公开(公告)号：US4086651A

公开(公告)日：1978-04-25

申请号：US700915

申请日：1976-06-29

申请人： Andrew Redvers Muir ,  Joseph Anthony Vergato

发明人： Andrew Redvers Muir ,  Joseph Anthony Vergato

IPC分类号： G01R19/04 ,  H03K5/1532 ,  G06F15/20 ,  G01J3/28 ,  H03K5/20

CPC分类号： G01R19/04 ,  H03K5/1532

摘要： Anticipation signals are derived for each peak whenever a differential exists within a closed loop having the electrical output connected to the input thereof and a confirmation signal is derived after each peak at a threshold level of the new slope polarity exceeding the noise level of the electrical output. The amplitude of each peak is stored as a voltage level which follows the electrical output throughout either slope polarity until a peak is reached and this voltage level is continuously compared with the electrical output to derive the slope polarity thresholds. Otherwise, a very particular embodiment is disclosed with which the stored voltage level only relates to either the most significant maximum or minimum peak of the electrical output and the disclosed embodiments are related to instruments which perform spectral analysis.

摘要翻译： 每当差分存在于具有连接到其输入的电输出的闭合回路中并且在新斜率极限的阈值电平之后的每个峰值之后导出的确认信号超过电输出的噪声电平时，导出每个峰值的预期信号 。 每个峰值的振幅被存储为在整个斜率极性下遵循电输出的电压电平，直到达到峰值，并且该电压电平与电输出连续地比较以导出斜率极性阈值。 否则，公开了一个非常特定的实施例，其中存储的电压电平仅与电输出的最高有效最大值或最小峰相关，并且所公开的实施例与执行光谱分析的仪器相关。

公开(公告)号：US4074325A

公开(公告)日：1978-02-14

申请号：US770785

申请日：1977-02-22

申请人： Yoshiaki Sakai ,  Kuniki Murayama

发明人： Yoshiaki Sakai ,  Kuniki Murayama

IPC分类号： G11B20/10 ,  H03K5/1532 ,  G11B5/09 ,  G11B5/02

CPC分类号： G11B20/10009 ,  H03K5/1532

摘要： For sensing the peaks of an electric signal reconverted by a magnetic head from a digital signal stored on a magnetic tape or other recording media, a half-wave rectifying diode is connected to the magnetic head via an amplifier. The output of the half-wave rectifying diode is connected directly to a resistance-capacitance differentiating circuit, without interposition of a slicer therebetween. An output from the differentiating circuit is compared with a variable level-setting reference voltage in a substantially connected comparator circuit, and the latter produces output pulses the trailing edges of which substantially correspond in time to the peaks of the output from the magnetic head. A pulse trailing edge sensing circuit connected next to the comparator circuit produces output pulses of comparatively short durations corresponding to the trailing edges of the comparator output pulses. The comparator circuit has a switching transistor for selectively varying a differential between the levels of its reference voltage in accordance with the output amplitude of the differentiating circuit.

公开(公告)号：US4074149A

公开(公告)日：1978-02-14

申请号：US522116

申请日：1974-11-08

申请人： Geert J. Naaijer

发明人： Geert J. Naaijer

IPC分类号： G11B5/09 ,  G01R19/04 ,  G11B20/10 ,  H03K5/08 ,  H03K5/1532 ,  H03K5/153

CPC分类号： G01R19/04 ,  G11B20/10009

摘要： A peak detector for electrical signal peaks including a capacitor which is charged, via a rectifying element, to a voltage corresponding to the peak value. At the end of the peak a discharging element connected parallel to the capacitor is activated for a predetermined period of time, with the result that the capacitor is discharged over a fixed fraction of its peak voltage. At the end of the predetermined period of time, the discharging element is reactivated, with the result that a substantially constant voltage remains as a reference level.

摘要翻译： 电信号峰值检测器包括电容器，该电容器通过整流元件被充电到对应于峰值的电压。 在峰值结束时，与电容器并联连接的放电元件被激活预定时间段，结果电容器以其峰值电压的固定分数放电。 在预定时间段结束时，放电元件被重新激活，结果基本恒定的电压保持为参考电平。

公开(公告)号：US4020423A

公开(公告)日：1977-04-26

申请号：US572624

申请日：1975-04-28

申请人： Volker Guyot ,  Paul Holdinghausen ,  Martin Mueller

发明人： Volker Guyot ,  Paul Holdinghausen ,  Martin Mueller

IPC分类号： G01M1/22 ,  H03K5/1532 ,  H03K5/20

CPC分类号： H03K5/1532 ,  G01M1/22

摘要： The present circuit arrangement is, for example, useful for producing reference signals in response to the rotation of a body such as a wheel or rotor to be balanced. Source signals are produced in response to the rotation of said body. Circuit means are provided for handling and comparing the source signals in such a manner that the reference signals are provided at an output terminal in response to the occurrence of the center of a source signal or in response to the maximum of a source signal. The transmittal may also be controlled in response to the center and the maximum of a source signal.

摘要翻译： 例如，本电路装置可用于响应于待平衡的车轮或转子的本体的旋转产生参考信号。 源信号是响应于所述主体的旋转产生的。 提供电路装置，用于处理和比较源信号，使得参考信号响应于源信号的中心的出现或响应于源信号的最大值而在输出端提供。 还可以响应于源信号的中心和最大值来控制传输。

公开(公告)号：US4012786A

公开(公告)日：1977-03-15

申请号：US655438

申请日：1976-02-05

申请人： Kenneth Thomas McKie ,  Istvan Steve Olah

发明人： Kenneth Thomas McKie ,  Istvan Steve Olah

IPC分类号： G11B20/14 ,  H03K5/1532 ,  G11B5/02

CPC分类号： G11B20/1423 ,  H03K5/1532

摘要： A data decoder is provided which is useful for decoding data magnetically encoded on a magnetic stripe on the back side of a credit card which may be manually moved through a reader at a variable velocity. The data is decoded by comparing the occurrence of voltage pulses after the onset of a bit interval, representing binary data encoded as magnetic flux changes, with a preselected portion of the measured time duration of the preceding bit interval. If a voltage pulse occurs after the onset but before the end of the preselected portion, the data is determined as a binary "one"; if a voltage pulse occurs after the end of the preselected portion, the data state is determined as a binary "zero".

摘要翻译： 提供了一种数据解码器，其对于可以以可变速度手动移动通过读取器的信用卡背面上的磁条上的磁性编码的数据进行解码。 数据通过比较在比特间隔开始之后的电压脉冲的出现，表示被编码为磁通量变化的二进制数据与前一比特间隔的测量持续时间的预选部分进行解码。 如果在开始之后但在预选部分结束之前发生电压脉冲，则将数据确定为二进制“1”; 如果在预选部分结束之后发生电压脉冲，则将数据状态确定为二进制“零”。

公开(公告)号：US4001604A

公开(公告)日：1977-01-04

申请号：US571671

申请日：1975-04-25

申请人： Jack G. Parks ,  Gordon J. McInnes

发明人： Jack G. Parks ,  Gordon J. McInnes

IPC分类号： G11C11/404 ,  G11C27/00 ,  G11C27/02 ,  H03K5/1532 ,  H03M1/00 ,  H03K5/13 ,  H03K5/153 ,  H03K13/02 ,  H03K17/60

CPC分类号： G11C27/024 ,  G11C11/404 ,  G11C27/00 ,  H03K5/1532 ,  H03M1/124

摘要： A circuit for detecting peaks in a time-variant signal, comprising a track-hold unit having a first mode for tracking the time-variant signal, and a second mode for storing instantaneous peak values. The track-hold unit is controlled by a comparator which samples the time-variant signal and stored peak; logic output of the comparator is applied to the track-hold unit to direct it into its first or second modes in accordance with the relative values of the sampled signals.

公开(公告)号：US3931580A

公开(公告)日：1976-01-06

申请号：US477885

申请日：1974-06-10

申请人： Edward F. Hebda

发明人： Edward F. Hebda

IPC分类号： H03K5/01 ,  H03K5/08 ,  H03K5/1532 ,  H03K9/00 ,  H04L25/02 ,  H04N1/403 ,  H04N5/14 ,  H04B3/36

CPC分类号： H04N5/14 ,  H03K5/01 ,  H03K5/082 ,  H03K5/1532 ,  H03K9/00 ,  H04L25/02 ,  H04N1/403

摘要： A digital line receiver circuit which incorporates a slope detector in the form of a differential voltage comparator. The two inputs to the comparator receive a composite digital video signal but the signal on the second input is modified by a delay and biasing arrangement such that the output gives a representation of the time positions of polarity changes of the digital input.

摘要翻译： 数字线路接收器电路，其包含形式为差分电压比较器的斜率检测器。 比较器的两个输入接收复合数字视频信号，但第二输入端的信号由延迟和偏置装置修改，使得输出给出数字输入的极性变化的时间位置的表示。

公开(公告)号：US3906377A

公开(公告)日：1975-09-16

申请号：US49102074

申请日：1974-07-23

申请人： US NAVY

发明人： HARRIS ROBERT W

IPC分类号： H03K5/1532 ,  H03K5/20 ,  G06G7/18

CPC分类号： H03K5/1532

摘要： An improved device for measuring the time of occurrence of a pulse centroid, particularly for irregularly shaped electrical pulses. An electrical pulse is fed to a first integrator whose output is fed to a summing network and a second inverting integrator. The output from the second integrator is also fed to the summing network. The output of the summing network is then fed to a zero crossing detector which provides an output related in time to the time of occurrence of the pulse centroid.

摘要翻译： 用于测量脉冲重心出现时间的改进装置，特别是用于不规则形状的电脉冲。 电脉冲被馈送到第一积分器，其第一积分器的输出被馈送到求和网络和第二反相积分器。 来自第二积分器的输出也被馈送到求和网络。 然后将求和网络的输出馈送到过零检测器，其提供与时间相关的输出到脉冲质心发生的时间。

公开(公告)号：US3863160A

公开(公告)日：1975-01-28

申请号：US35793073

申请日：1973-05-07

申请人： DOTY EDWARD NEAL

发明人： DOTY EDWARD NEAL

IPC分类号： G01N15/12 ,  H03K5/1532 ,  H03K5/20

CPC分类号： G01N15/1227 ,  H03K5/1532

摘要： The pulses produced by a Coulter type of electronic particle analyzer having a scanning aperture have amplitudes proportional to the particle volumes; hence, random in amplitude. The pulses are variably asymmetric due to the particle scanning aperture and particle flow arrangement. The most reliable measure of particle volume is pulse amplitude at the time when the particle is halfway through the scanning aperture path. By attenuating each pulse to the same predetermined percentage of its amplitude and comparing the attenuated signal level with the original pulse in two different time spaced channels, there results two equal rectangular time-spaced pulses that separately then are integrated and compared. If the integration durations are equal, but one integral signal is attenuated to one half, then the two time-spaced integral signals will have equal amplitudes at the time center of the rectangular pulse, the symmetric time center of the original pulse. Adjustment of the slope of integration and/or attenuation of one integral signal can shift the time position. In this manner the amplitude of the particle-pulse can be strobed at its aperture path center time.

摘要翻译： 由具有扫描孔径的Coulter型电子粒子分析仪产生的脉冲具有与粒子体积成比例的振幅; 因此，幅度随机。 由于颗粒扫描孔径和颗粒流动布置，脉冲是可变的不对称的。 最可靠的粒子体积测量是当粒子在扫描孔径路径的中途时的脉冲幅度。 通过将每个脉冲衰减到相同的预定百分比的幅度并将衰减的信号电平与两个不同时间间隔的通道中的原始脉冲进行比较，产生两个相等的矩形时间间隔脉冲，然后将其进行积分和比较。 如果积分持续时间相等，但是一个积分信号衰减到一半，则两个时间间隔积分信号在矩形脉冲的时间中心处具有相等的幅度，即原始脉冲的对称时间中心。 一个积分信号的积分斜率和/或衰减的调整可以改变时间位置。 以这种方式，粒子脉冲的幅度可以在其孔径中心时间被选通。

公开(公告)号：US3852617A

公开(公告)日：1974-12-03

申请号：US32009273

申请日：1973-01-02

申请人： INT VIDEO CORP

发明人： VIDOVIC N

IPC分类号： H03D13/00 ,  H03K5/08 ,  H03K5/1532 ,  H03K17/00

CPC分类号： H03K5/082 ,  H03D13/006 ,  H03K5/1532

摘要： A level shifting circuit employing a passive peak detector including a transistor receiving the input signal at its emitter and having the charging capacitor between its collector and ground so that the voltage drop is only the small saturation voltage of the transistor, which varies only slightly with temperature. A discharging resistor in the base lead biases the transistor off when the input voltage drops below the peak. A signal to be level shifted is applied to the passive peak detector and a portion of the peak signal is subtracted from the signal in order to shift its level.

摘要翻译： 一种电平移位电路，采用无源峰值检测器，其包括晶体管，其在其发射极处接收输入信号，并且在其集电极和地之间具有充电电容器，使得电压降仅为晶体管的小的饱和电压，其仅随温度变化 。 当输入电压下降到峰值以下时，基极引线中的放电电阻将晶体管偏置。 将被电平移位的信号施加到无源峰值检测器，并且从该信号中减去一部分峰值信号以使其电平移位。