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    • 81. 发明授权
    • Optical disc drive and optical disc controller
    • 光盘驱动器和光盘控制器
    • US06925037B2
    • 2005-08-02
    • US10386612
    • 2003-03-12
    • Takashi KishimotoTakeharu YamamotoYoshihiro KandaJun Kikuchi
    • Takashi KishimotoTakeharu YamamotoYoshihiro KandaJun Kikuchi
    • G11B7/085G11B7/00
    • G11B7/08529G11B7/08541
    • An optical disc drive includes: an optical head with an actuator and a photodetector; a tracking driver outputting a drive signal to the actuator; a first tracking error signal generator for generating a first tracking error signal based on an output signal of the photodetector; first and second lens position control sections for respectively outputting first and second lens position control signals to the tracking driver; and a selector for selectively supplying the first tracking error signal to the first or second lens position control section according to a moving velocity of the optical head during a seek operation. The first lens position control signal is obtained by extracting signal components, of which the frequencies are equal to or lower than a predetermined frequency, from the first tracking error signal. The second lens position control signal is obtained by extracting DC components of the first tracking error signal at on-track points thereof.
    • 光盘驱动器包括:具有致动器和光电检测器的光学头; 向所述致动器输出驱动信号的跟踪驱动器; 第一跟踪误差信号发生器,用于基于光电检测器的输出信号产生第一跟踪误差信号; 第一和第二透镜位置控制部分,用于分别向跟踪驱动器输出第一和第二透镜位置控制信号; 以及选择器,用于根据拾取操作期间光头的移动速度,选择性地将第一跟踪误差信号提供给第一或第二透镜位置控制部。 通过从第一跟踪误差信号中提取频率等于或低于预定频率的信号分量来获得第一透镜位置控制信号。 第二透镜位置控制信号通过在其轨迹点上提取第一跟踪误差信号的DC分量来获得。
    • 82. 发明申请
    • Information medium apparatus and information medium starting method
    • 信息媒体设备和信息媒体启动方式
    • US20050117465A1
    • 2005-06-02
    • US10972215
    • 2004-10-22
    • Takashi KishimotoRie TakahashiKatsuya Watanabe
    • Takashi KishimotoRie TakahashiKatsuya Watanabe
    • G11B7/00G11B7/085G11B19/12G11B23/28
    • G11B19/12G11B23/285G11B2007/0006
    • An information medium apparatus for performing at least one of a recording operation and a reproduction operation for the information medium, includes: a determination section for determining whether or not a cartridge for accommodating the information medium has been previously opened; and a control section for performing a start processing procedure corresponding to the information medium. When it is determined that the cartridge has not been previously opened, the control section performs a first start processing procedure for starting the information medium by using a blue laser. When it is determined that the cartridge has been previously opened, the control section determines whether or not the information medium is an information medium for which a start processing procedure is to be performed by using a laser other than the blue laser.
    • 一种用于执行信息介质的记录操作和再现操作中的至少一个的信息介质设备,包括:确定部分,用于确定用于容纳信息介质的盒是否已经被预先打开; 以及用于执行与信息介质相对应的开始处理过程的控制部分。 当确定盒未被先前打开时,控制部分通过使用蓝色激光器执行用于启动信息介质的第一开始处理过程。 当确定盒已经被预先打开时,控制部分确定信息介质是否是通过使用除了蓝色激光器之外的激光器执行开始处理过程的信息介质。
    • 84. 发明授权
    • Optical disk apparatus
    • 检测异常状态的盘装置
    • US06834030B2
    • 2004-12-21
    • US10463368
    • 2003-06-17
    • Takashi KishimotoTakeharu YamamotoKenji FujiuneKatsuya Watanabe
    • Takashi KishimotoTakeharu YamamotoKenji FujiuneKatsuya Watanabe
    • G11B700
    • G11B7/0946G11B7/0901G11B7/0908G11B7/0941G11B7/095G11B7/0953
    • An optical disk apparatus includes: a light irradiator operable to converge a light beam and irradiate an information carrier with the converged light beam; a traverse motor operable to move the light beam in a direction traversing a track formed on a surface of the information carrier; and a tracking controller operable to control the traverse motor to scan the track with the light beam. The tracking controller includes a deviation detector operable to generate a detection signal, a tracking driving circuit operable to generate a driving signal, an integrator operable to integrate a magnitude of a signal corresponding to the driving signal over a predetermined time period and an abnormal state detector operable to detect an abnormal state of the traverse motor based on an output of the integrator.
    • 光盘装置包括:光照射器,其可操作以会聚光束并用会聚光束照射信息载体; 横动马达,其可操作以沿着穿过形成在信息载体的表面上的轨道的方向移动光束; 以及跟踪控制器,其可操作以控制横动马达以光束扫描轨道。 跟踪控制器包括可操作以产生检测信号的偏差检测器,可操作以产生驱动信号的跟踪驱动电路,可用于在预定时间段内对与驱动信号相对应的信号的大小进行积分的积分器和异常状态检测器 可操作以基于积分器的输出来检测横动马达的异常状态。
    • 85. 发明授权
    • Optical disc device
    • 光盘设备
    • US06721239B2
    • 2004-04-13
    • US10005301
    • 2001-11-08
    • Takashi KishimotoYuu OkadaKatsuya Watanabe
    • Takashi KishimotoYuu OkadaKatsuya Watanabe
    • G11B2108
    • G11B7/08529G11B7/00718
    • 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.
    • 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。
    • 86. 发明授权
    • Optical disk apparatus
    • 光盘装置
    • US06714493B1
    • 2004-03-30
    • US09696843
    • 2000-10-26
    • Takashi KishimotoTakeharu YamamotoKenji FujiuneKatsuya Watanabe
    • Takashi KishimotoTakeharu YamamotoKenji FujiuneKatsuya Watanabe
    • G11B700
    • G11B7/0946G11B7/0901G11B7/0908G11B7/0941G11B7/095G11B7/0953
    • An optical disk apparatus of the present invention includes: a light irradiator operable to converge a light beam and to irradiate an information carrier (a recording medium) with the converged light beam; a moving means operable to move a converging point of the light beam in a direction substantially perpendicular to a surface of the information carrier; and a focusing controller operable to control the moving means to place the converging point of the light beam at a predetermined position. The focusing controller includes: a converging state detector operable to generate a detection signal corresponding to a converging state of the light beam on the information carrier; a focusing driving means operable to generate a driving signal for driving the moving means based on the detection signal; an integrator operable to integrate a magnitude of a signal corresponding to the driving signal over a predetermined time period; and an abnormal state detector operable to detect an abnormal state of the moving means based on an output of the integrator.
    • 本发明的光盘装置包括:光照射器,其可操作以会聚光束并照射具有会聚光束的信息载体(记录介质); 移动装置,可操作以沿着基本垂直于信息载体表面的方向移动光束的会聚点; 以及聚焦控制器,其可操作以控制所述移动装置将所述光束的会聚点放置在预定位置。 聚焦控制器包括:会聚状态检测器,用于产生对应于光束在信息载体上的会聚状态的检测信号; 聚焦驱动装置,用于根据检测信号产生用于驱动移动装置的驱动信号; 积分器,其可操作以在预定时间段内积分对应于所述驱动信号的信号的幅度; 以及异常状态检测器,其可操作以基于积分器的输出来检测移动装置的异常状态。
    • 87. 发明授权
    • Optical disc apparatus
    • 光盘装置
    • US06498772B1
    • 2002-12-24
    • US09665278
    • 2000-09-19
    • Kenji FujiuneTakashi KishimotoTakeharu YamamotoKatsuya Watanabe
    • Kenji FujiuneTakashi KishimotoTakeharu YamamotoKatsuya Watanabe
    • G11B700
    • G11B7/0953
    • An optical apparatus includes a generator for generating a sine wave based on a rotating disc-shaped information carrier, and an eccentricity measuring device for measuring gain and phase of a sine wave corresponding to eccentricity of the information carrier based on the driving signal from the tracking control and on the measured rotation frequency. Also included is a waveform shaper for shaping the gain and phase of the sine wave generated by the sine wave generator using the measured gain and phase obtained by the eccentricity measuring device. An eccentricity correction is applied by adding together the sine wave shaped by the waveform shaper and the driving signal from the tracking control to drive an optical beam on a desired track of the rotating disc.
    • 一种光学装置包括:基于旋转的盘形信息载体产生正弦波的发生器,以及用于根据来自跟踪的驱动信号测量与信息载体的偏心相对应的正弦波的增益和相位的偏心测量装置 控制和测量的旋转频率。 还包括波形整形器,用于使用由偏心测量装置获得的测量的增益和相位来对由正弦波发生器产生的正弦波的增益和相位进行整形。 通过将由波形整形器形成的正弦波和来自跟踪控制的驱动信号相加在驱动旋转盘的期望轨道上的光束,来应用偏心校正。
    • 90. 发明授权
    • Illuminating apparatus
    • 照明装置
    • US5613767A
    • 1997-03-25
    • US423701
    • 1995-04-18
    • Kenjiro HamanakaTakashi KishimotoKoichi NishizawaKenichi Nakama
    • Kenjiro HamanakaTakashi KishimotoKoichi NishizawaKenichi Nakama
    • F21S8/00F21V7/09F21V8/00F21V13/04
    • G02B6/0006F21S8/00F21V13/04F21V7/09
    • The improved illuminating apparatus comprises a spheroidal mirror, a light source, a spherical mirror and a condenser lens. The spheroidal mirror has such a shape that it is deficient of a portion that would otherwise reflect light that illuminates any portions other than the object to be illuminated, and that the light from the light source which is directed toward said missing portion is reflected by the spherical mirror positioned on the rear side of said missing portion as seen from the light source and makes another reflection by that part of the spheroidal mirror which faces away said missing portion, thereby illuminating the object. The light source is positioned at the first focal point of the spheroidal mirror in such a way that it faces the mirror, and the spherical mirror is positioned in such a way that its reflecting face lies at the second focal point of the spheroidal mirror. An open window for the exit of light beams is provided in the spherical mirror at a position near the second focal point of the spheroidal mirror, and the condenser lens is provided further ahead of the open window (closer to the object to be illuminated).
    • 改进的照明装置包括球形反射镜,光源,球面镜和聚光透镜。 球形反射镜具有这样的形状,即,否则将反射照射除被照射物体以外的任何部分的光的部分的缺陷,并且来自朝向所述缺失部分的光源的光被反射 球面镜定位在从光源看去的所述缺失部分的后侧,并且通过面向所述缺失部分的球形反射镜的那部分进一步反射,从而照亮物体。 光源位于球状反射镜的第一焦点处,使其面向镜子,并且球面镜以这样的方式定位,使得其反射面位于球镜的第二焦点处。 在球镜的靠近球球镜的第二焦点的位置处设置有用于出射光束的开放窗口,并且聚光透镜设置在开窗(更靠近被照射物体)的前方。