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公开(公告)号：US3908115A
公开(公告)日：1975-09-23
申请号：US51299074
申请日：1974-10-07
发明人： WAGGENER WILLIAM N
CPC分类号： H04L7/033 , H04L7/0041 , H04L25/0262
摘要： A data receiver has a digital filter which is adaptively tuned to the instantaneous bit-rate of a received noisy digital signal so as to provide an optimum transfer function despite irregularities in the received signal. A timing signal which reflects the true rate of the received signal adaptively tunes the filter, and sets the bit-rate at which the filter output is digitized. The data receiver output is a digital signal which is a reconstruction of the information content of the received digital signal with low probability of error.
摘要翻译： 数据接收机具有数字滤波器，其自适应地调谐到接收的噪声数字信号的瞬时比特率，以便尽管接收信号中的不规则性来提供最佳传输函数。 反映接收信号的真实速率的定时信号自适应地调谐滤波器，并且设置滤波器输出被数字化的比特率。 数据接收器输出是数字信号，其是以较低误差概率重建接收到的数字信号的信息内容。
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2.发明授权Fully digital spectrum analyzer using time compression and discrete fourier transform techniques 失效全数字频谱分析仪采用时间压缩和离散傅里叶变换技术
公开(公告)号：US3881097A
公开(公告)日：1975-04-29
申请号：US36009873
申请日：1973-05-14
发明人： LEHMANN JOSEPH L , LYNCH FRANK
CPC分类号： G06F17/141 , G01R23/00
摘要： A fully digital spectrum analyzer accepting as an input either an analog signal or a series of digital numbers and using time compression and DFT (Discrete Fourier Transform) techniques to provide the spectral component values of the input signal. Novel techniques and means are used in obtaining the power values for selected spectral lines and in averaging these power values. Statistically controlled noise is added to the input of the spectrum analyzer to enhance its resolutin beyond the resolution which would be otherwise available. Advanced and efficient techniques are used for generating and applying trigonometric functions in the course of finding the real and imaginary part of Fourier transforms, and for providing running averages of the power spectra.
摘要翻译： 全数字频谱分析仪接收模拟信号或一系列数字数字的输入，并使用时间压缩和DFT（离散傅里叶变换）技术提供输入信号的频谱分量值。 在获得所选光谱线的功率值和平均这些功率值时使用新的技术和手段。 将统计控制的噪声添加到频谱分析仪的输入端，以增强其解析度，超出分辨率，否则可用。 在找到傅里叶变换的实部和虚部的过程中，使用高级和高效的技术来产生和应用三角函数，并提供功率谱的运行平均值。
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公开(公告)号：US3814183A
公开(公告)日：1974-06-04
申请号：US39270673
申请日：1973-08-29
发明人： KISHEL J
摘要： In the preferred embodiment of the invention disclosed herein, a new and improved well tool which is adapted to be coupled in a drill string adjacent to a drill bit includes inner and outer telescoping members which are cooperatively arranged to define an expansible sample chamber for entrapping a discrete sample of drilling mud from a borehole adjacent to the drill bit in a drill string upon telescoping movement of the inner and outer members. Valve means are cooperatively arranged between the telescoping members for selectively closing the sample chamber upon further movement of the telescoping members to expand the sample chamber. In this manner, by coupling force-measuring means to a drill string coupled to the tool the force required to fully expand the chamber is measured for providing a surface indication which is indicative of the percentage of gas entrained in the collected sample.
摘要翻译： 在本文公开的本发明的优选实施例中，适于联接在与钻头相邻的钻柱中的新的和改进的井具包括内部和外部伸缩构件，所述内部和外部伸缩构件协作地布置以限定可扩展的样品室， 在内部和外部构件的伸缩运动时钻井泥浆中的钻井泥浆的离散样品在钻柱中与钻头相邻。 阀装置协同地布置在伸缩构件之间，用于当进一步移动伸缩构件以使样品室膨胀时选择性地关闭样品室。 以这种方式，通过将力测量装置耦合到联接到工具的钻柱，测量完全膨胀室所需的力，以提供指示所收集的样品中夹带的气体的百分比的表面指示。
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公开(公告)号：US3802260A
公开(公告)日：1974-04-09
申请号：US23598972
申请日：1972-03-20
发明人： KISHEL J
CPC分类号： E21B47/10 , E21B21/08 , E21B49/005
摘要： In the preferred embodiment of the invention disclosed herein, inner and outer telescoping members coupled in a drill string adjacent to a drill bit are cooperatively arranged to define an expansible sample chamber for entrapping a discrete sample of drilling mud from the borehole adjacent to the drill bit upon telescoping movement of the inner and outer members. Valve means are cooperatively arranged between the telescoping members for selectively closing the sample chamber upon further movement of the telescoping members to expand the sample chamber. Forcemeasuring means are coupled to the drill string for measuring the force required to fully expand the chamber and thereby providing a surface indication which is indicative of the percentage of gas entrained in the collected sample.
摘要翻译： 在本文公开的本发明的优选实施例中，联接在与钻头相邻的钻柱中的内部和外部伸缩构件协同地布置以限定可扩展的样品室，用于将邻近钻头的钻孔的钻井泥浆的离散样本 在内部和外部构件的伸缩运动时。 阀装置协同地布置在伸缩构件之间，用于当进一步移动伸缩构件以使样品室膨胀时选择性地关闭样品室。 力测量装置联接到钻柱，用于测量完全膨胀室所需的力，从而提供指示所收集的样品中夹带的气体百分比的表面指示。
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公开(公告)号：US3786350A
公开(公告)日：1974-01-15
申请号：US3786350D
申请日：1972-08-21
发明人： MUNT I
摘要： A digital ohmmeter having a differential amplifier with a capacitor connected between the output and the inverting input to form an integrator. A source of DC voltage is connected to a series circuit including the unknown resistor and to a switch which selectively connects the source to a second series circuit, an intermediate point of which is connected to the inverting terminal of the amplifier. The unknown resistor is connected to the noninverting input. The output of the amplifier is connected to logic circuit and counting means of the type used in dual slope integrating digital voltmeters, and others such as voltageto-frequency converters, with the logic means having an output to control the switch means. The switch is open for a fixed interval and closed for a variable interval, which variable interval is counted as a measure of the input resistance. In this embodiment, the two series resistance circuits form a bridge when the switch is closed. In a second embodiment an additional switch connects the second series circuit to ground when it is disconnected from the source. In either embodiment the resistance value is linearly proportional to the length of the variable interval of time multiplied by a constant, the constant being determined by the fixed resistors in the two series circuits.
摘要翻译： 一种具有差分放大器的数字欧姆表，其中电容器连接在输出和反相输入端之间以形成积分器。 直流电压源连接到包括未知电阻的串联电路和连接到第二串联电路的开关，该第二串联电路的中间点连接到放大器的反相端。 未知电阻连接到同相输入。 放大器的输出连接到逻辑电路和用于双斜率积分数字电压表中的类型的计数装置，以及其它诸如电压 - 频率转换器的逻辑装置具有用于控制开关装置的输出。 开关打开一个固定的间隔，并关闭一个可变间隔，该可变间隔被计为输入电阻的量度。 在本实施例中，当开关闭合时，两个串联电阻电路形成桥。 在第二实施例中，附加开关在与源极断开时将第二串联电路连接到地。 在任一实施例中，电阻值与可变时间间隔的长度乘以常数成线性比例，该常数由两个串联电路中的固定电阻器确定。
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公开(公告)号：US3740561A
公开(公告)日：1973-06-19
申请号：US3740561D
申请日：1971-05-05
IPC分类号： C03B23/207 , C03B37/028 , C03B37/15 , H01J9/12 , G01J1/20 , G01N21/30
CPC分类号： C03B23/207 , C03B37/028 , C03B37/15 , H01J9/125 , H01J2201/32
摘要： An illustrative embodiment of the invention is directed to method and apparatus for manufacturing microchannel devices. Typically, the individual glass tubes in a hexagonal bundle are sealed on one end to individual hangers from which they are suspended vertically in a furnace. A vacuum is drawn within the furnace so that the inner surfaces of the tubes, exposed to atmospheric pressure, will not collapse during heating and drawing. At temperature, the bundle is drawn and elongates under the controlled forces applied through a modified Atwood''s machine to reduce the bundle cross section by a ratio of about 50 to 1. The elongated bundle is cut into lengths as it is drawn, and these individual lengths are stacked together within a tube of glass that has a higher melting point than the glass in the drawn lengths. The channels are once more sealed and the assemblies are subjected to a secondary fusion process prior to slicing into thin discs. The annular glass rings are removed from the discs and the microstructures are placed in a molten wax bath in order to fill the channels with wax before grinding and polishing. After grinding and polishing, the wax is removed.
摘要翻译： 本发明的说明性实施例涉及用于制造微通道装置的方法和装置。 通常，六边形束中的单个玻璃管的一端被密封到单独的悬挂器，它们从它们垂直悬挂在炉中。 在炉内抽真空，使得暴露于大气压力下的管的内表面在加热和拉伸过程中不会塌陷。 在温度下，束被拉伸并在通过改进的阿特伍德机器施加的受控力下伸长，以将束横截面减小大约50比1。细长的束在被拉伸时被切成长度，并且这些单独的长度 在玻璃管中堆叠在一起，其具有比拉伸长度的玻璃更高的熔点。
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公开(公告)号：US3728679A
公开(公告)日：1973-04-17
申请号：US3728679D
申请日：1971-10-21
发明人： MC INTOSH B
摘要： A device for correcting the time relationship of parallel data bits to eliminate the effect of certain forms of static skew. The apparatus accepts the data bits on parallel channels, one of which is arbitrarily designated as the ''''master channel,'''' the others being slave channels. Logic associated with the master channel generates an early gate signal upon arrival of a master channel data bit, and a late gate signal is generated, also as a result of the data bit arrival. An interval between the early gate and the late gate defines a ''''window'''' in time within which the apparatus produces a master channel data bit out, delayed by a predetermined amount, and within which the slave channel data bits should occur. If the slave channel data bits do not occur within this window, delay means in each slave channel is altered to readjust the occurence of the data bit out. Each slave channel is adjusted individually in accordance with the gate signal so that, after cyclic adjustment, the data bits are in essential coincidence. The interval between the early and late gate is adjustable by a sensitivity control to determine the accuracy of coincidence desired.
摘要翻译： 用于校正并行数据位的时间关系以消除某些形式的静态偏移的影响的装置。 该装置接受并行信道上的数据位，其中一个被任意指定为“主信道”，其他信道是从信道。 与主通道相关联的逻辑在主通道数据位到达时产生早期门信号，并且还产生后门信号，也是数据位到达的结果。 早期门和后门之间的间隔在时间上定义了“窗口”，在该窗口内设备产生主通道数据位输出，延迟预定量，并且在其中应发生从通道数据位。 如果在该窗口内没有发生从属通道数据位，则更改每个从通道中的延迟装置，以便重新调整数据位的出现位。 每个从通道根据门信号单独调整，使得在循环调整之后，数据位是必不可少的。 早期和晚期门之间的间隔可以通过灵敏度控制来调节，以确定所需的重合精度。
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公开(公告)号：US3713136A
公开(公告)日：1973-01-23
申请号：US3713136D
申请日：1970-09-16
发明人： NAGY J
CPC分类号： H03M1/52
摘要： An analog-to-digital converter of the dual slope integrating type operates without counter reset or input gating circuitry to provide successive, accurate digital readouts representing the average magnitude of corresponding analog input signals. Provision is made to nullify a predetermined number of transient waveforms which may be produced as an undesired by-product of dispensing with such circuitry. The converter employs a buffer storage register to receive and store the digital contents of a counter, which contents represent the average magnitude of the analog input signal. The storage register provides a digital readout, typically in the form of a visual display, which persists at least for a time interval which starts at the termination of one complete analog-to-digital conversion cycle and extends to the termination of a succeeding conversion cycle. In accordance with yet another aspect of this invention to polarity reversals of the analog signal, an offset current of constant magnitude is applied as an additional input signal to the integrator of the converter and appropriate compensation for that value of offset current is provided by the counter so that the display provides an indication only of the value of the analog input signal.
摘要翻译： 双斜率积分型的模数转换器在没有计数器复位或输入门控电路的情况下运行，以提供表示相应模拟输入信号的平均幅度的连续，精确的数字读数。 规定了使预定数量的瞬态波形无效，这些瞬态波形可能是作为分配这种电路的不期望的副产品而产生的。 转换器采用缓冲存储寄存器来接收和存储计数器的数字内容，该内容表示模拟输入信号的平均幅度。 存储寄存器提供数字读出，通常以视觉显示的形式，至少持续一段时间间隔，该时间间隔从一个完整的模数转换周期结束开始，并延伸到终止后续的转换周期 。 根据本发明的另一方面，为了模拟信号的极性反转，将恒定幅度的偏移电流作为附加输入信号施加到转换器的积分器，并且通过计数器提供对该偏移电流值的适当补偿 使得显示器仅提供模拟输入信号的值的指示。
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公开(公告)号：US3660796A
公开(公告)日：1972-05-02
申请号：US3660796D
申请日：1971-01-21
发明人： SOUTHWELL GEOFFREY
摘要： Fully encased adjustable resistors, typically rectilinear potentiometers, characterized by having at least two points of manipulation for adjustment. In a typical embodiment, a lead screw-operated rectilinear potentiometer has the head of the lead screw exposed at one end of the housing and is provided with an additional adjusting member the head of which is exposed through the top of the housing, the lead screw being provided with a helical gear portion and the additional adjusting member having a helical gear portion meshed therewith.
摘要翻译： 完全封装的可调电阻器，通常是直线电位器，其特征在于具有至少两个用于调节的操作点。 在典型的实施例中，导螺杆操作的直线电位器具有在壳体的一端处露出的引导螺杆的头部，并且设置有附加的调节构件，其头部通过壳体的顶部暴露，导螺杆 设置有斜齿轮部分，并且附加调节构件具有与其啮合的斜齿轮部分。
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10.发明授权Push button electrical switch interlocking structure including washer block-out mechanism 失效按钮电动开关互锁结构，包括洗衣机封闭机构
公开(公告)号：US3659061A
公开(公告)日：1972-04-25
申请号：US3659061D
申请日：1970-10-20
发明人： ANDREAGGI JOSEPH
CPC分类号： H01H9/26 , Y10T74/20244
摘要： A push-button switch of the selective or latching type. A washer block-out mechanism co-operates with a tail portion of each pushbutton to positively prevent depressing more than one pivotally mounted push button to a contact make position. The push buttons are mounted in side by side relation to each other on a shaft for pivotal movement. Latching in a switch closed position is accomplished by a latch bar common to all the push buttons. Each push button carries three movable spring arm contacts, each contact having a pair of tips electrically joined to bridge stationary contacts on a printed circuit board connectable to the switch assembly. Guides are provided to properly position the circuit board so its contacts are aligned with the movable contacts carried by the buttons. A unique contact arrangement including a contact carried by each push button provides for illuminating the button when depressed.
摘要翻译： 选择性或锁定型的按钮开关。 一个洗衣机挡块机构与每个按钮的尾部相配合，以肯定地防止将一个以上枢轴安装的按钮压到接触位置。 按钮在轴上并排安装，用于枢转运动。 开关闭合位置的锁定是通过所有按钮共用的闩锁杆实现的。 每个按钮带有三个可动弹簧臂触点，每个触点具有电连接到可连接到开关组件的印刷电路板上的桥接固定触点的一对尖端。 提供引导件以正确地定位电路板，使其触点与由按钮承载的活动触点对准。 包括由每个按钮承载的接触的独特的接触布置提供按压时照亮按钮。
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