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1. 发明授权

US06721239B2 Optical disc device 有权
标题翻译：光盘设备
公开(公告)号：US06721239B2
公开(公告)日：2004-04-13
申请号：US10005301
申请日：2001-11-08
申请人： Takashi Kishimoto , Yuu Okada , Katsuya Watanabe
发明人： Takashi Kishimoto , Yuu Okada , Katsuya Watanabe
IPC分类号： G11B2108
CPC分类号： G11B7/08529 , G11B7/00718
摘要： An optical disc device with high reliability, which is capable of performing a stable track jumping, is provided. In the optical disc device, a space (time interval) between an address part and the next address part in the address space measuring part 116 inside the DSP 111 is measured, and when the reproduction speed detected in the reproduction speed detection part 117 based on the measuring result is faster than a predetermined reproduction speed, an application timing of an accelerating pulse is switched in the accelerating/decelerating pulse generator 113 such that the application timing of an accelerating pulse or a decelerating pulse is matched with a transit timing in the address part.
摘要翻译：提供了一种具有高可靠性的光盘装置，其能够执行稳定的轨迹跳跃。在光盘装置中，测量DSP111内的地址空间测量部分116中的地址部分和下一个地址部分之间的空间（时间间隔），并且当在再现速度检测部分117中检测到的再现速度基于测量结果比预定再现速度快，在加速/减速脉冲发生器113中切换加速脉冲的施加定时，使得加速脉冲或减速脉冲的施加定时与地址中的传送定时相匹配部分。

2. 发明授权

US06400663B1 Optical disc apparatus 有权
标题翻译：光盘装置
公开(公告)号：US06400663B1
公开(公告)日：2002-06-04
申请号：US09660766
申请日：2000-09-13
申请人： Yuu Okada , Kenji Fujiune , Katsuya Watanabe , Takeharu Yamamoto , Jun Kikuchi
发明人： Yuu Okada , Kenji Fujiune , Katsuya Watanabe , Takeharu Yamamoto , Jun Kikuchi
IPC分类号： G11B700
CPC分类号： G11B7/0946 , G11B7/08511 , G11B7/0945 , G11B7/0948 , G11B2007/0006
摘要： An optical disc apparatus includes: a converging section for converging a light beam and irradiating a rotating information medium with the converged light beam; a moving section for moving the converging section, thereby moving a converging point of the converged light beam in a direction perpendicular to an information surface of the information medium; a converging state detection section for generating a focus servo signal which represents a converging state of the light beam on the information medium based on reflected light or transmitted light of the light beam from the information medium; a focus servo control section for controlling the moving section based on the focus servo signal, so that the light beam reaches a predetermined converging state on the information medium; and a focus pull-in section for turning ON the control by the focus servo control section, wherein the focus pull-in section turns ON the control by the focus servo control section in a case where the focus pull-in section determines that the converging point of the light beam is located in the vicinity of the minimum velocity position on the information medium axial deviation.
摘要翻译：一种光盘装置，包括：聚光部分，用于会聚光束并用会聚光束照射旋转的信息介质; 移动部分，用于移动会聚部分，从而沿着与信息介质的信息表面垂直的方向移动会聚光束的会聚点; 收敛状态检测部分，用于基于来自信息介质的光束的反射光或透射光产生表示光束在信息介质上的会聚状态的聚焦伺服信号; 聚焦伺服控制部分，用于基于聚焦伺服信号控制移动部分，使得光束在信息介质上达到预定的会聚状态; 以及聚焦引入部，用于使聚焦伺服控制部的控制接通，其中，在聚焦引入部确定会聚的情况下，聚焦引入部使聚焦伺服控制部的控制接通光点的位置位于信息介质轴向偏差的最小速度位置附近。

3. 发明授权

US06430119B1 Optical disk drive apparatus capable of searching an optimum target position 失效
标题翻译：能够搜索最佳目标位置的光盘驱动装置
公开(公告)号：US06430119B1
公开(公告)日：2002-08-06
申请号：US09568186
申请日：2000-05-09
申请人： Yuu Okada , Katsuya Watanabe , Tetsuya Shihara , Akihiko Nishioka , Koujiro Okamoto
发明人： Yuu Okada , Katsuya Watanabe , Tetsuya Shihara , Akihiko Nishioka , Koujiro Okamoto
IPC分类号： G11B2108
CPC分类号： G11B21/083 , G11B7/00718 , G11B7/0908 , G11B7/094 , G11B7/0945
摘要： An optical disk apparatus includes a converging section for converging a light beam toward an information carrier; a moving section for moving the light beam converged by the converging section in a direction perpendicular to a surface of the information carrier; a light detector for detecting the light beam reflected by the information carrier; a convergence state detecting section for generating a convergence state signal representing a convergence state of the light beam at a convergence point on the information carrier and outputting a reproduction signal from the information carrier, based on the output from the light detector; a focus controller for driving the moving section to make the convergence state constant based on the convergence state signal and a prescribed target position; a reproduction quality signal detector for detecting a reproduction quality signal representing a quality of the reproduction signal based on the reproduction signal; a reproduction quality signal measuring section for changing the target position and measuring a value of the reproduction quality signal corresponding to each of the changed target positions; a reproduction quality signal characteristic determining section for determining a characteristic of the reproduction quality signal based on the value of the reproduction quality signal corresponding to each of the changed target positions; and a target position searching section for searching for an optimum target position of the focus controller for optimizing the value of the reproduction quality signal based on a determination result of the reproduction quality signal characteristic determining section.
摘要翻译：光盘装置包括会聚光束朝向信息载体的会聚部分; 移动部分，用于沿着垂直于信息载体表面的方向移动由会聚部分会聚的光束; 用于检测由信息载体反射的光束的光检测器; 会聚状态检测部分，用于产生表示信息载体上的会聚点处的光束的会聚状态的会聚状态信号，并根据光检测器的输出从信息载体输出再现信号; 聚焦控制器，用于驱动所述移动部分，以使所述会聚状态基于所述会聚状态信号和规定的目标位置而恒定; 再现质量信号检测器，用于基于再现信号检测表示再现信号的质量的再现质量信号; 再现质量信号测量部分，用于改变目标位置并测量与每个改变的目标位置对应的再现质量信号的值; 再现质量信号特征确定部分，用于基于与每个改变的目标位置对应的再现质量信号的值来确定再现质量信号的特性; 以及目标位置搜索部分，用于基于再现质量信号特性确定部分的确定结果，搜索用于优化再现质量信号的值的焦点控制器的最佳目标位置。

4. 再颁专利

USRE41372E1 Optical disc apparatus 失效
标题翻译：光盘装置
公开(公告)号：USRE41372E1
公开(公告)日：2010-06-08
申请号：US10750527
申请日：2003-12-31
申请人： Yuu Okada , Kenji Fujiune , Katsuya Watanabe , Takeharu Yamamoto , Jun Kikuchi
发明人： Yuu Okada , Kenji Fujiune , Katsuya Watanabe , Takeharu Yamamoto , Jun Kikuchi
IPC分类号： G11B7/00
CPC分类号： G11B7/0946 , G11B7/08511 , G11B7/0945 , G11B7/0948 , G11B2007/0006
摘要： An optical disc apparatus includes: a converging section for converging a light beam and irradiating a rotating information medium with the converged light beam; a moving section for moving the converging section, thereby moving a converging point of the converged light beam in a direction perpendicular to an information surface of the information medium; a converging state detection section for generating a focus servo signal which represents a converging state of the light beam on the information medium based on reflected light or transmitted light of the light beam from the information medium; a focus servo control section for controlling the moving section based on the focus servo signal, so that the light beam reaches a predetermined converging state on the information medium; and a focus pull-in section for turning ON the control by the focus servo control section, wherein the focus pull-in section turns ON the control by the focus servo control section in a case where the focus pull-in section determines that the converging point of the light beam is located in the vicinity of the minimum velocity position on the information medium axial deviation.
摘要翻译：一种光盘装置，包括：聚光部分，用于会聚光束并用会聚光束照射旋转的信息介质; 移动部分，用于移动会聚部分，从而沿着与信息介质的信息表面垂直的方向移动会聚光束的会聚点; 收敛状态检测部分，用于基于来自信息介质的光束的反射光或透射光产生表示光束在信息介质上的会聚状态的聚焦伺服信号; 聚焦伺服控制部分，用于基于聚焦伺服信号控制移动部分，使得光束在信息介质上达到预定的会聚状态; 以及聚焦引入部，用于使聚焦伺服控制部的控制接通，其中，在聚焦引入部确定会聚的情况下，聚焦引入部使聚焦伺服控制部的控制接通光点的位置位于信息介质轴向偏差的最小速度位置附近。

5. 发明授权

US07369469B2 Laser power control apparatus and method, an optical disk apparatus and a recording method 失效
标题翻译：激光功率控制装置和方法，光盘装置和记录方法
公开(公告)号：US07369469B2
公开(公告)日：2008-05-06
申请号：US10931696
申请日：2004-09-01
申请人： Katsuya Watanabe , Yuu Okada , Mamoru Shoji
发明人： Katsuya Watanabe , Yuu Okada , Mamoru Shoji
IPC分类号： G11B5/09
CPC分类号： G11B7/1267 , G11B2007/0013
摘要： A laser power control apparatus is for use in an optical disk apparatus for recording information on an optical disk having at least a first layer and a second layer. The laser power control apparatus includes a power control section for controlling a laser element such that a power of a laser beam approaches a control target level; a change detection section for detecting that a recording condition for the optical disk has been changed; and a power adjustment section for adjusting the power of the laser beam for a recording film of the first layer, in accordance with an output from the change detection section. The power adjustment section determines the power of the laser beam for a recording film of the second layer, based on the power of the laser beam which has been adjusted for the recording film of the first layer.
摘要翻译：激光功率控制装置用于在具有至少第一层和第二层的光盘上记录信息的光盘装置。激光功率控制装置包括：功率控制部，用于控制激光元件，使得激光束的功率接近控制目标水平; 用于检测光盘的记录条件已经改变的改变检测部分; 以及功率调节部，用于根据变化检测部的输出来调整用于第一层的记录膜的激光束的功率。功率调整部基于对第一层的记录膜调整的激光的功率，决定第二层的记录膜的激光束的功率。

6. 发明授权

US07215607B2 Optical disc apparatus, control device and control signal generation circuit 失效
标题翻译：光盘装置，控制装置和控制信号发生电路
公开(公告)号：US07215607B2
公开(公告)日：2007-05-08
申请号：US10659392
申请日：2003-09-11
申请人： Katsuya Watanabe , Yuu Okada
发明人： Katsuya Watanabe , Yuu Okada
IPC分类号： G11B7/00
CPC分类号： G11B7/0941 , G11B7/0901 , G11B7/094
摘要： The optical disc apparatus comprises a convergence lens 12, a light detection device 14 for outputting a first and a second detection signals after detecting reflected optical beam area by area, an actuator 13 for shifting the convergence lens 12, a gain balance circuit 30 for changing a gain balance of the first and the second detection signals, an addition circuit 123 for outputting the addition signal AS after adding the first detection signal to the second detection signal in response to the shift in lens position and the change in gain balance made by the gain balance circuit 30 and the actuator 13, and an addition signal measurement unit 361 and a gain balance adjustment unit 362 operable to obtain the addition signal AS from the addition circuit 123, specify the gain balance that equalizes the detection sensitivities in the respective areas of the light detection device 14 based on the obtained result, and control the gain balance circuit 30 that realizes the determined gain balance.
摘要翻译：光盘装置包括会聚透镜12，用于在检测反射光束区域之后输出第一和第二检测信号的光检测装置14，用于移动会聚透镜12的致动器13，增益平衡电路30，用于改变第一检测信号和第二检测信号的增益平衡;加法电路123，用于响应于透镜位置的偏移和由第一和第二检测信号产生的增益平衡的变化而将第一检测信号加到第二检测信号之后输出相加信号AS 增益平衡电路30和致动器13，以及加法信号测量单元361和用于从加法电路123获得加法信号AS的增益平衡调整单元362，指定均衡各个区域中的检测灵敏度的增益平衡光检测装置14基于获得的结果，并且控制实现所确定的增益的增益平衡电路30 平衡

7. 发明申请

US20050047317A1 Laser power control apparatus and method, an optical disk apparatus and a recording method 失效
标题翻译：激光功率控制装置和方法，光盘装置和记录方法
公开(公告)号：US20050047317A1
公开(公告)日：2005-03-03
申请号：US10931696
申请日：2004-09-01
申请人： Katsuya Watanabe , Yuu Okada , Mamoru Shoji
发明人： Katsuya Watanabe , Yuu Okada , Mamoru Shoji
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/125
CPC分类号： G11B7/1267 , G11B2007/0013
摘要： A laser power control apparatus is for use in an optical disk apparatus for recording information on an optical disk having at least a first layer and a second layer. The laser power control apparatus includes a power control section for controlling a laser element such that a power of a laser beam approaches a control target level; a change detection section for detecting that a recording condition for the optical disk has been changed; and a power adjustment section for adjusting the power of the laser beam for a recording film of the first layer, in accordance with an output from the change detection section. The power adjustment section determines the power of the laser beam for a recording film of the second layer, based on the power of the laser beam which has been adjusted for the recording film of the first layer.
摘要翻译：激光功率控制装置用于在具有至少第一层和第二层的光盘上记录信息的光盘装置。激光功率控制装置包括：功率控制部，用于控制激光元件，使得激光束的功率接近控制目标水平; 用于检测光盘的记录条件已经改变的改变检测部分; 以及功率调节部，用于根据变化检测部的输出来调整用于第一层的记录膜的激光束的功率。功率调整部基于对第一层的记录膜调整的激光的功率，决定第二层的记录膜的激光束的功率。

8. 发明授权

US07668055B2 Recording power determination method and device 有权
标题翻译：记录功率确定方法和装置
公开(公告)号：US07668055B2
公开(公告)日：2010-02-23
申请号：US11369117
申请日：2006-03-06
申请人： Mamoru Shoji , Yasumori Hino , Takahiro Sato , Yuu Okada
发明人： Mamoru Shoji , Yasumori Hino , Takahiro Sato , Yuu Okada
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/00456 , G11B7/0062
摘要： A recording power determination method for determining a recording power of an optical beam for recording data on an information storage medium includes the steps of recording test data on the information storage medium at a plurality of test recording powers; reading the test data recorded at each test recording power, generating a signal, and measuring a modulation factor of the signal corresponding to each test recording power; calculating a product of an n'th power of each test recording power and the corresponding modulation factor, thereby obtaining a plurality of products corresponding to the plurality of test recording powers, where n is a value of exponent and is a real number other than 1; calculating a first recording power based on the correlation between the plurality of test recording powers and the plurality of products; and calculating the recording power based on the first recording power.
摘要翻译：用于确定用于在信息存储介质上记录数据的光束的记录功率的记录功率确定方法包括以多个测试记录功率将测试数据记录在信息存储介质上的步骤; 读取在每个测试记录功率下记录的测试数据，产生信号，并测量与每个测试记录功率对应的信号的调制因子; 计算每个测试记录功率的第n次功率的乘积和相应的调制因子，由此获得与多个测试记录功率对应的多个产品，其中n是指数值，并且是除1之外的实数 ; 基于所述多个测试记录功率与所述多个产品之间的相关性来计算第一记录功率; 以及基于第一记录功率计算记录功率。

9. 发明申请

US20050094506A1 Recording and reproducing method, recording and reproducing device and semiconductor circuit 审中-公开
标题翻译：记录和再现方法，记录和再现装置和半导体电路
公开(公告)号：US20050094506A1
公开(公告)日：2005-05-05
申请号：US10949329
申请日：2004-09-27
申请人： Tetsuya Shihara , Hiromichi Ishibashi , Yuu Okada
发明人： Tetsuya Shihara , Hiromichi Ishibashi , Yuu Okada
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/005 , G11B7/09
CPC分类号： G11B7/0945
摘要： An optical disk information recording and reproducing device (100), which is used for recording and reproducing information on an optical disk (10), includes a system controller (19), a tracking control portion (15), a focus control portion (16) and an aberration correction portion (17). The system controller (19) adjusts a control parameter for recording and reproducing control of the optical disk (10) by using a tracking error signal TE that is detected from an region (30) having a wide track pitch on the optical disk (10). The tracking control portion (15), the focus control portion (16) and the aberration correction portion (17) record and reproduce information on the optical disk (10) by using the adjusted control parameter.
摘要翻译：一种用于在光盘（10）上记录和再现信息的光盘信息记录和再现装置（100）包括系统控制器（19），跟踪控制部分（15），聚焦控制部分（16））和像差校正部（17）。系统控制器（19）通过使用从光盘（10）上具有宽轨道间距的区域（30）检测到的跟踪误差信号TE来调节用于记录和再现光盘（10）的控制参数，。跟踪控制部分（15），聚焦控制部分（16）和像差校正部分（17）通过使用调节的控制参数在光盘（10）上记录和再现信息。

10. 发明授权

US08270258B2 Recording power determination method and device 有权
标题翻译：记录功率确定方法和装置
公开(公告)号：US08270258B2
公开(公告)日：2012-09-18
申请号：US13010222
申请日：2011-01-20
申请人： Mamoru Shoji , Yasumori Hino , Takahiro Sato , Yuu Okada
发明人： Mamoru Shoji , Yasumori Hino , Takahiro Sato , Yuu Okada
IPC分类号： G11B11/00
CPC分类号： G11B7/1267 , G11B7/00456 , G11B7/0062
摘要： A recording power determination method for determining a recording power of an optical beam for recording data on an information storage medium includes the steps of recording test data on the information storage medium at a plurality of test recording powers; reading the test data recorded at each test recording power, generating a signal, and measuring a modulation factor of the signal corresponding to each test recording power; calculating a product of an n'th power of each test recording power and the corresponding modulation factor, thereby obtaining a plurality of products corresponding to the plurality of test recording powers, where n is a value of exponent and is a real number other than 1; calculating a first recording power based on the correlation between the plurality of test recording powers and the plurality of products; and calculating the recording power based on the first recording power.
摘要翻译：用于确定用于在信息存储介质上记录数据的光束的记录功率的记录功率确定方法包括以多个测试记录功率将测试数据记录在信息存储介质上的步骤; 读取在每个测试记录功率下记录的测试数据，产生信号，并测量与每个测试记录功率对应的信号的调制因子; 计算每个测试记录功率的第n次功率的乘积和相应的调制因子，由此获得与多个测试记录功率对应的多个产品，其中n是指数值，并且是除1之外的实数 ; 基于所述多个测试记录功率与所述多个产品之间的相关性来计算第一记录功率; 以及基于第一记录功率计算记录功率。

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