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    Compact surface acoustic wave apparatus, spread spectrum signal receiver using the same apparatus for reception of spread spectrum signal, and spread spectrum signal communication system using the same spread spectrum signal receiver
    1.
    发明授权
    Compact surface acoustic wave apparatus, spread spectrum signal receiver using the same apparatus for reception of spread spectrum signal, and spread spectrum signal communication system using the same spread spectrum signal receiver 失效
    紧凑声表面波装置，使用与扩频信号接收相同的装置的扩频信号接收机以及使用同一扩频信号接收机的扩频信号通信系统

    公开(公告)号：US5962950A

    公开(公告)日：1999-10-05

    申请号：US630779

    申请日：1996-04-10

    申请人： Koichi Egara ,  Akira Torisawa ,  Tadashi Eguchi ,  Akihiro Koyama ,  Takahiro Hachisu ,  Akane Yokota

    发明人： Koichi Egara ,  Akira Torisawa ,  Tadashi Eguchi ,  Akihiro Koyama ,  Takahiro Hachisu ,  Akane Yokota

    IPC分类号： H03H9/145 ,  G06G7/195 ,  H03H9/25 ,  H03H9/72 ,  H04B1/709 ,  H04J13/00 ,  H01L41/08

    CPC分类号： H04B1/70712 ,  G06G7/195

    摘要： In a surface acoustic wave apparatus, a surface acoustic wave element for obtaining a convolution signal is housed in a recess of a substrate. Since the surface acoustic wave element is housed in the recess of the substrate in this surface acoustic wave apparatus, the apparatus can be compactified. This effect of compactification is remarkable, because the surface acoustic wave element has an output electrode for obtaining the convolution signal and thus originally has a big element size. When a laminate substrate is used as the substrate, a configuration for effectively using surfaces of respective layers may be arranged in such a manner that output wiring of the convolution signal is separately formed in the layers. This further enhances the effect of compactification. There are further disclosed a spread spectrum signal receiver using the above surface acoustic wave apparatus for receiving a spread spectrum signal, and a spread spectrum communication system using the spread spectrum signal receiver.

    摘要翻译： 在表面声波装置中，用于获得卷积信号的表面声波元件容纳在基板的凹部中。 由于表面声波元件容纳在该声表面波装置中的基板的凹部中，所以能够使装置紧凑化。 由于表面声波元件具有用于获得卷积信号的输出电极，因此原本具有大的元件尺寸，因此这种紧凑化的效果是显着的。 当层叠基板用作基板时，可以以这样的方式布置用于有效地使用各层的表面的构造，即在层中分别形成卷积信号的输出布线。 这进一步增强了压实效果。 还公开了使用上述用于接收扩展频谱信号的声表面波装置的扩频信号接收机和使用该扩频信号接收机的扩频通信系统。

    Matched filter with improved synchronous characteristics, and reception device and communication system using the same
    2.
    发明授权
    Matched filter with improved synchronous characteristics, and reception device and communication system using the same 失效
    具有改善的同步特性的匹配滤波器，以及使用其的接收装置和通信系统

    公开(公告)号：US5815055A

    公开(公告)日：1998-09-29

    申请号：US681331

    申请日：1996-07-23

    申请人： Tadashi Eguchi ,  Akira Torisawa ,  Koichi Egara ,  Akihiro Koyama ,  Takahiro Hachisu ,  Akane Yokota

    发明人： Tadashi Eguchi ,  Akira Torisawa ,  Koichi Egara ,  Akihiro Koyama ,  Takahiro Hachisu ,  Akane Yokota

    IPC分类号： H03H9/145 ,  H03H9/25 ,  H03H9/42 ,  H03H9/64 ,  H04B1/707 ,  H04B1/7093 ,  H04B1/69

    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着输出IDT侧的电极指的非交叉部分传播。 通过这种布置，可以放宽输入到距输入IDT更远的电极指的交叉部分的声表面波的电极指的交叉部分更靠近输入IDT的影响。

    Surface acoustic wave converter with improved frequency characteristics, surface acoustic wave device using such converter, and communication system using such device
    3.
    发明授权
    Surface acoustic wave converter with improved frequency characteristics, surface acoustic wave device using such converter, and communication system using such device 失效
    具有改善频率特性的表面声波转换器，使用这种转换器的表面声波装置，以及使用这种装置的通信系统

    公开(公告)号：US6020672A

    公开(公告)日：2000-02-01

    申请号：US711000

    申请日：1996-09-26

    申请人： Akane Yokota ,  Akira Torisawa ,  Koichi Egara ,  Tadashi Eguchi ,  Akihiro Koyama ,  Takahiro Hachisu

    发明人： Akane Yokota ,  Akira Torisawa ,  Koichi Egara ,  Tadashi Eguchi ,  Akihiro Koyama ,  Takahiro Hachisu

    IPC分类号： H03H9/145 ,  H03H9/25 ,  H03H9/72 ,  H04B1/709 ,  H04J13/00 ,  H03B19/00

    CPC分类号： H03H9/14502 ,  H04B1/70712

    摘要： A surface acoustic wave converter for converting an electric signal into a surface acoustic wave includes an interdigital transducer provided on a piezoelectric substrate. The interdigital transducer has first and second electrode groups each having one or more electrode fingers to which a first signal is almost simultaneously inputted. The surface acoustic wave converters includes first input unit for inputting the first signal to the one or more electrode fingers of the first electrode group, and second input unit for inputting the first signal to the one or more electrode fingers of the second electrode group when at least one of surface acoustic waves excited by the first signal in the one or more electrode fingers of the first electrode group reaches one of the one or more electrode fingers of the second electrode group.

    摘要翻译： 用于将电信号转换为声表面波的表面声波转换器包括设置在压电基板上的叉指式换能器。 叉指换能器具有第一和第二电极组，每个电极组具有一个或多个电极指，几乎同时输入第一信号。 表面声波转换器包括用于将第一信号输入到第一电极组的一个或多个电极指的第一输入单元和用于在第二电极组中的第一电极组的一个或多个电极指的第一信号输入的第二输入单元 由第一电极组的一个或多个电极指中的第一信号激发的表面声波中的至少一个到达第二电极组的一个或多个电极指中的一个。

    Surface acoustic wave device and communication system using it
    7.
    发明授权
    Surface acoustic wave device and communication system using it 失效
    声表面波装置及其使用的通信系统

    公开(公告)号：US5760525A

    公开(公告)日：1998-06-02

    申请号：US681493

    申请日：1996-07-23

    申请人： Takahiro Hachisu ,  Akira Torisawa ,  Norihiro Mochizuki ,  Koichi Egara ,  Tadashi Eguchi ,  Akihiro Koyama

    发明人： Takahiro Hachisu ,  Akira Torisawa ,  Norihiro Mochizuki ,  Koichi Egara ,  Tadashi Eguchi ,  Akihiro Koyama

    IPC分类号： H03H9/72 ,  G06G7/195 ,  H03H9/145 ,  H04B1/26 ,  H01L41/08

    CPC分类号： H03H9/02787 ,  G06G7/195 ,  H03H9/14547 ,  H03H9/14561 ,  H04B1/26

    摘要： A surface acoustic wave device includes a piezoelectric substrate, first and second input transducers formed on the substrate and adapted for respectively generating surface acoustic waves corresponding to input signals, the first and second input transducers each having a shape to focus the surface acoustic waves generated thereby, an output transducer formed between the first and second input transducers on the substrate and adapted for obtaining a convolution -signal of the surface acoustic waves generated by the first and second input transducers, and conductive films, 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. A communication system includes a transmitter for transmitting a signal modulated according to information, a circuit for receiving the modulated signal transmitted from the transmitter, a circuit for generating a reference signal, a surface acoustic wave device, as described above, for outputting a convolution signal of the modulated signal and the reference signal, and a demodulating circuit for restoring the information, using the convolution signal output from the surface acoustic wave device.

    摘要翻译： 表面声波装置包括压电基片，形成在基片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的输出换能器，并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，以及形成在第一输入换能器和 输出换能器和另一个在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射的调制信号的电路，用于产生参考信号的电路，如上所述的表面声波装置，用于输出卷积信号 的调制信号和参考信号，以及解调电路，用于使用从声表面波装置输出的卷积信号来恢复信息。

    Optical modulation device with pixels each having series connected electrode structure
    8.
    发明授权
    Optical modulation device with pixels each having series connected electrode structure 失效
    具有各个具有串联连接的电极结构的光学调制装置

    公开(公告)号：US06177968B1

    公开(公告)日：2001-01-23

    申请号：US09143393

    申请日：1998-08-28

    申请人： Shinjiro Okada ,  Hirohide Munakata ,  Takashi Enomoto ,  Yutaka Inaba ,  Takahiro Hachisu

    发明人： Shinjiro Okada ,  Hirohide Munakata ,  Takashi Enomoto ,  Yutaka Inaba ,  Takahiro Hachisu

    IPC分类号： G02F11343

    CPC分类号： G02F1/134336 ,  G02F1/1393 ,  G02F1/141 ,  G02F2001/133757 ,  G02F2001/1412 ,  G02F2201/121 ,  G09G3/3629 ,  G09G3/3651

    摘要： An optical modulation device is constituted by a first substrate provided with a plurality of first electrodes each comprising a plurality of portions electrically independent of each other, a second substrate disposed opposite to the first substrate and provided with a plurality of second electrodes each confronting a corresponding first electrode, and an optical modulation substance disposed between the first and second substrates so as to form a plurality of pixels each having a particular electrode structure. In the electrode structure, the optical modulation substance is sandwiched between each second electrode and said portions of said corresponding first electrode so as to form a series circuit providing a plurality of capacitance, thus reducing the capacitance for each pixel to improve a switching characteristic while minimizing a defective portion due to a short-circuit between the confronting electrodes.

    摘要翻译： 光调制装置由设置有多个第一电极的第一基板构成，第一电极各自包括彼此电独立的多个部分，与第一基板相对设置的第二基板，并且设置有多个第二电极，每个第二电极面对相应的 第一电极和设置在第一和第二基板之间的光调制物质，以形成各具有特定电极结构的多个像素。 在电极结构中，光调制物质被夹在每个第二电极和所述对应的第一电极的所述部分之间，以形成提供多个电容的串联电路，从而降低每个像素的电容，从而提高开关特性，同时最小化 由于相对电极之间的短路而导致的缺陷部分。

    Electron source substrate, production method thereof, and image forming apparatus using electron source substrate
    10.
    再颁专利
    Electron source substrate, production method thereof, and image forming apparatus using electron source substrate 失效
    电子源基板及其制造方法以及使用电子源基板的成像装置

    公开(公告)号：USRE41086E1

    公开(公告)日：2010-01-26

    申请号：US11704906

    申请日：2007-02-08

    申请人： Takahiro Hachisu

    发明人： Takahiro Hachisu

    IPC分类号： H01J1/62

    CPC分类号： H01J29/92 ,  H01J1/316

    摘要： An electron source substrate has an electron-emitting device consisting of a pair of device electrodes and an electroconductive thin film having an electron-emitting region; and metal wiring coupled to the device electrodes and made in a composition different from that of the device electrodes, on a substrate. A shortest distance between the conductive thin film and the metal wiring along an interface between the device electrodes and the substrate is not less than 50 μm. This configuration is able to effectively prevent diffusion of the wiring metal to the conductive thin film and to the electron-emitting region which can cause degradation of electron emission characteristics.

    摘要翻译： 电子源衬底具有由一对器件电极和具有电子发射区的导电薄膜组成的电子发射器件; 以及在基板上耦合到器件电极并且被制成不同于器件电极的组成的金属布线。 沿着器件电极和衬底之间的界面，导电薄膜和金属布线之间的最短距离不小于50μm。 该配置能够有效地防止布线金属向导电薄膜和能够引起电子发射特性劣化的电子发射区的扩散。