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1.发明授权
公开(公告)号：US4841470A
公开(公告)日：1989-06-20
申请号：US875855
申请日：1986-06-18
IPC分类号： G06G7/195 , H03H9/02 , H04L27/18 , H04L27/227 , H04L27/233
CPC分类号： H03H9/02771 , G06G7/195 , H03H9/14564 , H04L27/2278 , H04L27/2331 , H03H9/02913 , H03H9/14547
摘要： A differential phase shift keying convolver having a plurality of tracks includes at least one track where an opposite phase convolution output is produced. Each track includes two output gates spaced at the center for differential phase shift keying demodulation. Among these output gates, some gates selected in accordance with the phase relationship between convolution outputs are connected to provide sum and/or difference outputs of the convolution signals. The opposite phase convolution outputs can be produced by arranging at least one of the input transducers in a step-like configuration, by using multistrip couplers, or by providing a metal film in a selected position of the traveling path of surface acoustic waves for application of a control voltage.
摘要翻译： 具有多个轨道的差分相移键控卷积器包括产生相反相位卷积输出的至少一个轨道。 每个轨道包括在中心间隔开的差分相移键控解调的两个输出门。 在这些输出门之中，根据卷积输出之间的相位关系选择的一些门被连接以提供卷积信号的和和/或差分输出。 相反的卷积输出可以通过使用多段耦合器布置至少一个输入换能器，通过使用多段耦合器，或者通过在表面声波的行进路径的选定位置提供金属膜来产生，以应用 一个控制电压。
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公开(公告)号：US4745378A
公开(公告)日：1988-05-17
申请号：US99688
申请日：1987-09-18
CPC分类号： H03H9/6403 , H03H9/02566
摘要： The surface acoustic wave device includes a plurality of output gate electrodes provided between two signal input transducers on a piezoelectric layer on a semiconductor substrate, so that each output gate electrode receives a bias voltage unique to it and supplies an output signal based on the unique bias voltage.
摘要翻译： 表面声波装置包括设置在半导体衬底上的压电层上的两个信号输入传感器之间的多个输出栅电极，使得每个输出栅电极接收到其独有的偏置电压，并且基于唯一的偏置提供输出信号 电压。
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3.发明授权
公开(公告)号：US4625184A
公开(公告)日：1986-11-25
申请号：US508397
申请日：1983-06-27
CPC分类号： H03H7/38 , H03H9/02574 , H03H9/0542 , H03H9/14597 , H01F17/0006 , H01F17/0033
摘要： The surface acoustic wave device comprises an elastic substrate, a piezoelectric film deposited on the elastic substrate, and transducers and matching circuits both provided on the piezoelectric film or along the interface between the piezoelectric film and the elastic substrate.
摘要翻译： 表面声波装置包括弹性基板，沉积在弹性基板上的压电薄膜，以及均匀地设置在压电薄膜上或沿着压电薄膜和弹性基板之间的界面的换能器和匹配电路。
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公开(公告)号：US4531107A
公开(公告)日：1985-07-23
申请号：US511500
申请日：1983-07-06
CPC分类号： H03H9/14505 , H03H9/02574
摘要： Acoustic surface wave device comprising a lower electrode disposed on an elastic substrate and an upper electrode consisting of two comb-shaped electrodes disposed apart from each other, opposite to said lower electrode through a piezoelectric film covering said lower electrode, at least one of said lower and upper electrodes being constructed as an apodized electrode.
摘要翻译： 声表面波装置，其包括设置在弹性基板上的下电极和由两个梳状电极构成的上电极，所述上电极通过覆盖所述下电极的压电膜相对于所述下电极相对设置，所述下电极中的至少一个 并且上电极被构造为变迹电极。
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公开(公告)号：US4602183A
公开(公告)日：1986-07-22
申请号：US509755
申请日：1983-06-30
CPC分类号： H03H9/14505 , H03H9/02574 , H03H9/14508
摘要： A surface acoustic wave device comprises an elastic substrate; a lower electrode provided on the elastic substrate; a piezo-electric film covering the lower electrode; and plural upper electrodes which each include plural electrode fingers and are aligned with and spaced from each other on the piezoelectric film in confrontation with the lower electrode.
摘要翻译： 表面声波装置包括弹性基板; 设置在弹性基板上的下电极; 覆盖下电极的压电膜; 以及多个上电极，每个上电极包括多个电极指，并且在与下电极对置的压电膜上彼此对齐并彼此间隔开。
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公开(公告)号：US4491811A
公开(公告)日：1985-01-01
申请号：US506569
申请日：1983-06-22
CPC分类号： H03H9/14508 , H03H9/02228
摘要： A surface acoustic wave device in which first electrodes are provided on a piezoelectric film deposited on an elastic substrate, second electrodes between the piezoelectric film and the elastic substrate, and third electrode within the piezoelectric film, respectively, so that an electric signal is applied to the first and second electrodes.
摘要翻译： 一种声表面波装置，其中第一电极设置在沉积在弹性基板上的压电膜上，压电膜和弹性基板之间的第二电极以及压电膜内的第三电极，使得电信号被施加到 第一和第二电极。
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公开(公告)号：US4456847A
公开(公告)日：1984-06-26
申请号：US499930
申请日：1983-06-01
CPC分类号： H03H9/0222 , H03H9/14508 , H03H9/64
摘要： A surface acoustic wave device comprises a lower electrode provided on an elastic substrate, a piezoelectric film covering the lower electrode and an upper electrode provided on the piezoelectric film. The device is characterized in that the upper electrode comprises first and second double electrodes both opposed to the lower electrode.
摘要翻译： 表面声波装置包括设置在弹性基板上的下电极，覆盖下电极的压电膜和设置在压电膜上的上电极。 该装置的特征在于，上电极包括与下电极相对的第一和第二双电极。
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公开(公告)号：US5220230A
公开(公告)日：1993-06-15
申请号：US780893
申请日：1991-10-23
申请人： Teruo Niitsuma
发明人： Teruo Niitsuma
CPC分类号： G06G7/195
摘要： An SAW (surface acoustic wave) device is disclosed, in which a plurality of SAW delay lines and a plurality of SAW convolver elements are combined; signals delayed by predetermined amounts by the combined SAW delay lines are used as input signals to the SAW convolver elements; and output signals thus obtained from the plurality of SAW convolver elements are added together to be taken out so that apparently a processing time, which is equal to a signal processing time of a single SAW convolver element multiplied by an integer, can be obtained.
摘要翻译： 公开了一种SAW（表面声波）器件，其中组合了多个SAW延迟线和多个SAW卷积器元件; 通过组合的SAW延迟线延迟预定量的信号被用作到SAW卷积器元件的输入信号; 并且将从多个SAW卷积单元得到的输出信号相加在一起，以便可以获得等于单个SAW卷积单元乘以整数的信号处理时间的处理时间。
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公开(公告)号：US5189330A
公开(公告)日：1993-02-23
申请号：US764053
申请日：1991-09-23
申请人： Teruo Niitsuma
发明人： Teruo Niitsuma
CPC分类号： H03H9/1455 , G06G7/195 , H03H9/42
摘要： An SAW convolver is disclosed, in which a pair of input transducer means disposed at the left and right end portions on a piezoelectric substrate having a velocity dispersion consists of a plurality of pairs of input transducers and the distance between different pairs of input transducers differs from each other so as to compensate the velocity dispersion.
摘要翻译： 公开了一种SAW卷积器，其中设置在具有速度色散的压电基板上的左端部和右端部分的一对输入传感器装置由多对输入传感器组成，并且不同输入传感器对之间的距离不同于 彼此以补偿速度分散。
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公开(公告)号：US4993000A
公开(公告)日：1991-02-12
申请号：US455163
申请日：1989-12-22
申请人： Teruo Niitsuma , Syuichi Mitsutsuka
发明人： Teruo Niitsuma , Syuichi Mitsutsuka
CPC分类号： H03H9/1085 , H03H9/1092
摘要： A surface acoustic wave device according to the present invention can be molded surely with resin, leaving a free space over exciting portions and a propagating portion by disposing a recess portion formed over the exciting portions and the propagating portion on a piezoelectric substrate without using any metallic package.
摘要翻译： 根据本发明的表面声波装置可以用树脂可靠地模制，通过将形成在激发部分和传播部分上的凹部设置在压电基板上而不使用任何金属的凹凸部分，在激励部分和传播部分上留下自由空间 包。
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