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62 条记录 (耗时 0.012 秒)

    Sweep circuit exhibiting eliminated jitter
    31.
    发明授权
    Sweep circuit exhibiting eliminated jitter 失效
    巡视电路展示消除抖动

    公开(公告)号：US3718825A

    公开(公告)日：1973-02-27

    申请号：US3718825D

    申请日：1970-12-17

    申请人： IWATSU ELECTRIC CO LTD

    发明人： MATSUOKA H

    IPC分类号： G01R13/30 ,  G01R13/32 ,  H03K4/10

    CPC分类号： G01R13/30 ,  G01R13/32

    摘要： A SWEEP CIRCUIT WHEREIN A SIGNAL IS DERIVED AT THE END OF THE HOLD-OFF SIGNAL AND GATED WITH THE SYNCHRONISING PULSES (OR SIGNALS DERIVED THEREFROM) TO PROVIDE AN OUTPUT PULSE WHICH AUTOMATICALLY ADJUSTS THE TIMING OF THE END OF THE HOLD-OFF SIGNAL, THEREBY TO ELIMINATE JITTER AUTOMATICALLY.

    Oscilloscope time base circuits
    32.
    发明授权
    Oscilloscope time base circuits 失效
    OSCILLOSCOPE时基电路

    公开(公告)号：US3699460A

    公开(公告)日：1972-10-17

    申请号：US3699460D

    申请日：1971-03-25

    申请人： SOLARTRON ELECTRONIC GROUP

    发明人： TRASLER PAUL VINCENT MARIE BRI

    IPC分类号： G01R13/24 ,  H03K4/10

    CPC分类号： G01R13/24

    摘要： An oscilloscope time base circuit providing two time bases, both triggered from a single trigger signal. A logic circuit ensures that the time bases trigger alternately: one time base triggers when the trigger signal next reaches a predetermined value after a preset time has elapsed since the other time base triggered, and the other time base triggers when the trigger signal next reaches a predetermined value after both time bases have returned to their starting states. The trigger signal''s predetermined value also alternates so that the time bases each trigger at their own predetermined value.

    摘要翻译： 示波器时基电路提供两个时基，均由单个触发信号触发。 逻辑电路确保时基交替触发：当触发信号从触发另一个时基起经过预设时间之后触发信号接下来达到预定值时触发一个时基，而触发信号下一次触发时触发另一时基 两个时基已经恢复到其起始状态之后的预定值。 触发信号的预定值也交替，使得每个触发的时间以其自己的预定值。

    Apparatus for generating an analogue sawtooth voltage, the slope of which corresponds with the mean slope of a stepped sawtooth voltage
    33.
    发明授权
    Apparatus for generating an analogue sawtooth voltage, the slope of which corresponds with the mean slope of a stepped sawtooth voltage 失效
    用于产生模拟电压的装置，其与斜率的斜率电压相关的斜率

    公开(公告)号：US3676784A

    公开(公告)日：1972-07-11

    申请号：US3676784D

    申请日：1971-01-25

    申请人： HOLLANDSE SIGNAALAPPARATEN BV

    发明人： COMTE CORSTLAAN LE

    IPC分类号： G06G7/28 ,  G06G7/30 ,  H03K4/02 ,  H03M1/66 ,  H03K4/10

    CPC分类号： G06G7/28 ,  G06G7/30 ,  H03K4/026

    摘要： A sawtooth generator provided with a device for generating a digital sawtooth function, said device being connected to a digital-to-analogue converter, also containing an integrator and an error voltage detector to convert differences occuring at discrete moments between the output voltage of the digital-toanalogue converter and the output voltage of the integrator to a control voltage varying in steps, which, fed to the integrator causes the output voltage of the integrator to form an approach of the function to be generated shaped as an angled line.

    摘要翻译： 一种锯齿波发生器，其具有用于产生数字锯齿波功能的装置，所述装置连接到数模转换器，该数模转换器还包含积分器和误差电压检测器，用于转换在数字的输出电压之间的离散时刻发生的差异 模拟转换器和积分器的输出电压达到逐步变化的控制电压，馈送到积分器的输出电压使得积分器的输出电压形成产生成角形线的功能的接近。

    Pulse resolution system
    34.
    发明授权
    Pulse resolution system 失效
    脉冲分辨率系统

    公开(公告)号：US3673559A

    公开(公告)日：1972-06-27

    申请号：US3673559D

    申请日：1968-09-18

    申请人： SCHLUMBERGER TECHNOLOGY CORP

    发明人： SCHWARTZ ROBERT J

    IPC分类号： E21B47/12 ,  G01V5/04 ,  H03K5/00 ,  H03K4/10 ,  H04B3/00

    CPC分类号： H03K5/00 ,  E21B47/12 ,  G01V5/045

    摘要： Apparatus in an earth bore logging system for restoring two or more closely occuring pulses which have become distorted through transmission from subsurface equipment to the surface to the extent that such pulses tend to merge into a single pulse of longer duration. Each pulse from the subsurface signal source is extended in duration to a predetermined pulse width when widely separated from adjacent pulses, and is extended to a greater extent when a successive pulse occurs during the predetermined pulse width period. The pulses are then transmitted to the surface where such extended pulses are amplitude normalized. Each normalized received pulse at the surface is used to generate a pulse having a duration proportional to the duration at which the amplitude of the normalized pulse exceeds a given level. Each of the trigger pulses in turn results in the production of a reference pulse terminating after termination of a trigger pulse of normal duration, representative of a single pulse before transmission. A first output pulse is generated in response to one of the trigger and reference pulses and a second output pulse is generated only upon time coincidence of the trigger pulse and termination of the reference pulse. The widths of the reference pulses may be automatically adjusted according to variations in the average widths of the trigger pulses.

    摘要翻译： 用于恢复两个或更多个紧密发生的脉冲的装置，这些脉冲已经通过从地下设备到表面的传输变形到这样的脉冲倾向于合并成更长持续时间的单个脉冲的程度。 当与相邻脉冲广泛分离时，来自地下信号源的每个脉冲的持续时间延长到预定的脉冲宽度，并且在预定的脉冲宽度周期期间发生连续的脉冲时，延伸到更大的程度。 然后将脉冲传输到这样的扩展脉冲被振幅归一化的表面。 表面处的每个归一化的接收脉冲被用于产生具有与归一化脉冲的振幅超过给定电平的持续时间成比例的持续时间的脉冲。 触发脉冲中的每一个又导致产生在正常持续时间的触发脉冲终止之后终止的参考脉冲，表示传输之前的单个脉冲。 响应于触发和参考脉冲中的一个产生第一输出脉冲，并且仅在触发脉冲的时间一致和参考脉冲的终止时才产生第二输出脉冲。 可以根据触发脉冲的平均宽度的变化来自动调整基准脉冲的宽度。