公开(公告)号：US20100177606A1

公开(公告)日：2010-07-15

申请号：US12683324

申请日：2010-01-06

申请人： Chia-Hsing HSU ,  Ming-Tsung Hsieh ,  Yi-Long Hsiao

发明人： Chia-Hsing HSU ,  Ming-Tsung Hsieh ,  Yi-Long Hsiao

IPC分类号： G11B7/00

CPC分类号： G11B19/127 ,  G11B2007/0006 ,  G11B2007/0013

摘要： A method for identifying a layer number of an optical disc is provided. Firstly, a SA value is adjusted to a standard SA value of each of two data layers in sequence. Next, focusing courses are performed so as to enable the focus point to pass through the optical disc. Then, maximum amplitudes of focusing error signals in the focusing courses are recorded. After that, whether the maximum amplitudes of the focusing error signals recorded in the focusing courses are equal is checked. If the maximum amplitudes are equal, the optical disc is identified as a double-layered disc. If the maximum amplitudes are not equal, the optical disc is identified as a single-layered disc.

摘要翻译： 提供了一种用于识别光盘的层数的方法。 首先，将SA值依次调整为两个数据层的标准SA值。 接下来，执行聚焦过程，以使焦点能够通过光盘。 然后，记录聚焦过程中聚焦误差信号的最大振幅。 之后，检查记录在聚焦路线中的聚焦误差信号的最大振幅是否相等。 如果最大幅度相等，则将光盘识别为双层盘。 如果最大幅度不相等，则将光盘识别为单层光盘。

公开(公告)号：US07974161B2

公开(公告)日：2011-07-05

申请号：US12370058

申请日：2009-02-12

申请人： Chia-Hsing Hsu ,  Yi-Long Hsiao

发明人： Chia-Hsing Hsu ,  Yi-Long Hsiao

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/13

摘要： A method of adjusting gain balance of an optical transducer includes the following steps. First, two external gains are predetermined. Next, the projection position of a reflection spot is adjusted toward one side of the optical transducer, and the current output values of the optical transducer each corresponding to one of the external gains are measured, respectively. Next, the projection position of the reflection spot is adjusted toward the other side of the optical transducer, and the current output values of the optical transducer each corresponding to one of the external gains are measured, respectively. Then, a gain balance value of the optical transducer is adjusted, and is set as the external gain. Next, the projection position of the reflection spot is adjusted. Finally, the projection position of the reflection spot, where the current output value of the transducer is equal to 0, is locked to complete the adjustment rapidly.

摘要翻译： 调整光学换能器的增益平衡的方法包括以下步骤。 首先，预先确定两个外部增益。 接下来，将反射光斑的投影位置调整到光学换能器的一侧，并分别测量每个对应于一个外部增益的光学换能器的电流输出值。 接下来，将反射光斑的投影位置朝向光学换能器的另一侧调整，并且分别测量各自对应于一个外部增益的光学换能器的电流输出值。 然后，调整光学换能器的增益平衡值，并将其设置为外部增益。 接下来，调整反射点的投影位置。 最后，传感器的当前输出值等于0的反射点的投影位置被锁定以快速完成调整。

公开(公告)号：US20090285060A1

公开(公告)日：2009-11-19

申请号：US12370058

申请日：2009-02-12

申请人： Chia-Hsing Hsu ,  Yi-Long Hsiao

发明人： Chia-Hsing Hsu ,  Yi-Long Hsiao

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/13

摘要： A method of adjusting gain balance of an optical transducer includes the following steps. First, two external gains are predetermined. Next, the projection position of a reflection spot is adjusted toward one side of the optical transducer, and the current output values of the optical transducer each corresponding to one of the external gains are measured, respectively, Next, the projection position of the reflection spot is adjusted toward the other side of the optical transducer, and the current output values of the optical transducer each corresponding to one of the external gains are measured, respectively. Then, a gain balance value of the optical transducer is adjusted, and is set as the external gain. Next, the projection position of the reflection spot is adjusted. Finally, the projection position of the reflection spot, where the current output value of the transducer is equal to 0, is locked to complete the adjustment rapidly.

摘要翻译： 调整光学变换器的增益平衡的方法包括以下步骤。 首先，预先确定两个外部增益。 接下来，将反射光斑的投射位置调整到光学变换器的一侧，分别测量各自对应于外部增益之一的光学换能器的电流输出值。接下来，测量反射光斑的投影位置 被调整到光学换能器的另一侧，并且分别测量每个对应于一个外部增益的光学换能器的电流输出值。 然后，调整光学换能器的增益平衡值，并将其设置为外部增益。 接下来，调整反射点的投影位置。 最后，传感器的当前输出值等于0的反射点的投影位置被锁定以快速完成调整。

公开(公告)号：US20090135697A1

公开(公告)日：2009-05-28

申请号：US12247240

申请日：2008-10-08

申请人： Chia-Hsing Hsu ,  Yi-Long Hsiao

发明人： Chia-Hsing Hsu ,  Yi-Long Hsiao

IPC分类号： G11B27/36

CPC分类号： G11B19/125

摘要： The invention is to provide a method for distinguishing optical discs, which first locks a focus on a data layer of an optical disc to cross the grooves and the lands of the optical disc, then starts testing and counting the time for testing, records a detected RF signal, checks if the time for testing reaches a predetermined time, continues locking the focus on the data layer to test if it has not, finds out the maximum intensity of the detected RF signal among the recorded RF signals, and compares the maximum intensity of the detected RF signal with the parameters regarding formats of optical discs previously stored in order to correctly distinguish the optical disc.

摘要翻译： 本发明是提供一种用于区分光盘的方法，其首先将焦点锁定在光盘的数据层上以横穿光盘的凹槽和平台，然后开始测试和计数测试时间，记录检测到的 RF信号，检查测试时间是否达到预定时间，继续将焦点锁定在数据层上以测试是否没有，发现记录的RF信号中检测到的RF信号的最大强度，并比较最大强度 检测到的RF信号具有关于先前存储的光盘的格式的参数，以便正确地区分光盘。

公开(公告)号：US20090135867A1

公开(公告)日：2009-05-28

申请号：US12289120

申请日：2008-10-21

申请人： Chia-Hsing Hsu ,  Yi-Long Hsiao

发明人： Chia-Hsing Hsu ,  Yi-Long Hsiao

IPC分类号： G21K5/00

CPC分类号： G11B7/126

摘要： A temperature compensation method for laser power in an optical disk drive is provided. A predetermined linear-fitting power curve and a temperature-changing slope curve are previously stored in the optical disk drive. Firstly, an output of laser power is controlled according to the predetermined linear-fitting power curve to read/write data. Next, the temperature of the disk drive is detected. Then, whether the temperature has changed is checked. If the temperature has not changed, the method continues to read/write data. If the temperature has changed, the method obtains a relative slope from the slope curve by use of the temperature of the disk drive, displaces the slope of the predetermined linear-fitting power curve with the obtained relative slope to form a new linear-fitting power curve for replacing the predetermined linear-fitting power curve, and controls the output of laser power.

摘要翻译： 提供了一种用于光盘驱动器中的激光功率的温度补偿方法。 在光盘驱动器中预先存储预定的线性拟合功率曲线和温度变化斜率曲线。 首先，根据预定的线性拟合功率曲线来控制激光功率的输出以读/写数据。 接下来，检测磁盘驱动器的温度。 然后，检查温度是否变化。 如果温度没有变化，则该方法继续读/写数据。 如果温度变化，则该方法通过使用盘驱动器的温度从斜率曲线获得相对斜率，以所获得的相对斜率置换预定线性拟合功率曲线的斜率，以形成新的线性拟合功率 用于替换预定的线性拟合功率曲线的曲线，并控制激光功率的输出。

公开(公告)号：US20090135865A1

公开(公告)日：2009-05-28

申请号：US12289124

申请日：2008-10-21

申请人： Chia-Hsing Hsu ,  Yi-Long Hsiao

发明人： Chia-Hsing Hsu ,  Yi-Long Hsiao

IPC分类号： H01S3/13

CPC分类号： G11B7/1263 ,  G11B7/126 ,  G11B7/1267

摘要： A method for controlling laser power of an optical disk drive is provided. Firstly, a power-controlling curve of a first loop circuit is formed according to a real test. Next, two test points are selected from the power-controlling curve. Then, the voltage outputted from a second loop circuit is adjusted. After that, whether the generated internal power signal is equal to the internal power signal of the two test points is checked. Afterwards, the voltage outputted from the second loop circuit is recorded. Then, the gain of the two loop circuits under the same change of the internal power signal is calculated. Lastly, a gained power-controlling curve of the first loop circuit is used as a power-controlling curve of the second loop circuit, such that the power-controlling curve is quickly obtained.

摘要翻译： 提供了一种用于控制光盘驱动器的激光功率的方法。 首先，根据实际测试形成第一回路电路的功率控制曲线。 接下来，从功率控制曲线中选择两个测试点。 然后，调整从第二回路电路输出的电压。 之后，检查所生成的内部功率信号是否等于两个测试点的内部功率信号。 之后，记录从第二回路电路输出的电压。 然后，计算在内部功率信号相同变化下的两个回路电路的增益。 最后，使用第一回路电路的获得的功率控制曲线作为第二回路电路的功率控制曲线，使得快速获得功率控制曲线。

公开(公告)号：US20090135686A1

公开(公告)日：2009-05-28

申请号：US12242715

申请日：2008-09-30

申请人： Chia-Hsing Hsu ,  Yi-Long Hsiao

发明人： Chia-Hsing Hsu ,  Yi-Long Hsiao

IPC分类号： G11B7/00

CPC分类号： G11B7/126 ,  G11B7/1263 ,  H01S5/0683

摘要： A method for compensating the offset of a laser power control circuit, which predetermines a fixed reference voltage, adjusts the offset voltage by adding the reference voltage, outputs a summed voltage to a pick-up head, tries to ignite the pick-up head, detects the voltage of the pick-up head, checks whether the detected voltage rises to a specific threshold voltage, continues adjusting the offset voltage if the detected voltage has not risen to the specific threshold voltage and records the offset voltage if the detected voltage has risen to the specific threshold voltage, and configures the offset voltage to be the voltage offset compensation for the laser power control circuit, thereby eliminating feature differences of different pick-up heads of the laser power control circuit.

摘要翻译： 用于补偿预先确定固定参考电压的激光功率控制电路的偏移的方法通过添加参考电压来调整偏移电压，将总和电压输出到拾取头，试图点燃拾取头， 检测拾取头的电压，检查检测到的电压是否上升到特定阈值电压，如果检测到的电压没有上升到特定的阈值电压，则继续调整偏移电压，如果检测到的电压上升，则记录偏移电压 并将偏移电压配置为激光功率控制电路的电压偏移补偿，从而消除激光功率控制电路的不同拾取头的特征差异。

公开(公告)号：US08121159B2

公开(公告)日：2012-02-21

申请号：US12289120

申请日：2008-10-21

申请人： Chia-Hsing Hsu ,  Yi-Long Hsiao

发明人： Chia-Hsing Hsu ,  Yi-Long Hsiao

IPC分类号： H01S3/04

CPC分类号： G11B7/126

摘要： A temperature compensation method for laser power in an optical disk drive is provided. A predetermined linear-fitting power curve and a temperature-changing slope curve are previously stored in the optical disk drive. Firstly, an output of laser power is controlled according to the predetermined linear-fitting power curve to read/write data. Next, the temperature of the disk drive is detected. Then, whether the temperature has changed is checked. If the temperature has not changed, the method continues to read/write data. If the temperature has changed, the method obtains a relative slope from the slope curve by use of the temperature of the disk drive, displaces the slope of the predetermined linear-fitting power curve with the obtained relative slope to form a new linear-fitting power curve for replacing the predetermined linear-fitting power curve, and controls the output of laser power.

摘要翻译： 提供了一种用于光盘驱动器中的激光功率的温度补偿方法。 在光盘驱动器中预先存储预定的线性拟合功率曲线和温度变化斜率曲线。 首先，根据预定的线性拟合功率曲线来控制激光功率的输出以读/写数据。 接下来，检测磁盘驱动器的温度。 然后，检查温度是否变化。 如果温度没有变化，则该方法继续读/写数据。 如果温度变化，则该方法通过使用盘驱动器的温度从斜率曲线获得相对斜率，以所获得的相对斜率置换预定线性拟合功率曲线的斜率，以形成新的线性拟合功率 用于替换预定的线性拟合功率曲线的曲线，并控制激光功率的输出。

公开(公告)号：US07965746B2

公开(公告)日：2011-06-21

申请号：US12289124

申请日：2008-10-21

申请人： Chia-Hsing Hsu ,  Yi-Long Hsiao

发明人： Chia-Hsing Hsu ,  Yi-Long Hsiao

IPC分类号： H01S3/13 ,  H01S3/00

CPC分类号： G11B7/1263 ,  G11B7/126 ,  G11B7/1267

摘要： A method for controlling laser power of an optical disk drive is provided. Firstly, a power-controlling curve of a first loop circuit is formed according to a real test. Next, two test points are selected from the power-controlling curve. Then, the voltage outputted from a second loop circuit is adjusted. After that, whether the generated internal power signal is equal to the internal power signal of the two test points is checked. Afterwards, the voltage outputted from the second loop circuit is recorded. Then, the gain of the two loop circuits under the same change of the internal power signal is calculated. Lastly, a gained power-controlling curve of the first loop circuit is used as a power-controlling curve of the second loop circuit, such that the power-controlling curve is quickly obtained.

摘要翻译： 提供了一种用于控制光盘驱动器的激光功率的方法。 首先，根据实际测试形成第一回路电路的功率控制曲线。 接下来，从功率控制曲线中选择两个测试点。 然后，调整从第二回路电路输出的电压。 之后，检查所生成的内部功率信号是否等于两个测试点的内部功率信号。 之后，记录从第二回路电路输出的电压。 然后，计算在内部功率信号相同变化下的两个回路电路的增益。 最后，使用第一回路电路的获得的功率控制曲线作为第二回路电路的功率控制曲线，使得快速获得功率控制曲线。

公开(公告)号：US20100157767A1

公开(公告)日：2010-06-24

申请号：US12563508

申请日：2009-09-21

申请人： Chia-Hsing HSU ,  Pei-Kang Chen ,  Yi-Long Hsiao

发明人： Chia-Hsing HSU ,  Pei-Kang Chen ,  Yi-Long Hsiao

IPC分类号： G11B20/18

CPC分类号： G11B20/1816 ,  G11B7/1392 ,  G11B2220/2537

摘要： A method for identifying an abnormal disc includes the steps of: forming three testing spherical aberration (SA) values including an SA value of a thinner data layer, a standard SA value and an SA value of a thicker data layer; adjusting to one of the testing SA values; performing focus for a target disc and recording a focus error signal; obtaining a maximum focus error signal and a corresponding testing SA value by way of comparison; and checking whether the corresponding testing SA value is equal to the standard SA value, and identifying the target disc as a normal disc if yes, or otherwise identifying the target disc as the abnormal disc and re-adjusting the SA value to enhance the signal quality.

摘要翻译： 用于识别异常盘的方法包括以下步骤：形成包括较薄数据层的SA值，标准SA值和较厚数据层的SA值的三个测试球面像差（SA）值; 调整为一个测试SA值; 对目标盘执行对焦并记录聚焦误差信号; 通过比较获得最大聚焦误差信号和相应的测试SA值; 并检查对应的测试SA值是否等于标准SA值，并且如果是，则将目标盘识别为普通盘，否则将目标盘识别为异常盘并重新调整SA值以增强信号质量 。