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公开(公告)号：EP0408310A2
公开(公告)日：1991-01-16
申请号：EP90307526.5
申请日：1990-07-10
发明人： Belser, Karl Arnold , Dounn, Paul Joseph , Henderson, Ian Edward , Kadlec, Ronald James , Roberts, Spencer Donald
IPC分类号： G11B7/085
CPC分类号： G05B19/232 , G05B2219/37313 , G05B2219/42209 , G11B7/08517 , G11B7/08529 , G11B7/08541 , G11B7/0941 , G11B21/085
摘要： A track-seeking system for an optical disk using a velocity control loop with partially-digitized velocity measurement is described in which the sample period of the position error signal is varied in accordance with a velocity profile and a gain of the digital circuits is adjusted, also in accordance with the velocity profile, for providing optimum operation of the digitized portion of the velocity signal generator. In another aspect of the velocity-signal generation, the same digital circuit generates a velocity reference signal and a velocity error signal from a common desired velocity profile set of values.
摘要翻译： 描述了使用具有部分数字化速度测量的速度控制回路的光盘追踪系统，其中位置误差信号的采样周期根据速度分布而变化，并且数字电路的增益被调整， 还根据速度分布，用于提供速度信号发生器的数字化部分的最佳操作。 在速度信号生成的另一方面，相同的数字电路产生速度参考信号和来自公共所需速度分布集值的速度误差信号。
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公开(公告)号：EP0401973B1
公开(公告)日：1995-01-25
申请号：EP90304825.4
申请日：1990-05-03
发明人： Chow, William Wai-Chung , Fennema, Alan August , Fiorino, Benjain Carmel , Henderson, Ian Edward , Kadlec, Ronald James , Roberts, Spencer Donald
CPC分类号： G11B7/08541 , G11B7/08529 , G11B11/10556 , G11B21/088
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公开(公告)号：EP0387224A3
公开(公告)日：1993-03-17
申请号：EP90850092.9
申请日：1990-03-05
CPC分类号： G11B11/10556 , G05B19/232 , G05B19/39 , G05B2219/41457 , G05B2219/42104 , G11B7/08582 , G11B7/0901 , G11B11/10571 , G11B21/085
摘要： A position servo system has a position loop and a velocity loop. The position loop controls the stop-lock condition and provides for movement control within a range about the stop-lock position. The velocity circuit is employed for movements outside of the range of the position servo circuit. When the velocity servo's loop is being used, a compare circuit compares the servo drive signal from the velocity circuit with a signal generated by the position servo loop which is tracking the velocity servo loop. When the compare means finds that the servo drive signals have equal amplitudes, then the velocity servo loop is disconnected from an actuator with the position servo loop then connected to the activation for completing the movement to a desired or target stop-lock position. The above-indicated servo system controls a topping or fine actuator (46) carried on a carriage (34) moved by a coarse actuator (36). The fine and coarse actuators move along the same axis and transverse to movement of any work element, such as a record storage disk (30). The coarse actuator is continuously slaved to the positioning of the topping or fine actuator (46). A relative position sensor (37) disposed intermediate the fine (46) and coarse actuators (36) supplies a position error signal for enabling the coarse actuator (36) to continuously follow the fine actuator (46). Feed forward signals are supplied from the fine actuator (46) to the coarse actuator (36). A preferred embodiment is shown using an optical disk environment.
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公开(公告)号：EP0387224B1
公开(公告)日：1995-07-19
申请号：EP90850092.9
申请日：1990-03-05
CPC分类号： G11B11/10556 , G05B19/232 , G05B19/39 , G05B2219/41457 , G05B2219/42104 , G11B7/08582 , G11B7/0901 , G11B11/10571 , G11B21/085
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5.发明公开Restraint of uncontrolled movement of moving device 失效Bewegung einer mobilen Vorrichtung的Begrenzung der unkontrollierten。
公开(公告)号：EP0461914A2
公开(公告)日：1991-12-18
申请号：EP91305393.0
申请日：1991-06-14
CPC分类号： G11B7/085 , G11B7/0946
摘要： The present invention relates to apparatus for restraining the uncontrolled movement of a moving device comprising main control means (19) for generating control signals for moving the device (11, 12) in a controlled manner, means (25) for detecting uncontrolled movement of the device, and additional control means (25, 29) for generating additional control signals for restraining the uncontrolled movement.
According to the invention the apparatus is characterised in that the additional control means comprises direction detecting means for detecting the direction of the uncontrolled movement, and means (29) for generating braking control signals for applying a braking force to the device in the direction opposite to the direction of the uncontrolled movement in order to stop the uncontrolled movement.摘要翻译： 本发明涉及一种用于限制移动装置的不受控制移动的装置，包括主控制装置（19），用于产生用于以受控的方式移动装置（11,12）的控制信号;用于检测不受控制的运动的装置 装置和用于产生用于限制不受控制的运动的附加控制信号的附加控制装置（25,29）。 根据本发明，该装置的特征在于，附加控制装置包括用于检测不受控制的运动方向的方向检测装置，以及用于产生制动控制信号的装置（29），用于产生制动控制信号，用于沿相反方向向装置施加制动力 不受控制的运动的方向是为了停止不受控制的运动。
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公开(公告)号：EP0408310A3
公开(公告)日：1991-09-25
申请号：EP90307526.5
申请日：1990-07-10
发明人： Belser, Karl Arnold , Dounn, Paul Joseph , Henderson, Ian Edward , Kadlec, Ronald James , Roberts, Spencer Donald
IPC分类号： G11B7/085
CPC分类号： G05B19/232 , G05B2219/37313 , G05B2219/42209 , G11B7/08517 , G11B7/08529 , G11B7/08541 , G11B7/0941 , G11B21/085
摘要： A track-seeking system for an optical disk using a velocity control loop with partially-digitized velocity measurement is described in which the sample period of the position error signal is varied in accordance with a velocity profile and a gain of the digital circuits is adjusted, also in accordance with the velocity profile, for providing optimum operation of the digitized portion of the velocity signal generator. In another aspect of the velocity-signal generation, the same digital circuit generates a velocity reference signal and a velocity error signal from a common desired velocity profile set of values.
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公开(公告)号：EP0387224A2
公开(公告)日：1990-09-12
申请号：EP90850092.9
申请日：1990-03-05
CPC分类号： G11B11/10556 , G05B19/232 , G05B19/39 , G05B2219/41457 , G05B2219/42104 , G11B7/08582 , G11B7/0901 , G11B11/10571 , G11B21/085
摘要： A position servo system has a position loop and a velocity loop. The position loop controls the stop-lock condition and provides for movement control within a range about the stop-lock position. The velocity circuit is employed for movements outside of the range of the position servo circuit. When the velocity servo's loop is being used, a compare circuit compares the servo drive signal from the velocity circuit with a signal generated by the position servo loop which is tracking the velocity servo loop. When the compare means finds that the servo drive signals have equal amplitudes, then the velocity servo loop is disconnected from an actuator with the position servo loop then connected to the activation for completing the movement to a desired or target stop-lock position. The above-indicated servo system controls a topping or fine actuator (46) carried on a carriage (34) moved by a coarse actuator (36). The fine and coarse actuators move along the same axis and transverse to movement of any work element, such as a record storage disk (30). The coarse actuator is continuously slaved to the positioning of the topping or fine actuator (46). A relative position sensor (37) disposed intermediate the fine (46) and coarse actuators (36) supplies a position error signal for enabling the coarse actuator (36) to continuously follow the fine actuator (46). Feed forward signals are supplied from the fine actuator (46) to the coarse actuator (36). A preferred embodiment is shown using an optical disk environment.
摘要翻译： 位置伺服系统具有位置环和速度环。 位置环控制停止锁定状态，并提供在关于停止锁定位置的范围内的移动控制。 速度电路用于位置伺服电路范围以外的运动。 当使用速度伺服回路时，比较电路将来自速度电路的伺服驱动信号与跟踪速度伺服回路的位置伺服回路产生的信号进行比较。 当比较装置发现伺服驱动信号具有相等的幅度时，则速度伺服回路与致动器断开，位置伺服回路然后连接到激活以完成移动到期望的或目标停止锁定位置。 上述伺服系统控制由粗动执行器移动的滑架上承载的顶部或精细致动器。 精细和粗略的致动器沿着相同的轴线移动并且横向于任何工作元件（例如记录存储盘）的移动。 粗致动器连续地从动到顶部或精细致动器的定位。 设置在精细和粗略的致动器之间的相对位置传感器提供位置误差信号，以使粗略致动器能够连续跟随精细致动器。 前馈信号从精细执行器提供给粗调执行器。 使用光盘环境示出了优选实施例。
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公开(公告)号：EP0408310B1
公开(公告)日：1996-01-17
申请号：EP90307526.5
申请日：1990-07-10
发明人： Belser, Karl Arnold , Dounn, Paul Joseph , Henderson, Ian Edward , Kadlec, Ronald James , Roberts, Spencer Donald
IPC分类号： G11B7/085
CPC分类号： G05B19/232 , G05B2219/37313 , G05B2219/42209 , G11B7/08517 , G11B7/08529 , G11B7/08541 , G11B7/0941 , G11B21/085
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公开(公告)号：EP0461914A3
公开(公告)日：1993-02-10
申请号：EP91305393.0
申请日：1991-06-14
CPC分类号： G11B7/085 , G11B7/0946
摘要： The present invention relates to apparatus for restraining the uncontrolled movement of a moving device comprising main control means (19) for generating control signals for moving the device (11, 12) in a controlled manner, means (25) for detecting uncontrolled movement of the device, and additional control means (25, 29) for generating additional control signals for restraining the uncontrolled movement. According to the invention the apparatus is characterised in that the additional control means comprises direction detecting means for detecting the direction of the uncontrolled movement, and means (29) for generating braking control signals for applying a braking force to the device in the direction opposite to the direction of the uncontrolled movement in order to stop the uncontrolled movement.
摘要翻译： 本发明涉及一种用于限制移动装置的不受控制移动的装置，包括主控制装置（19），用于产生用于以受控的方式移动装置（11,12）的控制信号;用于检测不受控制的运动的装置 装置和用于产生用于限制不受控制的运动的附加控制信号的附加控制装置（25,29）。 根据本发明，该装置的特征在于，附加控制装置包括用于检测不受控制的运动方向的方向检测装置，以及用于产生制动控制信号的装置（29），用于产生制动控制信号，用于沿相反方向向装置施加制动力 不受控制的运动的方向是为了停止不受控制的运动。
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公开(公告)号：EP0401973A3
公开(公告)日：1992-02-26
申请号：EP90304825.4
申请日：1990-05-03
发明人： Chow, William Wai-Chung , Fennema, Alan August , Fiorino, Benjain Carmel , Henderson, Ian Edward , Kadlec, Ronald James , Roberts, Spencer Donald
CPC分类号： G11B7/08541 , G11B7/08529 , G11B11/10556 , G11B21/088
摘要： Data Storage apparatus is provided which employs a track-crossing sensor to produce track-crossing signals during track seek. An oscillator is slaved to the sensor for supplying substitute track-crossing pulses in the absence of the sensor providing such pulses or when the radial velocity exceeds a threshold velocity. A velocity profile means alters the oscillator frequency so that the oscillator produces track-crossing pulses in accordance with the profile.
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