公开(公告)号：US20110138911A1

公开(公告)日：2011-06-16

申请号：US12964016

申请日：2010-12-09

申请人： Masahiro OSHIO

发明人： Masahiro OSHIO

IPC分类号： G01C19/56

CPC分类号： G01C19/5642

摘要： A resonator element includes: drive beams including a first beam and a second beam that vibrate in torsional vibration modes and are elongated side by side in a first direction; support parts that couple one ends and the other ends of the first beam and the second beam; and detection arms elongated from the respective first beam and second beam in a second direction orthogonal to the first direction in a plan view, wherein, in a drive mode, the first beam and the second beam torsionally vibrate in opposite directions to each other, the respective detection arms vibrate in a normal direction of a plane containing the first direction and the second direction, and the detection arm elongated from the first beam and the detection arm elongated from the second beam vibrate in the same direction as each other.

摘要翻译： 谐振元件包括：驱动梁，包括第一梁和第二梁，其以扭转振动模式振动并且在第一方向上并排拉长; 支撑部件，其将第一梁和第二梁的一端和另一端相连; 以及在平面图中沿与第一方向正交的第二方向从相应的第一光束和第二光束伸长的检测臂，其中，在驱动模式中，第一光束和第二光束彼此相反的方向扭转振动， 各个检测臂沿着包含第一方向和第二方向的平面的法线方向振动，并且从第一光束伸长的检测臂和从第二光束伸长的检测臂在彼此相同的方向上振动。

公开(公告)号：US07579932B2

公开(公告)日：2009-08-25

申请号：US11571432

申请日：2005-07-01

申请人： Michiaki Takagi ,  Katsuro Yoneya ,  Masahiro Oshio

发明人： Michiaki Takagi ,  Katsuro Yoneya ,  Masahiro Oshio

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

CPC分类号： H03H9/0042 ,  H03H9/02551 ,  H03H9/02842 ,  H03H9/14588

摘要： A longitudinally coupled multi-mode SAW resonator filter includes input and output interdigital transducers (IDTs) with a control IDT therebetween to control a state of the surface acoustic wave. The input, output, and control IDTs alternatively arrange two different zones C and E having respective electrode period lengths PC and PE, being equal to a sum of the electrode finger width L and spacing S between electrode fingers, and a number of respective pairs MC and ME of electrode fingers is set to 1 in both zones C and E. Electrode fingers in zones C and E are all connected to a feeder conductor. Hence, a filter having small insertion loss, and a wide fractional bandwidth of 2000-4000 ppm is achieved by canceling and decreasing sums of reflected waves from the electrode fingers in zones C and E, and decreasing the effective reflection coefficient per the electrode finger.

摘要翻译： 纵向耦合的多模SAW谐振滤波器包括其间具有控制IDT的输入和输出叉指式换能器（IDT），以控制表面声波的状态。 输入，输出和控制IDT交替地布置具有相应的电极周期长度PC和PE的两个不同的区域C和E，其等于电极指之间的电极指宽度L和间距S之和以及多个相应的对MC 并且电极指的ME在两个区域C和E中都设置为1.区域C和E中的电极手指都连接到馈线导体。 因此，通过抵消和减少来自区域C和E中的电极指的反射波的总和，并且降低每个电极指的有效反射系数，实现了具有小插入损耗和2000-4000ppm的宽分数带宽的滤波器。

公开(公告)号：US20050122188A1

公开(公告)日：2005-06-09

申请号：US10976242

申请日：2004-10-28

申请人： Tsukasa Funasaka ,  Masahiro Oshio

发明人： Tsukasa Funasaka ,  Masahiro Oshio

IPC分类号： H03H9/02 ,  H03H9/64

CPC分类号： H03H9/02236 ,  H03H9/02551 ,  H03H9/02834

摘要： A surface acoustic wave element is provided including, as a substrate, a quartz-rotator Y plate whose Euler angle is expressed as (0, θ, ψ), and an IDT and reflectors provided on this substrate. The IDT is formed of Al as its main ingredient, and arranged so that an angle ψ, which the propagation direction of a surface acoustic wave and the X-axis of the quartz-rotator Y plate make, is 90±10°, and a normalized film-thickness H/λ of the IDT, and the cut angle θ satisfy the following Relation A: θ min≧θ≧θ max (where, θ=129 through 144°); θ min=857.06(H/λ)2+23.656(H/λ)+123.68; and θ max=2502.4(H/λ)2+73.1(H/λ)+121.7.

摘要翻译： 提供了一种表面声波元件，其包括作为基底的欧拉角表示为（0，θ，psi）的石英旋转器Y板，以及设置在该基板上的IDT和反射器。 IDT由Al作为其主要成分，并且布置成使得表面声波的传播方向和石英旋转器Y板的X轴的角度psi为90±10°，并且 IDT的标准化膜厚度H /λ和切割角度θ满足以下关系A：<？in-line-formula description =“In-line Formulas”end =“lead”>>θmin> =θ> = theta max（其中，θ= 129到144°）; <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> theta min = 857.06（H /lambda)²+23.656(H/lambda)+123.68; 和<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> theta max = 2502.4（ H /λ）2 + 73.1（H /λ）+ 121.7。 <？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US08850887B2

公开(公告)日：2014-10-07

申请号：US13404475

申请日：2012-02-24

申请人： Yoshinao Yanagisawa ,  Masahiro Oshio ,  Takayuki Kikuchi ,  Toshihiro Nishida ,  Masayuki Takahashi

发明人： Yoshinao Yanagisawa ,  Masahiro Oshio ,  Takayuki Kikuchi ,  Toshihiro Nishida ,  Masayuki Takahashi

IPC分类号： G01C19/56 ,  H03H9/24 ,  G01C19/5776

CPC分类号： G01C19/56 ,  G01C19/5776 ,  H03H9/2468

摘要： A detection circuit includes a synchronous detection circuit (synchronous detection section) that synchronously detects a signal that includes a detection signal of a vibrator (an output signal of an amplifier), a switched capacitor filter (SCF) circuit that filters a signal that has been synchronously detected by the synchronous detection circuit (an output signal of a programmable gain amplifier), and an output buffer that buffers and outputs a signal that has been filtered by the SCF circuit, the gain of the SCF circuit being larger than 1.

摘要翻译： 检测电路包括同步检测电路（同步检测部分），其同步地检测包括振动器的检测信号（放大器的输出信号）的信号，对已经被存储的信号进行滤波的开关电容滤波器（SCF）电路 由同步检测电路（可编程增益放大器的输出信号）同步检测的缓冲器，其输出缓冲并输出由SCF电路滤波的信号，SCF电路的增益大于1。

公开(公告)号：US08573058B2

公开(公告)日：2013-11-05

申请号：US12710569

申请日：2010-02-23

申请人： Masahiro Oshio

发明人： Masahiro Oshio

IPC分类号： G01P15/125

CPC分类号： G01P15/125 ,  B81B3/0051 ,  B81B2201/0235 ,  G01P1/023 ,  G01P15/0802 ,  G01P2015/0814

摘要： An acceleration sensor includes: a support member; a fixed electrode provided on the support member; a movable unit; a movable electrode provided on the movable unit and disposed opposed to the fixed electrode to generate capacity; and a projection extending from the opposed surface of at least either the fixed electrode or the movable electrode in one direction within the surface.

摘要翻译： 加速度传感器包括：支撑构件; 设置在所述支撑构件上的固定电极; 可移动单元; 可移动电极，设置在所述可动单元上并与所述固定电极相对设置，以产生能力; 以及从固定电极或可动电极中的至少一个的相对表面在表面内的一个方向延伸的突起。

公开(公告)号：US20090058226A1

公开(公告)日：2009-03-05

申请号：US12204746

申请日：2008-09-04

申请人： Makoto Furuhata ,  Masahiro Oshio ,  Takamitsu Higuchi

发明人： Makoto Furuhata ,  Masahiro Oshio ,  Takamitsu Higuchi

IPC分类号： H01L41/04 ,  G01P15/09

CPC分类号： G01P15/097 ,  G01C19/5607 ,  G01P15/09 ,  H03H9/21

摘要： A tuning fork oscillating piece includes: a base; a pair of oscillating arms extending from the base in directions substantially parallel with each other; a drive piezoelectric element provided at least on one main surface or side surface of each of the oscillating arms to allow bending oscillation of the oscillating arms by piezoelectric distortion caused by applied charge; a detection piezoelectric element provided on the surface opposed to the surface of each of the oscillating arms on which the drive piezoelectric element is provided to convert the piezoelectric distortion caused by the bending oscillation of the oscillating arms into charge and output the charge. The drive piezoelectric element has a drive piezoelectric section. The detection piezoelectric element has a detection piezoelectric section. The absolute value of the piezoelectric d constant of the drive piezoelectric section is larger than the absolute value of the piezoelectric d constant of the detection piezoelectric section. The absolute value of the piezoelectric g constant of the detection piezoelectric section is larger than the absolute value of the piezoelectric g constant of the drive piezoelectric section.

摘要翻译： 音叉振荡片包括：基座; 一对摆动臂，其基本上彼此平行地延伸; 驱动压电元件，其设置在每个摆动臂的至少一个主表面或侧表面上，以通过由施加的电荷引起的压电变形来允许振荡臂的弯曲振荡; 检测压电元件设置在与设置有驱动压电元件的每个振荡臂的表面相对的表面上，以将由振荡臂的弯曲振荡引起的压电变形转换为充电并输出电荷。 驱动压电元件具有驱动压电部。 检测用压电元件具有检测压电部。 驱动压电部的压电d常数的绝对值大于检测压电部的压电d常数的绝对值。 检测用压电部的压电g常数的绝对值大于驱动压电部的压电体g的绝对值。

公开(公告)号：US07474033B2

公开(公告)日：2009-01-06

申请号：US11147220

申请日：2005-06-08

申请人： Masahiro Oshio

发明人： Masahiro Oshio

IPC分类号： H01L41/00

CPC分类号： H03H9/1071 ,  H03H3/10 ,  H03H9/02559 ,  H03H9/02614 ,  H03H9/02818 ,  H03H9/02984 ,  H03H9/14538

摘要： A surface acoustic wave device, comprising a lithium-tantalate substrate and an IDT electrode that excites a pseudo-longitudinal wave type leaky surface acoustic wave in the surface of the lithium-tantalate substrate, wherein a normalized substrate thickness t/λ, which is a thickness t of the lithium-tantalate substrate normalized by an IDT wavelength λ, is in a range of 1≦t/λ≦22.

摘要翻译： 一种声表面波装置，其特征在于，包括在所述锂钽酸盐基板的表面中激发伪纵波型泄漏表面声波的锂钽酸锂基板和IDT电极，其中，所述正电荷基板厚度t /λ为 由IDT波长λ标准化的钽酸锂底物的厚度t在1 <= t /λ<22的范围内。

公开(公告)号：US09046366B2

公开(公告)日：2015-06-02

申请号：US13404573

申请日：2012-02-24

申请人： Yoshinao Yanagisawa ,  Masahiro Oshio ,  Takayuki Kikuchi ,  Toshihiro Nishida ,  Masayuki Takahashi

发明人： Yoshinao Yanagisawa ,  Masahiro Oshio ,  Takayuki Kikuchi ,  Toshihiro Nishida ,  Masayuki Takahashi

IPC分类号： G01C19/5649 ,  G01C19/56

CPC分类号： G01C19/5649 ,  G01C19/56

摘要： A signal processing circuit includes an I/V conversion circuit (current/voltage conversion section) that converts an oscillation current of a vibrator into a voltage, an RC filter (phase shift section) that shifts a phase of the output signal of the I/V conversion circuit, a full-wave rectifier (part of a drive amplitude control section) that binarizes a signal that has been shifted in phase to generate a switch control signal, a comparator (reference signal generation section) that generates a reference signal for synchronous detection based on the output signal of the I/V conversion circuit, and an EXOR circuit (clock signal generation section) that generates a clock signal for a switched capacitor filter (SCF) that has a frequency twice a frequency of a drive signal based on a phase difference between the reference signal and the switch control signal.

摘要翻译： 信号处理电路包括将振动器的振荡电流转换为电压的I / V转换电路（电流/电压转换部），将I / V转换电路的输出信号的相位移位的RC滤波器（相移部） V转换电路，将相位偏移的信号二值化以产生开关控制信号的全波整流器（驱动幅度控制部的一部分），生成用于同步的参考信号的比较器（参考信号生成部） 基于I / V转换电路的输出信号进行检测，以及EXOR电路（时钟信号生成部），该EXOR电路生成具有基于驱动信号的频率的两倍频率的开关电容滤波器（SCF）的时钟信号 参考信号与开关控制信号之间的相位差。

公开(公告)号：US08618890B2

公开(公告)日：2013-12-31

申请号：US13404649

申请日：2012-02-24

申请人： Yoshinao Yanagisawa ,  Masahiro Oshio ,  Takayuki Kikuchi ,  Toshihiro Nishida ,  Masayuki Takahashi

发明人： Yoshinao Yanagisawa ,  Masahiro Oshio ,  Takayuki Kikuchi ,  Toshihiro Nishida ,  Masayuki Takahashi

IPC分类号： H03B5/36

CPC分类号： G01C19/574 ,  G01C19/5726

摘要： A driver circuit includes a comparator (drive signal generation section) that generates a drive signal based on a signal obtained by converting an oscillation current of a vibrator that has been input via a first signal line into a voltage using an I/V conversion circuit (current/voltage conversion section), and supplies the drive signal to the vibrator via a second signal line, an oscillation detection circuit (oscillation detection section) that detects whether or not the oscillation current has reached a predetermined value after the vibrator has started to oscillate, a startup oscillation circuit (startup oscillation section) that assists an oscillation operation of the vibrator until the oscillation current reaches the predetermined value, and a switch that separates a capacitor from the second signal line until the oscillation current reaches the predetermined value, and connects the capacitor to the second signal line when the oscillation current has reached the predetermined value.

摘要翻译： 驱动器电路包括：比较器（驱动信号生成部），其基于通过使用I / V转换电路将已经经由第一信号线输入的振动器的振荡电流转换为电压而获得的信号，生成驱动信号（ 电流/电压转换部），并且经由第二信号线向振动器提供驱动信号，振荡器开始振荡后检测振荡电流是否已经达到预定值的振荡检测电路（振荡检测部） 启动振荡电路（启动振荡部），其在振荡电流达到规定值之前辅助振动器的振荡动作，以及将电容器与第二信号线分离直到振荡电流达到规定值为止的开关， 当振荡电流达到预定值时，电容器到第二信号线 呃

公开(公告)号：US08453503B2

公开(公告)日：2013-06-04

申请号：US12964016

申请日：2010-12-09

申请人： Masahiro Oshio

发明人： Masahiro Oshio

IPC分类号： G01C19/56

CPC分类号： G01C19/5642

摘要： A resonator element includes: drive beams including a first beam and a second beam that vibrate in torsional vibration modes and are elongated side by side in a first direction; support parts that couple one ends and the other ends of the first beam and the second beam; and detection arms elongated from the respective first beam and second beam in a second direction orthogonal to the first direction in a plan view, wherein, in a drive mode, the first beam and the second beam torsionally vibrate in opposite directions to each other, the respective detection arms vibrate in a normal direction of a plane containing the first direction and the second direction, and the detection arm elongated from the first beam and the detection arm elongated from the second beam vibrate in the same direction as each other.

摘要翻译： 谐振元件包括：驱动梁，包括第一梁和第二梁，其以扭转振动模式振动并且在第一方向上并排拉长; 支撑部件，其将第一梁和第二梁的一端和另一端相连; 以及在平面图中沿与第一方向正交的第二方向从相应的第一光束和第二光束伸长的检测臂，其中，在驱动模式中，第一光束和第二光束彼此相反的方向扭转振动， 各个检测臂沿着包含第一方向和第二方向的平面的法线方向振动，并且从第一光束伸长的检测臂和从第二光束伸长的检测臂在彼此相同的方向上振动。