会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Surface acoustic wave device comprising langasite single crystal substrate
    • 表面声波装置,包括硅藻土单晶基板
    • US06285112B1
    • 2001-09-04
    • US09038006
    • 1998-03-11
    • Masao TakeuchiMitsuhiro TanakaYuichiro Imanishi
    • Masao TakeuchiMitsuhiro TanakaYuichiro Imanishi
    • H01L4108
    • H03H9/0259
    • A surface acoustic wave device including a substrate and an electrode structure formed on the substrate, said substrate being made of an X-cut Langasite single crystal, a rotation Y-cut Langasite single crystal or a double rotation Y-cut Langasite single crystal. When the X-cut Langasite crystal having a large reflection coefficient is used, the electrode structure is formed to constitute a surface acoustic wave resonator. When the rotation Y-cut Langasite crystal having a large electro-mechanical coupling coefficient and a small reflection coefficient is used, the electrode structure is formed to constitute a surface acoustic wave filter. When the double rotation Y-cut Langasite crystal having an NSPUDT property is used, the electrode structure is formed to constitute a surface acoustic wave filter having a low insertion loss and an excellent phase property.
    • 一种表面声波装置,包括在基板上形成的基板和电极结构,所述基板由X切割朗氏石单晶,旋转Y切割斜长石单晶或双旋转Y切割朗氏石单晶制成。 当使用具有大反射系数的X切割朗氏硅酸盐晶体时,形成电极结构以构成表面声波谐振器。 当使用具有大的机电耦合系数和小的反射系数的旋转Y切割朗氏硅酸盐晶体时,形成电极结构以构成表面声波滤波器。 当使用具有NSPUDT特性的双旋转Y型朗氏硅酸盐晶体时,形成电极结构以构成具有低插入损耗和优异的相位特性的表面声波滤波器。
    • 3. 发明授权
    • Surface acoustic wave device comprising langasite single crystal substrate
    • 表面声波装置,包括硅藻土单晶基板
    • US06194809B1
    • 2001-02-27
    • US09401406
    • 1999-09-22
    • Masao TakeuchiMitsuhiro Tanaka
    • Masao TakeuchiMitsuhiro Tanaka
    • H03H925
    • H03H9/0259
    • A surface acoustic wave device including a substrate and an electrode structure formed on the substrate, said substrate being made of a doubly rotated Y-cut (&agr;X-&thgr;Y cut) Langasite (La3Ga5SiO14), a rotation angle &agr; from the X axis being substantially 50°±5° and a rotation angle &thgr; from the Y axis being substantially 19°-30°. The device further includes a normal type electrode structure which reveals a natural single-phase unidirectional transducer property together with an anisotropy of the substrate. The device further has a double electrode type electrode structure which cancels the directionality, or a floating type electrode structure which reverses the directionality. The electrode structure is formed to constitute a surface acoustic wave filter having a low insertion loss and an excellent phase property.
    • 一种表面声波装置,包括基板和形成在基板上的电极结构,所述基板由双重旋转的Y切割(αX-θY切割)Langasite(La3Ga5SiO14)制成,从X轴旋转的角度α大致为50 °±5°,Y轴的旋转角θ大致为19°-30°。 该装置还包括正常型电极结构,其显示天然单相单向换能器性质以及基板的各向异性。 该装置还具有消除方向性的双电极型电极结构,或者使方向性反转的浮动型电极结构。 电极结构被形成为具有低插入损耗和优异相位特性的表面声波滤波器。
    • 4. 发明授权
    • Surface acoustic wave device
    • 表面声波装置
    • US5773911A
    • 1998-06-30
    • US901277
    • 1997-07-29
    • Mitsuhiro TanakaMasao TakeuchiKazuhiko YamanouchiHiroyuki Odagawa
    • Mitsuhiro TanakaMasao TakeuchiKazuhiko YamanouchiHiroyuki Odagawa
    • H03H9/02H03H9/145
    • H03H9/02543H03H9/14505
    • A surface acoustic wave device including a piezoelectric substrate having NSPUDT behavior and a directionality reversed electrode structure including positive electrode, negative electrode and floating electrode. Positive and negative electrode fingers each having a width of .lambda./8 are arranged interdigitally at a pitch of .lambda. and floating electrode fingers having a width of 3 .lambda./8 are arranged between successive positive and negative fingers with an edge distance of .lambda./8. A directivity due to NSPUDT behavior of the substrate can be reversed. Positive and negative electrode fingers are arranged interdigitally at a pitch of .lambda. and between successive positive and negative electrode fingers are arranged floating electrode fingers having a reflecting coefficient different from that of the positive and negative electrodes.
    • 包括具有NSPUDT行为的压电基片和包括正极,负极和浮动电极的方向性反转电极结构的表面声波装置。 每个具有λ/ 8宽度的正电极指和负电极指以十字形的间距设置,并且具有3λ/ 8宽度的浮动电极指被布置在连续的正极和负极之间,边缘距离为λ/ 8。 由于衬底的NSPUDT行为引起的方向性可以颠倒。 正电极指和负电极指以叉指间隔地布置,并且连续的正电极指和负电极指之间布置有具有与正极和负极的反射系数不同的反射系数的浮动电极指。
    • 5. 发明授权
    • Surface acoustic wave device
    • 表面声波装置
    • US5698927A
    • 1997-12-16
    • US524060
    • 1995-09-06
    • Mitsuhiro TanakaMasao TakeuchiKazuhiko YamanouchiHiroyuki Odagawa
    • Mitsuhiro TanakaMasao TakeuchiKazuhiko YamanouchiHiroyuki Odagawa
    • H03H9/02H03H9/145H03H9/25H01L41/08
    • H03H9/14505H03H9/02543
    • A surface acoustic wave device including a substrate made of a lithium tetraborate single crystal (Li.sub.2 B.sub.4 O.sub.7) whose cut and propagating direction are determined such that Euler cut angles (.psi., .theta., .phi.) are .psi.=+5.degree..about.-5.degree., .theta.=9.degree..about.29.degree. and 32.degree..about.86.degree. and .phi.=85.degree..about.95.degree., and an electrode structure formed on a surface of the substrate to realize a natural single-phase unidirectional transducer property together with an anisotropy of said substrate. A lithium tetraborate substrate having cut angles of (0.degree., 51.degree., 90.degree.) shows an ideal NSPUDT and a lithium tetraborate substrate having cut angles of (0.degree., 78.degree., 90.degree.) reveals a zero temperature coefficient of delay. A directionality reversed electrode structure or a directionality corrected electrode structure may be advantageously used.
    • 包括由四硼酸锂单晶(Li2B4O7)制成的基板的表面声波装置,其切割和传播方向被确定为使得欧拉切角(psi,θ,phi)为psi = + 5°DIFFANCE -5°,θ= 9°差29°,32°差86°,phi = 85°D 95°,电极结构形成在基板表面上,实现天然单相单向换能器特性以及所述基板的各向异性。 切割角度为(0°,51°,90°)的四硼酸锂基板显示出理想的NSPUDT,切割角度为(0°,78°,90°)的四硼酸锂基板显示零温度延迟系数。 可以有利地使用方向性反转电极结构或方向性校正电极结构。
    • 6. 发明授权
    • Surface acoustic wave device and method of designing the same
    • 表面声波装置及其设计方法
    • US06255759B1
    • 2001-07-03
    • US09258816
    • 1999-02-26
    • Masao TakeuchiNoritoshi Kimura
    • Masao TakeuchiNoritoshi Kimura
    • H03H964
    • H03H9/6423H03H9/14505
    • A method for manufacturing a surface acoustic wave device including forming a single-phase unidirectional transducer based on calculating frequency responses of the positive and negative conversion losses along a surface acoustic wave propagation direction by coupling-of-modes equations, where A+(x) and A−(x) are the mode amplitudes of the surface acoustic waves propagated respectively in the positive direction (forward direction) and negative direction (backward direction) of the x axis and where boundary conditions of the initial and final analytical points are respectively expressed by A+(0)=0 and A−(L)=0. The method includes setting A+(0)=0 (or A−(L)=0) as a boundary condition, setting A−(0) (or A+(L)) to an arbitrary value as an initial value of A−(0) (or A+(L)), and calculating coupling-mode-equations while repeatedly altering A−(0) (or A+(L)) until A−(L)=0 (or until A+(0)=0).
    • 一种用于制造表面声波装置的方法,包括:通过耦合模式方程式,基于计算沿着表面声波传播方向的正和负转换损耗的频率响应,形成单相单向换能器,其中A +(x)和 A-(x)是分别在x轴的正方向(正方向)和负方向(向后方向)上传播的表面声波的模振幅,并且初始和最终分析点的边界条件分别由 A +(0)= 0和A-(L)= 0。 该方法包括将A +(0)= 0(或A-(L)= 0)设置为边界条件,将A-(0)(或A +(L))设置为任意值作为初始值A- (或A +(L)),并且在重复改变A-(0)(或A +(L))的同时计算耦合模式方程,直到A-(L)= 0(或直到A +(0)= 0) 。
    • 8. 发明授权
    • Article identifying system
    • 文章识别系统
    • US06879264B2
    • 2005-04-12
    • US09874185
    • 2001-06-04
    • Hitoshi HidakaMasao Takeuchi
    • Hitoshi HidakaMasao Takeuchi
    • G06K19/07G01S13/74G06K7/00G06K19/00G06Q50/22G10K15/04H04Q5/22
    • G06K7/0008
    • An article identifying system for allowing a user, especially a visually handicapped person to identify an article correctly. The article identifying system 1 comprises a communication tag 100, each of which is attached to an article, and an information output device 200. Each of the communication tags 100 comprises: a memory 140 for storing an identifier assigned to the article with each of the communication tags 100; and an antenna 110 and a transceiver 120 for transmitting the stored identifier wirelessly. The information output device 200 comprises: a memory 230 for storing the information data associated with the identifier assigned to that article; an antenna plate 210 forming a planar surface on which one or more articles can be placed and a transceiver 220 for receiving the identifier from the communication tag 100 when the article with the communication tag is placed in a communication area on the planar surface; and a speaker 260 for outputting the information data from the memory 230.
    • 用于允许用户,特别是视障人士正确地识别物品的物品识别系统。 物品识别系统1包括通信标签100,每个通信标签100都连接到物品,以及信息输出设备200.每个通信标签100包括:存储器140,用于存储分配给该物品的标识符, 通信标签100; 以及用于无线地发送存储的标识符的天线110和收发机120。 信息输出装置200包括:存储器230,用于存储与分配给该物品的标识符相关联的信息数据; 天线板210,其形成可放置一个或多个物品的平坦表面;以及收发器220,用于当具有通信标签的物品放置在平面上的通信区域中时,从通信标签100接收标识符; 以及用于从存储器230输出信息数据的扬声器260。