公开(公告)号：US20200295707A1

公开(公告)日：2020-09-17

申请号：US16818743

申请日：2020-03-13

Applicant: SEIKO EPSON CORPORATION

Inventor： Yosuke ITASAKA ,  Naoki II

IPC: H03B5/02 ,  H03B5/36 ,  H03K3/356 ,  G11C16/10

Abstract: Provided is a circuit device including: a first terminal electrically coupled to one end of a vibrator; a second terminal electrically coupled to the other end of the vibrator; an oscillation circuit electrically coupled to the first terminal and the second terminal, and oscillating the vibrator; a third terminal to which an external input signal is input; a switch circuit provided between a first wiring which couples the first terminal and the oscillation circuit with each other and the third terminal, and having a P-type transistor; and a control circuit outputting a regulated voltage, in which a power supply voltage is regulated, as a substrate voltage of the P-type transistor.

公开(公告)号：US20160241190A1

公开(公告)日：2016-08-18

申请号：US15013314

申请日：2016-02-02

Applicant: SEIKO EPSON CORPORATION

Inventor： Yosuke ITASAKA ,  Noboru ITOMI

IPC: H03B5/36

CPC classification number: H03B5/364 ,  H03B5/04 ,  H03B5/36 ,  H03B5/362 ,  H03B2201/0208 ,  H03B2201/031

Abstract: An oscillation circuit includes a circuit for oscillation that oscillates a resonator, an output circuit that has a signal, output from the circuit for oscillation, input thereto to thereby output an oscillation signal, a connection terminal to which power is applied, a first wiring that connects from the connection terminal to the output circuit, and a second wiring that is connected to the first wiring through a connection node provided on the first wiring and connects from the connection node to the circuit for oscillation. The circuit for oscillation, the output circuit, the connection terminal, the first wiring, and the second wiring are provided on a semiconductor substrate. The length of a wiring extending from the connection terminal of the first wiring to the connection node is shorter than the length of the second wiring.

Abstract translation: 振荡电路包括用于振荡谐振器的振荡电路，具有从振荡电路输出的信号输出到输出振荡信号的输出电路，施加电源的连接端子，第一布线 从连接端子连接到输出电路，第二布线通过设置在第一布线上的连接节点连接到第一布线，并从连接节点连接到振荡电路。 用于振荡的电路，输出电路，连接端子，第一布线和第二布线设置在半导体基板上。 从第一布线的连接端子延伸到连接节点的布线的长度比第二布线的长度短。

公开(公告)号：US20150116044A1

公开(公告)日：2015-04-30

申请号：US14527052

申请日：2014-10-29

Applicant: Seiko Epson Corporation

Inventor： Yosuke ITASAKA ,  Masayuki ISHIKAWA ,  Takehiro YAMAMOTO ,  Akihiro FUKUZAWA

IPC: H03B5/02 ,  H03B5/32

CPC classification number: H03B5/366 ,  H03B5/362 ,  H03L1/00 ,  Y10T29/49007

Abstract: An oscillation circuit includes: an oscillation unit which includes a first terminal and a second terminal connected to a resonator, a third terminal, a fourth terminal to which at least one of a power supply potential and a signal for inspecting the resonator is applied, a first switching unit which switches modes of electrical connection between the first terminal and the third terminal, and a second switching unit which switches modes of electrical connection between the second terminal and the fourth terminal.

Abstract translation: 振荡电路包括：振荡单元，其包括连接到谐振器的第一端子和第二端子，第三端子，施加电源电位和用于检查谐振器的信号中的至少一个的第四端子， 第一开关单元，其切换第一端子和第三端子之间的电连接模式;以及第二开关单元，其切换第二端子和第四端子之间的电连接模式。

公开(公告)号：US20140091872A1

公开(公告)日：2014-04-03

申请号：US14036413

申请日：2013-09-25

Applicant: Seiko Epson Corporation

Inventor： Yosuke ITASAKA

IPC: H03L7/099

CPC classification number: H03L7/099 ,  H03B5/362 ,  H03B5/364 ,  H03B2201/0258 ,  H03J2200/10 ,  H03L1/028

Abstract: An oscillator circuit includes a terminal T1, a terminal T2, a variable capacitance element having one end connected to the terminal T1, and a capacitance value varying in accordance with a frequency control signal, a variable capacitance element having one end connected to the terminal T2, and a capacitance value varying in accordance with the frequency control signal, a load capacitance circuit connected to the terminal T1, and a load capacitance circuit connected to the terminal T2, and oscillates a resonator element at a frequency corresponding to the frequency control signal. The oscillator circuit is capable of adjusting the capacitance values of the load capacitance circuits, a reference voltage (the electrical potential of the terminal T1), and a reference voltage (the electrical potential of the terminal T2) in accordance with configuration information.

Abstract translation: 振荡器电路包括端子T1，端子T2，具有连接到端子T1的一端的可变电容元件和根据频率控制信号而变化的电容值;可变电容元件，其一端连接到端子T2 ，以及根据频率控制信号而变化的电容值，连接到端子T1的负载电容电路和连接到端子T2的负载电容电路，并且以对应于频率控制信号的频率振荡谐振元件。 振荡电路能够根据配置信息调整负载电容电路的电容值，参考电压（端子​​T1的电位）以及基准电压（端子​​T2的电位）。

公开(公告)号：US20240421767A1

公开(公告)日：2024-12-19

申请号：US18613447

申请日：2024-03-22

Applicant: SEIKO EPSON CORPORATION

Inventor： Yosuke ITASAKA ,  Takashi NOMIYA

IPC: H03B5/04 ,  H03B5/36

Abstract: A circuit device is configured to switching between a first mode in which phase noise of an output clock signal is low and a second mode in which power consumption is small, and includes an oscillation circuit configured to generate an oscillation signal, an output circuit configured to output the output clock signal, a temperature sensor configured to output a temperature detection signal, a temperature compensation circuit configured to perform temperature compensation on an oscillation frequency based on the temperature detection signal, and a control circuit. The control circuit performs control such that a power supply voltage supplied to the oscillation circuit in the first mode is higher than a power supply voltage supplied to the oscillation circuit in the second mode. In addition, the control circuit performs control such that at least one of a reference voltage supplied to the temperature compensation circuit and a reference current supplied to the temperature sensor does not change between the first mode and the second mode.

公开(公告)号：US20230208356A1

公开(公告)日：2023-06-29

申请号：US18086718

申请日：2022-12-22

Applicant: SEIKO EPSON CORPORATION

Inventor： Yosuke ITASAKA

IPC: H03B5/04 ,  H03B5/36 ,  H03H9/17 ,  H03L7/099

CPC classification number: H03B5/04 ,  H03B5/364 ,  H03H9/17 ,  H03L7/099

Abstract: An oscillator includes: a resonator; an oscillation circuit configured to oscillate the resonator; a first temperature compensation circuit configured to perform a first temperature compensation processing of temperature-compensating for a frequency of a first clock signal generated by oscillation of the resonator by the oscillation circuit; and a second temperature compensation circuit configured to receive the first clock signal subjected to the first temperature compensation processing, and to output a second clock signal subjected to a second temperature compensation processing based on the first clock signal. The first temperature compensation circuit is configured to perform a first-order first temperature compensation processing as the first temperature compensation processing. The second temperature compensation circuit is configured to perform a high-order second temperature compensation processing as the second temperature compensation processing.

公开(公告)号：US20230155548A1

公开(公告)日：2023-05-18

申请号：US17986930

申请日：2022-11-15

Applicant: SEIKO EPSON CORPORATION

Inventor： Yosuke ITASAKA ,  Takashi NOMIYA

IPC: H03B5/04 ,  H03B5/36

CPC classification number: H03B5/04 ,  H03B5/366

Abstract: A circuit device includes: an oscillation circuit configured to oscillate a resonator; a temperature compensation circuit configured to output a temperature compensation voltage for temperature compensating an oscillation frequency of the oscillation circuit, based on a temperature detection result of a temperature sensor; and a frequency control circuit configured to output a frequency control voltage for the oscillation frequency. The oscillation circuit includes a first variable capacitance circuit having a positive capacitance change characteristic with respect to a capacitance control voltage and a second variable capacitance circuit having a negative capacitance change characteristic with respect to the capacitance control voltage. The temperature compensation circuit supplies the temperature compensation voltage as the capacitance control voltage to the first variable capacitance circuit, and the frequency control circuit supplies the frequency control voltage as the capacitance control voltage to the second variable capacitance circuit.

公开(公告)号：US20180133547A1

公开(公告)日：2018-05-17

申请号：US15800292

申请日：2017-11-01

Applicant: SEIKO EPSON CORPORATION

Inventor： Yosuke ITASAKA ,  Osamu TAKAHASHI ,  Michihiro NAGAISHI ,  Hideaki YAMADA ,  Yuji KAMICHIKA

IPC: A63B24/00 ,  G06F3/01 ,  A63B69/36 ,  G04G99/00

CPC classification number: A63B24/0006 ,  A63B69/3667 ,  A63B2024/0012 ,  A63B2071/0666 ,  G04G21/025 ,  G04G99/006 ,  G06F1/163 ,  G06F1/1694 ,  G06F3/014 ,  G06F3/015 ,  G06F2200/1637

Abstract: An action information processing device includes: a biological sensor which acquires biological information; a motion sensor which acquires action information including a first action indicating a predetermined action and a second action executed before the start of the first action; an information acquisition unit which acquires the biological information and the action information; a mental information processing unit which estimates mental state information from the biological information; an action decision unit which calculates an action of a subject from the action information and decides whether the first action is success or failure, based on a predetermined decision condition; and an action advice output information unit which outputs action advice information about the second action, based on the mental state information about the second action and a result of the decision about the first action by the action decision unit.

公开(公告)号：US20160241189A1

公开(公告)日：2016-08-18

申请号：US15013620

申请日：2016-02-02

Applicant: SEIKO EPSON CORPORATION

Inventor： Yosuke ITASAKA ,  Atsushi KIYOHARA

IPC: H03B5/36

CPC classification number: H03B5/362 ,  H03B5/04 ,  H03B5/364 ,  H03B5/366 ,  H03B5/368 ,  H03L1/023 ,  H03L1/028

Abstract: An oscillation circuit includes a circuit for oscillation, a first frequency adjustment circuit for adjusting a frequency, and a first terminal. The oscillation circuit has a first mode in which the circuit for oscillation and the first frequency adjustment circuit are electrically connected to each other and the first frequency adjustment circuit and the first terminal are not electrically connected to each other, and a second mode in which the circuit for oscillation and the first frequency adjustment circuit operate and a terminal on a side where a signal of the first frequency adjustment circuit is output and the first terminal are electrically connected to each other.

Abstract translation: 振荡电路包括用于振荡的电路，用于调节频率的第一频率调节电路和第一端子。 振荡电路具有第一模式，其中用于振荡的电路和第一频率调节电路彼此电连接，并且第一频率调节电路和第一端子彼此不电连接;第二模式，其中 振荡电路和第一频率调节电路工作，并且输出第一频率调节电路的信号的一侧的端子，并且第一端子彼此电连接。

公开(公告)号：US20150365050A1

公开(公告)日：2015-12-17

申请号：US14740444

申请日：2015-06-16

Applicant: Seiko Epson Corporation

Inventor： Atsushi KIYOHARA ,  Masayuki ISHIKAWA ,  Yosuke ITASAKA

IPC: H03B5/36

CPC classification number: H03B5/368 ,  H03B5/04 ,  H03B5/362 ,  H03B2201/031 ,  H03L1/00

Abstract: An oscillation circuit includes a circuit for oscillation and a signal adjustment circuit connected to the circuit for oscillation. An input voltage based on a direct-current voltage, a voltage value of which can be changed, is input to the circuit for oscillation and the signal adjustment circuit. The circuit for oscillation causes a vibration piece to oscillate and outputs a first oscillation signal. A frequency of the first oscillation signal is adjusted according to the voltage value output from the signal adjustment circuit.

Abstract translation: 振荡电路包括用于振荡的电路和连接到振荡电路的信号调节电路。 基于直流电压（其电压值可以改变）的输入电压被输入到用于振荡的电路和信号调节电路。 振荡电路使振动片振荡并输出第一振荡信号。 第一振荡信号的频率根据从信号调整电路输出的电压值进行调整。