Control apparatus for a recording medium drive motor in a digital
information reproducing apparatus
    91.
    发明授权
    Control apparatus for a recording medium drive motor in a digital information reproducing apparatus 失效
    数字信息再生装置中记录介质驱动电机的控制装置

    公开(公告)号:US4423498A

    公开(公告)日:1983-12-27

    申请号:US311048

    申请日:1981-10-13

    摘要: A digital audio disc (DAD) reproducing apparatus comprises pulse width detection and pulse width-to-voltage conversion means for detecting a signal having a predetermined pulse width such as a maximum or minimum pulse width of code modulated digital data signals reproduced by a pickup and converting the detected signal to a voltage proportional to the pulse width, and pulse width error detection means for detecting an error between the converted voltage and a reference voltage corresponding to a reference pulse width. Since the pulse width of the digital data signal changes with a clock rate, the error from the reference voltage represents an error in the clock rate.

    摘要翻译: 数字音频盘(DAD)再现装置包括脉冲宽度检测和脉冲宽度 - 电压转换装置,用于检测具有预定脉冲宽度的信号,例如由拾取器再现的码调制数字数据信号的最大或最小脉冲宽度, 将检测到的信号转换成与脉冲宽度成比例的电压,以及脉冲宽度误差检测装置,用于检测转换电压与对应于参考脉冲宽度的参考电压之间的误差。 由于数字数据信号的脉冲宽度以时钟速率变化,所以参考电压的误差表示时钟频率的误差。

    Overvoltage-pulse analyzer
    92.
    发明授权
    Overvoltage-pulse analyzer 失效
    过压脉冲分析仪

    公开(公告)号:US4365193A

    公开(公告)日:1982-12-21

    申请号:US174695

    申请日:1980-08-01

    摘要: A system for measuring and storing the amplitudes plus duration and/or rise times of overvoltage pulses occurring on a transmission line comprises a voltage divider working into a first and a second comparator respectively detecting an abnormal voltage exceeding a predetermined sensitivity threshold and discriminating among different amplitude levels above that threshold. The first comparator triggers an oscillator driving a pulse counter which measures the duration of an overvoltage pulse and also provides quantized information on rise time to the highest amplitude threshold surpassed by that pulse as determined by the second comparator. This information is stored in a memory with two groups of cells respectively assigned to combinations of amplitude with duration and combinations of amplitude with rise time, the occurrence of any such combination incrementing the contents of the respective cell. These cells are cyclically scannable and their contents can be selectively displayed on a visualizer such as an oscilloscope.

    摘要翻译: 用于测量和存储幅度加上在传输线上发生的过电压脉冲的持续时间和/或上升时间的系统包括分压器,分压器分别工作在第一和第二比较器中,分别检测超过预定灵敏度阈值的异常电压,并在不同幅度 高于该阈值。 第一比较器触发振荡器驱动脉冲计数器,该脉冲计数器测量过电压脉冲的持续时间,并且还将上升时间的量化信息提供给由第二比较器确定的该脉冲超过的最大幅度阈值。 该信息被存储在具有两组信元的存储器中,这两组信元分别被分配给具有持续时间的幅度和振幅的组合与上升时间的组合,任何这样的组合的出现增加了相应单元的内容。 这些单元是循环可扫描的,并且它们的内容可以有选择地显示在诸如示波器的可视化器上。

    Pulse width spectrum analyzer
    93.
    发明授权
    Pulse width spectrum analyzer 失效
    脉宽谱分析仪

    公开(公告)号:US4348637A

    公开(公告)日:1982-09-07

    申请号:US205359

    申请日:1980-11-10

    CPC分类号: G01R29/0273 G01R29/033

    摘要: Each incoming pulse has its width determined and is stored in a designatedtorage counter in accordance with its pulse width. The contents of the storage counters are serially addressed and the value of each counter is obtained. The value of each counter is used as a Y input to a readout and the serially addressing of the counter is used as the X input of the readout device. The count on counters are maintained within their capacity by sensing when a counter reaches its maximum value and causing all counters to down count in accordance with the input rate to this particular storage counter.

    摘要翻译: 每个输入脉冲具有确定的宽度,并根据其脉冲宽度存储在指定的存储计数器中。 存储计数器的内容被串行寻址,并且获得每个计数器的值。 每个计数器的值用作读出的Y输入,并且计数器的串行寻址用作读出装置的X输入。 计数器的计数通过检测计数器达到其最大值并使所有计数器根据该特定存储计数器的输入速率进行计数而保持在其容量内。

    Missing pulse detector
    94.
    发明授权
    Missing pulse detector 失效
    缺少脉冲检测器

    公开(公告)号:US4345209A

    公开(公告)日:1982-08-17

    申请号:US152127

    申请日:1980-05-21

    申请人: Michael J. Walker

    发明人: Michael J. Walker

    IPC分类号: G01R29/027 H03K5/19 H03K5/26

    CPC分类号: G01R29/0273 H03K5/19

    摘要: A missing pulse detector includes a plurality of signal accumulation capacitors which are discharged periodically and then charged via resistor during the periods between pulses in the input pulse train at an input terminal. The voltage signals on the capacitors are compared by comparators the resistors being of values such that the comparator outputs are high (at the comparison time) unless a pulse is missed.

    摘要翻译: 丢失的脉冲检测器包括多个信号累加电容器,其周期性地放电,然后在输入端的输入脉冲串中的脉冲之间的周期期间通过电阻充电。 电容器上的电压信号由比较器进行比较,电阻器的值为使得比较器输出为高电平(在比较时间),除非错过了脉冲。

    Pulse width discriminator
    95.
    发明授权
    Pulse width discriminator 失效
    脉冲宽度鉴别器

    公开(公告)号:US4339723A

    公开(公告)日:1982-07-13

    申请号:US114795

    申请日:1980-01-24

    申请人: Henry C. Yee

    发明人: Henry C. Yee

    IPC分类号: G01R29/027 H04Q9/14 H03K5/22

    CPC分类号: G01R29/0273 H04Q9/14

    摘要: A pulse width discriminator using a negative logic technique including two monostable multivibrators for generating test pulses and a D-latch for generating an output signal in response to the test pulses indicating that the received signal is of a predetermined length.

    摘要翻译: 使用包括用于产生测试脉冲的两个单稳态多谐振荡器的负逻辑技术的脉冲宽度鉴别器和用于响应于指示接收到的信号是预定长度的测试脉冲而产生输出信号的D锁存器。

    Method and arrangement for pulse spacing measurement
    96.
    发明授权
    Method and arrangement for pulse spacing measurement 失效
    脉冲间隔测量的方法和布置

    公开(公告)号:US4322832A

    公开(公告)日:1982-03-30

    申请号:US158444

    申请日:1980-06-11

    摘要: Method and apparatus for pulse spacing measurement with periodic pulse pairs, in particular in pulse radar, by measuring the time interval between the instants of the coincidence of a pulse edge with a trigger level which is set in a predetermined ratio to the peak value of the pulse, characterized in that the pulse pairs are sampled by the sampling method with the aid of sampling pulses whose recurrence period is smaller by a predetermined small time difference than the recurrence period of the pulse pairs, that for each time-transformed pulse obtained by the sampling the peak value is determined and a trigger level having a predetermined ratio to the peak value is set, and that the time interval between the instants of the coincidence of the trailing pulse edge of each time-transformed pulse and the associated trigger level is measured.

    摘要翻译: 用于脉冲间隔测量的方法和装置,特别是在脉冲雷达中,通过测量脉冲边沿与以预定比例设定的触发电平的瞬间之间的时间间隔, 脉冲,其特征在于,借助采样脉冲对采样脉冲进行采样,脉冲对的复现周期比脉冲对的复现周期小一个预定的小时间差,对于由 确定峰值的采样,并且设置具有与峰值的预定比率的触发电平,并且测量每个时间变换脉冲的跟随脉冲边沿与相关联的触发电平的一致的时刻之间的时间间隔 。

    Interval-to-rate converter
    97.
    发明授权
    Interval-to-rate converter 失效
    间隔到速率转换器

    公开(公告)号:US4301405A

    公开(公告)日:1981-11-17

    申请号:US87790

    申请日:1979-10-24

    申请人: Scott W. Carlson

    发明人: Scott W. Carlson

    摘要: A pulse interval to pulse rate converter for use in a portable, battery-powered, hand-held test instrument useful for evaluating the performance of a pulse generator such as a cardiac pacer or the like. A pulse generator being tested generates output pulses at an unknown rate and it is desired to measure this rate and to visually display same in units of pulses per minute. A count representative of the interval between successive pulses is developed in a first digital counter and subsequently stored in a holding register, thereby freeing the first counter to continue to measure subsequent pulse-to-pulse intervals. A digital downcounter, arranged to be decremented at a fixed high rate, receives the stored interval value and a tally is developed in a display counter of the number of times that the interval value can be decremented to zero within a known time period, e.g., one second. The count developed in the display counter thus corresponds to the rate value expressed in units of pulses per minute (ppm).

    摘要翻译: 一种用于便携式,电池供电的手持式测试仪器中的脉冲间隔到脉搏率转换器,其用于评估诸如心脏起搏器等的脉冲发生器的性能。 正在测试的脉冲发生器以未知的速率产生输出脉冲,并且期望测量该速率并且以每分钟脉冲为单位在视觉上显示相同的速率。 代表连续脉冲间隔的计数在第一数字计数器中产生并随后存储在保持寄存器中,从而释放第一计数器以继续测量后续的脉冲 - 脉冲间隔。 被布置为以固定的高速率递减的数字下位计数器接收所存储的间隔值,并且在显示计数器中显示在已知时间段内间隔值可以递减到零的次数的计数,例如, 一秒。 在显示计数器中产生的计数器因此对应于以每分钟脉冲(ppm)为单位表示的速率值。

    Automatic control of arming signal for time interval measurements
    98.
    发明授权
    Automatic control of arming signal for time interval measurements 失效
    自动控制布防信号进行时间间隔测量

    公开(公告)号:US4234845A

    公开(公告)日:1980-11-18

    申请号:US959969

    申请日:1978-11-13

    申请人: Mark S. Allen

    发明人: Mark S. Allen

    CPC分类号: G01R29/0273 G04F10/00

    摘要: Both positive and negative time interval measurements between start and stop channel signals are made without ambiguity during repetitive measurements. Circuitry monitors the start and stop channel signals and automatically changes the arming of the measurement circuitry whenever drifting of the signals requires a change in arming. Once the start or stop channel event is chosen as the initial source of the arming signal, subsequent arming signal selections are accomplished automatically.

    摘要翻译: 在重复测量期间,开始和停止通道信号之间的正和负时间间隔测量都不会有歧义。 电路监视启动和停止通道信号,并且每当信号漂移需要改变时,自动更改测量电路的布防。 一旦开始或停止信道事件被选择作为布防信号的初始源,随后的布防信号选择将自动完成。

    Circuit for the suppression of interference pulses
    99.
    发明授权
    Circuit for the suppression of interference pulses 失效
    阻塞脉冲抑制电路

    公开(公告)号:US3842291A

    公开(公告)日:1974-10-15

    申请号:US36953373

    申请日:1973-06-13

    申请人: SIEMENS AG

    发明人: MARINGER A

    IPC分类号: G01R29/027 H03K1/10

    CPC分类号: G01R29/0273

    摘要: A circuit for the suspension of interference pulses such as those resulting from holes in a machine part which is magnetically coupled to a triggering circuit in which the interference pulses, which have polarities opposite to those of the signal to be detected, are used to ground the trigger circuit output when such pulses are sensed.

    摘要翻译: 用于暂停干扰脉冲的电路,例如由机械部分中的孔产生的干扰脉冲,该电路磁耦合到触发电路,其中具有与待检测信号的极性相反的干扰脉冲的干扰脉冲用于将 当检测到这样的脉冲时触发电路输出。

    Noise pulse rejection circuit
    100.
    发明授权
    Noise pulse rejection circuit 失效
    噪声脉冲抑制电路

    公开(公告)号:US3822385A

    公开(公告)日:1974-07-02

    申请号:US39740673

    申请日:1973-09-14

    发明人: KAYALIOGLU I

    摘要: A circuit for rejecting pulses having a width less than a predetermined amount uses a single amplifier. The pulses are fed to the amplifier through a resistance-capacitance charging circuit. The resistance element is shunted by a pair of switched low impedance circuits which are controlled by the output signal of the amplifier to selectively permit current flow through only one of the circuits.

    摘要翻译: 用于抑制宽度小于预定量的脉冲的电路使用单个放大器。 脉冲通过电阻 - 电容充电电路馈送到放大器。 电阻元件由一对开关低阻抗电路分流,该电路由放大器的输出信号控制,以选择性地允许电流仅流经电路中的一个。