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91. 发明授权

US3796913A Dynamic focus waveform generators 失效
标题翻译：动态聚焦波形发生器
公开(公告)号：US3796913A
公开(公告)日：1974-03-12
申请号：US3796913D
申请日：1973-02-28
申请人： SEACO COMPUTER DISPLAY INC
发明人： HARDING R , LESLIE L , OLSEN E
IPC分类号： G01R13/22 , G06G7/28 , H03K4/04 , H04N3/26 , H01J29/56
CPC分类号： G01R13/22 , G06G7/28 , H03K4/04 , H04N3/26
摘要： Disclosed is waveform shaping network responsive to an incoming signal of varying magnitude and polarity for producing an output signal which waveform or slope is altered, the network including a differential amplifier coupled to the input terminal having a variable level constant current source coupled thereto, the respective outputs of the differential amplifier being coupled to a pair of transistors having their collector outputs coupled to the output terminal of the network, the emitter terminals of each of the transistors respectively coupled to a pair of variable resistance networks, each of the variable resistance networks having a plurality of parallel resistive paths including a fixed and variable resistor and an emitter follower transistor for selectively and sequentially coupling each of the parallel resistive paths to the emitter of the coupled transistor for varying the slope of the signals provided at the output terminal in response to the breakpoint or conduction level of each of the emitter follower transistors. The waveform shaping network is embodied in a pair of focus generators respectively coupled to horizontal and vertical position generators which produce output signals proportional to the horizontal and vertical excursion of the electron beam of a CRT system, the output signals from the focus generators thereafter being coupled through an amplifier to the focus means for effecting the dynamic focus of the electron beam as it engages in its excursions across the CRT tube face.

92. 发明授权

US3779378A Apparatus and method for linearizing the output of a normally nonlinear radio frequency thickness gauge 失效
标题翻译：用于线性化正态非线性无线电频率厚度计的输出的装置和方法
公开(公告)号：US3779378A
公开(公告)日：1973-12-18
申请号：US3779378D
申请日：1973-01-31
申请人： OWENS ILLINOIS INC
发明人： SCHERF G
IPC分类号： G01B7/06 , G01B15/02 , G06G7/28 , B07C5/08
CPC分类号： G06G7/28 , G01B7/06 , G01B15/02
摘要： Apparatus and method for producing a linear voltage versus thickness output for a radio frequency glass thickness gauge. One type of thickness measuring device for glass containers uses the attenuation of a radio frequency signal as a measure of thickness. The thickness signal is a voltage which varies nonlinearly as a function of thickness. This invention is a circuit for linearizing the nonlinear thickness signal. The input resistance to an operational amplifier is varied as a function of the thickness signal voltage. This creates a variable gain for the operational amplifier and consequently results in the generation of a linear thickness versus voltage relationship. Zener diodes are used as nonlinear variable resistors in two different thickness ranges to give a nonlinear, variable, input resistance to the operational amplifier.
摘要翻译：用于产生射频玻璃厚度计的线性电压对厚度输出的装置和方法。用于玻璃容器的一种类型的厚度测量装置使用射频信号的衰减作为厚度的量度。厚度信号是作为厚度的函数非线性变化的电压。本发明是用于线性化非线性厚度信号的电路。对运算放大器的输入电阻作为厚度信号电压的函数而变化。这为运算放大器产生可变增益，从而导致线性厚度对电压关系的产生。齐纳二极管用作两个不同厚度范围的非线性可变电阻器，为运算放大器提供非线性，可变的输入电阻。

93. 发明授权

US3772563A Vector generator utilizing an exponential analogue output signal 失效
标题翻译：矢量发生器利用一个经典的模拟输出信号
公开(公告)号：US3772563A
公开(公告)日：1973-11-13
申请号：US3772563D
申请日：1972-11-09
申请人： VECTOR GENERAL
发明人： HASENBALG R
IPC分类号： G06G7/22 , G06G7/28 , G06K15/18
CPC分类号： G06G7/28 , G06G7/22
摘要： An improved vector generating electrical system is provided for forming the mathematical representation of a vector. The system is particularly useful for drawing images in any desired pattern on the screen of a cathode-ray tube, whereby the images are composed of a multitude of vector lines having horizontal and vertical components. With the improved system of the invention, the vector drawing speed is not constant, but is an exponential function. One embodiment utilizes suitable switching gates to adjust the time constant of the exponential function at discrete points during the drawing stroke to reduce the vector drawing time as much as possible. In a second embodiment the time constant is changed in an infinite resolution system.
摘要翻译：提供了一种改进的矢量生成电气系统，用于形成矢量的数学表示。该系统对于在阴极射线管的屏幕上以任何所需的图案绘制图像特别有用，由此图像由具有水平和垂直分量的多个矢量线组成。利用本发明的改进系统，矢量绘制速度不是恒定的，而是指数函数。一个实施例利用合适的切换门来调整绘图笔画期间离散点处的指数函数的时间常数，以尽可能地减少向量绘制时间。在第二实施例中，时间常数在无限分辨率系统中改变。

94. 发明授权

US3737642A Function generating using piecewise linear approximation 失效
标题翻译：使用线性逼近的函数生成
公开(公告)号：US3737642A
公开(公告)日：1973-06-05
申请号：US3737642D
申请日：1971-08-09
申请人： KROHN HITE CORP
发明人： KULAS W
IPC分类号： G06G7/28 , H03B28/00
CPC分类号： H03B28/00 , G06G7/28
摘要： Resistor-diode circuitry approximates converting linear function to a sinusoidal function by piecewise linear segments through progressive clamping with increasing breakpoint level while using a single potential source for each polarity provided by an emitter follower that is arranged to compensate for the diode voltage drop.
摘要翻译：电阻二极管电路通过分段线性段通过渐进钳位将分段线性函数转换为正弦函数，以增加的断点电平近似，同时为排列成二极管电压降的射极跟随器提供的每个极性使用单个电位源。

95. 发明授权

US3715710A Unipolar acoustic pulse generator 失效
标题翻译： UNIPOLAR声学脉冲发生器
公开(公告)号：US3715710A
公开(公告)日：1973-02-06
申请号：US3715710D
申请日：1970-11-25
申请人： BERNSTEIN J , MULLER J , SCHILDKRAUT S
发明人： BERNSTEIN J , SCHILDKRAUT S , MULLER J
IPC分类号： B06B1/02 , G06G7/28 , G10K11/34 , H03K4/02 , H04B11/00
CPC分类号： G10K11/341 , B06B1/0215 , G06G7/28 , H03K4/026
摘要： Unipolar acoustic pulses of relatively large amplitude and short duration are formed by driving an electroacoustical transducer with a generally staircase-shaped waveform, advantageously through a low pass filter. The applied waveform is formed by linearly summing constituent electrical pulses of preselected amplitude, duration, polarity, and relative time of occurrence. The transducer driving signal acts to reinforce the transducer output in the desired direction, while opposing its output in the reverse direction.

96. 发明授权

US3714505A Dynamic focus correction apparatus for a rectilinearly raster scanned electron beam 失效
标题翻译：用于全频扫描电子束的动态聚焦校正装置
公开(公告)号：US3714505A
公开(公告)日：1973-01-30
申请号：US3714505D
申请日：1970-12-01
申请人： BELL TELEPHONE LABOR INC
发明人： LUKACS M
IPC分类号： G01R13/22 , G06G7/20 , G06G7/28 , H03K4/04 , H04N3/233 , H04N3/26 , H01J29/56
CPC分类号： G06G7/28 , G01R13/22 , G06G7/20 , H03K4/04 , H04N3/2335 , H04N3/26
摘要： To maximize the resolution of a rectilinearly raster scanned electron beam over the entire image area of a cathode ray tube, the signals from the horizontal and vertical deflection circuits are combined vectorially to obtain a voltage proportional to the radial distance of the focused spot from the center of the tube face. This voltage is then shaped, by a diode function generator so as to match the tube''s focus voltage versus radial displacement characteristic, amplified, and applied to the focus element of the tube. As the scan spot moves in a rectilinear raster pattern the signal applied to the tube''s focus element is continuously altered in a manner such that optimum focusing is always achieved.
摘要翻译：为了使阴极射线管的整个图像区域上的直线光栅扫描电子束的分辨率最大化，来自水平和垂直偏转电路的信号被矢量地组合以获得与聚焦点的距离中心成比例的电压的管面。然后通过二极管功能发生器对该电压进行成形，以便匹配管的聚焦电压与径向位移特性，放大并施加到管的聚焦元件上。当扫描点以直线光栅图案移动时，施加到管的聚焦元件的信号以使得始终实现最佳聚焦的方式不断地改变。

97. 发明授权

US3668545A Apparatus for amplifier protection 失效
标题翻译：放大器保护装置
公开(公告)号：US3668545A
公开(公告)日：1972-06-06
申请号：US3668545D
申请日：1969-11-03
申请人： SCOTT INC H H
发明人： RECKLINGHAUSEN DANIEL R VON
IPC分类号： G06G7/28 , H03F1/52 , H03F21/00
CPC分类号： H03F1/52 , G06G7/28
摘要： Protection for amplifiers and the like is provided by proportionally combining a measure of the voltage across the output terminals with a measure of the output current and actuating switching means across the input terminals when a proportional combination exceeds a predetermined value. Transistors may be employed as the amplifier and switching means, and push-pull amplifiers may be so protected. In one embodiment a current-responsive protection device protects both transistors of a push-pull circuit. Multiple proportioning ranges may be provided in a non-linear protection arrangement, and the protection device may be rendered insensitive to short duration overloads. Reverse current protection may also be provided by the addition of one or more diodes.
摘要翻译：当比例组合超过预定值时，通过将输出端子两端的电压的量度与输出电流的量度进行比例组合来提供对放大器等的保护，并且通过输入端子致动开关装置。可以使用晶体管作为放大器和开关装置，并且推挽放大器可以被如此保护。在一个实施例中，电流响应保护装置保护推挽电路的两个晶体管。可以在非线性保护装置中提供多个配比范围，并且保护装置可能对短时间过载不敏感。还可以通过添加一个或多个二极管来提供反向电流保护。

98. 发明授权

US3649922A Digital waveform generator 失效
标题翻译：数字波形发生器
公开(公告)号：US3649922A
公开(公告)日：1972-03-14
申请号：US3649922D
申请日：1969-06-19
申请人： INT STANDARD ELECTRIC CORP
发明人： RALPH FRANK , GINGELL MICHAEL JOHN
IPC分类号： G06G7/28 , H03B21/00 , H03B27/00 , H03C1/60 , H03D7/16 , H03K4/02 , H03K5/01 , H03K6/00 , H03B19/00
CPC分类号： H03K4/026 , G06G7/28 , H03B21/00 , H03B27/00 , H03C1/60 , H03D7/163 , H03K5/01 , H03K6/00
摘要： A digital waveform generator is provided for synthesizing a digital waveform having only the fundamental and prescribed harmonic components present. Additionally, a frequency translation system is provided for selecting a band of frequencies from a given input spectrum and to translate it, either erect or inverted, to a new frequency band. This system is application to both N-path filters or modulators and to R-C digital filters.
摘要翻译：提供数字波形发生器用于合成仅存在基波和规定谐波分量的数字波形。此外，提供频率转换系统用于从给定的输入频谱中选择频带，并将其直立或反转翻译成新的频带。该系统适用于N路径滤波器或调制器以及R-C数字滤波器。

99. 发明授权

US3649492A Method for determining the completeness of cathodic protection of corrodible metal structure 失效
标题翻译：确定可靠金属结构阴极保护的完整性的方法
公开(公告)号：US3649492A
公开(公告)日：1972-03-14
申请号：US3649492D
申请日：1970-09-21
申请人： UNION OIL CO
发明人： MARSH GLENN A , SCHASCHL EDWARD
IPC分类号： C23F13/04 , G01N17/02 , G06G7/28 , C23F13/00 , G01N27/46
CPC分类号： C23F13/04 , G01N17/02 , G06G7/28
摘要： A METHOD FOR EVALUATING THE EFFECTIVENESS OF A CATHODIC PROTECTION SYSTEM IN WHICH THE COMPLETENESS OF CATHODIC PROTECTION OF A CORRODIBLE METAL STRUCTURE EXPOSED TO A CORROSIVE ENVIRONMENT IS ASCERTAINED BY MEASURING THE POLARITY OF THE STRUCTURE WITH RESPECT TO A SPECIMEN OF THE SAME METAL PLACED IN THE CORROSIVE ENVIRONMENT AND ELECTRICALLY CONNECTED TO THE STRUCTURE AND MAINTAINED IN ELECTROLYTIC CONTACT WITH THE CORROSIVE ENVIRONMENT AND OUT OF CONTACT WITH OXYGEN. ALL AREAS OF THE STRUCTURE ARE COMPLETELY CATHODICALLY PROTECTED WHEN THE STRUCTURE EXHIBITS THE SAME POTENTIAL AS THE TEST SPECIMEN, OR IS NEGATIVE WITH RESPECT TO THE SPECIMEN.

100. 发明授权

US3644836A Nonlinear compensation network 失效
标题翻译：非线性补偿网络
公开(公告)号：US3644836A
公开(公告)日：1972-02-22
申请号：US3644836D
申请日：1970-09-02
申请人： US NAVY
发明人： JOHNSON ROY D
IPC分类号： G06G7/28 , G06G7/12 , H03B1/00 , H03K5/00
CPC分类号： G06G7/28
摘要： A compensation network having as an input a nonlinear transducer generated signal, which produces a linear signal by balancing out the nonlinearities in the transduced signal. Compensation is achieved by a plurality of individually operated slope circuits. Each slope circuit is actuated at a particular break point or voltage level of the sensor signal. When actuated the slope circuit produces a signal which compensates for the nonlinearity. The compensator includes break point circuits actuating each slope circuit at the predetermined break point voltage and the break point circuits are closed-loop design minimizing amplifier instability and temperature shift.

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