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1. 发明授权

US07911911B2 Optical disk device and control method 有权
标题翻译：光盘装置及控制方法
公开(公告)号：US07911911B2
公开(公告)日：2011-03-22
申请号：US12415696
申请日：2009-03-31
申请人： Akihiko Doi
发明人： Akihiko Doi
IPC分类号： G11B7/00
CPC分类号： G11B19/041 , G11B7/126 , G11B19/06 , G11B20/10009 , G11B20/10027 , G11B20/10222 , G11B2007/0006 , G11B2220/2537
摘要： According to one embodiment, an optical disk device includes a laser light source that emits laser light to be applied to an optical disk, an automatic power control circuit that controls a laser output of the laser light source, and a control processor that performs a setting data transmission process for the automatic power control circuit. The automatic power control circuit includes an operation setting module that makes an operation setting according to setting data obtained in the setting data transmission process of the control processor and a condition determining module that determines whether an operation setting permission condition containing the number of clocks during a transmission period of the setting data is adequate, and inhibits the operation setting of the operation setting module when the operation setting permission condition is not adequate.
摘要翻译：根据一个实施例，光盘装置包括发射要施加到光盘的激光的激光源，控制激光源的激光输出的自动功率控制电路和执行设定的控制处理器数据传输过程为自动电源控制电路。自动电力控制电路包括：操作设定模块，其根据在控制处理器的设定数据发送处理中获得的设定数据进行动作设定;以及条件判定模块，判断是否包含在设定数据的传送期间是足够的，并且当操作设定许可条件不足时，禁止操作设定模块的动作设定。

2. 发明申请

US20090245056A1 OPTICAL DISK DEVICE AND CONTROL METHOD 审中-公开
标题翻译：光盘设备及控制方法
公开(公告)号：US20090245056A1
公开(公告)日：2009-10-01
申请号：US12415840
申请日：2009-03-31
申请人： Akihiko DOI , Katsumi IZAWA
发明人： Akihiko DOI , Katsumi IZAWA
IPC分类号： G11B20/18
CPC分类号： G11B20/10009 , G11B20/10027 , G11B20/10222 , G11B20/10481
摘要： According to one embodiment, an optical disk device includes a semiconductor laser, a circuit which generates a timing signal to determine a recording pulse timing, a circuit which sets a magnitude of a current for the laser, a circuit which switches the magnitude of the current according to the timing signal, a generation circuit which generates a correction signal from the timing signal to correct response characteristics of a recording pulse, a circuit which synthesizes the correction signal and signals obtained as the switch result to determine the magnitude of the current, and a circuit which feeds the current to the laser according to the synthesis result. The generation circuit extracts high-frequency components from the signals obtained as the switch result and the signal generated by the synthesis circuit, and switches a frequency and a signal gain of each of the components, in accordance with recording pulse conditions.
摘要翻译：根据一个实施例，光盘装置包括半导体激光器，产生定时信号以确定记录脉冲定时的电路，设置激光器电流大小的电路，切换电流大小的电路根据定时信号，产生电路，其从定时信号产生校正信号以校正记录脉冲的响应特性，合成校正信号的电路和作为开关结果获得的信号以确定电流的大小;以及根据合成结果将电流馈送到激光器的电路。生成电路根据作为开关结果获得的信号和由合成电路产生的信号提取高频分量，并且根据记录脉冲条件切换每个分量的频率和信号增益。

3. 发明授权

US5309425A Signal processing circuit for optical disk apparatus 失效
标题翻译：光盘装置信号处理电路
公开(公告)号：US5309425A
公开(公告)日：1994-05-03
申请号：US907126
申请日：1992-07-01
申请人： Mikio Yamamuro , Akihiko Doi
发明人： Mikio Yamamuro , Akihiko Doi
IPC分类号： G11B7/00 , G11B7/005 , G11B11/105 , G11B20/10 , G06F15/00
CPC分类号： G11B20/10009 , G11B11/10515 , G11B11/10597 , G11B7/005
摘要： A signal processing circuit for a disk apparatus with an optical head, which causes photodiodes to detect light acquired by irradiating light from a laser diode on a disk that has an address portion and data portion recorded thereon, and performs photoelectric conversion of the light. A level converter alters the level of the signal detected by each photodiode and provides an output signal. A detector detects a level of the output signal by switching time constants between the address portion and data portion. Using a bias corresponding to the detected level, the levels of signals detected by the photodiodes are changed.
摘要翻译：一种用于具有光学头的光盘装置的信号处理电路，其使得光电二极管检测通过在具有地址部分和数据部分的光盘上照射来自激光二极管的光而获得的光，并执行光的光电转换。电平转换器改变由每个光电二极管检测到的信号的电平，并提供输出信号。检测器通过切换地址部分和数据部分之间的时间常数来检测输出信号的电平。使用对应于检测电平的偏置，改变由光电二极管检测的信号电平。

4. 发明授权

US5306903A Objective lens position detecting system capable of adjusting amounts of radiation 失效
标题翻译：能够调节辐射量的物镜位置检测系统
公开(公告)号：US5306903A
公开(公告)日：1994-04-26
申请号：US909692
申请日：1992-07-07
申请人： Mikio Yamamuro , Akihiko Doi
发明人： Mikio Yamamuro , Akihiko Doi
IPC分类号： G11B7/085 , G02B7/02 , G11B7/09
CPC分类号： G11B7/0901 , G02B7/02
摘要： Disclosed is an objective lens position detecting system which comprises an optical head for holding an objective lens for focusing a light beam on a storage disk having tracks formed thereon, a first detector having a first light-emitting element and a first light-receiving element and provided in a vicinity of the objective lens, unconnected thereto, for detecting the position of the objective lens, a second detector having a second light-emitting element and a second light-receiving element and provided in a vicinity of the objective lens, unconnected thereto, and apart by a predetermined distance from the first detector, for detecting the position of the objective lens, a plate, connected to the objective lens, for reflecting light from the first light-emitting element to the first light-receiving element and reflecting light from the second light-emitting element to the second light-receiving element, whereby the first detector and the second detector detect the position of the objective lens from values of the reflected light, a circuit for outputting a difference between detection signals received from the first detector and the second detector, and a circuit for receiving the detection signals from the first and second detectors and adjusting the amounts of radiation from the first light-emitting element and the second light-emitting element so as to cause the sum of the detection signals to approach a predetermined target value.
摘要翻译：公开了一种物镜位置检测系统，其包括用于保持用于将光束聚焦在其上形成有轨道的存储盘上的物镜的光学头，具有第一发光元件和第一光接收元件的第一检测器，设置在物镜附近，用于检测物镜的位置，具有第二发光元件和第二光接收元件的第二检测器，并且设置在物镜附近，未连接物镜并且与第一检测器隔开预定距离，为了检测物镜的位置，连接到物镜的用于将来自第一发光元件的光反射到第一光接收元件的反射光从第二发光元件到第二光接收元件，由此第一检测器和第二检测器检测ob的位置反射光值的反射镜，用于输出从第一检测器和第二检测器接收的检测信号之间的差的电路，以及用于接收来自第一和第二检测器的检测信号的电路，以及调整来自第一检测器的辐射量第一发光元件和第二发光元件，使得检测信号的和接近预定的目标值。

5. 发明授权

US4900910A System for detecting the position of an objective lens 失效
标题翻译：系统，用于检测物镜的位
公开(公告)号：US4900910A
公开(公告)日：1990-02-13
申请号：US259399
申请日：1988-10-18
申请人： Akihiko Doi
发明人： Akihiko Doi
IPC分类号： G01D5/30 , G11B7/085 , G11B7/09
CPC分类号： G11B7/093 , G01D5/30 , G11B7/09 , G11B7/0946 , G11B7/0948 , G11B7/08517 , G11B7/0901 , G11B7/0908
摘要： In a system for detecting the position of an objective lens which is movably suspended and can be moved along a predetermined direction, a mirror is fixed to the objective lens and is moved with the objective lens along the predetermined directions. A fixed base is so arranged to face the mirror and light emitting element and photodetectors are arranged along the predetermined direction or the fixed base. Cylindrical light shielding member is located between the photodetectors and the element and a differential amplifier is connected to the photodetectors.
摘要翻译：在用于检测可移动地悬挂并可沿着预定方向移动的物镜的位置的系统中，反射镜被固定到物镜并且沿着预定方向与物镜一起移动。固定基座被布置为面向镜子，发光元件和光电探测器沿着预定方向或固定基座布置。圆柱形遮光件位于光电检测器和元件之间，差分放大器连接到光电检测器。

6. 发明授权

US08068393B2 Optical disc apparatus including a divided photodetector 有权
标题翻译：包括分光检测器的光盘装置
公开(公告)号：US08068393B2
公开(公告)日：2011-11-29
申请号：US12537742
申请日：2009-08-07
申请人： Akihiko Doi
发明人： Akihiko Doi
IPC分类号： G11B7/09 , G11B7/00
CPC分类号： G11B7/0906 , G11B2007/0006
摘要： An optical disc apparatus includes an emitter which emits a laser beam to a optical disc, a divided photodetector including a first dived portion and a second dived portion disposed in a light path of the reflected beam from the optical disc, and producing a first photodetector signal and a second photodetector signal, a phase difference detector which produces a phase difference signal from a phase difference between the first and the second photodetector signals, an integrator which produces a integral signal from a integration of the phase difference signal, a tracking controller configure to perform tracking control based on the integral signal, and a limiter which limits a signal to be supplied from the divided photodetector to the phase difference detector or a signal to be supplied from the phase difference detector to the integrator based on a detection status of a signal detected by the dived photodetector.
摘要翻译：一种光盘装置，包括向光盘发射激光束的发射器，包括设置在来自光盘的反射光束的光路中的第一凹陷部分和第二凹陷部分的分割光电检测器，并且产生第一光电检测器信号以及第二光电检测器信号，相位差检测器，其从第一和第二光电检测器信号之间的相位差产生相位差信号;积分器，其从相位差信号的积分产生积分信号，跟踪控制器配置为基于积分信号执行跟踪控制，以及限制器，其将从分割光电检测器提供给相位差检测器的信号或从相位差检测器提供给积分器的信号基于信号的检测状态由分光光度计检测。

7. 发明授权

US07706217B2 Optical disc apparatus 失效
标题翻译：光盘装置
公开(公告)号：US07706217B2
公开(公告)日：2010-04-27
申请号：US11464076
申请日：2006-08-11
申请人： Akihiko Doi
发明人： Akihiko Doi
IPC分类号： G11B7/09
CPC分类号： G11B7/0906 , G11B2007/0006
摘要： An optical disc apparatus includes an emitter which emits a laser beam to a optical disc, a divided photodetector including a first divided portion and a second divided portion disposed in a light path of the reflected beam from the optical disc, and producing a first photodetector signal and a second photodetector signal, a phase difference detector which produces a phase difference signal from a phase difference between the first and the second photodetector signals, an integrator which produces a integral signal from a integration of the phase difference signal, a tracking controller configure to perform tracking control based on the integral signal, and a limiter which limits a signal to be supplied from the divided photodetector to the phase difference detector or a signal to be supplied from the phase difference detector to the integrator based on a detection status of a signal detected by the divided photodetector.
摘要翻译：一种光盘装置，包括向光盘发射激光的发射器，分光检测器，包括设置在来自光盘的反射光束的光路中的第一分割部分和第二分割部分，并产生第一光电检测器信号以及第二光电检测器信号，相位差检测器，其从第一和第二光电检测器信号之间的相位差产生相位差信号;积分器，其从相位差信号的积分产生积分信号，跟踪控制器配置为基于积分信号执行跟踪控制，以及限制器，其将从分割光电检测器提供给相位差检测器的信号或从相位差检测器提供给积分器的信号基于信号的检测状态由分光检测器检测。

8. 发明申请

US20090296546A1 OPTICAL DISC APPARATUS 有权
标题翻译：光盘设备
公开(公告)号：US20090296546A1
公开(公告)日：2009-12-03
申请号：US12537742
申请日：2009-08-07
申请人： Akihiko DOI
发明人： Akihiko DOI
IPC分类号： G11B20/10
CPC分类号： G11B7/0906 , G11B2007/0006
摘要： An optical disc apparatus includes an emitter which emits a laser beam to a optical disc, a divided photodetector including a first dived portion and a second dived portion disposed in a light path of the reflected beam from the optical disc, and producing a first photodetector signal and a second photodetector signal, a phase difference detector which produces a phase difference signal from a phase difference between the first and the second photodetector signals, an integrator which produces a integral signal from a integration of the phase difference signal, a tracking controller configure to perform tracking control based on the integral signal, and a limiter which limits a signal to be supplied from the divided photodetector to the phase difference detector or a signal to be supplied from the phase difference detector to the integrator based on a detection status of a signal detected by the dived photodetector.
摘要翻译：一种光盘装置，包括向光盘发射激光束的发射器，包括设置在来自光盘的反射光束的光路中的第一凹陷部分和第二凹陷部分的分割光电检测器，并且产生第一光电检测器信号以及第二光电检测器信号，相位差检测器，其从第一和第二光电检测器信号之间的相位差产生相位差信号;积分器，其从相位差信号的积分产生积分信号，跟踪控制器配置为基于积分信号执行跟踪控制，以及限制器，其将从分割光电检测器提供给相位差检测器的信号或从相位差检测器提供给积分器的信号基于信号的检测状态由分光光度计检测。

9. 发明申请

US20090245045A1 OPTICAL DISK DEVICE AND CONTROL METHOD 有权
标题翻译：光盘设备及控制方法
公开(公告)号：US20090245045A1
公开(公告)日：2009-10-01
申请号：US12415696
申请日：2009-03-31
申请人： Akihiko Doi
发明人： Akihiko Doi
IPC分类号： G11B7/12
CPC分类号： G11B19/041 , G11B7/126 , G11B19/06 , G11B20/10009 , G11B20/10027 , G11B20/10222 , G11B2007/0006 , G11B2220/2537
摘要： According to one embodiment, an optical disk device includes a laser light source that emits laser light to be applied to an optical disk, an automatic power control circuit that controls a laser output of the laser light source, and a control processor that performs a setting data transmission process for the automatic power control circuit. The automatic power control circuit includes an operation setting module that makes an operation setting according to setting data obtained in the setting data transmission process of the control processor and a condition determining module that determines whether an operation setting permission condition containing the number of clocks during a transmission period of the setting data is adequate, and inhibits the operation setting of the operation setting module when the operation setting permission condition is not adequate.
摘要翻译：根据一个实施例，光盘装置包括发射要施加到光盘的激光的激光源，控制激光源的激光输出的自动功率控制电路和执行设定的控制处理器数据传输过程为自动电源控制电路。所述自动电力控制电路包括：操作设定模块，其根据在所述控制处理器的设定数据发送处理中获得的设定数据进行动作设定;以及条件判定模块，判断是否包含所述控制处理的时钟数的动作设定许可条件设定数据的传送期间是足够的，并且当操作设定许可条件不足时，禁止操作设定模块的动作设定。

10. 发明授权

US06714500B2 Optical disc drive and signal processing method 失效
标题翻译：光盘驱动器和信号处理方法
公开(公告)号：US06714500B2
公开(公告)日：2004-03-30
申请号：US10217631
申请日：2002-08-14
申请人： Akihiko Doi
发明人： Akihiko Doi
IPC分类号： F11B700
CPC分类号： G11B7/126 , G11B7/005 , G11B7/09
摘要： An optical disc drive according to an embodiment of this invention includes a light-receiving section for receiving light, a conversion section for converting the light received by the light-receiving section into an electrical signal, a generation section for generating a slewing rate control signal, and a signal processing section for processing the electrical signal using the slewing rate control signal.
摘要翻译：根据本发明的实施例的光盘驱动器包括：用于接收光的光接收部分，用于将由光接收部分接收的光转换成电信号的转换部分，用于产生回转速率控制信号的生成部分以及信号处理部，其使用所述回转速度控制信号来处理所述电信号。

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