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1. 发明授权

US4611176A Precision linear ramp function generator 失效
标题翻译：精密线性斜坡函数发生器
公开(公告)号：US4611176A
公开(公告)日：1986-09-09
申请号：US636657
申请日：1984-08-01
申请人： W. Bruce Jatko , David R. McNeilly , Louis H. Thacker
发明人： W. Bruce Jatko , David R. McNeilly , Louis H. Thacker
IPC分类号： H03K4/50 , H03K4/90 , H03K4/10 , H03K4/84
CPC分类号： H03K4/90 , H03K4/50
摘要： A ramp function generator is provided which produces a precise linear rampunction which is repeatable and highly stable. A derivative feedback loop is used to stabilize the output of an integrator in the forward loop and control the ramp rate. The ramp may be started from a selected baseline voltage level and the desired ramp rate is selected by applying an appropriate constant voltage to the input of the integrator.
摘要翻译：提供了斜坡函数发生器，其产生可重复且高度稳定的精确线性斜坡函数。微分反馈回路用于稳定正向回路中积分器的输出并控制斜坡率。斜坡可以从所选择的基线电压电平开始，并且通过对积分器的输入施加适当的恒定电压来选择所需的斜率。

2. 发明授权

US4737657A Interrogator system for identifying electrical circuits 失效
标题翻译：用于识别电路的询问器系统
公开(公告)号：US4737657A
公开(公告)日：1988-04-12
申请号：US884102
申请日：1986-07-10
申请人： William B. Jatko , David R. McNeilly
发明人： William B. Jatko , David R. McNeilly
IPC分类号： G01K1/02 , H04Q9/00 , H04Q9/08 , H02J1/00 , G08C19/16 , H04M11/04
CPC分类号： H04Q9/08 , G01K1/024 , H04Q9/00 , Y10T307/724
摘要： A system for interrogating electrical leads to correctly ascertain the identity of equipment attached to remote ends of the leads. The system includes a source of a carrier signal generated in a controller/receiver to be sent over the leads and an identifier unit at the equipment. The identifier is activated by command of the carrier and uses a portion of the carrier to produce a supply voltage. Each identifier is uniquely programmed for a specific piece of equipment, and causes the impedance of the circuit to be modified whereby the carrier signal is modulated according to that program. The modulation can be amplitude, frequency or phase modulation. A demodulator in the controller/receiver analyzes the modulated carrier signal, and if a verified signal is recognized displays and/or records the information. This information can be utilized in a computer system to prepare a wiring diagram of the electrical equipment attached to specific leads. Specific circuit values are given for amplitude modulation, and the system is particularly described for use with thermocouples.
摘要翻译：用于询问电的系统导致正确地确定连接到引线的远端的设备的身份。该系统包括在控制器/接收器中产生的载波信号源，以通过引线发送，以及设备处的标识符单元。标识符通过载波的命令激活，并使用载波的一部分产生电源电压。每个标识符被唯一地编程用于特定设备，并且导致电路的阻抗被修改，从而根据该程序调制载波信号。调制可以是幅度，频率或相位调制。控制器/接收机中的解调器分析调制的载波信号，并且如果识别出验证的信号，则显示和/或记录信息。该信息可以在计算机系统中用于准备连接到特定引线的电气设备的接线图。给出了用于幅度调制的具体电路值，并且特别描述了用于热电偶的系统。

3. 发明授权

US4563660A Noise isolation system for high-speed circuits 失效
标题翻译：用于高速电路的隔离系统
公开(公告)号：US4563660A
公开(公告)日：1986-01-07
申请号：US566760
申请日：1983-12-29
申请人： David R. McNeilly
发明人： David R. McNeilly
IPC分类号： H03H7/01
CPC分类号： H03H7/01
摘要： A noise isolation circuit is provided that consists of a dual function bypass which confines high-speed switching noise to the component or circuit which generates it and isolates the component or circuit from high-frequency noise transients which may be present on the ground and power supply busses. A local circuit ground is provided which is coupled to the system ground by sufficient impedance to force the dissipation of the noise signal in the local circuit or component generating the noise. The dual function bypass network couples high-frequency noise signals generated in the local component or circuit through a capacitor to the local ground while isolating the component or circuit from noise signals which may be present on the power supply busses or system ground. The network is an effective noise isolating system and is applicable to both high-speed analog and digital circuits.
摘要翻译：提供了一种噪声隔离电路，其包括双功能旁路，其将高速开关噪声限制到产生它的部件或电路，并将部件或电路与可能存在于地面和电源上的高频噪声瞬变隔离公共汽车提供本地电路接地，其通过足够的阻抗耦合到系统地，以迫使本地电路中的噪声信号的消散或产生噪声的分量。双功能旁路网络将本地组件或电路中产生的高频噪声信号通过电容器耦合到本地，同时将组件或电路与可能存在于电源总线或系统地面上的噪声信号隔离。该网络是一种有效的隔离系统，适用于高速模拟和数字电路。

4. 发明授权

US4516020A Light-operated proximity detector with linear output 失效
标题翻译：带线性输出的光电接近检测器
公开(公告)号：US4516020A
公开(公告)日：1985-05-07
申请号：US453982
申请日：1982-12-28
申请人： Marc L. Simpson , David R. McNeilly
发明人： Marc L. Simpson , David R. McNeilly
IPC分类号： G01D5/30 , G01S17/08 , H01J40/14
CPC分类号： G01S17/08 , G01D5/30
摘要： A light-operated proximity detector is described in which reflected light intensity from a surface whose proximity to the detector is to be gauged is translated directly into a signal proportional to the distance of the detector from the surface. A phototransistor is used to sense the reflected light and is connected in a detector circuit which maintains the phototransistor in a saturated state. A negative feedback arrangement using an operational amplifier connected between the collector and emitter of the transistor provides an output at the output of the amplifier which is linearly proportional to the proximity of the surface to the detector containing the transistor. This direct proportional conversion is true even though the light intensity is varying with the proximity in proportion to the square of the inverse of the distance. The detector may be used for measuring the distance remotely from any target surface.
摘要翻译：描述了一种光操作接近检测器，其中来自接近检测器的表面的反射光强度将被测量直接转换成与检测器与表面的距离成比例的信号。光电晶体管用于感测反射光，并连接在将光电晶体管保持在饱和状态的检测器电路中。使用连接在晶体管的集电极和发射极之间的运算放大器的负反馈布置在放大器的输出处提供输出，其与表面与包含晶体管的检测器的接近度成线性比例。这种直接比例转换是真实的，即使光强随着与距离的倒数的平方成比例的接近而变化。检测器可用于测量远离任何目标表面的距离。

5. 发明授权

US4479113A Compensated intruder-detection systems 失效
标题翻译：补偿入侵者检测系统
公开(公告)号：US4479113A
公开(公告)日：1984-10-23
申请号：US340907
申请日：1982-01-20
申请人： David R. McNeilly , William R. Miller
发明人： David R. McNeilly , William R. Miller
IPC分类号： G08B13/00 , G08B13/16 , G08B29/18 , G08B29/00
CPC分类号： G08B29/26 , G08B13/00 , G08B13/1663
摘要： Intruder-detection systems in which intruder-induced signals are transmitted through a medium also receive spurious signals induced by changes in a climatic condition affecting the medium. To combat this, signals received from the detection medium are converted to a first signal. The system also provides a reference signal proportional to climate-induced changes in the medium. The first signal and the reference signal are combined for generating therefrom an output signal which is insensitive to the climatic changes in the medium. An alarm is energized if the output signal exceeds a preselected value. In one embodiment, an acoustic cable is coupled to a fence to generate a first electrical signal proportional to movements thereof. False alarms resulting from wind-induced movements of the fence (detection medium) are eliminated by providing an anemometer-driven voltage generator to provide a reference voltage proportional to the velocity of wind incident on the fence. An analog divider receives the first electrical signal and the reference signal as its numerator and denominator inputs, respectively, and generates therefrom an output signal which is insensitive to the wind-induced movements in the fence.
摘要翻译：通过介质传播入侵者感应信号的入侵者检测系统还接收到影响介质的气候条件变化引起的杂散信号。为了克服这一点，从检测介质接收的信号被转换为第一信号。该系统还提供了与气候引起的介质变化成比例的参考信号。第一信号和参考信号被组合以产生对介质中的气候变化不敏感的输出信号。如果输出信号超过预选值，报警器将通电。在一个实施例中，声学电缆耦合到栅栏以产生与其运动成比例的第一电信号。通过提供风速计驱动的电压发生器以提供与入射在围栏上的风速成比例的参考电压，消除了由围栏（检测介质）的风引起的运动引起的假警报。模拟分频器分别接收第一电信号和参考信号作为其分子和分母输入，从而产生对栅栏中的风引起的运动不敏感的输出信号。

6. 发明授权

US4542346A Wide-range lock-in amplifier 失效
标题翻译：宽范围锁定放大器
公开(公告)号：US4542346A
公开(公告)日：1985-09-17
申请号：US447728
申请日：1982-12-07
申请人： David R. McNeilly
发明人： David R. McNeilly
IPC分类号： H03D1/22 , H03D3/06
CPC分类号： H03D1/2254
摘要： A lock-in amplifier is provided which allows detection of a signal buried in noise without preprocessing of the input signal. An analog signal multiplier is used to obtain a dc output which is the product of the signal being detected and a high-purity sine wave signal. A reference signal of a known selectable frequency is applied to a sine-wave generator to generate the sine wave of the same frequency. The sine wave is applied to a multiplier through a phase shift arrangement to allow the detection of both amplitude of the detected signal and the phases relative to the reference signal. The multiplier output is filtered by a low-pass filter to eliminate unwanted frequency components from the output signal.
摘要翻译：提供了一种锁定放大器，其允许检测埋入噪声的信号，而无需预处理输入信号。模拟信号乘法器用于获得作为被检测信号和高纯正弦波信号的乘积的直流输出。将已知可选频率的参考信号施加到正弦波发生器以产生相同频率的正弦波。通过相移布置将正弦波施加到乘法器，以允许检测检测信号和相位相对于参考信号的幅度。乘法器输出由低通滤波器滤波，以从输出信号中消除不必要的频率分量。

7. 发明授权

US4471403A Biasing and fast degaussing circuit for magnetic materials 失效
标题翻译：用于磁性材料的偏置和快速消磁电路
公开(公告)号：US4471403A
公开(公告)日：1984-09-11
申请号：US539011
申请日：1983-10-04
申请人： William B. Dress, Jr. , David R. McNeilly
发明人： William B. Dress, Jr. , David R. McNeilly
IPC分类号： H01F13/00
CPC分类号： H01F13/006
摘要： A dual-function circuit is provided which may be used to both magnetically bias and alternately, quickly degauss a magnetic device. The circuit may be magnetically coupled or directly connected electrically to a magnetic device, such as a magnetostrictive transducer, to magnetically bias the device by applying a d.c. current and alternately apply a selectively damped a.c. current to the device to degauss the device. The circuit is of particular value in many systems which use magnetostrictive transducers for ultrasonic transmission in different propagation modes over very short time periods.
摘要翻译：提供了双功能电路，其可以用于磁偏置和交替地快速消磁磁性器件。电路可以磁耦合或直接电连接到诸如磁致伸缩换能器的磁性装置，以通过施加直流电流来对装置进行磁偏置。电流并交替地施加选择性阻尼的交流电。电流到设备去消磁设备。该电路在许多系统中是特别有价值的，它们在非常短的时间段内以不同的传播模式使用磁致伸缩传感器进行超声波传输。

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