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    • 1. 发明授权
      US3889901A Compact magnetic tape drive with overlapping tape reels lying in different planes 失效
    • Compact magnetic tape drive with overlapping tape reels lying in different planes
    • 紧凑型磁带驱动器，重叠磁带盘位于不同的平面上
    • US3889901A
    • 1975-06-17
    • US46819274
    • 1974-05-08
    • POTTER INSTRUMENT CO INC
    • HOYER SIGURD
    • G11B15/60 , G11B15/28 , G11B15/58
    • G11B15/60
    • Magnetic tape in computer peripheral tape handlers is passed back and forth between two large reels. Typical reels are 10 1/2 inches in diameter. When these reels are mounted side-by-side, the minimum width of the equipment is something over 22 inches. If one reel is slightly tilted, and the second reel underlapped or overlapped with it, a space saving of up to nearly 25 percent can be effected. The tape passing to and from the tilted reel is reoriented with the rest of the system by means of two idler pulleys, one with its axis parallel with the axis of the tilted reel and the other with its axis parallel with the axis of the non-tilted reel and with the projected edge planes of the sides of the reeled tape intersecting at the edges of the tape path as it passes over one of the pulleys.
    • 计算机外围磁带处理程序中的磁带在两个大卷轴之间来回传递。 典型的卷轴直径为101/2英寸。 当这些卷轴并排安装时，设备的最小宽度超过22英寸。 如果一个卷轴稍微倾斜，并且第二卷轴被重叠或重叠，则可以实现高达近25％的节省空间。 穿过倾斜卷轴的胶带经由两个惰轮滑轮系统的其余部分进行重新定向，其一个轴线平行于倾斜卷轴的轴线，另一个轴线平行于非卷轴的轴线， 倾斜的卷轴，并且当卷带的侧面的突出边缘平面经过其中一个滑轮时，在带路径的边缘处相交。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 2. 发明授权
      US3727002A Magnetic method for digitally identifying the location of an applied force 失效
    • Magnetic method for digitally identifying the location of an applied force
    • US3727002A
    • 1973-04-10
    • US3727002D
    • 1971-03-29
    • POTTER INSTRUMENT CO INC
    • PEAR C
    • G06F3/033 , G06F3/041 , H03K17/972 , G08C21/00
    • G06F3/0414 , H03K17/972
    • A method and apparatus for digitally identifying the location of an applied force by utilizing the changes in the properties of a magnetic material in response to the application of a force to the material. In one embodiment, a matrix of similarly-oriented magnetic cores is arranged so that the rows and columns of cores are sequentially driven by a driving signal from a core driver circuit. Sense lines are provided for both the rows and the columns of cores and are arranged so that the row sense lines thread a like number of cores in each row in each of a first direction and a second or opposite direction. The column sense lines are also located so that a like number of cores in each column are threaded in each of a first direction and a second direction. In the absence of a force applied to any one of the cores, the resultant sensed output from the column sense lines as the rows of cores are sequentially driven is substantially zero, since the sensed output produced by the cores threaded by the sense lines in one direction is cancelled by the sensed output produced by the cores threaded by the sense lines in a second direction. When a force is applied to a core, a signal is sensed by the column sense lines during the sequential driving of the rows of cores which cause a control circuit to actuate a counter to indicate the X-coordinate of the location of the force. Similarly, when the columns of cores are being driven, a signal is sensed by the row sense line during the sequential driving of the columns of cores which causes the control circuit to indicate a count on a Y-counter to indicate the Y-coordinate of the force. The respective coordinates thus indicate the location of the force. In an alternative embodiment, the column drive lines are used as sensing lines when the rows of cores are being sequentially driven, while the row drive lines are used as the sense lines when the columns of cores are sequentially driven. Circuit modifications to effect a reduction in the number of leads threading each core for the alternative embodiment are thus disclosed.
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 3. 发明授权
      US3678847A Hammer firing system for a high speed printer 失效
    • Hammer firing system for a high speed printer
    • 用于高速打印机的HAMMER FIRING系统
    • US3678847A
    • 1972-07-25
    • US3678847D
    • 1970-06-25
    • POTTER INSTRUMENT CO INC
    • PEAR CHARLES B JR , ROSS JOSEPH A
    • B41J2/495 , B41J9/38 , B41J9/42 , H01F7/12
    • B41J9/38 , B41J2/495 , B41J9/42
    • In a high speed printer the hammers are fired by first applying a firing pulse to the hammer and then applying a damping pulse to the hammer as the hammer is rebounding. The damping pulse cancels out the kinetic energy of the hammer and brings it more quickly to rest each time the hammer is fired. The firing circuit comprises a transistor having the hammer coil connected in the collector circuit thereof and a resistance in the emitter circuit thereof. When the hammer is fired the transistor is initially driven into saturation. When the transistor comes out of saturation, negative feedback provided by the resistance in the emitter circuit maintains the firing pulse current constant to the end of the firing pulse.
    • 在高速打印机中，通过首先向锤子施加击发脉冲，然后在锤子反弹时向锤子施加阻尼脉冲，来对锤进行点火。 阻尼脉冲消除了锤子的动能，并且每次锤子被击发时，其更快地保持静止。 点火电路包括具有连接在其集电极电路中的电感线圈和其发射极电路中的电阻的晶体管。 当锤子被击发时，晶体管最初被驱动到饱和状态。 当晶体管脱离饱和时，由发射极电路中的电阻提供的负反馈维持着火脉冲电流恒定到触发脉冲的结束。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 5. 发明授权
      US3564227A Computer and accumulator therefor incorporating push down register 失效
    • Computer and accumulator therefor incorporating push down register
    • 计算机和累加器，其中包含按下寄存器
    • US3564227A
    • 1971-02-16
    • US3564227D
    • 1967-12-14
    • POTTER INSTRUMENT CO INC
    • BOWERS DAN M
    • G06F7/50 , G06F7/505 , G06F9/34 , G06F7/385
    • G06F7/505 , G06F9/34
    • This specification discloses a stored program digital computer, including an accumulator which also functions as a push down storage register. The first stage of the accumulator functions as a conventional accumulator adding or subtracting the binary numbers represented by applied signals from the numbers stored therein leaving the results of the addition or subtraction in the first stage. Also, the results of multiplication operations are stored in the first stage of the accumulator. When a number is transferred to the accumulator from the memory of the computer, it is stored in the first stage of the accumulator and the number that is stored in the first stage is shifted to the second stage of the accumulator. The binary numbers, if any, stored in the second and higher numbered accumulator stages are shifted to the next higher numbered accumulator stage. The binary numbers may be transferred from the first stage of the accumulator to the memory and when such a transfer is made, the numbers stored in the second and higher numbered accumulator stages are shifted to the next lower numbered accumulator stage. In addition, the accumulator can be controlled to add or subtract the contents of the second accumulator stage from the first accumulator stage. When such addition or subtraction takes place, the numbers stored in the third and higher numbered accumulator stages are each shifted to the next lower numbered accumulator stage.
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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