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    Filter using piezoelectric resonator
    2.
    发明公开
    Filter using piezoelectric resonator 审中-公开
    过滤器mit piezoelektrischem谐振器

    公开(公告)号：EP1533897A2

    公开(公告)日：2005-05-25

    申请号：EP04026155.4

    申请日：2004-11-04

    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    Inventor： Yamakawa, Takehiko ,  Yamaguchi, Hiroshi ,  Nakatsuka, Hiroshi ,  Nakamura, Hiroyuki ,  Onishi, Keiji ,  Ishizaki, Toshio

    IPC: H03H9/64 ,  H03H9/58

    CPC classification number: H03H9/605 ,  H03H9/6433

    Abstract: A series piezoelectric resonator (11) is connected in series between an input terminal (15a) and an output terminal (15b). A first electrode of a first parallel piezoelectric resonator (12a) is connected to a connection point between the input terminal (15a) and the series piezoelectric resonator (11), and a second electrode of the first parallel piezoelectric resonator (12a) is connected to a first terminal of a first inductor (13a). A first electrode of a a second parallel piezoelectric resonator (12b) is connected to a connection point between the series piezoelectric resonator (11) and the output terminal (15b), and a second electrode of the second parallel piezoelectric resonator (12b) is connected to a first terminal of a second inductor (13b). Second terminals of the inductors (13a,13b) are grounded. An additional piezoelectric resonator (14) is connected between the second electrode of the first parallel piezoelectric resonator (12a) and the second electrode of the second parallel piezoelectric resonator (12b).

    Abstract translation: 串联压电谐振器（11）串联连接在输入端子（15a）和输出端子（15b）之间。 第一并联压电谐振器（12a）的第一电极连接到输入端子（15a）和串联压电谐振器（11）之间的连接点，第一并联压电谐振器（12a）的第二电极连接到 第一电感器（13a）的第一端子。 第二并联压电谐振器（12b）的第一电极连接到串联压电谐振器（11）和输出端子（15b）之间的连接点，并且第二并联压电谐振器（12b）的第二电极连接到 第二电感器（13b）的第一端子。 电感器（13a，13b）的第二端接地。 附加的压电谐振器（14）连接在第一并联压电谐振器（12a）的第二电极和第二并联压电谐振器（12b）的第二电极之间。

    Rear projection screen
    3.
    发明公开
    Rear projection screen 有权
    背投屏幕

    公开(公告)号：EP0905556A3

    公开(公告)日：2001-12-12

    申请号：EP98117356.0

    申请日：1998-09-14

    Applicant: Matsushita Electric Industrial Co., Ltd.

    Inventor： Yamaguchi, Hiroshi ,  Ikeda, Kenichi

    IPC: G03B21/62

    CPC classification number: G03B21/625

    Abstract: In a screen for a rear image projection system, a Fresnel lens sheet (4), a lenticular lens array sheet (5) whose longitudinal direction is arranged in the vertical direction, and a light diffusion sheet (7) are provided in that order from the projection side. The light diffusion sheet (7) has louver-shaped light absorption wall columns (8) whose longitudinal direction is arranged in the horizontal direction and a light diffusion layer (9). The light diffusion layer (9) is located on the observation side of the light absorption wall columns (8). Projected light is properly dispersed and exits without causing the absorption loss due to the light absorption wall columns (8). Outside light entering from the observation side is diffused in the light diffusion layer (9) and absorbed by the light absorption wall columns (8). Also, the total reflection component on the lenticular lens surface is absorbed by the light absorption wall columns (8). As a result, the decrease of contrast caused by the diffuse reflection can be reduced greatly. Therefore, a rear projection screen and a rear projector that have a great effect of reducing the reflection of the outside light with a small loss of the transmitted light can be obtained.

    Abstract translation: 在背面图像投影系统用的屏幕中，从背面起依次设置菲涅耳透镜片（4），纵向排列在垂直方向上的双凸透镜阵列片（5）和光漫射片（7） 投影面。 光漫射片（7）具有纵向排列在水平方向上的百叶形吸光壁列（8）和光漫射层（9）。 光扩散层（9）位于光吸收壁列（8）的观察侧。 投射的光线被适当地分散并退出，而不会由于光吸收壁列引起吸收损失（8）。 从观察侧入射的外部光在光扩散层（9）中扩散并被光吸收壁列（8）吸收。 而且，双凸透镜表面上的全反射分量被光吸收壁列（8）吸收。 结果，由漫反射引起的对比度的降低可以大大降低。 因此，可以获得具有减少透射光损失小的外部光反射的巨大效果的背投屏幕和背面投影仪。

    Rear projection screen, its manufacturing method, and video display monitor thereof
    5.
    发明公开
    Rear projection screen, its manufacturing method, and video display monitor thereof 失效
    背投电视，其制造方法，以及视频显示监视器，使用这样的屏幕

    公开(公告)号：EP0818708A1

    公开(公告)日：1998-01-14

    申请号：EP97111852.6

    申请日：1997-07-11

    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    Inventor： Yamaguchi, Hiroshi ,  Ikeda, Kenichi ,  Mitani, Katsuaki

    IPC: G03B21/62

    CPC classification number: G03B21/625

    Abstract: A rear projection screen and its manufacturing method, and video display monitor thereof for preventing moiré by achieving sufficiently large ratio of a pixel pitch on the screen to a lenticular lens pitch. A lenticular lens sheet with the thickness of 0.3 mm or below has a lenticular lens array with a lens pitch Ps of 0.2 m or below on one face and an optical diffusion layer and an optical absorption layer on a flat face at the other side. The optical absorption layer of the lenticular lens sheet is optically bonded to a beam transmitting part with the thickness between 1 mm and 5 mm using a transparent adhesive.

    Abstract translation: 一种背面投影屏幕及其制造方法，以及视频显示监视器，其用于通过实现在屏幕上的像素间距的足够大的比率，以双凸透镜的间距防止云纹。 的双凸透镜片具有0.3毫米或以下的厚度与透镜间距Ps的0.2微米以下在一个面上和光扩散层上，并就在另一侧的平坦面的光吸收层的双凸透镜阵列。 双凸透镜片的光吸收层光学接合到1mm，并且利用透明粘合剂5mm之间的厚度的透光片。

    Angular velocity sensor
    6.
    发明公开
    Angular velocity sensor 失效
    角速度传感器

    公开(公告)号：EP0161049A1

    公开(公告)日：1985-11-13

    申请号：EP85301975.0

    申请日：1985-03-21

    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    Inventor： Kimura, Suzushi ,  Yamaguchi, Hiroshi

    IPC: G01P9/04

    CPC classification number: G01C19/5607

    Abstract: An angular velocity sensor of the tuning-fork gyro type includes a first oscillating element including a drive element (18) and a detection element (20) and a second oscillating element including a monitor element (28) and a detection element (30). A single resilient member (40) couples the oscillating elements to a base support (42). Drive power is supplied only to the drive element (18) which oscillates and causes the second oscillating element to oscillate. A signal produced by the monitor element (28) is fed to circuitry (64, 72, 62) used to adjust the drive power and is combined with the signal produced by the detection elements (20, 30) to produce an output signal indicative of angular velocity.

    Abstract translation: 音叉式陀螺类型的角速度传感器包括具有驱动元件（18）和检测元件（20）的第一振荡元件以及包括监测元件（28）和检测元件（30）的第二振荡元件。 单个弹性构件（40）将摆动元件联接到基部支撑件（42）。 驱动功率仅供给到振动的驱动元件（18），并使第二振荡元件振荡。 由监控元件（28）产生的信号被馈送到用于调节驱动功率的电路（64,72,62），并与由检测元件（20,30）产生的信号组合以产生输出信号，该输出信号指示 角速度。

    Piezoelectric resonator, production method thereof, filter, duplexer, and communication device
    8.
    发明公开
    Piezoelectric resonator, production method thereof, filter, duplexer, and communication device 审中-公开
    Piezoelektrischer谐振器，压电滤波器，双工器，Kommunikationsgerätund Herstellungsverfahren des piezoelektrischen谐振器

    公开(公告)号：EP1530291A2

    公开(公告)日：2005-05-11

    申请号：EP04026193.5

    申请日：2004-11-04

    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    Inventor： Yamaguchi, Hiroshi ,  Nakatsuka, Hiroshi ,  Onishi, Keiji ,  Yamakawa, Takehiko ,  Nakamura, Hiroyuki

    IPC: H03H9/17

    CPC classification number: H03H9/173 ,  H03H3/04 ,  H03H2003/021

    Abstract: The present invention relates to a piezoelectric resonator including: a substrate; a lower electrode (103) provided on or above the substrate; a piezoelectric member (101) provided on or above the lower electrode; an upper electrode (102) provided on or above the piezoelectric member; and a cavity (104) provided below a vibration member consisting of the lower electrode, the piezoelectric member, and the upper electrode. In the case where a resonance frequency of vibration with a thickness of the vibration member being a half of a wavelength is taken as fr1, an average of ultrasonic velocity in a material forming the cavity is taken as Vc2, and a value determined based on the resonance frequency fr1 and the average of ultrasonic velocity Vc2 is λc (=Vc2/fr1), a depth t2 of the cavity is set as shown below, (2n-1) × λc 4 - λc 8 ≦ t 2 ≦ (2n-1) × λc 4 + λc 8 , where n is an arbitrary natural number.

    Abstract translation: 压电谐振器技术领域本发明涉及一种压电谐振器，包括：基板; 设置在所述基板上或上方的下电极（103） 设置在所述下电极上或上方的压电体（101） 设置在压电元件上或上方的上电极（102） 以及设置在由下电极，压电部件和上电极构成的振动部件的下方的空腔（104）。 在将振动部件的厚度为波长的一半的振动的共振频率作为fr1的情况下，将形成空腔的材料的超声波速度的平均值作为Vc2，将基于 谐振频率fr1和超声速度Vc2的平均值为λc（= Vc2 / fr1），空腔的深度t2如下所示设置：（2n-1）×λc DIVIDED 4-λc DIVIDED 8

    Piezoelectric resonator, method of manufacturing piezoelectric resonator, and filter, duplexer, and communication device using piezolectric resonator
    9.
    发明公开
    Piezoelectric resonator, method of manufacturing piezoelectric resonator, and filter, duplexer, and communication device using piezolectric resonator 审中-公开
    使用的压电谐振器是Herstellungsvefahren，以及滤波器，双工器和通信装置，所述压电谐振器

    公开(公告)号：EP1530292A2

    公开(公告)日：2005-05-11

    申请号：EP04026163.8

    申请日：2004-11-04

    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    Inventor： Nakatsuka, Hiroshi ,  Onishi, Keiji ,  Nakamura, Hiroyuki ,  Yamakawa, Takehiko ,  Yamaguchi, Hiroshi

    IPC: H03H9/56

    CPC classification number: H03H3/04 ,  H03H9/0211 ,  H03H9/173 ,  Y10T29/42

    Abstract: A piezoeletric resonator includes: a substrate (105); a lower electrode (103) formed on or above the substrate; a piezoeletric body (101) formed on or above the lower electrode; an upper electrode (102) formed on or above the piezoeletric body; and a cavity (104) under a vibrating portion formed by the lower electrode, the piezoeletric body, and the upper electrode. Where a resonant frequency of vibration with a thickness of the vibrating portion being a half of a wavelength is taken as fr, an average of ultrasonic velocity in a material forming the cavity is taken as Vc, and a value determined based on the resonant frequency fr and the average of ultrasonic velocity Vc is taken as λc (=Vc/fr), a depth of the cavity is set so as to be equal to or larger than n×λc/2-λc/8 and equal to or smaller than n×λc/2+λc/8.

    Abstract translation: 甲piezoeletric谐振器包括：基板（105）; 形成在所述基体上的下部电极（103）; 一个piezoeletric体（101）上形成的或在下部电极的上方; 到上或piezoeletric成形体上述上部电极（102）; 并且由下部电极，所述piezoeletric体，和上部电极而形成的振动部下方的空腔（104）。 其中振动的厚度振动部是一个波长的一半的谐振频率被取为FR，平均声速在形成腔的材料设为Vc和确定性的值矿洞基于谐振频率fr 和超声波速度Vc的平均值作为拉姆达C（= VC / FR），空腔的深度被设定为比为nx拉姆达C / 2的λC / 8等于或大于和等于或小于 比为nx拉姆达C / 2 +拉姆达C /第八

    Piezoelectric device, antenna duplexer, and method of manufacturing piezolelectric resonators used therefor
    10.
    发明公开
    Piezoelectric device, antenna duplexer, and method of manufacturing piezolelectric resonators used therefor 审中-公开
    压电谐振器的压电装置，天线双工器及其制造方法

    公开(公告)号：EP1530290A2

    公开(公告)日：2005-05-11

    申请号：EP04026165.3

    申请日：2004-11-04

    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    Inventor： Nakamura, Hiroyuki ,  Onishi, Keiji ,  Nakatsuka, Hiroshi ,  Yamaguchi, Hiroshi ,  Yamakawa, Takehiko

    IPC: H03H3/02 ,  H03H9/58

    CPC classification number: H03H9/605 ,  H03H3/02 ,  H03H9/02118 ,  H03H9/587

    Abstract: A piezoelectric device (100) includes first and second piezoeletric resonators (110, 120). The first piezoeletric resonator (110) has a structure in which a cavity (111), a lower electrode (112), apiezoeletric layer (113), and an upper electrode (114) are formed on a substrate (101). The second piezoeletric resonator (120) has a structure in which a cavity (121), a lower electrode (122), a piezoeletric layer (123), and an upper electrode (124) are formed on the substrate (101). A feature of the above-structure piezoelectric device (100) is that the piezoeletric layers (113, 123) have the same film thickness and the depth (t1) of the cavity (111) of the first piezoeletric resonator (110) is different from the depth (t2) of the cavity (121) of the second piezoeletric resonator (120).

    Abstract translation: 压电装置（100）包括第一和第二谐振器piezoeletric（110，120）。 所述第一谐振器piezoeletric（110）具有在其中的腔体（111），在上电极（114）的下部电极（112）apiezoeletric层（113），和底物上的（101）形成的结构。 所述第二谐振器piezoeletric（120）具有在其中的腔体（121），下部电极（122），一个piezoeletric层（123），并且在上部电极（124）在基板（101）形成的结构。 上述结构的压电装置（100）的特征是DASS死piezoeletric层（113，123）具有相同的膜厚度和所述第一piezoeletric谐振器（110）的腔（111）的深度（T1）是从不同的 所述第二谐振器piezoeletric（120）的腔（121）的深度（T2）。

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