Broadband sampling gate circuit capable of eliminating waveform
distortions in track hold mode
    11.
    发明授权
    Broadband sampling gate circuit capable of eliminating waveform distortions in track hold mode 失效
    宽带采样门电路能够消除轨道保持模式下的波形失真

    公开(公告)号:US5206543A

    公开(公告)日:1993-04-27

    申请号:US899292

    申请日:1992-06-16

    摘要: In a sampling gate circuit, a broadband and high-precision sampling gate circuit is realized by further employing first and second equivalent sampling networks which are equal to a sampling operation by a first sampling gate circuit. The first and second equivalent sampling networks compensate for distortions in the signal output by the first sampling gate circuit and allow an input waveform to be reproduced at high precision. The output from the first sampling gate circuit is input to a positive terminal of a differential amplifier. The outputs from the first and second equivalent sampling networks are input into two respective negative inputs of a differential amplifier, to cancel the distortions of the signal output from the first sampling gate circuit and input to the positive terminal of the differential amplifier. This device may find particular application in sampling type oscilloscopes or the like.

    摘要翻译: 在采样门电路中,通过进一步采用等于第一采样门电路的采样操作的第一和第二等效采样网络来实现宽带和高精度采样门电路。 第一和第二等效采样网络补偿由第一采样门电路输出的信号中的失真,并允许以高精度再现输入波形。 第一采样门电路的输出被输入到差分放大器的正极。 来自第一和第二等效采样网络的输出被输入到差分放大器的两个相应的负输入端,以消除从第一采样门电路输出的信号的失真并输入到差分放大器的正极。 该装置可以在采样式示波器等中找到特定的应用。

    Display circuit of an oscilloscope
    13.
    发明授权
    Display circuit of an oscilloscope 失效
    示波器的显示电路

    公开(公告)号:US4866352A

    公开(公告)日:1989-09-12

    申请号:US147905

    申请日:1988-01-25

    IPC分类号: G01R13/22 G01D3/036 G01R13/28

    CPC分类号: G01D3/0365 G01R13/28

    摘要: A display circuit of an oscillscope to switchingly display waveforms and characters has substantially no fluctuation phenomena caused by switching waveforms and characters. Each driving amplifier for waveforms and characters is employed to drive a final stage amplifier of which outputs are applied to deflection plates of a CRT. As a driving amplifier is not used in common to amplify waveforms and characters, clear waveforms and characters are observable without fluctuations.

    摘要翻译: 用于切换显示波形和字符的振荡器的显示电路基本上没有由开关波形和字符引起的波动现象。 用于波形和字符的每个驱动放大器用于驱动其输出被施加到CRT的偏转板的最后级放大器。 由于驱动放大器不能用于放大波形和字符,因此可以观察到清晰的波形和字符而无波动。

    Microprocessor emulation apparatus for debugging a microprocessor of an
electronic system without utilizing an interrupt signal and a stop
signal to temporarily stop an operation of the system
    14.
    发明授权
    Microprocessor emulation apparatus for debugging a microprocessor of an electronic system without utilizing an interrupt signal and a stop signal to temporarily stop an operation of the system 失效
    微处理器仿真装置,用于调试电子系统的微处理器而不利用中断信号和停止信号来暂时停止系统的操作

    公开(公告)号:US4789924A

    公开(公告)日:1988-12-06

    申请号:US96201

    申请日:1987-09-08

    申请人: Minoru Fukuta

    发明人: Minoru Fukuta

    CPC分类号: G06F11/261 G06F11/3652

    摘要: A microprocessor emulation apparatus for debugging a microprocessor of an electronic system without utilizing an interrupt signal and a stop signal to temporarily stop an operation of the system. The apparatus makes the system execute a program in the apparatus for reading and modifying contents stored in the system without using of control signals from the system by exchanging buses of the system to bus means of the apparatus to produce a pseudo stopping state, whereby the pseudo stopping state does not make the system execute a stored program of the system and which provides an analysis state which causes the system to execute the program in the apparatus.

    摘要翻译: 一种微处理器仿真装置,用于调试电子系统的微处理器而不利用中断信号和停止信号来暂时停止系统的操作。 该装置使系统执行程序,用于读取和修改存储在系统中的内容,而不使用系统的控制信号,通过将系统的总线交换到装置的总线装置以产生伪停止状态,由此伪伪 停止状态不会使系统执行系统的存储程序并且提供导致系统执行程序的分析状态。

    Pen control circuit
    16.
    发明授权
    Pen control circuit 失效
    笔控制电路

    公开(公告)号:US4660055A

    公开(公告)日:1987-04-21

    申请号:US847069

    申请日:1986-04-01

    申请人: Toyoaki Enda

    发明人: Toyoaki Enda

    CPC分类号: G01D15/24

    摘要: A pen control circuit includes a current control circuit for controlling the magnitude of a driving force of a drive coil, a feedback circuit for supplying a feedback signal to the current control ciruit, a clipper for extracting the pen position detection signal only when the level of the pen is higher than a predetermined level with respect to a recording surface, and a selector for selecting first, an output from the clipper as a drive current setting value of the current control circuit during an initial pen-down period and second, the pen pressure setting signal as the drive current setting value after the output from the clipper is disabled. The pen control circuit also includes a current setting circuit for supplying a predetermined drive current setting value to the current control circuit in a pen-up mode and a limiter for limiting a current supplied to the drive coil in accordance with a pen position detection signal when the pen is moved upward to a predetermined position.

    摘要翻译: 笔控制电路包括用于控制驱动线圈的驱动力的大小的电流控制电路,用于向当前控制电路提供反馈信号的反馈电路,仅在当前控制电路的电平 笔相对于记录表面高于预定水平,并且选择器首先选择来自剪辑器的输出作为当前控制电路在初始下降时间段的驱动电流设定值,第二,笔 作为驱动电流设定值的压力设定信号在从限幅器输出后被禁用。 笔控制电路还包括一个电流设定电路,用于在笔触模式下向电流控制电路提供预定的驱动电流设定值,以及限制器,用于根据笔位置检测信号限制提供给驱动线圈的电流, 笔向上移动到预定位置。

    Method for recording and developing latent images in magnetic printing
apparatus
    18.
    发明授权
    Method for recording and developing latent images in magnetic printing apparatus 失效
    在磁性印刷装置中记录和显影潜像的方法

    公开(公告)号:US4654289A

    公开(公告)日:1987-03-31

    申请号:US808852

    申请日:1985-12-13

    申请人: Norio Kokaji

    发明人: Norio Kokaji

    IPC分类号: G03G19/00

    CPC分类号: G03G19/00

    摘要: When latent images in a magnetic printing apparatus are recorded and developed, a magnetic pattern which has one direction and which has at least two magnetic transfer regions is formed at one-dot black picture regions on a recording medium. When the black picture regions have two or more dots, beside the magnetic pattern having one direction, at least one magnetized pattern having the other direction is formed therein. A white picture region is formed by a magnetized pattern which is longer than the magnetized pattern in the black picture region and which has the other direction. The developing magnetic field is formed in the same direction as that of the other direction. A print having high resolution can be obtained by mutual action between the developing field and the magnetic field generated by the magnetized pattern for the recording.

    摘要翻译: 当记录和显影磁性印刷设备中的潜像时,在记录介质上的单点黑色图像区域上形成具有一个方向并具有至少两个磁性传递区域的磁性图案。 当黑色图像区域具有两个或更多个点时,除了具有一个方向的磁图案之外,还形成有至少一个具有另一个方向的磁化图案。 白色图像区域由比黑色图像区域中的磁化图案长并且具有另一个方向的磁化图案形成。 显影磁场沿与其他方向相同的方向形成。 可以通过显影场与由记录磁化图案产生的磁场之间的相互作用获得具有高分辨率的打印。

    Method of controlling platemaking positions and errors
    19.
    发明授权
    Method of controlling platemaking positions and errors 失效
    控制制版位置和错误的方法

    公开(公告)号:US4653008A

    公开(公告)日:1987-03-24

    申请号:US743553

    申请日:1985-06-11

    IPC分类号: G03F9/00 G06F15/46 B65H7/02

    摘要: A method of controlling a position of a plate material sheet in a platemaking machine for feeding the plate material sheet in an exposure region and forming a document image on the plate material sheet. A plate material sheet length sensor detects that the plate material sheet to be fed to the exposure region has passed by the sensor. The overall length of the plate material sheet is calculated in accordance with the number of pulses supplied to a plate material sheet drive motor while the plate material sheet length sensor generates an output. Also calculated is a first predetermined number of pulses to be supplied to the plate material sheet drive motor so as to feed the plate material sheet by a first predetermined length within the exposure region. A stop sensor detects a front edge of the plate material sheet, the stop sensor being arranged such that a center thereof is aligned with the axis of the optical system; and the first predetermined number of pulses is supplied to the plate material sheet drive motor after the stop sensor generates an output, so that a center of a first portion of the plate material sheet is aligned with the axis of the optical system.

    摘要翻译: 一种在制版机中控制板材的位置的方法,用于将板材供给到曝光区域并在平板材料板上形成文件图像。 板材长度传感器检测到要被传送到曝光区域的板材片通过传感器。 当板材长度传感器产生输出时,根据提供给板材驱动电动机的脉冲数来计算板材的总长度。 还计算出将被提供给板材片驱动电机的第一预定数量的脉冲,以便在曝光区域内将板材供给第一预定长度。 停止传感器检测板材的前缘,停止传感器被布置成使得其中心与光学系统的轴线对准; 并且在停止传感器产生输出之后将第一预定数量的脉冲提供给板材片驱动电动机,使得板材片的第一部分的中心与光学系统的轴线对准。

    Jitter-free sweep generator for a cathode ray oscilloscope
    20.
    发明授权
    Jitter-free sweep generator for a cathode ray oscilloscope 失效
    用于阴极射线示波器的无抖动扫描发生器

    公开(公告)号:US4651065A

    公开(公告)日:1987-03-17

    申请号:US762880

    申请日:1985-08-06

    申请人: Tatsumi Suzuki

    发明人: Tatsumi Suzuki

    IPC分类号: G01R13/24 G01R13/32 H01J29/70

    CPC分类号: G01R13/24 G01R13/32

    摘要: A sweep generator for the delivery of a sweep signal to a deflection system (typically horizontal) of a cathode ray tube, including a sawtooth generator for generating a sawtooth waveform containing a ramp which determines the duration of each sweep. A frequency divider such as a D flip flop is connected to a trigger circuit for generating, when enabled by a holdoff signal, output pulses whose recurrence rate is a submultiple of that of the incoming trigger pulses. Also when enabled by the holdoff signal, a sweep gating flip flop responds to the first output pulse from the frequency divider for causing the sawtooth generator to generate the sweep ramp. Thus, since the sweep gating flip flop does not directly responds to the trigger pulses, but to the output pulses of the frequency divider, no jitter is to take place if the holdoff signal acquires a prescribed state for sweep initiation concurrently with a trigger pulse. An additional embodiment is disclosed which includes a pseudotrigger pulse generator for affording a higher sweep frequency when the trigger frequency is low.

    摘要翻译: 用于将扫描信号传送到阴极射线管的偏转系统(通常是水平的)的扫描发生器,包括用于产生锯齿波形的锯齿波发生器,该锯齿波形包含确定每次扫描持续时间的斜坡。 诸如D触发器的分频器连接到触发电路,用于当通过释放信号使能时,其产生的复发率与输入触发脉冲的倍数相差的输出脉冲。 此外,当由释抑信号使能时,扫频门控触发器响应来自分频器的第一输出脉冲,以使锯齿波发生器产生扫频斜坡。 因此,由于扫频门控触发器不直接响应于触发脉冲,而是对分频器的输出脉冲进行直接响应,如果释放信号与触发脉冲同时获取用于扫描启动的规定状态,则不会发生抖动。 公开了一种额外的实施例,其包括伪触发脉冲发生器,用于当触发频率低时提供更高的扫频。