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    • 1. 发明专利
    • Frequency tuning method of saw device and method of manufacturing saw device
    • SAW器件的频率调谐方法及制造SAW器件的方法
    • JP2009303173A
    • 2009-12-24
    • JP2008158429
    • 2008-06-17
    • Epson Toyocom CorpSeiko Epson Corpエプソントヨコム株式会社セイコーエプソン株式会社
    • TAKADA YUTAKASAKUMA MASAYASU
    • H03H3/10
    • PROBLEM TO BE SOLVED: To provide a frequency tuning method of a SAW device which improves frequency accuracy by minimizing a voltage standing wave ratio, and to provide a method of manufacturing the SAW device.
      SOLUTION: The frequency tuning method of a SAW device is to carry out coarse frequency tuning that makes the insertion loss at the target frequency of a SAW device a predetermined value or lower, and thereafter to carry out fine frequency tuning that makes the voltage standing wave ratio at the target frequency of the SAW device minimum. The fine frequency tuning uses any one of the following: to minimize the sum of the voltage standing wave ratio measured in the input side of the SAW device and the voltage standing wave ratio measured in the output side; to minimize the voltage standing wave ratio measured in the input side; and to minimize the voltage standing wave ratio measured in the output side.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种SAW器件的频率调谐方法,其通过最小化电压驻波比来提高频率精度,并提供制造SAW器件的方法。 解决方案:SAW器件的频率调谐方法是执行使SAW器件的目标频率处的插入损耗为预定值或更低的粗略的频率调谐,然后进行精细的频率调谐,使得 在SAW器件的目标频率下的电压驻波比最小。 微调频率调谐使用以下任何一种:最小化在SAW器件的输入侧测量的电压驻波比与在输出侧测量的电压驻波比的和; 以最小化在输入侧测量的电压驻波比; 并使输出侧测得的电压驻波比最小化。 版权所有(C)2010,JPO&INPIT
    • 2. 发明专利
    • Surface acoustic wave element, and surface acoustic wave device
    • 表面声波元件和表面声波设备
    • JP2010263388A
    • 2010-11-18
    • JP2009112339
    • 2009-05-01
    • Epson Toyocom Corpエプソントヨコム株式会社
    • YAMANAKA KUNIHITOSAKUMA MASAYASU
    • H03H9/25H01L35/30H01L41/09H01L41/18H03H9/145
    • PROBLEM TO BE SOLVED: To provide a SAW element and a SAW device, capable of effectively and sufficiently performing variable control of frequency.
      SOLUTION: In the SAW element 1, an IDT 3 for exciting SAW and heater electrodes 5a, 5b are provided on the main surface of a piezoelectric substrate 2 made of quartz, and the heater electrodes are disposed on both sides of a direction orthogonal to the SAW propagation direction for the IDT. When the frequency versus temperature characteristic of the piezoelectric substrate is expressed by a quadratic curve or a cubic curve, the operation temperature range of the SAW element is set not to include an extremal value but allow the quadratic curve or cubic curve to always change in a negative direction for the rise in a temperature.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供能够有效且充分地执行频率的可变控制的SAW元件和SAW器件。 解决方案:在SAW元件1中,用于激发SAW和加热器电极5a,5b的IDT 3设置在由石英制成的压电基板2的主表面上,并且加热器电极设置在方向 与IDT的SAW传播方向正交。 当压电基板的频率对温度特性由二次曲线或三次曲线表示时,SAW元件的工作温度范围被设定为不包括极值,但允许二次曲线或三次曲线总是在 温度上升的负方向。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • Surface acoustic wave device
    • 表面声波设备
    • JP2010263431A
    • 2010-11-18
    • JP2009112939
    • 2009-05-07
    • Epson Toyocom Corpエプソントヨコム株式会社
    • YAMANAKA KUNIHITOSAKUMA MASAYASU
    • H03H9/25H01L41/09H01L41/18H01L41/187
    • PROBLEM TO BE SOLVED: To provide a SAW device capable of efficiently controlling a frequency in a larger variable range while achieving miniaturization and low profile.
      SOLUTION: The SAW device 1 includes an SAW element 3 having an IDT 5 for exciting SAW on the main surface of a piezoelectric substrate 4, a base 2 for cantilever-supporting and fixing the SAW element 3 on one end 4a in an SAW propagation direction of the piezoelectric substrate 4, and an actuator 9 for displacing a free end portion 9a in a length direction in accordance with an applied voltage. The free end portion 9a of the actuator 9 abuts on a rear surface 4c of the other end 4b on the side closer to the other end 4b than the IDT in the SAW propagation direction of the piezoelectric substrate 4 at an angle smaller than 45° with respect to the length direction of the actuator 9, and presses up the other end portion of the piezoelectric substrate to warp the substrate. The free end portion 9a of the actuator 9 displaces in the length direction based on the applied voltage while sliding on the rear surface of the piezoelectric substrate 4 to change the warpage amount of the piezoelectric substrate 4, and causes the frequency of the SAW device 1 to linearly change.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供能够在实现小型化和低轮廓的同时在更大的可变范围内有效地控制频率的SAW器件。 解决方案:SAW器件1包括具有用于在压电基板4的主表面上激发SAW的IDT 5的SAW元件3,用于将SAW元件3悬臂支撑并固定在一端4a上的基座2 压电基板4的SAW传播方向,以及用于根据施加电压沿长度方向移位自由端部9a的致动器9。 致动器9的自由端部9a与压电基板4的SAW传播方向上的IDT相比在比45度小的角度上靠近另一端4b的另一端4b的后表面4c上, 相对于致动器9的长度方向,并压迫压电基板的另一端部使基板翘曲。 致动器9的自由端部9a在压电基板4的背面滑动时基于施加的电压在长度方向上移位,以改变压电基板4的翘曲量,并且使SAW器件1的频率 线性变化。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Harmonic frequency oscillator
    • 谐波频率振荡器
    • JP2009302958A
    • 2009-12-24
    • JP2008155794
    • 2008-06-13
    • Epson Toyocom Corpエプソントヨコム株式会社
    • SAKUMA MASAYASU
    • H03B5/30
    • PROBLEM TO BE SOLVED: To provide a high-frequency oscillator in which miniaturization can be made and a high frequency can be easily obtained.
      SOLUTION: The oscillator includes a two-port SAW resonator 12 having a first port 13 and a second port 14, an amplifier 15, and a signal line formed on a substrate 16 to connect the SAW resonator 12 between an input and an output of the amplifier 15. With a feedback type oscillation circuit being formed by the SAW resonator 12, the amplifier 15 and the signal line, the oscillator further includes a composite output circuit 21 which combines a signal outputted from the first port 13 and a signal outputted from the second port 14 to output a harmonic frequency.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供可以进行小型化并且可以容易地获得高频率的高频振荡器。 解决方案:振荡器包括具有第一端口13和第二端口14的放大器15以及形成在基板16上的信号线的双端口SAW谐振器12,用于将SAW谐振器12连接到输入和输出端 输出。通过由SAW谐振器12,放大器15和信号线形成的反馈型振荡电路,振荡器还包括复合输出电路21,其组合从第一端口13输出的信号和信号 从第二端口14输出以输出谐波频率。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Voltage-controlled oscillator
    • 电压控制振荡器
    • JP2009246409A
    • 2009-10-22
    • JP2008087054
    • 2008-03-28
    • Epson Toyocom Corpエプソントヨコム株式会社
    • SAKUMA MASAYASU
    • H03B5/30
    • PROBLEM TO BE SOLVED: To provide a voltage-controlled oscillator whose frequency is finely adjusted.
      SOLUTION: The voltage-controlled oscillator includes an amplifier 12, a surface acoustic wave element 14 constituting a feedback circuit for the amplifier 12, a phase shifter 16 which is inserted into the feedback circuit to shift a phase in the feedback circuit, and an equal distributor 18 which is inserted into the feedback circuit to distribute electric power in the feedback circuit and to output outside the feedback circuit, and open stubs Sh5 and Sh6 are connected as capacitors between a hybrid coupler 16a and varicaps D1 and D2 constituting the phase shifter 16.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供频率精细调节的压控振荡器。 解决方案:压控振荡器包括放大器12,构成放大器12的反馈电路的表面声波元件14,插入到反馈电路中以移位反馈电路中的相位的移相器16, 以及相等的分配器18,其插入到反馈电路中以在反馈电路中分配电力并输出到反馈电路外部,并且开路短截线Sh5和Sh6作为电容器连接在混合耦合器16a和构成 移相器16.版权所有(C)2010,JPO&INPIT
    • 7. 发明专利
    • Sensor device and electronic apparatus
    • 传感器和电子设备
    • JP2013019745A
    • 2013-01-31
    • JP2011152731
    • 2011-07-11
    • Seiko Epson Corpセイコーエプソン株式会社
    • SAKUMA MASAYASUKOBAYASHI SACHIHIROKITAMURA SHOJIROKAYANO TAKEHITOIMAI NOBUYUKI
    • G01C19/5628G01P15/08H05K7/14
    • G01C19/5783G01P1/00G01P15/02G01P15/097G01P15/18
    • PROBLEM TO BE SOLVED: To provide a sensor device and an electronic apparatus capable of simply and accurately positioning an electronic component while achieving reduction in size.SOLUTION: A sensor device 1 includes: a mounting substrate 2 having a first rigid substrate 21 on which an angular velocity sensor 711 is mounted, and a third rigid substrate 23 on which an annular speed sensor 712 is mounted; and a pedestal 3 which fixes the mounting substrate 2. Moreover, the pedestal 3 includes: a base part 31 having a first fixing surface along an x-axis and a y-axis; and protrusions 41 to 44 which are provided on the base part 31 and have at least one of a second fixing surface along the x-axis and the y-axis and a third fixing surface along the y-axis and a z-axis. Each of rigid substrates 21, 22 and 23 is supported by the first fixing surface, the second fixing surface or the third fixing surface, and the annular speed sensors 711 and 712 have detection axes crossing to each other.
    • 要解决的问题:提供能够简单且准确地定位电子部件同时实现尺寸减小的传感器装置和电子设备。 传感器装置1包括:安装基板2,其具有安装有角速度传感器711的第一刚性基板21和安装有环形速度传感器712的第三刚性基板23; 以及固定安装基板2的台座3.此外,基座3包括:具有沿x轴和y轴的第一固定面的基部31; 以及设置在基部31上并具有沿着x轴和y轴的第二固定面和沿着y轴和z轴的第三固定面中的至少一个的突起41〜44。 每个刚性基板21,22和23由第一固定表面,第二固定表面或第三固定表面支撑,并且环形速度传感器711和712具有彼此交叉的检测轴。 版权所有(C)2013,JPO&INPIT