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1. 发明授权

US12019830B2 Band pass filter and sensor device including the same 有权
公开(公告)号：US12019830B2
公开(公告)日：2024-06-25
申请号：US17992173
申请日：2022-11-22
申请人： SAMSUNG DISPLAY CO., LTD.
发明人： Moon Jae Jeong
IPC分类号： G06F3/044 , H03H11/12 , H03H19/00 , H04B1/10
CPC分类号： G06F3/044 , H03H11/126 , H03H19/004 , H04B1/10
摘要： A sensor device includes: first sensors; second sensors which form capacitances with the first sensors; a sensor transmitter connected to the first sensors, where the sensor transmitter supplies driving signals to the first sensors; and a sensor receiver connected to the second sensors, where the sensor receiver receives sensing signals from the second sensors, and the sensor receiver includes a band pass filter which filters the sensing signals. The band pass filter includes: a first integrator including a first amplifier; a first high pass filter converter connected to a first input terminal, a second input terminal and a first output terminal of the first amplifier, where the first high pass filter converter time-divisionally provides N high pass filter conversion paths; and a first gain auxiliary component connected to the first input terminal and the first output terminal of the first amplifier while the first integrator performs an integral function.

2. 发明公开

US20240162887A1 DIVIDED ACTIVE ELECTROMAGNETIC INTERFERENCE FILTER MODULE AND MANUFACTURING METHOD THEREOF 审中-公开
公开(公告)号：US20240162887A1
公开(公告)日：2024-05-16
申请号：US18423375
申请日：2024-01-26
申请人： EM CORETECH INC. , UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
发明人： Jin Gook KIM , Sang Yeong Jeong
IPC分类号： H03H11/04 , H03H1/00 , H03H11/12
CPC分类号： H03H11/04 , H03H1/0007 , H03H11/126 , H05K1/14 , H05K2201/1006
摘要： This application relates to an independent active electromagnetic interference filter module. In one aspect, the filter module includes a first element group including a noise sensing unit provided to sense electromagnetic noise, and a second element group including a compensating unit provided to generate a compensation signal for the electromagnetic noise. The first group and the second group may be respectively mounted on different substrates. According to some embodiments, the filter module can reduce a volume of each element constituting an electromagnetic interference filter module, implement a single modularization of a compact structure. The filter module can also improve electromagnetic interference noise reduction performance and a manufacturing method thereof.

3. 发明授权

US11885647B2 Accelerometer apparatuses and systems for noise rejection 有权
公开(公告)号：US11885647B2
公开(公告)日：2024-01-30
申请号：US17591086
申请日：2022-02-02
申请人： Kionix, Inc.
发明人： Jonah Dewall
IPC分类号： G01D18/00 , H03H11/12 , H03F3/45 , G01R29/26
CPC分类号： G01D18/00 , G01R29/26 , H03F3/45475 , H03H11/126
摘要： A sensor apparatus includes a resonator, a transducer, a damping resistor, a first switch, a filter stage, a second switch, and a noise rejection stage. The transducer is configured to detect a position of the resonator. The damping resistor is configured to electrostatically actuate the transducer and convert a thermomechanical noise of the resonator to an electromechanical noise. The first switch is configured to receive a first signal from the transducer. The filter stage is configured to receive the first signal and adjust a phase and a gain of the first signal and output a filtered first signal. The second switch is configured to receive a second signal from the transducer. The noise rejection stage is configured to receive the filtered first signal and the second signal and reduce the filtered first signal from an output signal.

4. 发明公开

US20230421134A1 EMI ACTIVE FILTER 审中-公开
公开(公告)号：US20230421134A1
公开(公告)日：2023-12-28
申请号：US18215081
申请日：2023-06-27
申请人： Goodrich Control Systems
发明人： Tania Cuesta Cano , Ignacio Castro Álvarez , Grzegorz Popek
IPC分类号： H03H11/12 , H02M1/44
CPC分类号： H03H11/126 , H02M1/44
摘要： An active electromagnetic interference filter comprising an adjustable shunt impedance circuit, the adjustable shunt impedance circuit comprising a noise sensing branch that senses input noise and provides a noise voltage representative of the sensed noise, and an operational amplifier stage configured to generate, at an injection branch, an injection current based on the noise voltage.

5. 发明授权

US10063252B2 Continuous delta-sigma modulator for supporting multi-mode 有权
公开(公告)号：US10063252B2
公开(公告)日：2018-08-28
申请号：US15868786
申请日：2018-01-11
申请人： Electronics and Telecommunications Research Institute
发明人： Young Kyun Cho , Bong Hyuk Park
IPC分类号： H03M3/00 , H03H11/12
CPC分类号： H03M3/438 , H03H11/1204 , H03H11/126 , H03H11/1291 , H03M3/394 , H03M3/422 , H03M3/458
摘要： A delta-sigma modulator may comprise a loop filter for integrating and outputting a difference between an input signal and an analog signal; a quantizer for quantizing and outputting a signal output from the loop filter; and a digital-to-analog converter (DAC) for outputting the analog signal by digital-to-analog converting a signal output from the quantizer. Also, the loop filter may comprise an operational amplifier; and a circuit including at least one capacitor, at least one resistor, and at least one switch which are connected to the operational amplifier. Also, signal transfer characteristics of the loop filter satisfy a third-order transfer function or a second-order transfer function by turning on or off the at least one switch.

6. 发明申请

US20180026621A1 CORRELATED ELECTRON SWITCH 审中-公开
公开(公告)号：US20180026621A1
公开(公告)日：2018-01-25
申请号：US15659288
申请日：2017-07-25
申请人： ARM Ltd.
发明人： Lucian Shifren
IPC分类号： H03K17/041 , H03K19/20 , G11C13/00
CPC分类号： H03K17/041 , G11C13/0007 , G11C13/003 , G11C13/004 , G11C13/0069 , G11C13/0097 , G11C2013/009 , G11C2213/74 , G11C2213/79 , H01L45/04 , H01L45/146 , H01L45/147 , H03H11/126 , H03H11/1291 , H03K17/567 , H03K19/20
摘要： Subject matter disclosed herein may relate to correlated electron switches.

7. 发明授权

US09829904B2 Low-pass filter circuit and power supply device 有权
公开(公告)号：US09829904B2
公开(公告)日：2017-11-28
申请号：US15013271
申请日：2016-02-02
申请人： SII Semiconductor Corporation
发明人： Kaoru Sakaguchi
IPC分类号： G05F3/02 , H03H11/12
CPC分类号： G05F3/02 , H03H11/126
摘要： To provide a low-pass filter circuit which is high in noise elimination capability and starts its output stably and at high speed, and a power supply device. A low-pass filter circuit is provided which is equipped with a capacitance element connected to an output terminal, and a resistance circuit connected between an input terminal and the output terminal, and in which the resistance circuit is equipped with a first MOS transistor connected between the input terminal and the output terminal, and an amplifier which has a first input terminal to which the input terminal is connected, a second input terminal to which the output terminal is connected, and an output terminal to which a gate of the first MOS transistor is connected, and which controls a time constant of the low-pass filter circuit.

8. 发明授权

US09356618B2 Second order loop filter and multi-order delta sigma modulator including the same 有权
标题翻译：二阶环路滤波器和包括其的多阶三角Σ调制器
公开(公告)号：US09356618B2
公开(公告)日：2016-05-31
申请号：US14617705
申请日：2015-02-09
申请人： Electronics and Telecommunications Research Institute
发明人： Young Kyun Cho , Jae Ho Jung , Kwangchun Lee
IPC分类号： H03M3/00 , H03H11/12 , H03H11/32
CPC分类号： H03M3/43 , H03H11/1247 , H03H11/126 , H03H11/1291 , H03H11/32 , H03M3/38 , H03M3/422 , H03M3/454 , H03M3/458
摘要： Provided is a second order loop filter (LF). The second order LF includes: an operational amplifier including a first input, a second input receiving a differential input of the first input, and an output; an inverter inverting a signal output from the output of the operational amplifier to output an inverted signal; a first resistor connected to between the first input and a first node; a second resistor connected to between the output of the operational amplifier and the first node; a third resistor connected to between the first input and an input signal; a first capacitor connected to between the second input and the first node; a second capacitor connected to between the output of the operational amplifier and an output of the inverter; and a third capacitor connected to between the output and the first input of the operational amplifier, wherein the second input is connected to a ground voltage.
摘要翻译：提供了二阶环路滤波器（LF）。第二级LF包括：运算放大器，包括第一输入端，接收第一输入端的差分输入端的第二输入端和输出端; 逆变器，反相从运算放大器的输出端输出的信号，输出反相信号; 连接到第一输入和第一节点之间的第一电阻器; 连接到运算放大器的输出端和第一节点之间的第二电阻器; 连接到所述第一输入端和输入信号之间的第三电阻器; 连接到所述第二输入端和所述第一节点之间的第一电容器; 连接在运算放大器的输出端和反相器的输出端之间的第二电容器; 以及连接到所述运算放大器的输出和第一输入之间的第三电容器，其中所述第二输入端连接到接地电压。

9. 发明授权

US09172354B2 Analog active low-pass filters 有权
标题翻译：模拟有源低通滤波器
公开(公告)号：US09172354B2
公开(公告)日：2015-10-27
申请号：US14084351
申请日：2013-11-19
申请人： ANALOG DEVICES, INC.
发明人： Alexandru Ciubotaru
IPC分类号： H03K5/00 , H03H11/04 , H03H11/12
CPC分类号： H03H11/0405 , H03H11/126 , H03H2011/0477
摘要： Apparatus and methods for high-frequency low-pass filtering are disclosed. A first resistor is operatively coupled between a first node and a second node. A second resistor is operatively coupled between the second node and a third node. An amplifier circuit has a first input operatively coupled to the third node and a first output operatively coupled to a fourth node. The first output is configured to provide a first output signal. A first complex impedance network is operatively coupled between the fourth node and the third node. A first feedback path is operatively coupled between the fourth node and the second node. The first feedback path is configured to invert at least a portion of the first output signal. The first feedback path is further configured to provide a first feedback capacitance at the second node.
摘要翻译：公开了用于高频低通滤波的装置和方法。第一电阻器可操作地耦合在第一节点和第二节点之间。第二电阻器可操作地耦合在第二节点和第三节点之间。放大器电路具有可操作地耦合到第三节点的第一输入和可操作地耦合到第四节点的第一输出。第一输出被配置为提供第一输出信号。第一复阻抗网络可操作地耦合在第四节点和第三节点之间。第一反馈路径可操作地耦合在第四节点和第二节点之间。第一反馈路径被配置为反转第一输出信号的至少一部分。第一反馈路径被进一步配置为在第二节点处提供第一反馈电容。

10. 发明申请

US20150137882A1 ANALOG ACTIVE LOW-PASS FILTERS 有权
标题翻译：模拟主动低通滤波器
公开(公告)号：US20150137882A1
公开(公告)日：2015-05-21
申请号：US14084351
申请日：2013-11-19
申请人： ANALOG DEVICES, INC.
发明人： Alexandru Ciubotaru
IPC分类号： H03H11/04
CPC分类号： H03H11/0405 , H03H11/126 , H03H2011/0477
摘要： Apparatus and methods for high-frequency low-pass filtering are disclosed. A first resistor is operatively coupled between a first node and a second node. A second resistor is operatively coupled between the second node and a third node. An amplifier circuit has a first input operatively coupled to the third node and a first output operatively coupled to a fourth node. The first output is configured to provide a first output signal. A first complex impedance network is operatively coupled between the fourth node and the third node. A first feedback path is operatively coupled between the fourth node and the second node. The first feedback path is configured to invert at least a portion of the first output signal. The first feedback path is further configured to provide a first feedback capacitance at the second node.
摘要翻译：公开了用于高频低通滤波的装置和方法。第一电阻器可操作地耦合在第一节点和第二节点之间。第二电阻器可操作地耦合在第二节点和第三节点之间。放大器电路具有可操作地耦合到第三节点的第一输入和可操作地耦合到第四节点的第一输出。第一输出被配置为提供第一输出信号。第一复阻抗网络可操作地耦合在第四节点和第三节点之间。第一反馈路径可操作地耦合在第四节点和第二节点之间。第一反馈路径被配置为反转第一输出信号的至少一部分。第一反馈路径被进一步配置为在第二节点处提供第一反馈电容。

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