公开(公告)号：US06933810B2

公开(公告)日：2005-08-23

申请号：US10724577

申请日：2003-12-01

申请人： Michio Miura ,  Takashi Matsuda ,  Yoshio Satoh ,  Masanori Ueda

发明人： Michio Miura ,  Takashi Matsuda ,  Yoshio Satoh ,  Masanori Ueda

IPC分类号： H03H9/145 ,  H03H9/02 ,  H03H9/64 ,  H03H9/72 ,  H03H9/25

CPC分类号： H03H9/02834 ,  H03H9/02559

摘要： A surface acoustic wave device includes a piezoelectric substrate having a first surface on which comb-like electrodes are formed, and a second surface, and a support substrate joined to the second surface of the piezoelectric substrate. The piezoelectric substrate is made of lithium, tantalate, and the support substrate is made of sapphire. The following expressions being satisfied: T/t 10  (2) where T is a thickness of the piezoelectric substrate, t is a thickness of the support substrate, and λ is a wavelength of a surface acoustic filter, propagated along the first surface of the piezoelectric substrate.

摘要翻译： 表面声波装置包括具有形成有梳状电极的第一表面和第二表面的压电基板和连接到压电基板的第二表面的支撑基板。 压电基板由钽酸锂制成，支撑基板由蓝宝石制成。 满足以下表达式：<？in-line-formula description =“In-line Formulas”end =“lead”？> T / t <1/3（1）<？in-line-formula description =“In- 行公式“end =”tail“？> <？in-line-formula description =”In-line Formulas“end =”lead“？> T / lambda> 10（2）<？in-line-formula description = 在线公式“end =”tail“？>其中T是压电基板的厚度，t是支撑基板的厚度，λ是表面声滤波器的波长，沿着压电的第一表面传播 基质。

公开(公告)号：US06484576B2

公开(公告)日：2002-11-26

申请号：US09741834

申请日：2000-12-22

申请人： Masanori Yachi ,  Yoshio Satoh ,  Masaaki Ono ,  Yoshiro Fujiwara ,  Sumio Yamada ,  Hiroshi Ishikawa

发明人： Masanori Yachi ,  Yoshio Satoh ,  Masaaki Ono ,  Yoshiro Fujiwara ,  Sumio Yamada ,  Hiroshi Ishikawa

IPC分类号： G01P904

CPC分类号： G01C19/5607

摘要： A tuning-fork vibratory gyro has first and second arms and a base integrally connected to the first and second arms. The gyro includes drive electrodes used to generate tuning-fork vibrations due to a piezoelectric transversal effect, and detection electrodes provided on the first and second arms and used to output a detection voltage due to an angular velocity.

摘要翻译： 音叉式振动陀螺仪具有第一和第二臂和与第一和第二臂一体连接的基座。 陀螺仪包括用于由于压电横向效应而产生音叉振动的驱动电极，以及设置在第一和第二臂上的检测电极，用于输出由角速度引起的检测电压。

公开(公告)号：USRE37375E1

公开(公告)日：2001-09-18

申请号：US09158074

申请日：1998-09-22

申请人： Yoshio Satoh ,  Osamu Ikata ,  Tsutomu Miyashita ,  Takashi Matsuda ,  Mitsuo Takamatsu

发明人： Yoshio Satoh ,  Osamu Ikata ,  Tsutomu Miyashita ,  Takashi Matsuda ,  Mitsuo Takamatsu

IPC分类号： H03H964

CPC分类号： H03H9/6436 ,  H03H9/0576 ,  H03H9/1071 ,  H03H9/6433 ,  H03H9/6483 ,  H03H9/72 ,  H03H9/725 ,  H03H2250/00

摘要： A SAW filter includes a first SAW resonator having a pair of terminals and a predetermined resonance frequency (frp), the first SAW resonator being provided in a parallel arm of the SAW filter. A second SAW resonator has a pair of terminals and a predetermined resonance frequency (frs) approximately equal to a predetermined antiresonance frequency of the first SAW resonator (fap). The second SAW resonator is provided in a series arm of the SAW filter. An inductance element is connected in series to the first SAW resonator.

摘要翻译： SAW滤波器包括具有一对端子和预定谐振频率（frp）的第一SAW谐振器，第一SAW谐振器设置在SAW滤波器的并联臂中。 第二SAW谐振器具有大约等于第一SAW谐振器（fap）的预定反谐振频率的一对端子和预定谐振频率（frs）。 第二SAW谐振器设置在SAW滤波器的串联臂中。 电感元件与第一SAW谐振器串联连接。

公开(公告)号：US06230562B1

公开(公告)日：2001-05-15

申请号：US08816123

申请日：1997-03-11

申请人： Hiroshi Ishikawa ,  Masanori Yachi ,  Sumio Yamada ,  Yoshitaka Takahashi ,  Yoshio Satoh

发明人： Hiroshi Ishikawa ,  Masanori Yachi ,  Sumio Yamada ,  Yoshitaka Takahashi ,  Yoshio Satoh

IPC分类号： G01C1900

CPC分类号： G01C19/5607

摘要： A detection circuit for a vibratory gyro includes a first circuit which detects a detection signal output from the vibratory gyro and produces an output signal indicative of an angular velocity applied to the vibratory gyro, and a second circuit which is operatively coupled to the first circuit and reduces a leakage component included in the detection signal.

摘要翻译： 用于振动陀螺仪的检测电路包括第一电路，其检测从振动陀螺仪输出的检测信号，并产生指示施加到振动陀螺仪的角速度的输出信号;以及第二电路，其可操作地耦合到第一电路和 减少检测信号中包含的泄漏成分。

公开(公告)号：US06121860A

公开(公告)日：2000-09-19

申请号：US831332

申请日：1997-03-31

申请人： Jun Tsutsumi ,  Osamu Ikata ,  Yoshio Satoh

发明人： Jun Tsutsumi ,  Osamu Ikata ,  Yoshio Satoh

IPC分类号： H03H9/145 ,  H03H9/00 ,  H03H9/64

CPC分类号： H03H9/6479 ,  H03H9/0028 ,  H03H9/643 ,  H03H9/6463

摘要： The multimode surface acoustic wave filter includes two surface acoustic wave resonators closely arranged on a piezoelectric substrate in a direction perpendicular to the propagation direction of surface acoustic waves and acoustically coupled by a coupling section, each of the surface acoustic wave resonators including an interdigital transducer and two reflectors disposed closely on both sides of the interdigital transducer in a direction parallel to the propagation direction of the surface acoustic waves, the interdigital transducer having an excitation section for exciting the surface acoustic waves and a signal terminal section for inputting an electric signal, each of the reflectors having a grating section and a terminal section, wherein the velocity of surface acoustic waves propagating through the coupling section is a little larger than the velocity of the surface acoustic waves propagating through the excitation section of the interdigital transducer.

摘要翻译： 多模声表面波滤波器包括两个表面声波谐振器，其紧密地布置在压电基片上，在与声表面波的传播方向垂直的方向上，并由耦合部分声学耦合，每个声表面波谐振器包括一指叉式换能器和 两个反射器在平行于表面声波的传播方向的方向上紧密地布置在叉指式换能器的两侧上，叉指换能器具有用于激励表面声波的激励部分和用于输入电信号的信号端子部分 具有光栅部分和端子部分的反射器，其中通过耦合部分传播的表面声波的速度比通过叉指换能器的激励部分传播的表面声波的速度稍大。

公开(公告)号：US6075426A

公开(公告)日：2000-06-13

申请号：US153336

申请日：1998-09-15

申请人： Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata ,  Yoshio Satoh

发明人： Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata ,  Yoshio Satoh

IPC分类号： H03H9/145 ,  H03H9/64

CPC分类号： H03H9/14552 ,  H03H9/6426

摘要： A surface acoustic wave device includes a piezoelectric substrate and plural IDTs for sending and receiving SAW mounted on the substrate. At least one of the IDTs includes a positive electrode including plural positive split electrodes (PSEs) and a negative electrode including plural negative split electrodes (NSEs). The PSEs and NSEs are arranged alternately. Each of the PSEs andNSEs has apair of electrode fingers. Two electrode fingers of each of the split electrodes are different in width in a direction in which a SAW is excited. An angle .alpha. determined by a direction transverse to the electrode fingers from one of the two electrode fingers having a smaller reflection factor toward the other one having a larger reflection factor and a direction in which the SAW excited by the IDT including the split electrodes travels to one of the IDTs for receiving the SAW is equal to or larger than 0.degree. and smaller than 90.degree., i.e., 0.ltoreq..alpha.

摘要翻译： 表面声波装置包括压电基板和用于发送和接收安装在基板上的SAW的多个IDT。 IDT中的至少一个包括包括多个正分裂电极（PSE）的正电极和包括多个负分离电极（NSE）的负电极。 PSEs和NSEs交替排列。 每个PSE和NSE都有电极指的孔。 每个分离电极的两个电极指在SAW被激发的方向上的宽度不同。 由横向于电极指的方向由具有较小反射系数的两个电极指的另一个具有较大反射系数的方向确定的角度α和由包括分离电极的IDT激发的SAW的方向传播到 用于接收SAW的IDT之一等于或大于0°并小于90°，​​即0 <α<90°。

公开(公告)号：US6023204A

公开(公告)日：2000-02-08

申请号：US153335

申请日：1998-09-15

申请人： Osamu Ikata ,  Yoshio Satoh ,  Takashi Matsuda ,  Jun Tsutsumi ,  Satoshi Miyamoto

发明人： Osamu Ikata ,  Yoshio Satoh ,  Takashi Matsuda ,  Jun Tsutsumi ,  Satoshi Miyamoto

IPC分类号： H03H9/25 ,  H03H9/05 ,  H03H9/64 ,  H03H9/10

CPC分类号： H03H9/1071 ,  H03H2250/00

摘要： A surface acoustic wave device includes a plurality of surface acoustic wave filter chips having external connection terminals and a package accommodating the plural surface acoustic wave filter chips. The package is provided with a plurality of terminals for connection with the surface acoustic wave filter chips, and one of the external connection terminals of a first one of the surface acoustic wave filter chips is connected with one of the terminals of the package via a second one of the surface acoustic wave filter chips.

摘要翻译： 表面声波装置包括具有外部连接端子的多个表面声波滤波器芯片和容纳多个表面声波滤波器芯片的封装。 该封装设置有多个用于与表面声波滤波器芯片连接的端子，并且第一个声表面波滤波器芯片的外部连接端子中的一个外部连接端子通过第二个 一个声表面波滤波芯片。

公开(公告)号：US5874866A

公开(公告)日：1999-02-23

申请号：US937380

申请日：1997-09-25

申请人： Yoshio Satoh ,  Osamu Ikata ,  Takashi Matsuda ,  Yoshitaka Takahashi ,  Ivan Dimitrov Avramov

发明人： Yoshio Satoh ,  Osamu Ikata ,  Takashi Matsuda ,  Yoshitaka Takahashi ,  Ivan Dimitrov Avramov

IPC分类号： H03B5/30 ,  H03B5/32 ,  H03H9/25 ,  H03H9/64

CPC分类号： H03H9/6483 ,  H03B5/326

摘要： An oscillation circuit of phase-shift type includes a surface acoustic wave filter in a feedback circuit, the surface acoustic wave filter having first and second one-port surface acoustic wave resonators of different resonance frequencies connected in a ladder configuration. The oscillation circuit has a high C/N ratio with a large bandwidth of variable frequency and can be fabricated in a small size with low costs.

摘要翻译： 相移型振荡电路包括反馈电路中的表面声波滤波器，该声表面波滤波器具有以梯形结构连接的具有不同谐振频率的第一和第二单端口声表面波谐振器。 振荡电路具有高C / N比，具有可变频率的大带宽，并且可以以低成本制造成小尺寸。

公开(公告)号：US5561406A

公开(公告)日：1996-10-01

申请号：US412318

申请日：1995-03-29

申请人： Osamu Ikata ,  Yoshio Satoh ,  Nobuo Hirasawa ,  Hideki Ohmori

发明人： Osamu Ikata ,  Yoshio Satoh ,  Nobuo Hirasawa ,  Hideki Ohmori

IPC分类号： H03H9/72 ,  H01P1/213 ,  H03H9/05 ,  H03H9/64 ,  H04B1/52 ,  H01P5/12

CPC分类号： H03H9/72 ,  H03H9/0576 ,  H03H9/725 ,  H04B1/525

摘要： A multilayer duplexer package is provided, which includes: two surface-acoustic-wave filter chips having different center pass band frequencies; and at least two phase matching circuits for matching the phase of one filter chip to that of the other filter chip, said phase matching circuits respectively comprising strip lines stacked one above another, and said strip lines each having a characteristic impedance higher than the characteristic impedance of an external circuit to be connected to the duplexer package.

摘要翻译： 提供一种多层双工器封装，其包括：具有不同中心通带频率的两个表面声波滤波器芯片; 以及用于将一个滤波器芯片的相位与另一个滤波器芯片的相位匹配的至少两个相位匹配电路，所述相位匹配电路分别包括彼此堆叠的带状线，并且所述带状线各自具有高于特征阻抗的特性阻抗 的外部电路连接到双工器封装。

公开(公告)号：US5325573A

公开(公告)日：1994-07-05

申请号：US70176

申请日：1993-06-02

申请人： Tsutomu Miyashita ,  Yoshio Satoh

发明人： Tsutomu Miyashita ,  Yoshio Satoh

IPC分类号： H03H3/08 ,  H03H9/02 ,  H03H9/145 ,  H01L41/22

CPC分类号： H03H9/02921 ,  H03H3/08 ,  H03H9/1455 ,  Y10T29/42

摘要： A surface-acoustic-wave device comprises a substrate of a piezoelectric material for providing a passage of surface acoustic waves at an upper major surface of the substrate, a plurality of interdigital electrodes provided on the piezoelectric substrate in a row in correspondence to the passage of surface acoustic waves such that the electrodes are aligned in the propagating direction of the surface acoustic waves, each of the plurality of interdigital electrodes having a first part connected to a bonding pad on the substrate for external electric connection and having a plurality of finger electrodes extending parallel with each other in a direction crossing the propagating surface acoustic waves, and a second part separated from the first part and having a plurality of finger electrodes extending parallel with each other in a direction opposite to the direction of the finger electrodes of the first part. An interconnection pattern is provided on the surface of the substrate in correspondence to a region offset from the passage of the surface acoustic waves for connecting the second parts of adjacent interdigital electrodes with each other.

摘要翻译： 表面声波装置包括：压电材料的基板，用于在基板的上主表面处提供表面声波的通过;多个指状电极，其设置在压电基板上， 表面声波，使得电极在表面声波的传播方向上对齐，多个叉指电极中的每一个具有连接到用于外部电连接的基板上的焊盘的第一部分，并且具有多个指状电极延伸 在与第一部分相交的方向上彼此平行，并且具有与第一部分的指状电极的方向相反的方向彼此平行延伸的多个指状电极的第二部分， 。 对应于与用于连接相邻叉指电极的第二部分的表面声波的通过偏移的区域，在基板的表面上提供互连图案。