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公开(公告)号：US4037159A
公开(公告)日：1977-07-19
申请号：US520060
申请日：1974-11-01
申请人： Albert R. Martin
发明人： Albert R. Martin
摘要： A communication system that is difficult to jam has a transmitter transmitting successive chirp signals, which start at different initial frequencies and all have the same frequency - time slope. At the transmitter successive selections are made from among the different available chirp signal frequencies in accordance with a predetermined pseudorandom program that is known at the receiving station. The receiver has a chirp matched filter capable of receiving all of the different chirps but, being a distributed filter, it delays the different received chirps by differing amounts depending upon the initial frequency of each chirp. The output of the chirp filter is envelope-detected, and the resulting pulse signal is passed through a time gate that is gated on at a time that is selected in accordance with the predetermined program. The system has advantages for anti-jam communications, multiple-access communications, frequency diversity radio, and coding using multiple frequencies, as examples. The chirp matched filter is conveniently a surface wave device.
摘要翻译： 具有难以阻塞的通信系统具有发射机发送连续的啁啾信号，该信号从不同的初始频率开始并且都具有相同的频率 - 时间斜率。 在发射机处，根据在接收站处已知的预定伪随机程序，从不同可用啁啾信号频率中进行连续选择。 接收器具有能够接收所有不同啁啾声的啁啾匹配滤波器，但是作为分布式滤波器，其根据每个啁啾的初始频率将不同的接收啁啾延迟不同的量。 啁啾滤波器的输出被包络检测，并且所得到的脉冲信号通过在根据预定程序选择的时间被选通的时间门。 作为示例，该系统具有抗干扰通信，多址通信，频率分集无线电和使用多个频率的编码的优点。 啁啾匹配滤波器方便地是表面波装置。
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公开(公告)号：US4900877A
公开(公告)日：1990-02-13
申请号：US218417
申请日：1988-07-12
申请人： Robert S. Dubrow , Christine J. Holland , Randolph W. Chan , Albert R. Martin , Dennis C. Siden , Paul B. Germeraad
发明人： Robert S. Dubrow , Christine J. Holland , Randolph W. Chan , Albert R. Martin , Dennis C. Siden , Paul B. Germeraad
IPC分类号： H05K9/00
CPC分类号： H05K9/0015
摘要： This invention provides E.M.I. gaskets for electrically shielding and environmentally sealing the space between two surfaces which comprises a metallic electrically conductive deformable structure adapted for forming electrical contact with said surfaces and/or providing electrical shielding in the space between said surfaces; and a gel material for sealing the space between said surfaces having a cone penetration value of about 100 to about 350 (10.sup.-1 mm) and an ultimate elongation of at least 200% and being present in sufficient amount and positioned to provide environmental seal between said surfaces and to provide environmental protection for said metallic structure. The gel may encapsulate the entire metallic structure so that portions of the metallic structure pierces through the gel when the gasket is installed to make electrical contact. Alternatively portions of the metallic structure may extend beyond the surface of the gel and the gel deforms to cover exposed portions of the metallic structure when the gasket is installed. The gasket of this invention provides moisture seal and is resistant to corrosion.
摘要翻译： 本发明提供E.M.I. 用于电屏蔽和环境地密封两个表面之间的空间的垫圈，其包括适于与所述表面形成电接触和/或在所述表面之间的空间中提供电屏蔽的金属导电可变形结构; 以及用于密封所述表面之间的空间的凝胶材料，其具有约100至约350（10-1mm）的锥形穿透值和至少200％的极限伸长率并且以足够的量存在并定位成在 并为所述金属结构提供环境保护。 凝胶可以封装整个金属结构，使得当安装垫圈以进行电接触时，金属结构的部分穿透凝胶。 或者，金属结构的部分可以延伸超过凝胶的表面，并且当安装垫圈时，凝胶变形以覆盖金属结构的暴露部分。 本发明的垫圈提供湿气密封并且耐腐蚀。
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公开(公告)号：US4347487A
公开(公告)日：1982-08-31
申请号：US210202
申请日：1980-11-25
申请人： Albert R. Martin
发明人： Albert R. Martin
CPC分类号： H01B11/146
摘要： A high frequency attenuation cable which includes: a conductor; a high frequency absorption medium surrounding the conductor for attenuating high frequency energy through the cable; dielectric surrounding the absorption medium; electrical shielding surrounding the dielectric confining the high frequency energy to the absorption medium; and electrically conductive outer jacketing surrounding the shielding preventing the shielding from becoming a high frequency transmission line.
摘要翻译： 一种高频衰减电缆，包括：导线; 围绕导体的高频吸收介质，用于衰减通过电缆的高频能量; 围绕吸收介质的电介质; 围绕介质的电屏蔽将高频能量限制在吸收介质上; 以及围绕屏蔽的导电外护套，防止屏蔽变成高频传输线。
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4.发明授权Process and apparatus involving a cutting wire spooling system for cutting brick and tile 失效包括用于切割砖瓦的切割线绕线系统的工艺和设备
公开(公告)号：US4316866A
公开(公告)日：1982-02-23
申请号：US191247
申请日：1980-09-26
申请人： Albert R. Martin
发明人： Albert R. Martin
CPC分类号： B28B17/0036 , B28B11/14 , Y02P40/63
摘要： Cutting wire for a brick and tile cutting and setting machine is wound on supply spools. A plurality of the supply spools are mounted below the cutting frame of the machine. The supply spools are braked to prevent rotation by inflatable brake hoses. When the hoses are inflated, they push against the spool. The wire from the supply spool extends across the cutting frame to a take up spool. The take up spools are mounted on a shaft for rotation. After a set number of bricks have been processed, the wire is spooled from the supply spool to the take up spool so that new, unworn wire is stretched across the cutting frame. The wire on the supply spools is held in place by a flat spring which prevents the wire from unwinding.
摘要翻译： 用于砖瓦切割和定型机的切割线缠绕在供应线轴上。 多个供给线轴安装在机器的切割框架的下方。 供应线轴被制动以防止充气制动软管旋转。 当软管膨胀时，它们推向阀芯。 来自供应卷轴的电线穿过切割框架延伸到卷取卷轴。 卷取卷轴安装在轴上旋转。 在处理了一定数量的砖块之后，将电线从供应卷轴卷绕到卷取卷轴，以便将新的未磨损的导线拉过切割框架。 电源线轴上的电线通过扁平弹簧保持在适当位置，防止电线松开。
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公开(公告)号：US4499438A
公开(公告)日：1985-02-12
申请号：US417954
申请日：1982-09-14
CPC分类号： H01B11/10 , H01B11/146
摘要： Disclosed is a high frequency attenuation core and cable. The core includes a conductor surrounded by a high frequency energy absorbing medium, then surrounded by a dielectric, and then surrounded by an outer layer made from a material having a high complex dielectric constant. The cable includes the above described core surrounded by an electromagnetic interference (EMI) shield which is further surrounded by a conductive layer. The cable and core as described above may be used in harness applications wherein a plurality of cores and/or cables as described above are surrounded by a gross shield. In addition, when the cores described above are used in multi-core applications, they may individually include an additional EMI shield for greater electromagnetic interference protection.
摘要翻译： 公开了一种高频衰减芯和电缆。 芯包括由高频能量吸收介质围绕的导体，然后由电介质围绕，然后被由具有高复合介电常数的材料制成的外层包围。 电缆包括被电磁干扰（EMI）屏蔽围绕的上述芯，该屏蔽被导电层进一步包围。 如上所述的电缆和芯可以用在线束应用中，其中如上所述的多个芯和/或电缆被总屏蔽包围。 此外，当将上述核心用于多核应用时，它们可以单独地包括用于更大的电磁干扰保护的额外的EMI屏蔽。
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公开(公告)号：US4486721A
公开(公告)日：1984-12-04
申请号：US328346
申请日：1981-12-07
摘要： Disclosed is a high frequency attenuation core and cable. The core includes a conductor surrounded by a high frequency energy absorbing medium, then surrounded by a dielectric, and then surrounded by an outer layer made from a material having a high complex dielectric constant. The cable includes the above described core surrounded by an electromagnetic interference (EMI) shield which is further surrounded by a conductive layer. The cable and core as described above may be used in harness applications wherein a plurality of cores and/or cables as described above are surrounded by a gross shield. In addition, when the cores described above are used in multi-core applications, they may individually include an additional EMI shield for greater electromagnetic interference protection.
摘要翻译： 公开了一种高频衰减芯和电缆。 芯包括由高频能量吸收介质围绕的导体，然后由电介质围绕，然后被由具有高复合介电常数的材料制成的外层包围。 电缆包括被电磁干扰（EMI）屏蔽围绕的上述芯，该屏蔽被导电层进一步包围。 如上所述的电缆和芯可以用在线束应用中，其中如上所述的多个芯和/或电缆被总屏蔽包围。 此外，当将上述核心用于多核应用时，它们可以单独地包括用于更大的电磁干扰保护的额外的EMI屏蔽。
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公开(公告)号：US746360A
公开(公告)日：1903-12-08
申请号：US1898699893
申请日：1898-12-21
申请人： ALBERT R MARTIN , JOHN R BOOK , REINHOLD HERMAN
发明人： MCADAMS SYLVESTER L
CPC分类号： F16L27/04 , Y10T403/32032
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公开(公告)号：US06922131B2
公开(公告)日：2005-07-26
申请号：US10716315
申请日：2003-11-17
摘要： An electrical device suitable for use in digital telecommunications applications is provided. The device includes a laminar PTC element composed of a conductive polymer composition sandwiched between two metal foil electrodes. A first insulating layer which is composed of an electrically insulating flexible material conforms to at least part of the perimeter of the PTC element. The device has low resistance, low capacitance, reduced size, and stable resistance, and can meet power cross testing requirements. In addition, assemblies of electrical devices are provided.
摘要翻译： 提供适用于数字电信应用的电气设备。 该装置包括由夹在两个金属箔电极之间的导电聚合物组合物构成的层状PTC元件。 由电绝缘的柔性材料组成的第一绝缘层符合PTC元件的至少一部分周长。 该器件电阻低，电容小，尺寸小，电阻稳定，可满足电力交叉测试要求。 此外，还提供了电气装置的组件。
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公开(公告)号：US772976A
公开(公告)日：1904-10-25
申请号：US1904193390
申请日：1904-02-13
申请人： ALBERT R MARTIN , SWARTZ ALBERT L
发明人： SWARTZ ALBERT L
CPC分类号： G03B17/045
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