spherical aberration compensation apparatus and method thereof 有权
标题翻译：光学存储系统和球面像差补偿装置及其方法
公开(公告)号：US08154959B2
公开(公告)日：2012-04-10
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 repeatedly regulates a compensation value of an SA compensation driver in the optical-pickup-head (OPH) after the microprocessor has determined the type of an optical storage medium and before the OPH has 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已经聚焦在光存储介质之前，微处理器重复地调节光拾取头（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。

5. 发明申请

US20080310262A1 METHOD FOR AUTOMATICALLY CALIBRATING OUTPUT POWER OF OPTICAL PICK-UP HEAD AND OPTICAL DISC DRIVER USING THE METHOD 有权
标题翻译：使用该方法自动校准光学拾取头和光盘驱动器的输出功率的方法
公开(公告)号：US20080310262A1
公开(公告)日：2008-12-18
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。

6. 发明授权

US08363516B2 Method and apparatus for compensating astigmatism in an optical storage system 有权
标题翻译：用于补偿光学存储系统中散光的方法和装置
公开(公告)号：US08363516B2
公开(公告)日：2013-01-29
申请号：US12349663
申请日：2009-01-07
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： G11B7/094 , G11B7/08523 , G11B7/0945 , G11B7/1378 , G11B2007/0006
摘要： The present invention discloses a method and an apparatus for compensating astigmatism in an optical storage system. Firstly, the optical storage system focuses on an optical disc and proceeds track seeking. While track seeking, the astigmatism compensator continues adjusting and an astigmatism index signal is also measured. At last, an optimal astigmatism compensated value of the astigmatism compensator is acquired based on the measured result of the astigmatism index signal.
摘要翻译：本发明公开了一种用于补偿光学存储系统中散光的方法和装置。首先，光存储系统专注于光盘并进行追踪。在寻迹的同时，散光补偿器继续调整，还可以测量散光指数信号。最后，基于散光指标信号的测量结果，获得散光补偿器的最佳像散补偿值。

7. 发明授权

US08300508B2 Method and apparatus for judging blank area and data recorded-area of optical disc 有权
标题翻译：用于判断光盘的空白区域和数据记录区域的方法和装置
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。

8. 发明授权

US08130604B2 Spherical aberration compensation method and device of optical disc drive 有权
标题翻译：球面像差补偿方法及光盘驱动装置
公开(公告)号：US08130604B2
公开(公告)日：2012-03-06
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。

9. 发明授权

US07751291B2 Optical disc identification apparatus and method of identifying optical disc 有权
标题翻译：光盘识别装置及识别光盘的方法
公开(公告)号：US07751291B2
公开(公告)日：2010-07-06
申请号：US11870221
申请日：2007-10-10
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： G11B23/36 , G11B23/44
摘要： An optical disc identification apparatus is disclosed. The optical disc identification apparatus includes an optic pickup unit and a control unit. The optic pickup unit has a plurality of laser sources. The optic pickup unit emits any of lasers to the optical disc and detects the reflected laser from the optical disc to transduce the reflected laser to a detection signal. The control unit controls the optic pickup unit to activate any of the laser sources and moves an object lens of the optic pickup unit. When the object lens moves, the control unit obtains a sectional width value of an S-curve of a focus FE signal according to the detection signal. The control unit repeats above steps to obtain the sectional width values of the S-curves of all the laser sources and identifies the optical disc according to all the sectional width values.
摘要翻译：公开了一种光盘识别装置。光盘识别装置包括光学拾取单元和控制单元。光学拾取单元具有多个激光源。光学拾取单元向光盘发射任何激光，并且检测来自光盘的反射激光以将反射的激光转换成检测信号。控制单元控制光学拾取单元激活任何激光源并移动光学拾取单元的物镜。当物镜移动时，控制单元根据检测信号获得焦点FE信号的S曲线的截面宽度值。控制单元重复上述步骤以获得所有激光源的S曲线的截面宽度值，并根据所有截面宽度值识别光盘。

10. 发明授权

US08422346B2 Method and apparatus for determining the number of data layers in an optical disc 有权
标题翻译：用于确定光盘中数据层数量的方法和装置
公开(公告)号：US08422346B2
公开(公告)日：2013-04-16
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： G11B15/04
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。

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