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公开(公告)号：US4639804A
公开(公告)日：1987-01-27
申请号：US475592
申请日：1983-03-15
摘要： A head loading system including a head support mechanism supporting heads for at least reproducing information in juxtaposed relation to a recording medium, and a loading actuator driving the head support mechanism to move the heads toward and away from the recording medium. The loading actuator include motion converting arrangement for converting a linear motion of a solenoid into a rotary motion which is capable of increasing the amount of motion when the linear motion is converted into the rotary motion, thereby enabling the loading actuator to drive the heads with a small amount of linear motion. The motion converting arrangement includes a rotary member connected to a plunger of the solenoid and formed with grooves, a frame juxtaposed against the rotary member and formed with grooves and a bearing fitted between the grooves. The linear motion of the plunger is converted into a rotary motion of the rotary member by the action of the bearing performed in cooperation with the grooves.
摘要翻译： 一种头部装载系统，包括头部支撑机构，其支撑用于至少再现与记录介质并置的信息的信息的头部;以及负载致动器，其驱动头部支撑机构以朝向和离开记录介质移动头部。 装载致动器包括用于将螺线管的线性运动转换成旋转运动的运动转换装置，其能够在线性运动转换成旋转运动时增加运动量，从而使装载致动器能够以 少量线性运动。 运动转换装置包括连接到螺线管的柱塞并且形成有凹槽的旋转构件，与旋转构件并置并且形成有凹槽的框架和装配在凹槽之间的轴承。 通过与凹槽配合执行的轴承的作用，柱塞的直线运动被转换为旋转构件的旋转运动。
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公开(公告)号：US4490662A
公开(公告)日：1984-12-25
申请号：US517813
申请日：1983-07-27
CPC分类号： G11B5/5547 , G11B5/5521 , H02P8/32
摘要： A positioning method and apparatus for precisely positioning a magnetic head on a desired track of a magnetic disc includes stepping motor having a plurality of stationary pole windings adapted to be rotated stepwise, and a mechanism for moving the magnetic head by a rotational movement of the stepping motor. By rotating the stepping motor stepwise by an integral multiple of the number of stationary pole windings of the stepping motor, the magnetic head is moved by one track width of the magnetic disc. By driving the stepping motor by the integral multiple of the number of stationary windings, the magnetic head is positioned by the same stationary pole windings without being affected by an assembling tolerance of the stationary pole windings. The stepping motor may also be driven so as to overrun a desired track by at least one step and then rotated in a reverse direction by the same number of steps so that a positioning error due to forward and reverse rotations of the stepping motor is eliminated.
摘要翻译： 用于将磁头精确地定位在磁盘的期望轨道上的定位方法和装置包括具有适于逐步旋转的多个固定极绕组的步进电机，以及用于通过步进的旋转运动来移动磁头的机构 发动机。 通过使步进电机逐步旋转步进电动机的固定极绕组数量的整数倍，磁头被磁盘的一个磁道宽度移动。 通过将步进电机驱动多个固定绕组的整数倍，磁头由相同的固定极绕组定位，而不受固定极绕组的组装公差的影响。 步进电动机也可以被驱动以使所期望的轨道超过一步，然后以相反的数量的步骤在相反方向上旋转，从而消除了由于步进电动机的正向和反向旋转引起的定位误差。
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公开(公告)号：US3997891A
公开(公告)日：1976-12-14
申请号：US583408
申请日：1975-06-03
CPC分类号： G06F3/0383
摘要： A light pen detection system used for a display system using a cathode ray tube (CRT) in which the operation for detecting the character display position on the CRT face is started when the operation switch of the light pen is turned on, and repeatedly progresses in synchronism with the picture repetition rate, and when a position marker is displayed at the character display position detected through such detecting operation, the operation switch of the light pen is turned off thereby to stop such detecting operation, whereby the character display position detected is obtained as the up-to-date one indicated by the light pen.
摘要翻译： 一种用于使用阴极射线管（CRT）的显示系统的光笔检测系统，其中当光笔的操作开关接通时，开始用于检测CRT面上的字符显示位置的操作，并重复进行 与图像重复率同步，并且当通过这种检测操作检测到的字符显示位置处显示位置标记时，关闭光笔的操作开关，从而停止这种检测操作，由此获得检测到的字符显示位置 作为由光笔指示的最新的。
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公开(公告)号：US3936875A
公开(公告)日：1976-02-03
申请号：US329093
申请日：1973-02-02
申请人： Yukitaka Hayashi
发明人： Yukitaka Hayashi
CPC分类号： G11B5/09
摘要： In a magnetic memory which has thereon 2.sup.q tracks (q = positive integer) and in which each band consists of 2.sup.p sectors (p = positive integer) and the addressing of the magnetic memory is performed by addressing the bands and sectors, each track is designed to contain a plurality of bands so that one band can be constituted by 2.sup.p sectors while each track contains sectors whose number is not equal to 2.sup.p .sup.' (p' = positive integer).
摘要翻译： 在其上具有2q磁道（q =正整数）的磁存储器中，并且其中每个频带由2p扇区（p =正整数）组成，并且通过寻址频带和扇区来执行磁存储器的寻址，每个磁道被设计 以包含多个频带，使得一个频带可以由2p扇区构成，而每个轨道包含不等于2p“（p'=正整数）的扇区。
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公开(公告)号：US4200869A
公开(公告)日：1980-04-29
申请号：US877803
申请日：1978-02-14
摘要： A data display control system for displaying respective data memorized in a plurality of refresh memories which is operable in various display modes including a selective picture display, a superimposed picture display and a shifting picture display. Individual data memorized in respective refresh memories contain each a display control bit adapted to determine whether or not the individual data are to be displayed on the screen. The data display control system reads out from the respective refresh memories a data information to be picture-displayed and only when the contents of a display control bit contained in the data information designate a display, it converts this data information into a video signal for a picture display. The contents of the display control bit are changeable for individual data.
摘要翻译： 一种数据显示控制系统，用于显示存储在多个刷新存储器中的各种数据，该多个刷新存储器可在包括选择性图像显示，叠加图像显示和移位图像显示在内的各种显示模式下操作。 存储在各个刷新存储器中的各个数据包含每个显示控制位，用于确定是否在屏幕上显示各个数据。 数据显示控制系统从相应的刷新存储器读出要被图像显示的数据信息，并且只有当数据信息中包含的显示控制位的内容指定显示时，才将该数据信息转换为视频信号 图片显示。 显示控制位的内容可以针对各个数据进行更改。
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公开(公告)号：US4307393A
公开(公告)日：1981-12-22
申请号：US958991
申请日：1978-11-09
摘要： A cathode ray tube having a viewing screen on which time points represented by a plurality of points spaced from one another with a predetermined time interval are displayed in the raster direction, while display quantities of trend graphs are displayed as functions of the time points in the direction perpendicular to the raster direction by a plurality of points spaced from one another with a predetermined interval. A raster scanning is effected by sweeping the viewing screen with a scanning point whereby the scanning lines thus produced are correlated to the spaced points representing the display quantities. Apparatus stores the display quantities of the trend graph corresponding to the time points, sequentially reads out the display quantities from the memory apparatus in the order of the time points, and compares the display quantities read out from the memory apparatus with a display quantity represented by an instant scan line. The comparison apparatus compares the display quantity read out corresponding to an instant time point and an instant position of the scanning spot of the instant scan line with a display quantity represented by an instant scan line, supplies a video signal to the cathode ray tube when the instant display quantity represented by the instant scan lines lies in a range delimited by the display quantity at the instant time point and the display quantity at the select one time point of the time points immediately preceding and following the instant time point.
摘要翻译： 具有观察屏幕的阴极射线管以其中以预定时间间隔彼此间隔开的多个点表示的时间点被显示在光栅方向上，而趋势图的显示量显示为 通过以预定间隔彼此间隔开的多个点垂直于光栅方向的方向。 通过用扫描点扫描观察屏幕来实现光栅扫描，由此产生的扫描线与表示显示量的间隔点相关。 装置存储与时间点对应的趋势图的显示量，按照时间顺序从存储装置依次读取显示量，并将从存储装置读出的显示量与由 即时扫描线。 比较装置将对应于瞬时时间点的读出的显示量与即时扫描线的扫描点的即时位置与由即时扫描线表示的显示量进行比较，当将视频信号提供给阴极射线管时， 由即时扫描线表示的即时显示量位于由即时时间点的显示量和紧接时刻之后的时刻的选择一个时间点的显示量所界定的范围内。
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