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1.发明公开Surface acoustic wave element for coupling surface acoustic wave with waveguide at high efficiency, method for designing it, and signal receiver and communication system using it 失效用于通信系统中与波导的声表面波的高效耦合，以用于它的设计流程，以及信号接收器，并与该元件的表面声波装置。
公开(公告)号：EP0617510A1
公开(公告)日：1994-09-28
申请号：EP94104438.0
申请日：1994-03-21
发明人： Eguchi, Tadashi, c/o Canon Kabushiki Kaisha , Torisawa, Akira, c/o Canon Kabushiki Kaisha , Mochizuki, Norihiro, c/o Canon Kabushiki Kaisha , Egara, Koichi, c/o Canon Kabushiki Kaisha , Koyama, Akihiro, c/o Canon Kabushiki Kaisha , Hachisu, Takahiro, c/o Canon Kabushiki Kaisha
摘要： A surface acoustic wave element includes a piezoelectric substrate (10), a waveguide (14) provided on the piezoelectric substrate to guide a surface acoustic wave therethrough, and an input transducer (11) provided on said piezoelectric substrate to generate the surface acoustic wave. The input transducer is arranged to concentrate the surface acoustic wave so as to couple it with the waveguide and to oscillate the surface acoustic wave within a range of an aperture angle of the waveguide.
摘要翻译： 表面声波元件包括：压电基片（10），设置在所述压电基板的波导管（14）引导表面声波那里通过，并设置在所述压电基片，以产生表面声波输入换能器（11）。 输入变换器被布置为集中的表面声波，以便与波导耦合，并振荡的范围内波导的开口角的范围内的表面声波。
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公开(公告)号：EP0602660A3
公开(公告)日：1994-09-07
申请号：EP93120387.1
申请日：1993-12-17
发明人： Hachisu, Takahiro, CANON KABUSHIKI KAISHA , Torisawa, Akria, c/o CANON KABUSHIKI KAISHA , Mochizuki, Norihiro, c/o CANON KABUSHIKI KAISHA , Egara, Koichi, c/o CANON KABUSHIKI KAISHA , Eguchi, Tadashi, c/o CANON KABUSHIKI KAISHA , Koyama, Akihiro, c/o CANON KABUSHIKI KAISHA
CPC分类号： H03H9/02787 , G06G7/195 , H03H9/14547 , H03H9/14561 , H04B1/26
摘要： A surface acoustic wave device (1) includes a piezoelectric substrate, first and second input transducers (2) formed on the substrate and adapted for respectively generating surface acoustic waves corresponding to input signals, the first and second input transducers (2) each having a shape to focus the surface acoustic waves generated thereby, an output transducer (3) formed between the first and second input transducers (2) on the substrate and adapted for obtaining a convolution signal of the surface acoustic waves generated by the first and second input transducers (2), and conductive films (4,14,24), one formed between the first input transducer and the output transducer and another between the second input transducer and the output transducer on the substrate.
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3.发明公开Surface acoustic wave device and communication system using it 失效AkustischeOberflächenwellenanordnungund Kommunikationssystem mit dieser Anordnung。
公开(公告)号：EP0602660A2
公开(公告)日：1994-06-22
申请号：EP93120387.1
申请日：1993-12-17
发明人： Hachisu, Takahiro, CANON KABUSHIKI KAISHA , Torisawa, Akria, c/o CANON KABUSHIKI KAISHA , Mochizuki, Norihiro, c/o CANON KABUSHIKI KAISHA , Egara, Koichi, c/o CANON KABUSHIKI KAISHA , Eguchi, Tadashi, c/o CANON KABUSHIKI KAISHA , Koyama, Akihiro, c/o CANON KABUSHIKI KAISHA
CPC分类号： H03H9/02787 , G06G7/195 , H03H9/14547 , H03H9/14561 , H04B1/26
摘要： A surface acoustic wave device (1) includes a piezoelectric substrate, first and second input transducers (2) formed on the substrate and adapted for respectively generating surface acoustic waves corresponding to input signals, the first and second input transducers (2) each having a shape to focus the surface acoustic waves generated thereby, an output transducer (3) formed between the first and second input transducers (2) on the substrate and adapted for obtaining a convolution signal of the surface acoustic waves generated by the first and second input transducers (2), and conductive films (4,14,24), one formed between the first input transducer and the output transducer and another between the second input transducer and the output transducer on the substrate.
摘要翻译： 表面声波装置包括：压电基板，形成在基板上的第一和第二输入换能器，用于分别产生对应于输入信号的表面声波，第一和第二输入换能器各自具有聚焦由此产生的表面声波的形状 形成在基板上的第一和第二输入换能器之间并且适于获得由第一和第二输入换能器产生的表面声波的卷积信号的输出换能器和形成在第一输入换能器和输出端之间的导电膜 换能器，另一个位于第二输入换能器和基板上的输出换能器之间。 一种通信系统，包括用于发送根据信息调制的信号的发射机，用于接收从发射机发送的调制信号的电路，用于产生参考信号的电路，如上所述的声表面波装置，用于输出卷积信号 的调制信号和参考信号，以及解调电路，用于使用从表面声波装置输出的卷积信号来恢复信息。
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4.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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公开(公告)号：EP0212418A2
公开(公告)日：1987-03-04
申请号：EP86110765.4
申请日：1986-08-04
IPC分类号： G06G7/195
CPC分类号： G06G7/195
摘要： Für einen mit einem Eingangssignal E und mit zwei Referenzsignalen R₁ und R₂ zu betreibenden Convolver (Fig. 1) sind zwei Convolver-Spuren (bzw. vier Spuren bei Kompensation der Selbstfaltung) mit gegenüber dem Eingangswandlern 5 und 6 für die Referenzsignale R₁ und R₂ (bzw. vier) parallelgeschalteten Eingangswandlern 3, 4 (bzw. 3, 1; 3, 2; 4, 1; 4, 2) für das Eingangssignal E erforderlich. Damit bei an allen 3 Eingängen des Convolvers mit derselben Eingangsimpedanz alle Eingangswandler 3, 4, 5, 6 dennoch prizipiell demselben Entwurf entsprechen, sind für die Eingangssignal-Wandler 3, 4 abgewandelte Splitfinger-Wandler (Fig. 3, Fig. 4) mit floatenden Fingern (und die nicht abgewandelten Splitfingerwandler (Fig. 2) für die Referenzsignale) vorgesehen.
摘要翻译： 用于输入信号E，和两个参考信号R1和R2被操作卷积器（图1）二卷积轨道（或在自卷积的补偿四个轨道）相对于所述输入换能器5和6的参考信号R1和R2（ 或四个）并行输入换能器3，4（或3种，1; 3，2，4，1，4，需要2个）的输入信号e。 因此，在对应于与相同的输入阻抗的所有输入换能器3，4，5的卷积器的所有三个输入端，6仍prizipiell相同的设计是用于与浮置所述输入信号转换器3，4改性分裂指换能器（图3，图4） 手指（和用于参考信号的非修饰分裂指换能器（图2））提供。
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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：EP0579871A1
公开(公告)日：1994-01-26
申请号：EP92122035.6
申请日：1992-12-28
CPC分类号： G06G7/195
摘要： A surface acoustic wave convolver includes first (2) and second (3) interdigital electrodes for exciting surface acoustic waves and an output electrode (8) for detecting the surface acoustic waves to extract a convolution output as an electrical signal, the first (2) and second (3) interdigital electrodes and the output electrode (8) being formed on a piezoelectric or electrostrictive substrate. In order to improve convolution efficiency and obtain wide-range characteristics, each of the first (2) and second (3) interdigital electrodes has a predetermined thickness, the first interdigital electrode (2) is arranged such that positive (4) and negative (5) electrodes are alternately arranged so as to have electrode widths and periods which are gradually decreased toward the output electrode, the second interdigital electrode (3) is arranged such that positive (6) and negative (7) electrodes are alternately arranged so as to have electrode widths and periods which are gradually increased toward the output electrode, and the second interdigital electrode has a double electrode structure.
In addition, in order to reduce ripples in frequency characteristics, the output electrode are divided into a plurality of pieces (8a-8d), and two end portions of each of the first (2) and second (3) interdigital electrodes are weighted.摘要翻译： 表面声波卷积器包括用于激发表面声波的第一（2）和第二（3）叉指电极和用于检测表面声波以提取卷积输出作为电信号的输出电极（8），第一（2） 和第二（3）叉指电极，输出电极（8）形成在压电或电致伸缩基板上。 为了提高卷积效率并获得宽范围特性，第一（2）和第二（3）叉指电极中的每一个具有预定的厚度，第一交叉指状电极（2）被布置成使得正（4）和负（ 5）电极交替排列成具有朝向输出电极逐渐减小的电极宽度和周期，第二叉指电极（3）布置成使得正极（6）和负极（7）交替布置，以便 具有朝向输出电极逐渐增加的电极宽度和周期，并且第二叉指电极具有双电极结构。 此外，为了减少频率特性的波动，输出电极被分成多个片（8a-8d），并且对第一（2）和第二（3）叉指电极中的每一个的两个端部进行加权。
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8.发明公开Surface acoustic wave device with reflected wave at side edges on waveguide suppressed and communication system using the same 失效一种声表面波装置与波导和传输系统与这样的布置的边缘反射波的抑制。
公开(公告)号：EP0484689A1
公开(公告)日：1992-05-13
申请号：EP91117289.8
申请日：1991-10-10
发明人： Egara, Koichi, c/o Canon Kabushiki Kaisha , Nakamura, Kenji, c/o Canon Kabushiki Kaisha , Mochizuki, Norihiro, c/o Canon Kabushiki Kaisha
CPC分类号： H03H9/02787 , G06G7/195 , H03H9/02842 , H03H9/6486
摘要： A surface acoustic wave device comprises a substrate (21), a plurality of input transducers (22,23) formed on said substrate for generating first and second surface acoustic waves propagating in opposite directions to each other, a plurality of waveguides (24) arranged in a direction orthogonal to the propagating direction of said first and second surface acoustic waves on a region where said first and second surface acoustic waves overlap, each waveguide producing a third surface acoustic wave propagating in a direction (-y) where the waveguides are arranged, with the interaction between the first and second surface acoustic waves, and on at least two of said waveguides, third surface acoustic waves reflected at respective side edges canceling each other, and an output transducer (25) for converting said third surface acoustic waves propagating from the waveguides into an electric signal.
摘要翻译： 一种表面声波装置包括用于产生第一和第二表面声波在相反的方向上彼此传播的形成在所述基板一基板（21），输入换能器的多个（22,23），波导的多个（24），其布置 在正交于所述第一传播方向与第二表面声波上，其中所述第一和第二表面声波重叠的区域，一个方向上的每个波导在所述波导被布置的方向（-y）产生第三表面声波传播 ，与第一和第二表面声波之间的相互作用，并且在至少两个所述波导，第三表面声波反射respectivement侧边缘的取消海誓山盟，并输出换能器（25），用于将所述第三表面声波传播 从波导成电信号。
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9.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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公开(公告)号：EP0135769A2
公开(公告)日：1985-04-03
申请号：EP84109637.3
申请日：1984-08-13
发明人： Engan, Helge
IPC分类号： G06G7/195
CPC分类号： G06G7/195
摘要： Convolveranordnung (Fig. 1) mit Wandlern (3, 4), deren Finger (11) so gekrümmt sind, daß sie der jeweiligen Wellenfront einer von der Integrations-Elektrode (2) ausgehenden Welle entsprechen.
摘要翻译： Convolveranordnung（图1）带有换能器（3,4），换能器的指状物（11）是弯曲的，以便它们对应于集成电极（2）输出轴之一的相应波阵面。
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