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11 条记录 (耗时 0.021 秒)

    Surface acoustic wave device capable of suppressing spurious response due to non-harmonic higher-order modes
    1.
    发明授权
    Surface acoustic wave device capable of suppressing spurious response due to non-harmonic higher-order modes 失效
    能够抑制由非谐波高阶模式引起的寄生响应的声表面波器件

    公开(公告)号：US06346761B1

    公开(公告)日：2002-02-12

    申请号：US09492078

    申请日：2000-01-27

    申请人： Atsushi Isobe ,  Mitsutaka Hikita ,  Kengo Asai ,  Atsushi Sumioka

    发明人： Atsushi Isobe ,  Mitsutaka Hikita ,  Kengo Asai ,  Atsushi Sumioka

    IPC分类号： H01L4104

    CPC分类号： H03H9/1452 ,  H03H9/02818

    摘要： A surface acoustic wave device which includes a piezoelectric substrate, and an interdigital transducer formed on a planar surface of the piezoelectric substrate, and having first and second bus bars, a first plurality of electrode fingers connected to the first bus bar, and a second plurality of electrode fingers connected to the second bus bar. The first and second plurality of electrode fingers of the interdigital transducer have an electrode cross region in which the first and second plurality of electrode fingers are arranged alternatively. Each boundary between the first and second bus bars and a grating region of the first and second plurality of electrode fingers is arranged such that the boundary is not substantially parallel, with a transmission direction of surface acoustic waves excited by the interdigital transducer.

    摘要翻译： 一种表面声波装置，包括压电基片和形成在压电基片的平面上的叉指换能器，并具有第一和第二汇流条，连接到第一汇流条的第一多个电极指，以及第二多个 的电极指连接到第二汇流条。 叉指式换能器的第一和第二多个电极指具有交替布置第一和第二多个电极指的电极交叉区域。 第一和第二母线之间的每个边界以及第一和第二多个电极指的光栅区域被布置成使得边界基本上不平行，并且由叉指换能器激发的表面声波的透射方向。

    SAW resonator having a broad bandwidth
    2.
    发明授权
    SAW resonator having a broad bandwidth 失效
    具有宽带宽的SAW谐振器

    公开(公告)号：US5010269A

    公开(公告)日：1991-04-23

    申请号：US282177

    申请日：1988-12-09

    申请人： Mitsutaka Hikita ,  Atsushi Sumioka ,  Toyoji Tabuchi ,  Kazuhito Kurosawa ,  Tuneo Kinoshita

    发明人： Mitsutaka Hikita ,  Atsushi Sumioka ,  Toyoji Tabuchi ,  Kazuhito Kurosawa ,  Tuneo Kinoshita

    IPC分类号： H03H3/08 ,  H03H9/145 ,  H03H9/25

    CPC分类号： H03H9/14505 ,  H03H9/25

    摘要： A SAW resonator includes resonating SAW transducer units formed on a piezoelectric substrate and juxtaposed in a direction of propagation of acoustic waves, and a unidirectionally reflecting SAW transducer unit provided in each end of the juxtaposed resonating SAW transducer units on the substrate. Each resonating SAW transducer unit includes first and second SAW transducers connected in series and/or in parallel with each other. Each unidirectionally reflecting SAW transducer unit includes first and second comb-like electrodes having a plurality of first second fingers, respectively, formed on the substrate, in which: two second fingers are interposed between each pair of adjacent two first fingers; at least one reflective stripe is provided between the two second fingers interposed between at least one pair of adjacent two first fingers; and the distances between the reflective stripe and the two second fingers and the widths of the two second fingers are determined such that acoustic waves produced by the fingers of the reflecting SAW transducer units and propagating in a first direction perpendicular to the direction of the length of the fingers and reflected by the reflective stripe in a second direction perpendicular to the first direction are in phase with acoustic waves propagating in the second direction and acoustic waves produced by the fingers of the reflecting SAW transducer units and propagating in the second direction and reflected by the reflective stripe in the first direction are out of phase with acoustic waves propagating in the first direction.

    摘要翻译： SAW谐振器包括形成在压电基板上并且在声波传播方向上并置的谐振SAW传感器单元，以及设置在基片上并置的谐振SAW换能器单元的每一端的单向反射SAW换能器单元。 每个谐振SAW换能器单元包括彼此串联和/或并联连接的第一和第二SAW换能器。 每个单向反射SAW换能器单元包括分别形成在基板上的多个第一第二指状物的第一和第二梳状电极，其中：两个第二指状物插入在每对相邻的两个第一指状物之间; 在插入在至少一对相邻的两个第一指状物之间的两个第二指状物之间提供至少一个反射条纹; 并且确定反射条和两个第二指状物之间的距离和两个第二指状物的宽度，使得由反射SAW换能器单元的指状物产生的声波在垂直于第二指状物的长度方向的第一方向上传播 手指并且在与第一方向垂直的第二方向上由反射条纹反射，与在第二方向上传播的声波和由反射SAW换能器单元的指状产生的声波相同，并且在第二方向上传播并由第 在第一方向上的反射条纹与在第一方向上传播的声波不同相。

    Duplex radio communication transceiver
    3.
    发明授权
    Duplex radio communication transceiver 失效
    双工无线电通信收发器

    公开(公告)号：US4792939A

    公开(公告)日：1988-12-20

    申请号：US6171

    申请日：1987-01-23

    申请人： Mitsutaka Hikita ,  Atsushi Sumioka ,  Yoshikatu Ishida ,  Kunihiro Hamada ,  Yutaka Chiba ,  Yoshio Abe

    发明人： Mitsutaka Hikita ,  Atsushi Sumioka ,  Yoshikatu Ishida ,  Kunihiro Hamada ,  Yutaka Chiba ,  Yoshio Abe

    IPC分类号： H01Q21/30 ,  H04B1/50 ,  H04B1/56

    CPC分类号： H04B1/50 ,  H01Q21/30

    摘要： In order to reduce the size of a duplex radio communication transceiver such as a mobile telephone, this transceiver is constructed of a transmitting and receiving duplexer, a filter to be coupled to the duplexer, an amplifier for amplifying a signal received, and a filter to be connected with the output of the amplifier. All the filters are made of acoustic surface wave filters, and all the circuits are mounted on a single metallic substrate and sealed by means of a metallic casing into a module. The transceiver thus constructed has a volume which is one tenth as small as that of the device of the same kind according to the prior art.

    摘要翻译： 为了减小诸如移动电话的双工无线电通信收发机的大小，该收发器由发送和接收双工器，要耦合到双工器的滤波器，用于放大接收的信号的放大器和滤波器构成 与放大器的输出连接。 所有滤波器由声表面波滤波器制成，所有电路都安装在单个金属基板上，并通过金属外壳密封成模块。 如此构造的收发器具有根据现有技术的相同类型装置的体积的十分之一的体积。

    Surface acoustic wave resonator
    4.
    发明授权
    Surface acoustic wave resonator 失效
    表面声波谐振器

    公开(公告)号：US4734664A

    公开(公告)日：1988-03-29

    申请号：US844104

    申请日：1986-03-26

    申请人： Mitsutaka Hikita ,  Atsushi Sumioka ,  Yoshikatu Ishida

    发明人： Mitsutaka Hikita ,  Atsushi Sumioka ,  Yoshikatu Ishida

    IPC分类号： H03H3/08 ,  H03H9/145 ,  H03H9/25 ,  H03H9/64

    CPC分类号： H03H9/6479 ,  H03H9/1455 ,  H03H9/25 ,  H03H9/6463

    摘要： In order to realize an SAW filter withstanding high power, a plurality of single open-ended surface acoustic wave resonators are connected in series, and an earth conductor is disposed at least on a part of rear face of a piezoelectric substrate constituting the surface acoustic wave resonators. And static capacities formed between said earth conductor and electrode conductors on the piezoelectric substrate constituting the surface acoustic wave resonators are utilized as constituents of the filter circuit. In the above described structure, a part of input power is not converted into acoustic energy, but directly transmitted to the output side. Since the mechanical stress imposed upon the electrode material and the piezoelectric substrate is thus lightened, the SAW filter can withstand a large power signal.

    摘要翻译： 为了实现具有高功率的SAW滤波器，多个单开口声表面波谐振器串联连接，接地导体至少设置在构成声表面波的压电基片的背面的至少一部分上 谐振器。 在构成表面声波谐振器的压电基板上的所述接地导体和电极导体之间​​形成的静电容量被用作滤波器电路的组成部分。 在上述结构中，输入功率的一部分不被转换为声能，而是直接传输到输出侧。 由于施加在电极材料和压电基板上的机械应力因此减轻，所以SAW滤波器可以承受大的功率信号。

    Surface acoustic wave device
    7.
    发明授权
    Surface acoustic wave device 失效
    表面声波装置

    公开(公告)号：US06774536B2

    公开(公告)日：2004-08-10

    申请号：US09907614

    申请日：2001-07-19

    申请人： Tsuyoshi Kachi ,  Atsushi Isobe ,  Atsushi Sumioka

    发明人： Tsuyoshi Kachi ,  Atsushi Isobe ,  Atsushi Sumioka

    IPC分类号： H01L4108

    CPC分类号： H03H9/14547 ,  H03H9/02748 ,  H03H9/02992 ,  H03H9/1452 ,  H03H9/14564 ,  H03H9/14573

    摘要： In a surface acoustic wave resonator in which an interdigital transducer is formed on a piezoelectric substrate with apodization based on cross lengths of electrode fingers and the inside face of each bus bar is not parallel to a group velocity direction of a surface acoustic wave excited on the interdigital transducer, reflector electrode fingers and excitation-area electrode fingers are disposed to provide relatively shifted positioning therebetween in the group velocity direction of the surface acoustic wave or a distance between the periphery of an excitation area and the inside face of each bus bar is limited within a predetermined range.

    摘要翻译： 在其中在压电基片上形成叉指式换能器的表面声波谐振器中，基于电极指的交叉长度和每个汇流条的内表面的变迹，并不平行于激发在表面声波的组速度方向 叉指换能器，反射器电极指和激励区电极指被设置成在声表面波的组速度方向上提供相对偏移的定位，或者激励区域的周边与每个母线的内表面之间的距离受到限制 在预定范围内。

    Method for forming flat display panel phosphor dots
    8.
    发明授权
    Method for forming flat display panel phosphor dots 失效
    用于形成平面显示面板荧光点的方法

    公开(公告)号：US4020191A

    公开(公告)日：1977-04-26

    申请号：US611985

    申请日：1975-09-10

    申请人： Waichi Nagashiro ,  Tadao Okabe ,  Atsushi Sumioka ,  Mitsuru Oikawa

    发明人： Waichi Nagashiro ,  Tadao Okabe ,  Atsushi Sumioka ,  Mitsuru Oikawa

    IPC分类号： H01J9/22 ,  H01J9/227 ,  H01J17/49 ,  H01J63/00 ,  B05D3/06

    CPC分类号： H01J9/2271 ,  H01J63/00 ,  H01J9/22 ,  H01J2893/0031

    摘要： A method for forming flat display panel phosphor dots is disclosed wherein a conventional printing method or procedure is used in combination with an optical method.The paste film containing the phosphor, photoresist and powdered glass is coated on the surface of the dielectric layer, e.g. lead glass layer by means of the printing method. The paste layer is irradiated by a ultraviolet light through a mask, and after the development of the paste layer has been completed, the remaining hardened portions of the paste layer are subjected to a heat treatment. In this way, phosphor dots having a desired shape can be formed very firmly and very exactly at certain predetermined portions on said dielectric layer.

    摘要翻译： 公开了一种用于形成平板显示面板荧光点的方法，其中常规打印方法或程序与光学方法结合使用。

    Driving method of gas-discharge display panel
    9.
    发明授权
    Driving method of gas-discharge display panel 失效
    气体放电显示面板的驱动方法

    公开(公告)号：US4476466A

    公开(公告)日：1984-10-09

    申请号：US259472

    申请日：1981-05-01

    申请人： Eisuke Mitani ,  Yukio Okamoto ,  Atsushi Sumioka

    发明人： Eisuke Mitani ,  Yukio Okamoto ,  Atsushi Sumioka

    IPC分类号： G09G3/10 ,  G09G3/29

    CPC分类号： G09G3/29 ,  G09G3/285

    摘要： A method of driving a gas-discharge panel having at least one reset electrode and cathode and anode groups for forming N electrode pairs. The cathodes are p-phase connected (p.gtoreq.3) while the anodes are m-phase connected (m.ltoreq.p). The reset electrode is applied with a reset pulse voltage having a period of T of one frame. Cathode pulse voltages having their pulse widths of (p-1)T/N are successively applied to the cathodes for respective p phases with a phase shift of T/N to each other while anode pulse voltages having their pulse widths of at maximum (m-1)T/N are successively applied to the anodes for respective m phases with a phase shift of T/N to each other. A reset discharge which is generated by the reset pulse voltage and the first one of the cathode pulse voltages and anode pulse voltages applied for each frame and having a value cooperating with the reset pulse voltage value is successively transferred by means of the cathode and anode voltages to display desired information. As a result, the display luminance can be improved (p-1) times without impairing the self-scanning function.

    摘要翻译： 驱动具有至少一个复位电极和用于形成N个电极对的阴极和阳极组的气体放电板的方法。 阴极是p相连接的（p> / = 3），而阳极是m相连接的（m = p）。 复位电极施加具有一帧T周期的复位脉冲电压。 具有（p-1）T / N的脉冲宽度的阴极脉冲电压被连续地施加到具有T / N相移的各个p相的阴极彼此，而其脉冲宽度最大的阳极脉冲电压（m -1）T / N连续地施加到具有T / N的相移的各个m相的阳极。 通过复位脉冲电压产生的复位放电和施加于每个帧的具有与复位脉冲电压值协调的值的阴极脉冲电压和阳极脉冲电压中的第一个的复位放电通过阴极和阳极电压连续传输 以显示所需信息。 结果，可以在不损害自扫描功能的情况下改善（p-1）次的显示亮度。