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1.发明授权Servo control apparatus, servo control method, optical disc apparatus and video camera recorder 失效伺服控制装置，伺服控制方法，光盘装置和摄像机公开(公告)号：US07660211B2
公开(公告)日：2010-02-09
申请号：US11756945
申请日：2007-06-01
申请人： Yoshiyuki Urakawa , Yuichi Suzuki
发明人： Yoshiyuki Urakawa , Yuichi Suzuki
IPC分类号： G11B7/00
CPC分类号： H04N5/772 , G11B7/08511 , G11B7/0945 , H04N5/85
摘要： A servo control apparatus includes: a drive section that applies a thrust to move a driven object; a storage section that stores a control circuit output initial value; an approaching control section that moves the driven object toward a target position; an error signal detection section that detects an error signal varying according to a difference between the position of the driven object and the target position; a start position calculation section that calculates a start position of a servo control process; an arrival detection section that detects whether the driven object reaches the start position; a control circuit initial value calculation section that calculates a control circuit initial value of a control system and supplies it to a control circuit of the control system; and a servo control starting section that starts the servo control process when detecting that the driven object has reached the start position.
摘要翻译： 伺服控制装置包括：驱动部，其施加用于移动被驱动对象的推力; 存储控制电路输出初始值的存储部; 接近的控制部分，其将被驱动对象朝向目标位置移动; 误差信号检测部，其检测根据被驱动物体的位置与目标位置之间的差异而变化的误差信号; 开始位置计算部，其计算伺服控制处理的开始位置; 检测被驱动体是否到达起始位置的到达检测部; 控制电路初始值计算部，其计算控制系统的控制电路初始值，并将其提供给所述控制系统的控制电路; 以及伺服控制开始部，其在检测到被驱动体已到达起始位置时开始伺服控制处理。
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公开(公告)号：US08411543B2
公开(公告)日：2013-04-02
申请号：US13252505
申请日：2011-10-04
申请人： Yoshiyuki Urakawa
发明人： Yoshiyuki Urakawa
IPC分类号： G11B7/00
CPC分类号： G11B7/0901 , G11B7/0065 , G11B7/0953 , G11B2007/0009
摘要： A recording apparatus including: a light-illuminating/receiving-unit illuminating an optical-disc-recording-medium through a common object-lens with recording-light and ATS-light and receiving reflected-ATS-light; a rotation-driving-unit driving rotation of the medium; a tracking-mechanism driving the lens in a tracking-direction parallel to the radial direction; a tracking-error-signal-generation-unit generating a tracking-error-signal; and a tracking-servo-controller performing tracking-servo-control on the lens based on the tracking-error-signal, wherein the tracking-servo-controller includes: a servo-calculation-unit based on the tracking-error-signal in a feedback-loop as a tracking-servo-loop; and a feed-forward-controller calculating an estimated control-target-value of the tracking-servo-control based on an estimated illumination-spot-position value of the ATS-light obtained in a first-filter-process emulating a transfer-characteristic of the tracking-mechanism on an output of the servo-calculation-unit and a distance between the illumination-spot-positions and applies a control-signal generated in a second-filter-process on the estimated value for suppressing a transfer-characteristic-gain of the tracking-servo-loop to 0 dB or less in the entire band to the tracking-servo-loop.
摘要翻译： 一种记录装置，包括：照明/接收单元，通过具有记录光和ATS光的公共物镜照射光盘记录介质并接收反射ATS光; 驱动所述介质的旋转的旋转驱动单元; 跟踪机构，沿着平行于径向的跟踪方向驱动透镜; 产生跟踪误差信号的跟踪误差信号生成单元; 跟踪伺服控制器基于跟踪误差信号对镜头执行跟踪伺服控制，其中跟踪伺服控制器包括：基于跟踪误差信号的跟踪误差信号的伺服计算单元， 反馈回路作为跟踪伺服回路; 以及前馈控制器，基于在模拟传送特性的第一滤波器处理中获得的ATS光的估计的照明点位置值来计算跟踪伺服控制的估计控制目标值 对所述伺服计算单元的输出和所述照明点位置之间的距离进行所述跟踪机构的跟踪机构，并且对所述估计值施加用于抑制转印特性图像的所述第二滤波处理中产生的控制信号， 跟踪伺服环路的增益在整个频带内达到跟踪伺服回路的0 dB或更小。
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公开(公告)号：US08509041B2
公开(公告)日：2013-08-13
申请号：US13527838
申请日：2012-06-20
IPC分类号： G11B7/00
CPC分类号： G11B7/0901 , G11B2007/0013
摘要： Provided is a recording apparatus including a light irradiation and receiving unit configured to irradiate recording light for performing mark recording to a recording layer and an adjacent servo light for an adjacent track servo onto an optical disc recording medium having the recording layer through a common objective lens, and to receive reflected light from the recording layer of the adjacent servo light, a tracking mechanism configured to drive the objective lens in a tracking direction which is the disc radial direction, a tracking servo signal generation unit configured to obtain a corrected servo error signal as a servo error signal based on a light receiving signal for the adjacent servo light, and to generate a tracking servo signal using the corrected servo error signal, and a tracking driving unit configured to drive the tracking mechanism based on the tracking servo signal.
摘要翻译： 提供了一种记录装置，其包括光照射和接收单元，其被配置为通过公共物镜将用于执行标记记录的记录光照射到具有记录层的光盘记录介质上的记录层和相邻的磁道伺服的相邻伺服光 并且接收来自相邻伺服光的记录层的反射光，跟踪机构，被配置为沿着作为盘径向的跟踪方向驱动物镜;跟踪伺服信号生成单元，被配置为获得校正后的伺服误差信号 作为基于相邻伺服光的光接收信号的伺服误差信号，并且使用校正后的伺服误差信号产生跟踪伺服信号，以及跟踪驱动单元，其被配置为基于跟踪伺服信号来驱动跟踪机构。
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公开(公告)号：US20130010580A1
公开(公告)日：2013-01-10
申请号：US13527838
申请日：2012-06-20
IPC分类号： G11B7/09
CPC分类号： G11B7/0901 , G11B2007/0013
摘要： Provided is a recording apparatus including a light irradiation and receiving unit configured to irradiate recording light for performing mark recording to a recording layer and an adjacent servo light for an adjacent track servo onto an optical disc recording medium having the recording layer through a common objective lens, and to receive reflected light from the recording layer of the adjacent servo light, a tracking mechanism configured to drive the objective lens in a tracking direction which is the disc radial direction, a tracking servo signal generation unit configured to obtain a corrected servo error signal as a servo error signal based on a light receiving signal for the adjacent servo light, and to generate a tracking servo signal using the corrected servo error signal, and a tracking driving unit configured to drive the tracking mechanism based on the tracking servo signal.
摘要翻译： 提供了一种记录装置，其包括光照射和接收单元，其被配置为通过公共物镜将用于执行标记记录的记录光照射到具有记录层的光盘记录介质上的记录层和相邻的磁道伺服的相邻伺服光 并且接收来自相邻伺服光的记录层的反射光，跟踪机构，被配置为沿着作为盘径向的跟踪方向驱动物镜;跟踪伺服信号生成单元，被配置为获得校正后的伺服误差信号 作为基于相邻伺服光的光接收信号的伺服误差信号，并且使用校正后的伺服误差信号产生跟踪伺服信号，以及跟踪驱动单元，其被配置为基于跟踪伺服信号来驱动跟踪机构。
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公开(公告)号：US20120092976A1
公开(公告)日：2012-04-19
申请号：US13252505
申请日：2011-10-04
申请人： Yoshiyuki Urakawa
发明人： Yoshiyuki Urakawa
IPC分类号： G11B7/09
CPC分类号： G11B7/0901 , G11B7/0065 , G11B7/0953 , G11B2007/0009
摘要： A recording apparatus including: a light-illuminating/receiving-unit illuminating an optical-disc-recording-medium through a common object-lens with recording-light and ATS-light and receiving reflected-ATS-light; a rotation-driving-unit driving rotation of the medium; a tracking-mechanism driving the lens in a tracking-direction parallel to the radial direction; a tracking-error-signal-generation-unit generating a tracking-error-signal; and a tracking-servo-controller performing tracking-servo-control on the lens based on the tracking-error-signal, wherein the tracking-servo-controller includes: a servo-calculation-unit based on the tracking-error-signal in a feedback-loop as a tracking-servo-loop; and a feed-forward-controller calculating an estimated control-target-value of the tracking-servo-control based on an estimated illumination-spot-position value of the ATS-light obtained in a first-filter-process emulating a transfer-characteristic of the tracking-mechanism on an output of the servo-calculation-unit and a distance between the illumination-spot-positions and applies a control-signal generated in a second-filter-process on the estimated value for suppressing a transfer-characteristic-gain of the tracking-servo-loop to 0 dB or less in the entire band to the tracking-servo-loop.
摘要翻译： 一种记录装置，包括：照明/接收单元，通过具有记录光和ATS光的公共物镜照射光盘记录介质并接收反射ATS光; 驱动所述介质的旋转的旋转驱动单元; 跟踪机构，沿着平行于径向的跟踪方向驱动透镜; 产生跟踪误差信号的跟踪误差信号生成单元; 跟踪伺服控制器基于跟踪误差信号对镜头执行跟踪伺服控制，其中跟踪伺服控制器包括：基于跟踪误差信号的跟踪误差信号的伺服计算单元， 反馈回路作为跟踪伺服回路; 以及前馈控制器，基于在模拟传送特性的第一滤波器处理中获得的ATS光的估计的照明点位置值来计算跟踪伺服控制的估计控制目标值 对所述伺服计算单元的输出和所述照明点位置之间的距离进行所述跟踪机构的跟踪机构，并且对所述估计值施加用于抑制转印特性图像的所述第二滤波处理中产生的控制信号， 跟踪伺服环路的增益在整个频带内达到跟踪伺服回路的0 dB或更小。
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公开(公告)号：US20110305122A1
公开(公告)日：2011-12-15
申请号：US13150328
申请日：2011-06-01
IPC分类号： G11B7/007
CPC分类号： G11B7/0901 , G11B7/0938 , G11B7/0953 , G11B7/0956 , G11B2007/0009
摘要： A recording device performs recording on an optical disc recording medium having a reference face having a reflection film provided with a position guide, and a recording layer provided at a position of a depth different from that of the reference face and performing information recording by mark forming according to irradiation of light. The recording device includes a light generating and irradiation unit, a recording unit, a tracking mechanism, a first tracking error signal generating unit, a second tracking error signal generating unit, a tracking servo control unit, and a control unit.
摘要翻译： 记录装置在具有设置有位置引导件的反射膜的参考面的光盘记录介质和设置在与参考面的深度不同的位置的记录层上进行记录，并通过标记形成进行信息记录 根据光线照射。 记录装置包括发光和照射单元，记录单元，跟踪机构，第一跟踪误差信号产生单元，第二跟踪误差信号产生单元，跟踪伺服控制单元和控制单元。
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7.发明申请SERVO CONTROL APPARATUS, SERVO CONTROL METHOD, OPTICAL DISC APPARATUS AND VIDEO CAMERA RECORDER 失效伺服控制装置，伺服控制方法，光盘装置和视频摄像机记录仪公开(公告)号：US20070286033A1
公开(公告)日：2007-12-13
申请号：US11756945
申请日：2007-06-01
申请人： Yoshiyuki Urakawa , Yuichi Suzuki
发明人： Yoshiyuki Urakawa , Yuichi Suzuki
CPC分类号： H04N5/772 , G11B7/08511 , G11B7/0945 , H04N5/85
摘要： A servo control apparatus includes: a drive section that applies a thrust to move a driven object; a storage section that stores a control circuit output initial value; an approaching control section that moves the driven object toward a target position; an error signal detection section that detects an error signal varying according to a difference between the position of the driven object and the target position; a start position calculation section that calculates a start position of a servo control process; an arrival detection section that detects whether the driven object reaches the start position; a control circuit initial value calculation section that calculates a control circuit initial value of a control system and supplies it to a control circuit of the control system; and a servo control starting section that starts the servo control process when detecting that the driven object has reached the start position.
摘要翻译： 伺服控制装置包括：驱动部，其施加用于移动被驱动对象的推力; 存储控制电路输出初始值的存储部; 接近的控制部分，其将被驱动对象朝向目标位置移动; 误差信号检测部，其检测根据被驱动物体的位置与目标位置之间的差异而变化的误差信号; 开始位置计算部，其计算伺服控制处理的开始位置; 检测被驱动体是否到达起始位置的到达检测部; 控制电路初始值计算部，其计算控制系统的控制电路初始值，并将其提供给所述控制系统的控制电路; 以及伺服控制开始部，其在检测到被驱动体已到达起始位置时开始伺服控制处理。
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8.发明授权Optical disc reproducing apparatus which employs a binary detector for the outer tracks and a ternary detector for the inner tracks 失效使用外轨道的二进制检测器和内轨道的三元检测器的光盘再现装置
公开(公告)号：US5559774A
公开(公告)日：1996-09-24
申请号：US795724
申请日：1991-11-21
CPC分类号： G11B7/005 , G11B20/10009
摘要： An apparatus reproducing signals recorded on an optical disc rotated at a constant angular velocity. The apparatus employs a binary detector for forming digital data by comparing the reproduced signal with a predetermined threshold level, and a ternary detector for forming reproduced data from two series of digital data detected by comparing the reproduced signal with two different threshold levels of predetermined values. The reproduced data from an outer portion of the disc is detected by the binary detector, while the reproduced data from an inner portion of the disc is detected by the ternary detector. The playback output is selectively switched in response to an address signal of a specific track where the phase margin of the reproduced data detected by the binary detector and the phase margin of the reproduced data detected by the ternary detector becomes substantially equal to each other.
摘要翻译： 记录在以恒定角速度旋转的光盘上的信号的装置。 该装置采用二进制检测器，用于通过将再现信号与预定阈值电平进行比较来形成数字数据;以及三进制检测器，用于通过将再现信号与预定值的两个不同阈值电平进行比较而检测的两个数字数据序列形成再现数据。 来自盘的外部的再现数据由二进制检测器检测，而来自盘的内部的再现数据由三元检测器检测。 响应于由二进制检测器检测到的再现数据的相位裕度和由三元检测器检测到的再现数据的相位裕度彼此基本相等的特定轨道的地址信号来选择性地切换回放输出。
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公开(公告)号：US08780681B2
公开(公告)日：2014-07-15
申请号：US13150328
申请日：2011-06-01
CPC分类号： G11B7/0901 , G11B7/0938 , G11B7/0953 , G11B7/0956 , G11B2007/0009
摘要： A recording device performs recording on an optical disc recording medium having a reference face having a reflection film provided with a position guide, and a recording layer provided at a position of a depth different from that of the reference face and performing information recording by mark forming according to irradiation of light. The recording device includes a light generating and irradiation unit, a recording unit, a tracking mechanism, a first tracking error signal generating unit, a second tracking error signal generating unit, a tracking servo control unit, and a control unit.
摘要翻译： 记录装置在具有设置有位置引导件的反射膜的参考面的光盘记录介质和设置在与参考面的深度不同的位置的记录层上进行记录，并通过标记形成进行信息记录 根据光线照射。 记录装置包括发光和照射单元，记录单元，跟踪机构，第一跟踪误差信号产生单元，第二跟踪误差信号产生单元，跟踪伺服控制单元和控制单元。
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10.发明授权Data reproducing apparatus with means for differentiating a read head output signal and means for three value detection of the result differentiated 失效具有用于区分读取头输出信号的装置的数据再现装置和对结果的三值检测的装置进行区分
公开(公告)号：US5357378A
公开(公告)日：1994-10-18
申请号：US959130
申请日：1992-10-09
申请人： Yoshiyuki Urakawa
发明人： Yoshiyuki Urakawa
CPC分类号： G11B20/1488 , G11B20/10009 , G11B5/09
摘要： A data reproducing apparatus by which data vertically magnetically recorded on a single layer film medium can be detected readily and accurately with a simple construction by means of a ring head. Upon recording, input data are NRZI converted into a recording sequence, which is vertically magnetically recorded onto a single layer film medium. The data are reproduced from the single layer film medium by means of the ring head, and the reproduction signal is differentiated. The differentiation signal is three-value detected to restore the original data.
摘要翻译： 通过环形头的简单结构，可以容易且准确地检测垂直磁记录在单层胶片介质上的数据的数据再现装置。 在记录时，输入数据被NRZI转换成记录序列，其被垂直磁记录到单层胶片介质上。 通过环形头从单层胶片介质再现数据，并且再现信号被区分。 微分信号被检测到三值，以恢复原始数据。
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