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公开(公告)号：US20190190448A1
公开(公告)日：2019-06-20
申请号：US16219995
申请日：2018-12-14
发明人： Hideo HANEDA , Akio TSUTSUMI
摘要： A circuit device includes a drive circuit driving a resonator, an oscillation circuit having the resonator and a variable capacitance circuit coupled to an oscillation loop including the drive circuit, and a D/A converter circuit that performs D/A conversion on frequency control data and outputs a first voltage signal and a second voltage signal which are differential signals. The variable capacitance circuit includes a first variable capacitance capacitor, to one end of which the first voltage signal is input and, to the other end of which a first bias voltage is input and a second variable capacitance capacitor, to one end of which the second voltage signal is input and, to the other end of which a second bias voltage is input.
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公开(公告)号：US20190033431A1
公开(公告)日：2019-01-31
申请号：US16045899
申请日：2018-07-26
发明人： Hideo HANEDA , Akio TSUTSUMI
摘要： A circuit device includes an analog front-end circuit that receives a target signal is input, and a processing circuit that performs arithmetic processing based on an output signal from the analog front-end circuit. The analog front-end circuit includes a plurality of comparator circuits that compare the voltage level of the target signal to a plurality of threshold voltages and output a plurality of comparison result signals. The processing circuit obtains the transition timing of the target signal based on the comparison result signals and delayed-time information of the analog front-end circuit.
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3.发明申请SIGNAL PROCESSING DEVICE, DETECTION DEVICE, SENSOR, ELECTRONIC APPARATUS AND MOVING OBJECT 审中-公开信号处理装置，检测装置，传感器，电子装置和移动对象公开(公告)号：US20150168467A1
公开(公告)日：2015-06-18
申请号：US14567404
申请日：2014-12-11
发明人： Hideo HANEDA
IPC分类号： G01R23/165 , G01R29/26
CPC分类号： G01R23/165 , G01C21/16 , G01C21/165 , G01R29/26
摘要： A signal processing device includes a Kalman filter that extracts a DC component of an input signal by performing Kalman filter processing on the basis of observation noise and system noise which are estimated from the input signal.
摘要翻译： 信号处理装置包括卡尔曼滤波器，其通过基于从输入信号估计的观测噪声和系统噪声进行卡尔曼滤波处理来提取输入信号的直流分量。
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公开(公告)号：US20220247352A1
公开(公告)日：2022-08-04
申请号：US17587127
申请日：2022-01-28
发明人： Yuichi TORIUMI , Hideo HANEDA , Teppei HIGUCHI , Atsushi TANAKA
摘要： A circuit device includes an oscillation circuit and a processing circuit that generates capacitance control data. The oscillation circuit includes a variable capacitance circuit whose capacitance value is variably controlled based on the capacitance control data, and an oscillation frequency thereof is controlled based on the capacitance value of the variable capacitance circuit. The variable capacitance circuit includes a capacitor array. The capacitor array includes a plurality of capacitors each having a binary-weighted capacitance value, and a plurality of switches that are on-off controlled based on the capacitance control data. The processing circuit outputs the capacitance control data, which is subjected to dithering, so as to switch the capacitance value of the variable capacitance circuit between a first capacitance value and a second capacitance value in a time division manner.
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5.发明申请公开(公告)号：US20220004220A1
公开(公告)日：2022-01-06
申请号：US17126521
申请日：2020-12-18
发明人： Hisahiro ITO , Hideo HANEDA , Yasuhiro SUDO , Akio TSUTSUMI
摘要： A circuit device is used in an electronic device including a receiver, a control circuit that performs processing on reception data received by the receiver using a clock signal, a transmitter that transmits transmission data generated by performing processing based on the reception data by the control circuit. The circuit device includes a time-to-digital conversion circuit that measures a time difference between a transition timing of a start signal based on the reception data and a transition timing of a stop signal based on the transmission data or the clock signal, and an output interface that outputs, to the control circuit, a measurement result of the time difference of the time-to-digital conversion circuit.
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公开(公告)号：US20200240785A1
公开(公告)日：2020-07-30
申请号：US16751584
申请日：2020-01-24
发明人： Hideyuki YAMADA , Hideo HANEDA
IPC分类号： G01C19/5776
摘要： A physical quantity detection circuit includes a passive filter that receives a first analog signal based on an output signal of a physical quantity detection element, an analog/digital conversion circuit, and a precharge circuit that includes an operational amplifier, a first chopper circuit provided between the passive filter and the operational amplifier, and a second chopper circuit provided between the operational amplifier and the input capacitance of the analog/digital conversion circuit and precharges an input capacitance of the analog/digital conversion circuit, the first and the second chopper circuits perform a chopping operation in synchronization with an operation that the analog/digital conversion circuit samples the second analog signal at the input capacitance, based on an output signal of the passive filter.
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公开(公告)号：US20190238138A1
公开(公告)日：2019-08-01
申请号：US16257492
申请日：2019-01-25
发明人： Yasuhiro SUDO , Hideo HANEDA
摘要： An integrated circuit device includes a digital signal processing circuit that generates frequency control data by performing a temperature compensation process by a neural network calculation process based on temperature detection data and an amount of change in time of the temperature detection data, and an oscillation signal generation circuit that generates an oscillation signal of a frequency set by the frequency control data using a resonator.
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公开(公告)号：US20190132515A1
公开(公告)日：2019-05-02
申请号：US16174750
申请日：2018-10-30
发明人： Hideo HANEDA , Katsuhiko MAKI
IPC分类号： H04N5/232 , G01C19/5776 , G01P3/22
摘要： A gyro sensor apparatus includes a sensor device that outputs a detection signal, a control circuit including an angular velocity detection circuit that detects angular velocity based on the detection signal, an angle calculation circuit that calculates an angle based on the angular velocity, and an actuator drive signal generation circuit that generates an actuator drive signal based on the angle, a base body that supports the sensor device and the control circuit, and an output terminal that is provided as part of the base body and outputs the actuator drive signal or a signal based thereon.
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9.发明申请公开(公告)号：US20190064748A1
公开(公告)日：2019-02-28
申请号：US16111292
申请日：2018-08-24
发明人： Hideo HANEDA
摘要： A time-to-digital converter includes first and second oscillation circuits, first and second sampling circuits, and a processing circuit. The first and second oscillation circuits start an oscillation operation in accordance with first and second signals and output first and second clock signals, respectively. The first and second sampling circuits perform sampling of the first and second clock signals by a first reference clock signal and output first and second output signals, respectively. The processing circuit obtains first frequency information and first phase information of the first clock signal and second frequency information and second phase information of the second clock signal based on the first and second output signals of the first and second sampling circuits, and obtains a digital value corresponding to a time difference of a transition timing between the first and second signals.
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10.发明申请公开(公告)号：US20180283912A1
公开(公告)日：2018-10-04
申请号：US15926317
申请日：2018-03-20
发明人： Hideo HANEDA
IPC分类号： G01D18/00 , G01C19/5776 , H03H17/02 , G01D15/24
摘要： A signal processing device includes a Kalman filter that performs Kalman filter processing based on an observation noise and a system noise and outputs a DC component of an input signal as an estimated value; and a monitoring circuit. The Kalman filter outputs an error covariance of the estimated value. The monitoring circuit performs a stop command of observation update processing in the Kalman filter, based on a result of determination processing based on the error covariance, with respect to a signal level corresponding to the input signal.
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