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公开(公告)号：US4577140A
公开(公告)日：1986-03-18
申请号：US653984
申请日：1984-09-24
CPC分类号： G05D1/0265
摘要： Apparatus for guiding a trackless vehicle along an A.C. conductor marking a roadway, having at least two sensors to detect a magnetic field emanating from the current conductor the output signals of which are routed to interpretive electronics. The interpretive electronics include a phase-locked loop (PPL) the input signal to which is the output signal of one of the sensors, and the output signal of which is used for demodulation, by mixers, of the sensor signals.
摘要翻译： 用于沿着标示道路的交流导体引导无轨道车辆的装置，具有至少两个传感器以检测从当前导体发出的磁场，其输出信号被路由到解释电路。 解释电路包括一个输入信号的输入信号（PPL），其中一个传感器的输出信号，其输出信号用于由传感器信号的混频器进行解调。
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公开(公告)号：US4876743A
公开(公告)日：1989-10-24
申请号：US127827
申请日：1987-12-01
CPC分类号： H04B7/0814
摘要： The invention relates to a signal diversity arrangement for a mobile reception, comprising a receiver and a diversity processor, which receives the input signals and applies a different input signal to the receiver when interference occurs. The diversity processor comprises an interference detector operating in the analog mode and a comparator, to whose first input is applied the output signal of the interference detector and to whose senond input is applied a suitably set voltage V1. The comparator shows on its output the occurence of interference by way of a binary signal when the threshold voltage V at the second input is exceeded. No less than one integrator is available having a discharging time constant, to whose input is applied a signal derived from the interference signal and whose time of integration is equal to the switching interval of one of the input signals and whose output signal is added to either the interference signal at the first comparator input such that when the interference is increased the total voltage at the first input of the comparator is increased also, or the output signal is applied to the second comparator input such that the threshold voltage is lowered when the interference rises. In the case of a series of integrators whose inputs each receive a signal derived from the interference signal of the associated input signal, the output signals of these integrators are each time applied to one of the comparator inputs and the threshold voltage V is changed each time in accordance with the interference signal during the switching interval.
摘要翻译： 本发明涉及一种用于移动接收的信号分集装置，包括接收机和分集处理器，其在发生干扰时接收输入信号并向接收机施加不同的输入信号。 分集处理器包括以模拟模式操作的干扰检测器和比较器，其第一输入端被施加于干扰检测器的输出信号，并且施加适当设定的电压V1。 当超过第二输入端的阈值电压V时，比较器通过二进制信号显示其输出的干扰发生。 不少于一个具有放电时间常数的积分器，其输入端施加从干扰信号导出的信号，其积分时间等于其中一个输入信号的开关间隔，并将其输出信号加到 第一比较器输入处的干扰信号，使得当干扰增加时，比较器的第一输入处的总电压也增加，或者输出信号被施加到第二比较器输入，使得当干扰时阈值电压降低 上升。 在一系列积分器的输入各自接收从相关输入信号的干扰信号导出的信号的情况下，这些积分器的输出信号每次都被施加到比较器输入之一，并且阈值电压V每次改变 根据切换间隔期间的干扰信号。
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公开(公告)号：US4114623A
公开(公告)日：1978-09-19
申请号：US709610
申请日：1976-07-29
申请人： Hans Heinrich Meinke , Gerhard Flachenecker , Karl Fastenmeier , Friedrich Landstorfer , Heinz Lindenmeier
发明人： Hans Heinrich Meinke , Gerhard Flachenecker , Karl Fastenmeier , Friedrich Landstorfer , Heinz Lindenmeier
CPC分类号： A61B18/00 , A61B18/1206 , A61B2018/00642 , A61B2018/00702 , A61B2018/00827 , A61B2018/00857 , A61B2018/00892 , A61B2018/124
摘要： A device and system for the cutting and/or coagulation of human tissue with the use of high frequency currents. This invention is used to cut materials similar to the human tissue which can emit steam or gassy products when sufficiently heated. It controls the extent of the arc generated during the cutting operation, and controls the heat generated during the coagulating operation, both of these for the purpose of minimizing formation of harmful forms of albumen.
摘要翻译： 一种用于使用高频电流切割和/或凝结人体组织的装置和系统。 本发明用于切割类似于人体组织的材料，当充分加热时可以发出蒸汽或高级产品。 它控制在切割操作期间产生的电弧的程度，并且控制在凝结操作期间产生的热量，这两者都是为了最小化形成有害形式的蛋白的目的。
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公开(公告)号：US3942119A
公开(公告)日：1976-03-02
申请号：US446533
申请日：1974-02-27
CPC分类号： H03H11/346
摘要： An antenna has two output terminals and is operative for receiving electromagnetic radiation and converting the same into electrical signals appearing across the two antenna output terminals. There are provided a first and a second transmission channel, each having a respective input comprised of a pair of input terminals, and respectively operative for transmitting electrical signals having frequencies lying in a predetermined first frequency range and in a predetermined higher second frequency range, one of the input terminals of the first channel being connected to one of the two antenna output terminals. A transformer includes a primary winding connecting the other of the input terminals of the first channel to the other of the two antenna output terminals. The transformer further includes a secondary winding connected across the two input terminals of the second transmission channel. The transformer is operative when the frequency of the electrical signal across the antenna output terminals is in the aforementioned first range for stepping down the input impedance of the second channel as reflected into the circuit of the primary winding to a value lower than the value of the input impedance of said first transmission channel at such frequency.
摘要翻译： 天线具有两个输出端子，并且用于接收电磁辐射并将其转换成跨越两个天线输出端子出现的电信号。 提供了第一和第二传输信道，每个传输信道具有包括一对输入端的相应输入，并且分别用于发送具有处于预定的第一频率范围和预定的较高的第二频率范围的频率的电信号，一个 的第一通道的输入端子连接到两个天线输出端子之一。 变压器包括将第一通道的另一个输入端子连接到两个天线输出端子中的另一个的初级绕组。 变压器还包括连接在第二传输通道的两个输入端上的次级绕组。 当跨越天线输出端子的电信号的频率处于上述第一范围内时，变压器工作，以将第一通道的电路中反射的第二通道的输入阻抗降低到低于 在这种频率下所述第一传输信道的输入阻抗。
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5.发明授权High-frequency generator for tissue cutting and for coagulating in high-frequency surgery 失效用于组织切割和高频手术凝固的高频发生器
公开(公告)号：US5108391A
公开(公告)日：1992-04-28
申请号：US347708
申请日：1989-05-05
IPC分类号： A61B18/12
CPC分类号： A61B18/1206 , A61B2018/00767 , A61B2018/00857 , A61B2018/00892
摘要： The invention relates to a high-frequency generator with automatic power control for tissue cutting and for coagulating in high-frequency surgery. The power control in the "cutting" mode of operation is effected with an arc control system for keeping the arc burning between the surgical probe and the tissue constant. The high-frequency generator contains a voltage-limiting circuit, which limits the output voltage to a preset maximum value if the arc control system were to adjust a higher voltage.The advantage of the invention lies is a reduction of the mean power delivered to the patient as compared with a high-frequency generator that contains only an arc control system. The cutting quality is not adversely influenced by the power reduction.
摘要翻译： 本发明涉及一种具有自动功率控制的高频发生器，用于组织切割和用于高频手术中的凝固。 “切割”操作模式中的功率控制通过用于保持外科手术探针和组织之间的电弧燃烧恒定的电弧控制系统来实现。 高频发生器包含一个限流电路，如果电弧控制系统要调整较高的电压，则可将输出电压限制在预设的最大值。 与仅包含电弧控制系统的高频发生器相比，本发明的优点在于减少了传递给患者的平均功率。 切割质量不会受到功率降低的不利影响。
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6.发明授权High-frequency generator with automatic power-control for high-frequency surgery 失效高频发生器具有自动功率控制功能，适用于高频手术
公开(公告)号：US4818954A
公开(公告)日：1989-04-04
申请号：US11781
申请日：1987-02-06
CPC分类号： H03L5/02 , A61B18/1206 , A61B2018/00702 , A61B2018/00857 , A61B2018/00869
摘要： A high-frequency generator having automatic power-control for use in high-frequency surgery. The frequency of a high-frequency generator is adjustable by electronic circuit brought by a control circuit to a value such that at the output of the power amplifier there is an optimal phase relation between output voltage and output current, i.e., generally a phase shift of zero. The signal necessary for the control of the output power is obtained from harmonic oscillations generated by the arc at the surgical probe. A harmonic-measuring device to obtain the harmonic oscillations generated by the arc at the surgical probe has a phase-controlled rectifier which is controlled by the oscillator of the high-frequency generator. A simple filter is used at the output of the power amplifier, and the measurement filter used before the harmonic-measuring device can either be completely eliminated or need only be very simple in construction. No complicated filter adjustment is necessary and the power generator operates under optimal conditions and exhibits enhanced operating reliability.
摘要翻译： 具有自动功率控制功能的高频发生器，用于高频手术。 高频发生器的频率可以通过由控制电路带来的电子电路来调节，使得在功率放大器的输出处存在输出电压和输出电流之间的最佳相位关系，即通常是相位偏移 零。 用于控制输出功率所需的信号由外科手术探针上的电弧产生的谐波振荡获得。 用于获得手术探针上的电弧产生的谐波振荡的谐波测量装置具有由高频发生器的振荡器控制的相控整流器。 在功率放大器的输出端使用简单的滤波器，在谐波测量装置之前使用的测量滤波器可以完全消除，或者只需要非常简单的结构。 不需要复杂的滤波器调节，并且发电机在最佳条件下运行并且表现出增强的操作可靠性。
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公开(公告)号：US4653116A
公开(公告)日：1987-03-24
申请号：US693800
申请日：1985-01-23
CPC分类号： H04B1/1027 , H03D3/00
摘要： A detector for indicating reception disturbances during ultrashort wave broadcast reception by demodulating of intermediate frequency signals has a frequency modulated demodulator with a demodulation characteristic line formed so that a controlling region within which the output signal increases with increasing frequency deviation from a carrier frequency extends advantageously over the entire band width of the ultrashort wave intermediate frequency channel and is significantly greater than the maximum frequency deviation of the intermediate frequency carrier modulated with the basic band signal in the frequency, and the output signal of the frequency demodulator is supplied to an evaluating circuit at whose output the exceeding of a predetermined frequency disturbance deviation threshold is indicated by a logic signal.
摘要翻译： 用于通过解调中频信号来指示在超短波广播接收期间的接收干扰的检测器具有频率调制解调器，其具有形成的解调特性线，使得其中输出信号随着与载波频率偏差的增加而增加的控制区域有利地超过 超短波中频通道的整个带宽，并且明显大于用频率中的基本频带信号调制的中频载波的最大频率偏差，并且频率解调器的输出信号被提供给评估电路 其输出超过预定频率干扰偏差阈值由逻辑信号指示。
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8.发明授权Detector for indicating reception disturbances during ultrashort wave broadcast reception 失效用于在超短波广播接收期间指示接收干扰的检测器
公开(公告)号：US4777659A
公开(公告)日：1988-10-11
申请号：US9115
申请日：1987-01-28
IPC分类号： H04B1/10
CPC分类号： H04B1/10
摘要： A detector for indicating reception disturbances during frequency modulated ultrashort wave broadcast reception, particularly in power vehicles, has a detector for indicating frequency disturbance deviations in high frequency or intermediate frequency carriers and an amplitude modulation detector for indicating disturbance amplitude modulation in the high frequency or intermediate frequency carrier, and an evaluating circuit with two inputs arranged so that the output signals of the detectors are supplied to the respective inputs of the evaluating circuit and an output signal of the evaluating circuit depends both on the disturbance amplitude modulation and the frequency disturbance deviation.
摘要翻译： 用于指示频率调制的超短波广播接收期间的接收干扰的检测器，特别是在动力车辆中，具有用于指示高频或中频载波中的频率干扰偏差的检测器和用于指示高频或中间的干扰幅度调制的幅度调制检测器 频率载波和具有两个输入的评估电路，其布置成使得检测器的输出信号被提供给评估电路的相应输入，并且评估电路的输出信号都取决于干扰幅度调制和频率干扰偏差。
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公开(公告)号：US4667342A
公开(公告)日：1987-05-19
申请号：US589284
申请日：1984-03-14
摘要： A tunable receiver input circuit consists of an emitter follower amplifying circuit with a resonant circuit connected between emitter and ground. The impedance of the resonant circuit is high at frequencies away from the resonant frequency. The mixer circuit is connected to the collector of the amplifying circuit, so that unwanted second and third order noise products are suppressed.
摘要翻译： 可调谐接收器输入电路由射极跟随器放大电路组成，其中谐振电路连接在发射极和地之间。 谐振电路的阻抗在远离谐振频率的频率处较高。 混频器电路连接到放大电路的集电极，从而抑制不希望的二阶和三阶噪声产物。
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公开(公告)号：US4602260A
公开(公告)日：1986-07-22
申请号：US604312
申请日：1984-04-26
CPC分类号： H01Q1/1271 , H01Q23/00
摘要： An active windshield antenna has a first conductor extending parallel to a metal frame to the vertical line of symmetry of the latter, a second conductor extending in a bending point from said first conductor along the symmetry line, an amplifier has separate transmission paths for a low frequent low medium short wave region and ultra short wave region, the transmission path of the long medium short wave region at an inlet of the low medium short wave amplifier has a high input impedance, and the input impedance of the total amplifier in the low medium short frequency region is high.
摘要翻译： 主动挡风玻璃天线具有平行于金属框架延伸到垂直对称线的第一导体，第二导体沿着对称线从所述第一导体沿弯曲点延伸，放大器具有用于低电平的单独传输路径 频率低的中短波区域和超短波段，低介质短波放大器入口处的长中短波区域的传输路径具有高输入阻抗，而低介质中总放大器的输入阻抗 短频区高。
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