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1.发明公开Surface acoustic wave device and communication system using the same 失效AkustischeOberflächenwellenanordnungundÜbertragungssystemdamit
公开(公告)号：EP0747850A1
公开(公告)日：1996-12-11
申请号：EP95108919.2
申请日：1995-06-09
发明人： Mochizuki, Norihiro , Torisawa, Akira , Egara, Koichi , Eguchi, Tadashi , Koyama, Akihiro , Hachisu, Takahiro
摘要： A surface acoustic wave device is provided with at least two exciting electrodes 2 and 3 for exciting first and second surface acoustic waves on a piezoelectric substrate 1, a surface acoustic wave waveguide 4 for propagating therethrough the first and second surface acoustic waves excited by the exciting electrodes in opposite directions, output means 5 for taking out a signal generated by the surface acoustic wave waveguide 4, and an electrode junction portion 6 electrically connecting the surface acoustic wave waveguide and the output means together, and is characterized in that the width of a portion in which the electrode junction portion 6 is in contact with the surface acoustic wave waveguide 4 is within a range of 0.2 to 5 times the wavelength of the first and second surface acoustic waves.
摘要翻译： 表面声波装置设置有至少两个用于激励压电基板1上的第一和第二声表面波的激励电极2和3，用于在其中传播通过激发的第一和第二声表面波的表面声波波导4 相反方向的电极，用于取出由声表面波导管4产生的信号的输出装置5和将声表面波导和输出装置电连接在一起的电极接合部分6，其特征在于， 电极接合部6与声表面波导4接触的部分在第一和第二声表面波的波长的0.2〜5倍的范围内。
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2.发明授权Surface acoustic wave convolver with dielectric film of high non-linear effect 失效表面具有高非线性效应电介质膜的声表面波卷积。
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3.发明授权Surface acoustic wave convolver with plural wave guide paths for generating convolution signals of mutually different phases 失效表面具有多个波导路径，具有彼此不同的相位的生产折叠信号的声表面波卷积
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公开(公告)号：EP0351832A3
公开(公告)日：1990-11-22
申请号：EP89113272.2
申请日：1989-07-19
发明人： Yoshinaga, Kazuo , Kai, Takashi , Egara, Koichi , Toshida, Yomishi , Mitsutake, Hideaki , Sato, Koichi , Miyazaki, Takeshi
IPC分类号： G02F1/35
CPC分类号： G02F1/3615 , C09K19/38 , C09K19/3857 , C09K19/3866
摘要： A nonlinear optical material is provided by mixing a polymer liquid crystal having a chiral center and a nonlinear optical compound. The polymer liquid crystal may be a ferroelectric polymer liquid crystal. The nonlinear optical material is preferably in the form of a solid solution. A nonlinear optical device is formed by orienting the nonlinear optical material to provide an optical member.
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5.发明公开Surface acoustic wave convolver with plural wave guide paths for generating convolution signals of mutually different phases 失效表面具有用于具有相互不同相位的生产折叠信号的多个波导路径的声表面波卷积。
公开(公告)号：EP0373404A2
公开(公告)日：1990-06-20
申请号：EP89121721.8
申请日：1989-11-24
IPC分类号： G06G7/195
CPC分类号： G06G7/195
摘要： A surface acoustic wave convolver comprises a piezoelectric substrate (1), plural input transducers (12-1, 12-2) formed on the substrate and adapted to respectively generate surface acoustic waves in response to input signals, plural wave guide paths (13S,13L) parallelly provided on the substrate in a superposing area of the surface acoustic wave generated by the input transducers to each generate a convolution signal of the input signals by non-linear interaction of the surface acoustic waves therein, wherein the convolution signals generated in neighboring wave guide paths are mutually different by 180° in phase, and wherein the wave guide paths are adapted to generate surface acoustic waves corresponding to the convolution signals and an output transducer (14) for receiving the surface acoustic waves generated by the wave guide paths and for converting the convolution signals into an output electrical signal.
摘要翻译： 一种声表面波卷积器包括压电基片（1），形成在所述基板和angepasst多个输入换能器（12-1，12-2），以分别产生响应于输入信号，多个波导路径（13S表面声波， 13L）在由输入换能器产生的每个在其中产生由表面声波的非线性相互作用的输入信号的卷积信号的表面声波的重叠区域平行设置在基板，worin卷积信号在周边产生 波导路径是通过在相180°相互不同，和worin波导路径angepasst以产生表面声波对应于卷积信号，并输出换能器（14），用于接收由所述波导路径中产生的表面声波和 用于将信号转换成卷积，以输出电信号。
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公开(公告)号：EP0747850B1
公开(公告)日：2002-03-20
申请号：EP95108919.2
申请日：1995-06-09
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公开(公告)号：EP0351832B1
公开(公告)日：1995-01-25
申请号：EP89113272.2
申请日：1989-07-19
发明人： Yoshinaga, Kazuo , Kai, Takashi , Egara, Koichi , Toshida, Yomishi , Mitsutake, Hideaki , Sato, Koichi , Miyazaki, Takeshi
IPC分类号： G02F1/35
CPC分类号： G02F1/3615 , C09K19/38 , C09K19/3857 , C09K19/3866
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8.发明公开Surface acoustic wave convolver with dielectric film of high non-linear effect 失效具有高非线性效应的电介质膜的表面声波波纹管
公开(公告)号：EP0282978A3
公开(公告)日：1990-03-07
申请号：EP88104125.5
申请日：1988-03-15
IPC分类号： G06G7/195
CPC分类号： G06G7/195
摘要： In a surface acoustic wave elastic convolver capable of showing sufficiently high convolution efficiency with a simple structure, the convolver comprises a piezoelectric substrate, plural input transducers formed on the substrate for respectively generating surface acoustic waves corresponding to input signals, an output transducer for obtaining a convolution signal of the input signals, from a surface acoustic wave generated by interference, based on a non-linear effect, of the surface acoustic waves generated by those input transducers, and a dielectric film of a non-linear effect larger than that of the substrate, formed on the substrate in at least an area where the output transducer is formed.
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9.发明公开Matched filter, reception device and communication system using the same 失效Angepasstes过滤器，Empfangseinrichtung und Kommunikationssystem mit solch einem Filter
公开(公告)号：EP0756376A1
公开(公告)日：1997-01-29
申请号：EP96111858.5
申请日：1996-07-23
发明人： Eguchi, Tadashi , Torisawa, Akira , Egara, Koichi , Koyama, Akihiro , Hachisu, Takahiro , Yokota, Akane
IPC分类号： H03H9/64
CPC分类号： H03H9/6406
摘要： A matched filter has an input IDT and an output IDT, and also has a device for preventing propagating surface acoustic waves from diverging. By preventing the divergence of surface acoustic waves, signals obtained in units of electrode finger pairs of the output IDT are uniformed. Furthermore, this application also discloses the following arrangement. That is, an arrangement for converging surface acoustic waves is adopted, and the width of surface acoustic waves input to the output IDT is set to be larger than at least the crossing width of electrode fingers, nearest to the input IDT, of those of the output IDT, so that some surface acoustic waves propagate along non-crossing portions of the electrode fingers, on the input IDT side, of those of the output IDT. With this arrangement, the influence of the crossing portions of the electrode fingers, closer to the input IDT, on the surface acoustic waves input to the crossing portions of the electrode fingers, farther from the input IDT, can be relaxed.
摘要翻译： 匹配滤波器具有输入IDT和输出IDT，并且还具有用于防止传播表面声波发散的装置。 通过防止表面声波的发散，以输出IDT的电极手指对为单位获得的信号是均匀的。 此外，本申请还公开了以下配置。 也就是说，采用用于会聚表面声波的布置，并且输入到输出IDT的表面声波的宽度被设定为大于至少与最接近输入IDT的电极指的交叉宽度 输出IDT，使得一些表面声波沿输出IDT侧的电极指的非交叉部分传播。 通过这种布置，可以放宽输入到距离输入IDT的电极指的交叉部分交叉部分的声表面波更靠近输入IDT的电极指的交叉部分的影响。
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10.发明公开Surface acoustic wave convolver with plural wave guide paths for generating convolution signals of mutually different phases 失效表面声波波形转换器，用于生成不同相位的变换信号的多波导波导
公开(公告)号：EP0373404A3
公开(公告)日：1991-03-20
申请号：EP89121721.8
申请日：1989-11-24
IPC分类号： G06G7/195
CPC分类号： G06G7/195
摘要： A surface acoustic wave convolver comprises a piezoelectric substrate (1), plural input transducers (12-1, 12-2) formed on the substrate and adapted to respectively generate surface acoustic waves in response to input signals, plural wave guide paths (13S,13L) parallelly provided on the substrate in a superposing area of the surface acoustic wave generated by the input transducers to each generate a convolution signal of the input signals by non-linear interaction of the surface acoustic waves therein, wherein the convolution signals generated in neighboring wave guide paths are mutually different by 180° in phase, and wherein the wave guide paths are adapted to generate surface acoustic waves corresponding to the convolution signals and an output transducer (14) for receiving the surface acoustic waves generated by the wave guide paths and for converting the convolution signals into an output electrical signal.
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