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1. 发明申请

US20080130157A1 Recording Medium, Recording Apparatus And Method, Reproducing Apparatus And Method, And Computer Program 审中-公开
标题翻译：记录介质，记录装置和方法，再现装置和方法以及计算机程序
公开(公告)号：US20080130157A1
公开(公告)日：2008-06-05
申请号：US11667727
申请日：2005-11-17
申请人： Takanori Maeda , Kiyoshi Tateishi , Atsushi Onoe , Kazuo Takahashi
发明人： Takanori Maeda , Kiyoshi Tateishi , Atsushi Onoe , Kazuo Takahashi
IPC分类号： G11B15/18 , G11B5/82
CPC分类号： G11B9/02
摘要： A recording medium (100) on which record information is recorded, wherein the recording medium is displaced relatively with respect to a recording/reproducing device (60) for performing at least one of recording and reproduction of the record information, along each of one direction (X-axis) and another direction (Y-axis), and a track (120) which is a guide in recording the record information is formed such that a relative displacement direction of the recording/reproducing device due to the at least one of recording and reproduction of the record information is distributed substantially uniformly in both the one direction and the another direction.
摘要翻译：一种在其上记录有记录信息的记录介质（100），其中相对于记录/再现装置（60），记录介质相对于每个方向执行记录信息的记录和再现中的至少一个（X轴）和另一方向（Y轴），并且作为记录记录信息的引导件的轨道（120）形成为使得记录/再现装置的相对位移方向由于至少一个记录信息的记录和再现基本均匀地分布在一个方向和另一个方向上。

2. 发明授权

US06970405B2 Optical recording/reproducing apparatus 失效
标题翻译：光记录/重放装置
公开(公告)号：US06970405B2
公开(公告)日：2005-11-29
申请号：US10142958
申请日：2002-05-13
申请人： Kiyoshi Tateishi , Kazuo Takahashi
发明人： Kiyoshi Tateishi , Kazuo Takahashi
IPC分类号： G11B7/004 , G11B7/085 , G11B7/09 , G11B7/125 , G11B7/135 , G11B7/095
CPC分类号： G11B7/13927 , G11B7/08511 , G11B7/0945
摘要： A recording/reproducing apparatus includes an optical pickup having an objective lens, an actuator for operating the lens, an aberration correction element, and a detector for generating a reading signal; a servo control section; a driver for operating the aberration correction element; a generator for generating a focus disturbance signal and an aberration correction disturbance signal having a period different from that of the focus disturbance signal; and a controller for adjusting the focusing position and the aberration correction amount on the basis of a change in a predetermined characteristic value of the reading signal when the disturbance signals are simultaneously applied.
摘要翻译：记录/再现装置包括具有物镜的光学拾取器，用于操作透镜的致动器，像差校正元件和用于产生读取信号的检测器; 伺服控制部; 用于操作像差校正元件的驱动器; 用于产生聚焦干扰信号的发生器和具有与焦点干扰信号的周期不同的周期的像差校正干扰信号; 以及控制器，用于当同时施加干扰信号时，基于读取信号的预定特征值的变化来调整聚焦位置和像差校正量。

3. 发明申请

US20050041541A1 Optical pickup device and apparatus for reading data from optical storage medium 失效
标题翻译：用于从光学存储介质读取数据的光学拾取装置和装置
公开(公告)号：US20050041541A1
公开(公告)日：2005-02-24
申请号：US10921836
申请日：2004-08-20
申请人： Kiyoshi Tateishi , Kazuo Takahashi , Mitsuru Sato , Ichiro Sugai
发明人： Kiyoshi Tateishi , Kazuo Takahashi , Mitsuru Sato , Ichiro Sugai
IPC分类号： G11B7/085 , G11B7/00 , G11B7/09
CPC分类号： G11B7/08511 , G11B7/0945 , G11B2007/0013
摘要： An optical pickup is provided for preventing an objective lens from colliding with an optical recording medium at the stage of initial adjustments. The optical pickup device comprises a servo circuit, and a lens driver for driving an objective lens. In the servo circuit, a drive signal generator supplies the lens driver with one of a first focus drive signal for moving the objective lens in a direction closer to an information recording layer, and a second focus drive signal for moving the objective lens in a direction away from the information recording layer. A controller in a timing generator switches a signal supplied to the lens driver from the first focus drive signal to the second focus drive signal when the level changes by a predetermined range or more in a servo signal which is generated during a period in which the first focus drive signal is being supplied to the lens driver.
摘要翻译：提供了一种用于在初始调整阶段防止物镜与光记录介质碰撞的光拾取器。光学拾取装置包括伺服电路和用于驱动物镜的透镜驱动器。在伺服电路中，驱动信号发生器向透镜驱动器提供用于使物镜沿更靠近信息记录层的方向移动的第一聚焦驱动信号和用于使物镜沿方向移动的第二聚焦驱动信号远离信息记录层。定时发生器中的控制器在第一聚焦驱动信号中提供给镜头驱动器的信号切换到第二聚焦驱动信号，当电平在伺服信号中改变预定范围或更大时，该伺服信号是在第一聚焦驱动信号被提供给镜头驱动器。

4. 发明授权

US5903530A Apparatus for reproducing record information of multiple-layered optical disc 失效
标题翻译：用于再现多层光盘记录信息的装置
公开(公告)号：US5903530A
公开(公告)日：1999-05-11
申请号：US964219
申请日：1997-11-04
申请人： Kiyoshi Tateishi , Kazuo Takahashi
发明人： Kiyoshi Tateishi , Kazuo Takahashi
IPC分类号： G11B7/00 , G11B7/085 , G11B7/09
CPC分类号： G11B7/08511 , G11B7/0945 , G11B2007/0013
摘要： An apparatus for reproducing record information of a multiple-layered optical disc is provided with: an optical pickup having a light source for emitting a reading light, an objective lens for condensing the emitted reading light onto one of the information record layers, a focus actuator for moving the objective lens in a focus direction, and a light-detection device for detecting the reflected reading light and outputting a light detection signal; a focus error generation device for generating a focus error signal; an acceleration/deceleration signal generator for generating and outputting to the focus actuator an acceleration signal to accelerate the objective lens in the focus direction and a deceleration signal to decelerate the objective lens in the focus direction; an inter-layer distance measurement device for measuring an interlayer distance between the information record layers of the multiple-layered optical disc; and a controller for measuring a time duration since the acceleration signal is generated until the focus error signal reaches a predetermined threshold level, and for controlling the acceleration/deceleration signal generator to set a magnitude of the deceleration signal on the basis of the measured inter-layer distance and the measured time duration.
摘要翻译：一种用于再现多层光盘的记录信息的设备设置有：具有用于发射读取光的光源的光学拾取器，用于将发射的读取光聚焦到信息记录层之一的物镜，聚焦致动器用于在聚焦方向上移动物镜;以及光检测装置，用于检测反射的读取光并输出光检测信号; 聚焦误差产生装置，用于产生聚焦误差信号; 加速/减速信号发生器，用于产生并向焦点致动器输出在聚焦方向上加速物镜的加速度信号和减小信号以使物镜在聚焦方向上减速; 层间距离测量装置，用于测量多层光盘的信息记录层之间的层间距离; 以及控制器，用于测量从加速度信号产生直到聚焦误差信号达到预定阈值水平为止的持续时间，并且用于控制加速/减速信号发生器基于所测量的相互间隔来设置减速信号的大小，层距离和测量的持续时间。

5. 发明授权

US07522482B2 Optical pickup device and apparatus for reading data from optical storage medium 失效
标题翻译：用于从光学存储介质读取数据的光学拾取装置和装置
公开(公告)号：US07522482B2
公开(公告)日：2009-04-21
申请号：US10921836
申请日：2004-08-20
申请人： Kiyoshi Tateishi , Kazuo Takahashi , Mitsuru Sato , Ichiro Sugai
发明人： Kiyoshi Tateishi , Kazuo Takahashi , Mitsuru Sato , Ichiro Sugai
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/0945 , G11B2007/0013
摘要： An optical pickup is provided for preventing an objective lens from colliding with an optical recording medium at the stage of initial adjustments. The optical pickup device comprises a servo circuit, and a lens driver for driving an objective lens. In the servo circuit, a drive signal generator supplies the lens driver with one of a first focus drive signal for moving the objective lens in a direction closer to an information recording layer, and a second focus drive signal for moving the objective lens in a direction away from the information recording layer. A controller in a timing generator switches a signal supplied to the lens driver from the first focus drive signal to the second focus drive signal when the level changes by a predetermined range or more in a servo signal which is generated during a period in which the first focus drive signal is being supplied to the lens driver.
摘要翻译：提供了一种用于在初始调整阶段防止物镜与光记录介质碰撞的光拾取器。光学拾取装置包括伺服电路和用于驱动物镜的透镜驱动器。在伺服电路中，驱动信号发生器向透镜驱动器提供用于使物镜沿更靠近信息记录层的方向移动的第一聚焦驱动信号和用于使物镜沿方向移动的第二聚焦驱动信号远离信息记录层。定时发生器中的控制器在第一聚焦驱动信号中提供给镜头驱动器的信号切换到第二聚焦驱动信号，当电平在伺服信号中改变预定范围或更大时，该伺服信号是在第一聚焦驱动信号被提供给镜头驱动器。

6. 发明授权

US06791916B2 Servo control apparatus for optical disc driver 失效
标题翻译：光盘驱动器伺服控制装置
公开(公告)号：US06791916B2
公开(公告)日：2004-09-14
申请号：US09879249
申请日：2001-06-12
申请人： Kiyoshi Tateishi , Kazuo Takahashi
发明人： Kiyoshi Tateishi , Kazuo Takahashi
IPC分类号： G11B700
CPC分类号： G11B7/0948 , G11B20/18
摘要： A servo control apparatus is provided to a stable servo control even when delays occur in detecting defects. Based on reflected light of an optical beam from an optical disc, a defect resulting from dark spots, damages, or others on the optical disc is detected. Immediately before the detection, sample data of a control signal are memorized. The sample data are obtained during a predetermined interval of time that corresponds to a detection delay for the defects, which is dependent on a defect detecting device. Using the memorized sample data, a cancel signal is produced for canceling the influence of the control signal, which is owing to a pseudo error signal obtained during the predetermined interval of time. The cancel signal is outputted as the control signal immediately after the detection of the defect.
摘要翻译：即使在检测到缺陷时发生延迟，也将伺服控制装置提供给稳定的伺服控制。基于来自光盘的光束的反射光，检测到由于光斑上的暗点，损伤或其他的缺陷。在检测之前，存储控制信号的采样数据。在与缺陷检测装置相关的缺陷的检测延迟对应的预定时间间隔内获得采样数据。使用存储的采样数据，产生用于消除由于在预定时间间隔期间获得的伪误差信号而导致的控制信号的影响的消除信号。在检测到缺陷之后立即输出取消信号作为控制信号。

7. 发明授权

US6097777A Phase locked loop circuit 失效
标题翻译：锁相环电路
公开(公告)号：US6097777A
公开(公告)日：2000-08-01
申请号：US879972
申请日：1997-06-20
申请人： Kiyoshi Tateishi , Kazuo Takahashi
发明人： Kiyoshi Tateishi , Kazuo Takahashi
IPC分类号： G11B20/14 , H03L7/08 , H03L7/087 , H03L7/095 , H03L7/107 , H04L7/033 , H04L7/04 , H03D3/24
CPC分类号： H03L7/087 , G11B20/1403 , H03L7/107 , H03L7/095 , H04L7/033 , H04L7/046
摘要： The present invention is intended to reliably achieve a locked PLL even with a short VFO field to correctly perform subsequent reproduction of information data. A PLL circuit of the present invention is supplied with a composite signal composed of a repetitive signal including a pulse train of a constant duty ratio and a random signal including a pulse train allowing variations in duty ratio, where the two signals are arranged in time series. The circuit is provided with a VCO for generating an output signal having a frequency according to a control signal, a PFC for comparing the repetitive signal with the output signal in terms of phase and frequency to generate a phase frequency error signal, a PC for comparing the random signal with the output signal to generate a phase error signal, and loop filters for extracting predetermined band components of the phase frequency error signal and the phase error signal to generate the control signal. Since a PLL is formed including the phase frequency comparator, which has a wide dynamic range and operates at a single lock point, during reading a VFO, a reliable drawing operation is achieved even with a short VFO without miss lock.
摘要翻译：本发明旨在即使使用短VFO场来可靠地实现锁定的PLL，以正确执行信息数据的后续再现。本发明的PLL电路被提供有由包括恒定占空比的脉冲序列的重复信号和包括允许占空比变化的脉冲串的随机信号组成的复合信号，其中两个信号按时间序列排列。该电路设置有用于根据控制信号产生具有频率的输出信号的VCO，用于在相位和频率方面将重复信号与输出信号进行比较以产生相位频率误差信号的PFC，用于比较的PC 具有输出信号的随机信号以产生相位误差信号，以及用于提取相位频率误差信号的预定频带分量的环路滤波器和相位误差信号以产生控制信号。由于在读取VFO期间形成包括具有宽动态范围并且在单个锁定点操作的相位频率比较器的PLL，所以即使使用短VFO也可以实现可靠的绘图操作，而不会错过锁定。

8. 发明申请

US20090086595A1 OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS, OPTICAL INFORMATION REPRODUCING APPARATUS, AND OPTICAL INFORMATION RECORDING/REPRODUCING METHOD 审中-公开
标题翻译：光信息记录/再现装置，光信息再现装置和光信息记录/再现方法
公开(公告)号：US20090086595A1
公开(公告)日：2009-04-02
申请号：US12295563
申请日：2007-03-29
申请人： Kazuo Takahashi , Kiyoshi Tateishi
发明人： Kazuo Takahashi , Kiyoshi Tateishi
IPC分类号： G11B7/00
CPC分类号： G11B7/0901 , G11B7/0065 , G11B7/083 , G11B7/095
摘要： A focal follow-up control circuit performs follow-up control for a focal point on the data recording/reproducing region by reciprocating an object lens provided in a pickup with respect to a rotating direction of a data recording/reproducing region of an optical disk. The focal follow-up control circuit outputs a focal follow-up deviation signal indicative of a deviation between a follow-up central position of the object lens and a movable neutral point to a spindle control circuit. The spindle control circuit carries out feedback control of a number of rotations of a spindle motor so as to bring this focal follow-up deviation signal to zero.
摘要翻译：焦点跟随控制电路通过使设置在拾取器中的物镜相对于光盘的数据记录/再现区域的旋转方向往复运动，来对数据记录/再现区域上的焦点执行后续控制。焦点跟踪控制电路输出表示物镜的跟随中心位置与可动中性点之间偏离主轴控制电路的焦点跟踪偏差信号。主轴控制电路对主轴电动机进行多次转动的反馈控制，使该点跟踪偏差信号为零。

9. 发明授权

US07263040B2 Read/write position controller for optical pickup 失效
标题翻译：读/写位置控制器
公开(公告)号：US07263040B2
公开(公告)日：2007-08-28
申请号：US10845445
申请日：2004-05-14
申请人： Kiyoshi Tateishi , Kazuo Takahashi
发明人： Kiyoshi Tateishi , Kazuo Takahashi
IPC分类号： G11B7/00
CPC分类号： G11B7/08523 , G11B7/0948 , G11B2007/0013
摘要： A controller includes a servo-controller for performing nonlinear and linear control of the read/write position according to an error signal to drive an actuator for driving the pickup; a switch for switching the servo-controller from open-mode to closed-mode according to the error signal; and an adjuster for adjusting the gains of the nonlinear and linear control so that the nonlinear control component is larger than the linear control component at the time of switching and the linear control component is larger than the nonlinear control component after the elapse of a predetermined time from the time of switching.
摘要翻译：控制器包括伺服控制器，用于根据误差信号对读/写位置执行非线性和线性控制，以驱动用于驱动拾取器的致动器; 根据误差信号将伺服控制器从开路模式切换到闭合模式的开关; 以及用于调整非线性和线性控制的增益的调节器，使得非线性控制分量大于切换时的线性控制分量，并且线性控制分量大于经过预定时间之后的非线性控制分量从切换的时候。

10. 发明授权

US06442111B1 Track jump apparatus 失效
标题翻译：轨道跳跃装置
公开(公告)号：US06442111B1
公开(公告)日：2002-08-27
申请号：US09428943
申请日：1999-10-28
申请人： Kazuo Takahashi , Kiyoshi Tateishi
发明人： Kazuo Takahashi , Kiyoshi Tateishi
IPC分类号： G11B700
CPC分类号： G11B7/08541 , G11B7/08517 , G11B7/08529 , G11B7/094
摘要： A track jump apparatus for making an actuator jump in order to move a spot position of a laser beam emitted through an objective lens of the actuator from a current position to an object position corresponding to a desired recording track on a recording medium. The track jump apparatus includes: an actuator driving device that moves the actuator in accordance with a driving signal; a tracking error signal detecting device that detects a tracking error signal on the basis of a change of return light from the recording medium caused by a change of the spot position of the laser beam relative to the recording track; a feed-forward control device that applies an acceleration pulse and a deceleration pulse to the actuator driving device; and a position control device that controls a position of the actuator using a feedback of the driving signal so as to reduce a difference between an object value and the tracking error signal detected by the tracking error signal detecting device, when making the actuator jump in order to move the spot position of the laser beam from the current position to the object position. The feed-forward control device sets a constant speed period during which neither of the acceleration pulse and the deceleration pulse is applied to the actuator driving device between an acceleration period during which the acceleration pulse is applied to the actuator driving device and a deceleration period during which the deceleration pulse is applied to the actuator driving device.
摘要翻译：一种用于使致动器跳跃的轨道跳跃装置，以便将通过致动器的物镜发射的激光束的光点位置从当前位置移动到对应于记录介质上的期望记录轨道的对象位置。轨道跳跃装置包括：致动器驱动装置，其根据驱动信号使致动器移动; 跟踪误差信号检测装置，其基于由激光束的光点位置相对于记录轨道的变化引起的来自记录介质的返回光的变化来检测跟踪误差信号; 向所述致动器驱动装置施加加速度脉冲和减速脉冲的前馈控制装置; 以及位置控制装置，其使用所述驱动信号的反馈来控制所述致动器的位置，以便在使所述致动器按顺序跳跃时减小由所述跟踪误差信号检测装置检测到的对象值和所述跟踪误差信号之间的差异将激光束的光点位置从当前位置移动到物体位置。前馈控制装置设定恒定速度期间，在该恒定速度期间，加速脉冲和减速脉冲都不会在致动器驱动装置施加加速度脉冲的加速期间和致动器驱动装置的加减速期间减速脉冲施加到致动器驱动装置。

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