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公开(公告)号：US3711615A
公开(公告)日：1973-01-16
申请号：US3711615D
申请日：1969-09-30
发明人： PETERSEN D , SCHWEMER W
摘要： An electric furnace adapted to be heated with a gaseous plasma, and including within the furnace a quantity of low work function material which promotes the establishment and sustenance of the gaseous plasma, said quantity being on the order of about one milligram per square centimeter of furnace area.
摘要翻译： 一种适于用气态等离子体加热的电炉，在炉内包括一些促进气体等离子体的建立和维持的低功函数材料，所述量约为每平方厘米1毫克炉 区。
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公开(公告)号：US3638128A
公开(公告)日：1972-01-25
申请号：US3638128D
申请日：1969-12-22
发明人： DOWNS ROBERT F
IPC分类号： G01R29/027 , H03D3/04
CPC分类号： G01R29/0273 , H03D3/04
摘要： Impulse noise effects on pulse-counting discriminators used for converting a frequency-modulated signal into a varying voltage are minimized by a feedback loop that controls the operation of a monostable multivibrator. In pulse-counting discriminators, voltage spikes are produced at a rate related to the frequency of a modulated signal. These spikes trigger the multivibrator that produces an output pulse of predetermined duration for each voltage spike. Output pulses from the multivibrator control the operation of a clamping circuit which, in turn, controls the operation of a ramp generator. A level detector compares the output of the ramp generator to a reference voltage signal and generates a voltage spike when the instantaneous value of the ramp generator output equals the reference signal. This voltage spike also connected to the multivibrator and triggers it to synthesize an output pulse. Operation of the clamping circuit, ramp generator and level detector in conjunction with the multivibrator synthesize an output pulse when one should appear. If the voltage spikes that trigger the multivibrator occur at a frequency in excess of an upper established limit, a second level detector compares the ramp generator output to a second reference signal. This second level detector generates a control signal to inhibit trigger pulses to the monostable multivibrator.
摘要翻译： 通过控制单稳态多谐振荡器的操作的反馈环路，将用于将频率调制信号转换为变化电压的脉冲计数鉴别器的脉冲噪声影响最小化。 在脉冲计数鉴别器中，以与调制信号的频率相关的速率产生电压尖峰。 这些尖峰触发多谐振荡器，其为每个电压尖峰产生预定持续时间的输出脉冲。 来自多谐振荡器的输出脉冲控制钳位电路的操作，其又控制斜坡发生器的操作。 电平检测器将斜坡发生器的输出与参考电压信号进行比较，并且当斜坡发生器输出的瞬时值等于参考信号时产生电压尖峰。 该电压尖峰也连接到多谐振荡器并触发它合成输出脉冲。 与多谐振荡器一起工作的钳位电路，斜坡发生器和电平检测器在出现时会合成输出脉冲。 如果触发多谐振荡器的电压尖峰以超过上限的频率发生，则第二电平检测器将斜坡发生器输出与第二参考信号进行比较。 该第二电平检测器产生控制信号以禁止对单稳态多谐振荡器的触发脉冲。
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公开(公告)号：US3831165A
公开(公告)日：1974-08-20
申请号：US19212471
申请日：1971-10-26
CPC分类号： B23K26/009 , B23K26/066 , B23K26/18 , B23K2201/007 , B41M5/283 , G01R13/204 , G09G3/02 , H01J29/10
摘要： Display devices utilize thermotropic materials for recording and displaying information. The display devices incorporate a thermochromic film disposed between a pair of electrically conductive plates, one of which is transparent. Reflectivity of the film is altered by selectively changing the temperature of discrete portions of the film, and hysteresis in the thermochromic material is relied on to retain the information stored in the film for as long as it is needed. The electrically conductive plates may be used as one means to selectively heat the film so as to enhance a thermally generated image. Also disclosed are methods for changing information recorded in such displays.
摘要翻译： 显示装置利用热致材料来记录和显示信息。 显示装置包括设置在一对导电板之间的热致变色膜，其中一个是透明的。 通过选择性地改变膜的离散部分的温度来改变膜的反射性，依赖于热变色材料中的滞后，以便在需要时保持存储在膜中的信息。 导电板可以用作选择性地加热薄膜以增强热产生图像的一种手段。 还公开了用于改变记录在这种显示器中的信息的方法。
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公开(公告)号：US3789420A
公开(公告)日：1974-01-29
申请号：US3789420D
申请日：1971-02-02
CPC分类号： B41M5/283 , G11C13/048
摘要： Disclosed is a wide bandwidth recording medium including a thermochromic material which changes reflectance with temperature. Information is recorded on the recording medium by selectively varying temperatures of discrete portions of the thermochromic material with a modulated energy beam such as a laser beam or electron beam. Techniques are described which permit extremely high resolution of data bits to be obtained in the recording medium even though the recording process is a thermal one. Apparatus is also disclosed for erasably and permanently recording information on thermochromic films.
摘要翻译： 公开了一种宽带记录介质，其包括随着温度改变反射率的热变色材料。 通过用诸如激光束或电子束的调制能量束选择性地改变热变色材料的离散部分的温度，将信息记录在记录介质上。 描述了即使记录处理是热的，也能够在记录介质中获得数据位的极高分辨率的技术。 还公开了用于在热致变色膜上可擦除地永久记录信息的装置。
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公开(公告)号：US3747204A
公开(公告)日：1973-07-24
申请号：US3747204D
申请日：1969-12-04
发明人： BEAVERS B
CPC分类号： H04R19/00 , Y10T29/49005
摘要： An acoustic transducer having the general form of a condenser microphone in which the natural resonant frequency of an edgesupported diaphragm is increased by connecting the diaphragm and backplate at places removed from the edge of the diaphragm with a liquid which is relatively immovable in response to high frequency impulses. The liquid is not resilient, but is dissipative of energy transferred thereto from the diaphragm at frequencies as low as only a few Hertz; at higher frequencies, it is functionally equivalent to a rigid connection.
摘要翻译： 一种具有电容麦克风的一般形式的声换能器，其中边缘支撑的隔膜的固有共振频率通过在隔膜和边板的边缘除去的位置处连接而使液体相对不可移动地响应于 高频脉冲。 液体不具有弹性，但是以低至几赫兹的频率从隔膜传递到其上的能量耗散; 在较高的频率下，它在功能上等同于刚性连接。
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公开(公告)号：US3655256A
公开(公告)日：1972-04-11
申请号：US3655256D
申请日：1971-01-04
发明人： CLAYTOR RICHARD N , EDEN DAYTON D
CPC分类号： G03H1/02 , B41M5/283 , G03H2001/0441 , G03H2222/16 , G03H2224/06 , G03H2240/22 , G03H2260/35 , Y10S359/90 , Y10S430/163
摘要： Disclosed are methods and apparatus for recording and reproducing optical information in thermochromic materials; exemplary materials are the ternary halides, ternary chalcogenides, and certain transition metal oxides. Methods and apparatus are also disclosed for recording holographic images with infrared radiation and reconstructing infrared holograms in the visible portion of the spectrum.
摘要翻译： 公开了用于在热变色材料中记录和再现光学信息的方法和装置; 示例性材料是三元卤化物，三元硫族化物和某些过渡金属氧化物。 还公开了用于用红外辐射记录全息图像并在光谱的可见部分重建红外全息图的方法和装置。
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7.发明授权Light beam scanning systems and beam shifting devices for use in such systems 失效用于这种系统的光束扫描系统和光束移动装置
公开(公告)号：US3804488A
公开(公告)日：1974-04-16
申请号：US18454171
申请日：1971-09-28
发明人： EDEN D
CPC分类号： G02F1/292
摘要： A light beam scanning system for deflecting a beam of light in mutually perpendicular planes having a first electro-optic device for deflecting the beam in one plane and a second electro-optic device in series with the first for deflecting the beam emergent from the first device in the same or a second plane. An optical device having a planar rectangular body of an electro-optic substance provided with aligned pairs of electrodes on opposite sides thereof which divide the body into serial prism portions through which a beam of light directed on one end of the body passes successively to cause shifting of the angle of the beam as it emerges through the other end of the body.
摘要翻译： 一种光束扫描系统，用于在具有第一电光装置的相互垂直的平面中偏转光束，用于使光束在一个平面中偏转，第二电光装置与第一电光装置串联，用于使光束从第一装置偏转 在同一或第二平面。 一种具有电光物质的平面矩形体的光学器件，其在其相对侧上设置有对准的电极对，其将本体分成串联的棱镜部分，通过该棱镜部分，导向身体的一端的光束通过该棱镜部分顺序地通过， 当光束通过身体的另一端出现时的角度。
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公开(公告)号：US3651423A
公开(公告)日：1972-03-21
申请号：US3651423D
申请日：1970-06-24
发明人： SEWELL KENNETH G
CPC分类号： H03B9/12 , H01L47/023
摘要： Disclosed is a Gunn-effect device which is sensitive to light, comprising a semiconductor such as a crystal of N-type gallium arsenide having high-resistance, alloyed contacts of, for example, indium and gold, characterized by the capability of being switched on and off by regulating the bias voltage across the crystal and the incident light on narrow portions of the crystal. In particular, incident light on the domain-forming and domain-terminating portions of the crystal is adjusted as to selectively foster or inhibit oscillation of the crystal.
摘要翻译： 公开了一种对光敏感的Gunn效应器件，其包括具有高电阻，例如铟和金的合金触点的N型砷化镓晶体的半导体，其特征在于能够被接通 并且通过调节晶体两端的偏置电压和晶体的窄部分上的入射光而关闭。 特别地，调整晶体的区域形成和畴结束部分上的入射光以选择性地促进或抑制晶体的振荡。
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公开(公告)号：US3647551A
公开(公告)日：1972-03-07
申请号：US3647551D
申请日：1966-11-07
CPC分类号： H01M4/0471 , H01M4/04 , H01M4/043 , H01M4/96
摘要： A METHOD OF MAKING A MONOLITHIC CARBON MATERIAL HAVING A METALLIC ACTIVATOR OR THE LIKE UNIFORMLY DISTRIBUTED THROUGHOUT THE FINISHED MATERIAL, INCLUDING THE STEPS OF PREPARING A DRY MIXTURE OF POLYVINYLIDENE CHLORIDE AND THE DESIRED METALLIC ACTIVATOR (OR A PRECURSOR THEREFOR), AND THEN PRYOLYZING THE MIXTURE. THE CARBON MATERIAL MAY BE USED AS A BATTERY ELECTRODE, FUEL CELL ELECTRODE, ETC., AND THE METALLIC ACTIVATOR IS SELECTED FROM THE GROUP INCLUDING TUNGSTEN, SILVER, GOLD COPPER, TANTALUM, NICKEL, ETC. AN OPTIONAL STEP IN THE PROCESS INVOLVES GRINDING A MIXTURE OF PARTICLES OF POLYVINYLIDENE CHLORIDE AND A DESIRED METAL WITH PIECES OF SOLID CARBON DIOXIDE OF THAT THE POLYVINYLDENE CHLORIDE WILL BE REUCE IN SIZE AND NOT JUST DEFORMED DURING GRINDING.
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公开(公告)号：US3598081A
公开(公告)日：1971-08-10
申请号：US3598081D
申请日：1968-11-29
发明人： HOUTEN JOHN J VAN
CPC分类号： G10K7/06
摘要： A noise generator capable of producing random, wide-frequency band noise and in which at least one jet of air is directed against a surface of a body such that the air jet is broken up into intense turbulence and such that noise is produced. In a preferred embodiment, the body is immovably located within the throat of an acoustic horn, and air jets directed against the body produce noise which is efficiently coupled, by the horn, with the atmosphere ambient to the horn mouth.
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