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    PHYSICAL QUANTITY DETECTING CIRCUIT, PHYSICAL QUANTITY DETECTION DEVICE, PHYSICAL QUANTITY MEASUREMENT SYSTEM, ELECTRONIC APPARATUS, MOVING OBJECT, AND PHYSICAL QUANTITY MEASUREMENT DATA GENERATION METHOD
    2.
    发明申请
    PHYSICAL QUANTITY DETECTING CIRCUIT, PHYSICAL QUANTITY DETECTION DEVICE, PHYSICAL QUANTITY MEASUREMENT SYSTEM, ELECTRONIC APPARATUS, MOVING OBJECT, AND PHYSICAL QUANTITY MEASUREMENT DATA GENERATION METHOD 审中-公开
    物理量检测电路，物理量检测装置，物理量测量系统，电子设备，移动对象和物理量测量数据生成方法

    公开(公告)号：US20150301074A1

    公开(公告)日：2015-10-22

    申请号：US14684643

    申请日：2015-04-13

    Applicant: Seiko Epson Corporation

    Inventor： Takemi YONEZAWA ,  Toshiyuki NOZAWA

    IPC: G01P15/02

    CPC classification number: G01P15/18 ,  G01P15/125

    Abstract: A physical quantity detecting circuit includes a detection signal generation section adapted to generate a detection signal corresponding to a physical quantity at a first rate based on an output signal of an inertial sensor, an arithmetic processing section adapted to perform arithmetic processing based on the detection signal, a measurement data holding section adapted to hold measurement data based on the detection signal, and a measurement completion flag generation section adapted to generate and then output a measurement completion flag at a second rate lower than the first rate.

    Abstract translation: 物理量检测电路包括检测信号生成部，其适于基于惯性传感器的输出信号生成与第一速率的物理量对应的检测信号，运算处理部，其适于基于检测信号进行运算处理 测量数据保持部分，适于基于检测信号保持测量数据;以及测量完成标志产生部分，其适于以低于第一速率的第二速率生成并输出测量完成标志。

    PHYSICAL QUANTITY DETECTING SENSOR, ELECTRONIC APPARATUS, MOVING OBJECT, AND ELECTRONIC CIRCUIT
    4.
    发明申请
    PHYSICAL QUANTITY DETECTING SENSOR, ELECTRONIC APPARATUS, MOVING OBJECT, AND ELECTRONIC CIRCUIT 有权
    物理量检测传感器，电子设备，移动物体和电子电路

    公开(公告)号：US20150276853A1

    公开(公告)日：2015-10-01

    申请号：US14666870

    申请日：2015-03-24

    Applicant: Seiko Epson Corporation

    Inventor： Noriyuki MURASHIMA ,  Takemi YONEZAWA

    IPC: G01R31/28 ,  G05F1/10

    CPC classification number: G01R31/28 ,  G01P15/125 ,  G01P21/00 ,  G01P2015/0814 ,  G05F1/10 ,  Y10T307/664

    Abstract: A physical quantity detecting sensor includes a physical quantity detecting sensor element and an IC connected to the physical quantity detecting sensor element. The IC includes: a logic circuit; an analog circuit; a first regulator that supplies a logic power supply voltage generated based on a power supply voltage to the logic circuit; a second regulator that is switched to enable or disable and supplies an analog power supply voltage, which is generated based on the power supply voltage when the second regulator is set to enable, to the analog circuit; and a switch for supplying the logic power supply voltage to the analog circuit when the second regulator is set to disable.

    Abstract translation: 物理量检测传感器包括物理量检测传感器元件和连接到物理量检测传感器元件的IC。 IC包括：逻辑电路; 一个模拟电路; 第一调节器，将基于电源电压产生的逻辑电源电压提供给逻辑电路; 第二调节器，其被切换以启用或禁用并将模拟电源电压提供给所述模拟电路;所述模拟电源电压是在所述第二调节器被设置为使能时基于所述电源电压产生的; 以及用于当第二调节器被设置为禁用时将逻辑电源电压提供给模拟电路的开关。

    PHYSICAL QUANTITY SENSOR, SENSOR UNIT, ELECTRONIC APPARATUS, MOVING OBJECT, AND PHYSICAL QUANTITY DETECTION METHOD
    5.
    发明申请
    PHYSICAL QUANTITY SENSOR, SENSOR UNIT, ELECTRONIC APPARATUS, MOVING OBJECT, AND PHYSICAL QUANTITY DETECTION METHOD 审中-公开
    物理量传感器，传感器单元，电子设备，移动物体和物理量检测方法

    公开(公告)号：US20150276790A1

    公开(公告)日：2015-10-01

    申请号：US14666922

    申请日：2015-03-24

    Applicant: Seiko Epson Corporation

    Inventor： Takemi YONEZAWA ,  Noriyuki MURASHIMA

    IPC: G01P15/125 ,  G01P15/08

    CPC classification number: G01P15/125 ,  G01D5/24 ,  G01L1/144 ,  G01P15/0802 ,  G01P15/18

    Abstract: A physical quantity sensor includes a physical quantity sensor element and an IC connected to the physical quantity sensor element. The IC includes an analog power supply circuit that is switched to enable or disable, a signal processing unit to which a voltage is supplied from the analog power supply circuit and which processes a signal from the physical quantity sensor element, and a control circuit that sets the analog power supply circuit to enable within a processing period based on an external trigger and makes the signal processing unit process a physical quantity signal from the physical quantity sensor element intermittently for every processing period.

    Abstract translation: 物理量传感器包括物理量传感器元件和连接到物理量传感器元件的IC。 IC包括切换以启用或禁用的模拟电源电路，从模拟电源电路向其提供电压并且处理来自物理量传感器元件的信号的信号处理单元以及设置 所述模拟电源电路在基于外部触发的处理期间内使能，并且使所述信号处理单元在每个处理周期间歇地处理来自所述物理量传感器元件的物理量信号。

    Atomic Oscillator And Frequency Signal Generation System
    6.
    发明申请
    Atomic Oscillator And Frequency Signal Generation System 审中-公开

    公开(公告)号：US20200313683A1

    公开(公告)日：2020-10-01

    申请号：US16832427

    申请日：2020-03-27

    Applicant: Seiko Epson Corporation

    Inventor： Yukihiro HASHI ,  Kimio NAGASAKA ,  Yoshiyuki MAKI ,  Takemi YONEZAWA

    IPC: H03L7/26 ,  H03B17/00

    Abstract: An atomic oscillator includes an atom cell that includes walls defining an internal space in which alkali metal atoms are contained, a light emitting element that emits light for exciting the alkali metal atoms, and a light detecting element that detects the light transmitted through the atom cell, in which the atom cell includes a first portion in which gaseous alkali metal atoms are contained and through which light from the light emitting element passes along an x-axis, a second portion in which liquid or solid alkali metal atoms are contained, and a third portion that is positioned between the first portion and the second portion and couples the first portion and the second portion, and in the third portion, a distance between two walls facing each other along a y-axis orthogonal to the x-axis decreases from the first portion toward the second portion along the y-axis at a constant decrease rate.

    OSCILLATOR, ELECTRONIC APPARATUS, AND MOVING OBJECT
    7.
    发明申请
    OSCILLATOR, ELECTRONIC APPARATUS, AND MOVING OBJECT 有权
    振荡器，电子设备和移动对象

    公开(公告)号：US20160226497A1

    公开(公告)日：2016-08-04

    申请号：US15003122

    申请日：2016-01-21

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Takemi YONEZAWA ,  Tomohiro UNO

    IPC: H03L1/02 ,  H03B5/36

    CPC classification number: H03L1/022 ,  H03B5/04 ,  H03B5/36 ,  H03B5/362 ,  H03L1/026 ,  H03L1/04

    Abstract: An oscillator includes an oscillation element, an oscillation circuit, a heat generation element, a temperature control circuit, and a temperature correction signal generation circuit adapted to generate a temperature correction signal used to correct a frequency-temperature characteristic. The temperature correction signal generation circuit includes a temperature sensor, a first-order correction signal generation circuit adapted to generate a first-order correction signal, and a high-order correction signal generation circuit adapted to generate a high-order correction signal. The high-order correction signal generation circuit includes a high-temperature side second-order correction signal generation circuit, a high-temperature side polarity switching circuit adapted to switch a polarity of a high-temperature side second-order correction signal, a low-temperature side second-order correction signal generation circuit, and a low-temperature side polarity switching circuit adapted to switch a polarity of a low-temperature side second-order correction signal.

    Abstract translation: 振荡器包括振荡元件，振荡电路，发热元件，温度控制电路和适于产生用于校正频率 - 温度特性的温度校正信号的温度校正信号产生电路。 温度校正信号产生电路包括温度传感器，适于产生一阶校正信号的一阶校正信号产生电路和适于产生高阶校正信号的高阶校正信号产生电路。 高阶校正信号发生电路包括高温侧二阶校正信号产生电路，适于切换高温侧二阶校正信号的极性的高温侧极性切换电路， 温度侧二次校正信号生成电路，以及适于切换低温侧二次校正信号的极性的低温侧极性切换电路。

    CIRCUIT DEVICE, OSCILLATOR, ELECTRONIC APPARATUS, AND VEHICLE
    10.
    发明申请
    CIRCUIT DEVICE, OSCILLATOR, ELECTRONIC APPARATUS, AND VEHICLE 审中-公开

    公开(公告)号：US20170194907A1

    公开(公告)日：2017-07-06

    申请号：US15385455

    申请日：2016-12-20

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Takemi YONEZAWA

    IPC: H03B5/04 ,  H03B5/24 ,  H03L7/085 ,  H03B5/36

    CPC classification number: H03B5/362 ,  H03B5/368 ,  H03L1/00 ,  H03L7/18 ,  H03L7/181

    Abstract: A circuit device includes an oscillation signal generation circuit that generates an oscillation signal having an oscillation frequency using a resonator, the oscillation frequency being a frequency set by using frequency control data, and a processor configured to perform a signal process on input frequency control data based on a phase comparison result between an input signal based on the oscillation signal and a reference signal. The processor is configured to estimate a true value for an observed value of the frequency control data based on the phase comparison result through a Karman filter process in a period before a hold-over state is detected, and generate aging-corrected frequency control data, in a case where the hold-over state is detected, by holding the true value at a timing corresponding to a timing of detecting the hold-over state, and by performing a calculation based on the true value.

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