Driving device and servo method with fixed-speed movement
    11.
    发明授权
    Driving device and servo method with fixed-speed movement 失效
    具有定速运动的驱动装置和伺服方式

    公开(公告)号:US06466393B1

    公开(公告)日:2002-10-15

    申请号:US09415511

    申请日:1999-10-08

    申请人: Akira Mitani

    发明人: Akira Mitani

    IPC分类号: G11B2102

    CPC分类号: G11B21/083

    摘要: A driving device for performing a recording and/or reproducing operation for a recording medium, such as a flexible disc, and a fixed speed movement servo method carried out on such driving device. A head for recording and/or reproducing the information for a recording medium is run at a fixed speed using initial servo parameters as certain fixed values to calculate optimum servo parameters. Using the calculated servo parameters, constant speed servo is executed to realize the head running at a fixed speed. This achieves constant speed movement at a certain speed within a pre-set speed range regardless of individual characteristics or occasional posture of the recording/reproducing apparatus.

    摘要翻译: 一种驱动装置,用于执行诸如软盘的记录介质的记录和/或再现操作以及在这种驱动装置上执行的固定速度运动伺服方法。 用于记录和/或再现用于记录介质的信息的磁头以固定速度运行,使用初始伺服参数作为某些固定值来计算最佳伺服参数。 使用计算的伺服参数,执行恒速伺服以实现头部以固定速度运行。 这可以在预设的速度范围内以一定的速度实现恒定的速度运动,而不管记录/再现装置的各个特征或偶尔的姿势如何。

    Servo control apparatus
    12.
    发明授权
    Servo control apparatus 失效
    伺服控制装置

    公开(公告)号:US5077507A

    公开(公告)日:1991-12-31

    申请号:US535681

    申请日:1990-06-11

    IPC分类号: G05B19/23 G05B19/4062

    CPC分类号: G05B19/4062 G05B19/232

    摘要: A servo control apparatus comprises an abnormality detection circuit which calculates a difference between the quantity of rotation of a servo motor from a reference point calculated on the basis of an accumulated value of the position feedback and the quantity of rotation of the servo motor from the reference point counted by a rotational detector, and puts out an absolute position abnormality signal when the calculated difference value exceeds a predetermined value.

    摘要翻译: 伺服控制装置包括:异常检测电路,其根据基于位置反馈的累加值计算的参考点和伺服电动机的旋转量与参考值计算伺服电动机的旋转量之间的差异 通过旋转检测器计数点,并且当所计算的差值超过预定值时,输出绝对位置异常信号。

    Oxime O-ether compounds and fungicides for agricultural and horticultural use
    15.
    发明授权
    Oxime O-ether compounds and fungicides for agricultural and horticultural use 失效
    用于农业和园艺用途的肟类O-醚化合物和杀真菌剂

    公开(公告)号:US06589967B1

    公开(公告)日:2003-07-08

    申请号:US10129646

    申请日:2002-05-06

    IPC分类号: A01N4340

    摘要: The present invention relates to novel oxime O-ether compounds represented by a general formula [I]; wherein R1 represents C1-6 alkyl, C3-6 cycloalkyl, C1-6 alkoxy, etc., m represents an integer of 1 to 4, R2 represents hydrogen atom, C1-6 alkyl, etc., R3 and R4 each independently represents hydrogen atom or C1-6 alkyl, etc., R5 represents hydrogen atom, C1-6 alkyl, etc., R6 represents C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 alkoxy, Halogen atom, etc. and n represents an integer of 1 to 4, and a fungicide for agricultural and horticultural use comprising the compound as the active ingredient.

    摘要翻译: 本发明涉及由通式[I]表示的新型肟O-醚化合物,其中R1表示C1-6烷基,C3-6环烷基,C1-6烷氧基等,m表示1〜4的整数, R 2表示氢原子,C 1-6烷基等,R 3和R 4各自独立地表示氢原子或C 1-6烷基等,R 5表示氢原子,C 1-6烷基等,R 6表示C 1-6烷基, C 2-6烯基,C 2-6炔基,C 1-6烷氧基,卤原子等,n表示1〜4的整数,作为农药用农药用杀真菌剂作为有效成分。

    Recording/reproducing method and apparatus in which head driver is unlocked when medium is loaded and when track position information formulation based on optical signal input has been completed
    16.
    发明授权
    Recording/reproducing method and apparatus in which head driver is unlocked when medium is loaded and when track position information formulation based on optical signal input has been completed 失效
    记录/再现方法和装置,其中当载入媒体时头驱动器被解锁,并且基于光信号输入的轨道位置信息表达已经完成

    公开(公告)号:US06407877B1

    公开(公告)日:2002-06-18

    申请号:US09267312

    申请日:1999-03-12

    申请人: Akira Mitani

    发明人: Akira Mitani

    IPC分类号: G11B5596

    CPC分类号: G11B5/59605 G11B5/5526

    摘要: In a recording/reproducing apparatus, a controller includes a counter responsive to incoming track feed requesting pulses to count the number of the pulses, a head movable state detection unit for detecting a movable state of a magnetic head, and a track feed controller responsive to the count value of the track feed requesting pulse counter to effect track feed of the magnetic head. Detection of the movable state depends on the recording medium being loaded and on completion of the formulation of track position information that is derived from an optical signal that varies as a function of track position. The track feed controller effects track feed of the magnetic head, responsive to the count value of the track feed requesting pulse counter, following detection of the movable state of the magnetic head.

    摘要翻译: 在记录/再现装置中,控制器包括响应于输入轨道馈送请求脉冲以对脉冲数进行计数的计数器,用于检测磁头的可移动状态的磁头可移动状态检测单元以及响应于 跟踪馈送请求脉冲计数器的计数值来实现磁头的跟踪馈送。 可移动状态的检测取决于正在加载的记录介质,并且完成根据作为轨道位置的函数而变化的光信号导出的轨迹位置信息。 在检测到磁头的可移动状态之后,跟踪馈送控制器响应于跟踪馈送请求脉冲计数器的计数值来实现磁头的跟踪馈送。

    Optical disc drive apparatus
    17.
    发明授权
    Optical disc drive apparatus 失效
    光盘驱动装置

    公开(公告)号:US5539711A

    公开(公告)日:1996-07-23

    申请号:US333277

    申请日:1994-11-02

    申请人: Akira Mitani

    发明人: Akira Mitani

    摘要: A reproducing apparatus includes access means for accessing a recording medium so that an information signal is read out from the recording medium, detecting means for counting frequency with which the access means accesses the same recording unit region of the recording medium and detecting a recording unit region of high access frequency, random number generating means for generating a random number, and moving means for moving the access means to other recording unit region on the recording medium in response to a random number generated from the random number generating means after the access means accesses the recording unit region of high access frequency detected by the detecting means.

    摘要翻译: 一种重放装置,包括存取装置,用于存取记录媒体,使信息信号从记录介质中读出;检测装置,用于对访问装置访问记录介质的相同记录单元区域的频率进行计数,并检测记录单元区域 高访问频率的随机数生成装置,以及移动装置,用于在访问装置访问之后响应于从随机数产生装置产生的随机数,将访问装置移动到记录介质上的其他记录单元区域 由检测装置检测的高访问频率的记录单元区域。