公开(公告)号：US20160027463A1

公开(公告)日：2016-01-28

申请号：US14819796

申请日：2015-08-06

申请人： Optical Devices, LLC

发明人： Ron J. Kadlec

IPC分类号： G11B7/09 ,  G11B20/10

CPC分类号： G11B7/0941 ,  G11B7/08505 ,  G11B7/08529 ,  G11B7/08541 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0917 ,  G11B7/094 ,  G11B7/0945 ,  G11B20/10046 ,  G11B20/18 ,  G11B27/105 ,  G11B27/3027

摘要： A digital servo method for an optical disk drive includes receiving low-pass filtered and gain-adjusted versions of photodetector output signals resulting from an illumination of an optical disk. Versions of the photodetector signals are digitized to produce digital signals. A focus control signal is determined through at least one servo algorithm in a digital signal processor based on a focus error determined from the digital signals. Alternatively, a tracking control signal is determined through at least one servo algorithm in the digital signal processor based on a tracking error determined from the digital signals. An optical disk drive includes an analog-to-digital converter configured to convert low-pass filtered and gain-adjusted versions of photodetector output signals into at least one digital signal and the digital signal processor.

摘要翻译： 用于光盘驱动器的数字伺服方法包括接收由光盘的照明产生的光电检测器输出信号的低通滤波和增益调整版本。 光电检测器信号的版本被数字化以产生数字信号。 基于从数字信号确定的聚焦误差，通过数字信号处理器中的至少一个伺服算法确定聚焦控制信号。 或者，基于从数字信号确定的跟踪误差，通过数字信号处理器中的至少一个伺服算法来确定跟踪控制信号。 光盘驱动器包括模拟 - 数字转换器，其被配置为将光电检测器输出信号的低通滤波和增益调整版本转换成至少一个数字信号和数字信号处理器。

公开(公告)号：US09105281B2

公开(公告)日：2015-08-11

申请号：US13854475

申请日：2013-04-01

申请人： Optical Devices, LLC

发明人： Ron J. Kadlec

IPC分类号： G11B21/08 ,  G11B7/09 ,  G11B7/085

CPC分类号： G11B7/0941 ,  G11B7/08505 ,  G11B7/08529 ,  G11B7/08541 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0917 ,  G11B7/094 ,  G11B7/0945 ,  G11B20/10046 ,  G11B20/18 ,  G11B27/105 ,  G11B27/3027

摘要： A servo processor for an optical disk drive is provided that includes: an analog-to-digital converter for converting versions of photodetector output signals into digital signals; and a digital signal processor configured to receive the digital signals, the digital signal processor being further configured to determine a focus error signal (FES) and a tracking error signal (TES) from the digital signals, the digital signal processor being further configured to process TES and FES through servo algorithms to produce tracking and focus control signals.

摘要翻译： 提供了一种用于光盘驱动器的伺服处理器，其包括：用于将光电检测器输出信号的形式转换成数字信号的模数转换器; 以及数字信号处理器，被配置为接收所述数字信号，所述数字信号处理器还被配置为从所述数字信号确定聚焦误差信号（FES）和跟踪误差信号（TES），所述数字信号处理器还被配置为处理 TES和FES通过伺服算法产生跟踪和聚焦控制信号。

公开(公告)号：US08937854B2

公开(公告)日：2015-01-20

申请号：US14037482

申请日：2013-09-26

申请人： Optical Devices, LLC

发明人： Ron J. Kadlec

IPC分类号： G11B21/08 ,  G11B7/09 ,  G11B7/085

CPC分类号： G11B7/0941 ,  G11B7/08505 ,  G11B7/08529 ,  G11B7/08541 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0917 ,  G11B7/094 ,  G11B7/0945 ,  G11B20/10046 ,  G11B20/18 ,  G11B27/105 ,  G11B27/3027

摘要： A focus servo system for an optical disk drive includes an optical pick-up unit comprising at least one photodetector. At least one analog to digital converter is configured to digitize signals received from the at least one photodetector. At least one processor is configured to execute a digital servo algorithm to process the versions of the digitized signals to calculate a focus error signal (FES) from the versions of the digitized signals and to indicate a focus open condition based on the FES and the versions of the digitized signals.

摘要翻译： 用于光盘驱动器的聚焦伺服系统包括包括至少一个光电检测器的光学拾取单元。 至少一个模/数转换器被配置为数字化从至少一个光电检测器接收的信号。 至少一个处理器被配置为执行数字伺服算法来处理数字化信号的版本以从数字化信号的版本计算聚焦误差信号（FES），并且基于FES和版本来指示焦点打开状态 的数字化信号。

公开(公告)号：US20140029400A1

公开(公告)日：2014-01-30

申请号：US14037482

申请日：2013-09-26

申请人： Optical Devices, LLC

发明人： Ron J. Kadlec

IPC分类号： G11B7/09

CPC分类号： G11B7/0941 ,  G11B7/08505 ,  G11B7/08529 ,  G11B7/08541 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0917 ,  G11B7/094 ,  G11B7/0945 ,  G11B20/10046 ,  G11B20/18 ,  G11B27/105 ,  G11B27/3027

摘要： A focus servo system for an optical disk drive includes an optical pick-up unit comprising at least one photodetector. At least one analog to digital converter is configured to digitize signals received from the at least one photodetector. At least one processor is configured to execute a digital servo algorithm to process the versions of the digitized signals to calculate a focus error signal (FES) from the versions of the digitized signals and to indicate a focus open condition based on the FES and the versions of the digitized signals.

摘要翻译： 用于光盘驱动器的聚焦伺服系统包括包括至少一个光电检测器的光学拾取单元。 至少一个模/数转换器被配置为数字化从至少一个光电检测器接收的信号。 至少一个处理器被配置为执行数字伺服算法来处理数字化信号的版本以从数字化信号的版本计算聚焦误差信号（FES），并且基于FES和版本来指示焦点打开状态 的数字化信号。

公开(公告)号：US20130272105A1

公开(公告)日：2013-10-17

申请号：US13854475

申请日：2013-04-01

申请人： OD Servo Technologies, LLC

发明人： Ron J. Kadlec

IPC分类号： G11B7/09

CPC分类号： G11B7/0941 ,  G11B7/08505 ,  G11B7/08529 ,  G11B7/08541 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0917 ,  G11B7/094 ,  G11B7/0945 ,  G11B20/10046 ,  G11B20/18 ,  G11B27/105 ,  G11B27/3027

摘要： A servo processor for an optical disk drive is provided that includes: an analog-to-digital converter for converting versions of photodetector output signals into digital signals; and a digital signal processor configured to receive the digital signals, the digital signal processor being further configured to determine a focus error signal (FES) and a tracking error signal (TES) from the digital signals, the digital signal processor being further configured to process TES and FES through servo algorithms to produce tracking and focus control signals.

摘要翻译： 提供了一种用于光盘驱动器的伺服处理器，其包括：用于将光电检测器输出信号的形式转换成数字信号的模数转换器; 以及数字信号处理器，被配置为接收所述数字信号，所述数字信号处理器还被配置为从所述数字信号确定聚焦误差信号（FES）和跟踪误差信号（TES），所述数字信号处理器还被配置为处理 TES和FES通过伺服算法产生跟踪和聚焦控制信号。

公开(公告)号：US20110096649A1

公开(公告)日：2011-04-28

申请号：US12987778

申请日：2011-01-10

申请人： Takeyoshi Kataoka ,  Motoyuki Suzuki

发明人： Takeyoshi Kataoka ,  Motoyuki Suzuki

IPC分类号： G11B19/00

CPC分类号： G11B20/10 ,  G11B7/08529 ,  G11B7/0946

摘要： An optical disk device for recording or reproducing an optical disk has: an objective lens for irradiating a laser beam to the optical disk; an actuator for moving the objective lens in the radial direction of the optical disk; and a spindle motor for rotating the optical disk. After the laser beam irradiated to the optical disk passed through a PID portion of the optical disk, the actuator moves the objective lens in the radial direction of the optical disk at a timing corresponding to a rotational speed. Between signals to drive the actuator, an output time of a deceleration signal is set to a predetermined ratio of a time during which an acceleration signal is outputted. While the deceleration signal is outputted, a light spot passes through the PID portion.

摘要翻译： 用于记录或再现光盘的光盘装置具有：用于将激光束照射到光盘的物镜; 用于沿着光盘的径向方向移动物镜的致动器; 以及用于旋转光盘的主轴电机。 在通过光盘的PID部分照射到光盘的激光束之后，致动器在对应于旋转速度的时刻沿着光盘的径向移动物镜。 在驱动致动器的信号之间，减速信号的输出时间被设定为输出加速度信号的时间的预定比率。 当减速信号输出时，光点通过PID部分。

公开(公告)号：US07656758B2

公开(公告)日：2010-02-02

申请号：US10540697

申请日：2003-12-03

申请人： Antonius Hermanus Maria Akkermans

发明人： Antonius Hermanus Maria Akkermans

IPC分类号： G11B7/00

CPC分类号： G11B7/08541 ,  G11B7/08529 ,  G11B7/0857

摘要： A disc drive apparatus (1) for optical discs (2) comprises: a frame (3); a sledge (10) displaceably mounted with respect to said frame (3); a lens actuator (43, 21) displaceably mounted with respect to said sledge (10); and a control unit (90) for generating a control signal (SCL) for the lens actuator (43, 21). The control unit (90) is designed, during a jump operation, to generate said control signal (SCL) for the lens actuator (43, 21) on the basis of an actuator deviation signal (SAS) representing a difference between actuator position (XA) and sledge position (XS).

摘要翻译： 一种用于光盘（2）的盘驱动装置（1），包括：框架（3）; 相对于所述框架（3）可移动地安装的雪橇（10）; 相对于所述雪橇（10）可移动地安装的透镜致动器（43,21）; 以及用于产生用于透镜致动器（43,21）的控制信号（SCL）的控制单元（90）。 控制单元（90）在跳跃操作期间被设计为基于表示致动器位置（XA）之间的差异的致动器偏差信号（SAS）来产生用于镜头致动器（43,21）的所述控制信号（SCL） ）和雪橇位置（XS）。

公开(公告)号：US20090231977A1

公开(公告)日：2009-09-17

申请号：US11658970

申请日：2005-08-16

申请人： Hideo Kato

发明人： Hideo Kato

IPC分类号： G11B7/00

CPC分类号： H04N5/772 ,  G11B7/08529 ,  G11B7/08582 ,  H04N5/85

摘要： An optical disk recording and reproduction apparatus and a method of driving the optical disk recording and reproduction apparatus are provided which are capable of avoiding picking up of sled motor operation sound while a recording operation is being performed while utilizing high-speed accessibility of an optical disk.The optical disk recording and reproduction apparatus (video camera) of the present invention has, as sled movement speeds of an optical pick-up, a first sled movement speed setting value for a reproduction mode, a second sled movement speed setting value for a recording mode, and a third sled movement speed setting value for a transfer mode. A sled movement speed setting value corresponding to an operation mode is selected. The second sled movement speed setting value for a recording mode is set lower than the first sled movement speed setting value for a reproduction mode, and the third sled movement speed setting value for a transfer mode is set higher than the first sled movement speed for a reproduction mode.

摘要翻译： 提供了一种光盘记录和再现装置和驱动光盘记录和再现装置的方法，其能够在利用光盘的高速可访问性的同时执行记录操作时避免拾取电动机操作声音 。 本发明的光盘记录和再现装置（摄像机）作为光学拾取器的滑动移动速度，具有用于再现模式的第一滑动移动速度设定值，用于记录的第二滑动移动速度设定值 模式和用于传送模式的第三滑动移动速度设定值。 选择与操作模式对应的滑动移动速度设定值。 将记录模式的第二滑动移动速度设定值设定为低于再现模式的第一滑动移动速度设定值，将转印模式的第三滑动移动速度设定值设定为高于第一滑动移动速度设定值 再现模式。

公开(公告)号：US20090190449A1

公开(公告)日：2009-07-30

申请号：US12302966

申请日：2007-05-25

申请人： Shin-ichi Yamada ,  Hiroshige Ishibashi

发明人： Shin-ichi Yamada ,  Hiroshige Ishibashi

IPC分类号： G11B7/00

CPC分类号： G11B7/08529 ,  G11B7/0945 ,  G11B2007/0006

摘要： When transferring an optical head in a radial direction of an optical disc, the optical head is initially transferred with a speed profile of a larger acceleration, and when abnormality is detected by an abnormality detection circuit which detects abnormality of a focus control system, the optical head is again transferred with a speed profile of a smaller acceleration, whereby preventing a movable part of a lens actuator from colliding with a fixed part when transferring the optical head in the radial direction of the optical disc, resulting in an optical head transfer device, an integrated circuit for the optical head transfer device, a focusing lens driving device, and an integrated circuit for the focusing lens driving device which can avoid an increase in the start-up time of the device, a reduction in the data reading speed from the optical disc, and the like.

摘要翻译： 当在光盘的径向方向上传送光头时，首先以较大的加速度的速度轮廓来传送光头，并且当检测到聚焦控制系统的异常的异常检测电路检测到异常时，光学头 头部再次以较小的加速度的速度轮廓传递，由此当在光盘的径向方向上传送光学头时，防止透镜致动器的可移动部分与固定部分碰撞，导致光学头转印装置， 用于光头转印装置的集成电路，聚焦透镜驱动装置和用于聚焦透镜驱动装置的集成电路，其可以避免装置启动时间的增加，数据读取速度从 光盘等。

公开(公告)号：US20090086592A1

公开(公告)日：2009-04-02

申请号：US12325669

申请日：2008-12-01

申请人： Yukinobu TADA ,  Yoshinori Ishikawa

发明人： Yukinobu TADA ,  Yoshinori Ishikawa

IPC分类号： G11B7/00

CPC分类号： G11B19/02 ,  G11B7/08511 ,  G11B7/08529 ,  G11B19/12 ,  G11B2007/0013

摘要： A focus jump technique enables focus control on recording layers of a disc in such a manner that its effect is not absorbed by disturbance or a variation in the movement speed of an objective lens. The technique involves monitoring level of a focus error signal and rejecting noise from the error signal. A speed sensor detects movement speed of an objective lens; and a speed control circuit generates a voltage for controlling the objective lens, based on the detected movement speed. Movement speed of the objective lens is detected during focus jump, a corresponding lens drive signal is generated, and an end position is determined from behavior of the error signal immediately before the end of the jump. A focus control is pulled, from a focus point corresponding to one recording layer, into a focus point corresponding to another recording layer forcibly in a stable manner.

摘要翻译： 聚焦跳跃技术使得对盘的记录层进行聚焦控制，使得其效果不被物理干扰或物镜的移动速度的变化所吸收。 该技术涉及监测聚焦误差信号的电平并且从误差信号中抑制噪声。 速度传感器检测物镜的移动速度; 并且速度控制电路基于检测到的移动速度产生用于控制物镜的电压。 在聚焦跳跃期间检测物镜的移动速度，产生相应的镜头驱动信号，并且根据在跳跃结束之前的误差信号的行为来确定结束位置。 从对应于一个记录层的对焦点将焦点控制以稳定的方式被强制地拉入对应于另一记录层的对焦点。