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公开(公告)号：US11015914B2
公开(公告)日：2021-05-25
申请号：US16252739
申请日：2019-01-21
Applicant: Novatek Microelectronics Corp.
Inventor： Chen-Tsung Wu , Ji-Ting Chen
Abstract: A capacitive image sensing device and a capacitive image sensing method are provided. The capacitive image sensing device includes a sensor array, a first charge amplifier, a second charge amplifier, a differential amplifier and a first switching circuit. The sensor array includes a plurality of sensing electrodes and a first reference sensing electrode. An input terminal of the first charge amplifier is coupled to one of the sensing electrodes. A first input terminal of the differential amplifier is selectively coupled to an output terminal of the first charge amplifier. A second input terminal of the differential amplifier is coupled to an output terminal of the second charge amplifier. The first switching circuit is configured to selectively electrically connect and disconnect the first reference sensing electrode and the input terminal of the second charge amplifier.
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公开(公告)号：US09471075B2
公开(公告)日：2016-10-18
申请号：US14228235
申请日：2014-03-27
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Pin-Han Su , Chun-Wei Huang , Chen-Tsung Wu , Chiu-Huang Huang
Abstract: A compensation module for a voltage regulation device having a gain stage, an output stage and a miller compensation module includes a low-output-impedance non-inverting amplifier unit coupled to a gain output of the gain stage and an output-stage input of the output stage.
Abstract translation: 具有增益级，输出级和铣刀补偿模块的电压调节装置的补偿模块包括耦合到增益级的增益输出的低输出阻抗非反相放大器单元和输出级输入 输出阶段。
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公开(公告)号：US20160011615A1
公开(公告)日：2016-01-14
申请号：US14554009
申请日：2014-11-25
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Chiu-Huang Huang , Chen-Tsung Wu , Chun-Wei Huang , Pin-Han Su
IPC: G05F1/625
CPC classification number: G05F1/565
Abstract: A current source for quickly adjusting an output current includes a constant current generation module, coupled to a control node, for generating a predefined current flowing through the control node in order to determine a voltage of the control node; a capacitor, coupled to an output terminal of the current source; a current variation detection module, coupled between the control node and the capacitor, for generating a variation on the voltage of the control node via the capacitor when the output terminal of the current source receives an instant current variation; and a trans-conductance amplifier, coupled between the control node and the output terminal, for changing a magnitude of the output current of the output terminal when the variation on the voltage of the control node is generated.
Abstract translation: 用于快速调节输出电流的电流源包括耦合到控制节点的恒定电流产生模块，用于产生流过控制节点的预定电流，以便确定控制节点的电压; 电容器，耦合到电流源的输出端; 耦合在所述控制节点和所述电容器之间的电流变化检测模块，用于当所述电流源的输出端子接收瞬时电流变化时经由所述电容器产生所述控制节点的电压的变化; 以及耦合在所述控制节点和所述输出端子之间的跨导放大器，用于在产生所述控制节点的电压变化时改变所述输出端子的输出电流的幅度。
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公开(公告)号：US20230164463A1
公开(公告)日：2023-05-25
申请号：US17697898
申请日：2022-03-17
Applicant: NOVATEK Microelectronics Corp.
Inventor： Jung-Yu Tsai , Chen-Tsung Wu , Kuan-Lin Wu , Hung-Yu Yang
IPC: H04N5/3745 , H04N5/376 , H03M1/18
CPC classification number: H04N5/37455 , H04N5/3765 , H03M1/18
Abstract: An image compensation circuit for an image sensor includes a gain amplifier, a compensation control circuit, a memory and a digital-to-analog converter (DAC). The gain amplifier is used for receiving a plurality of image signals from the image sensor and amplifying the plurality of image signals. The compensation control circuit is used for generating a plurality of compensation values for the plurality of image signals. The memory, coupled to the compensation control circuit, is used for storing the plurality of compensation values. The DAC, coupled to the memory and the gain amplifier, is used for converting the plurality of compensation values into a plurality of compensation voltages, respectively, to compensate the plurality of image signals with the plurality of compensation voltages.
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公开(公告)号：US09389623B2
公开(公告)日：2016-07-12
申请号：US14135583
申请日：2013-12-20
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Pin-Han Su , Chen-Tsung Wu , Chiu-Huang Huang , Chun-Wei Huang
CPC classification number: G05F1/56
Abstract: A voltage converting device with a self-reference feature for an electronic system includes a differential current generating module, implemented in a Complementary metal-oxide-semiconductor (CMOS) processing for generating a differential current pair according to a converting voltage; and a voltage converting module, coupled to the differential current generating module, a first supply voltage and a second supply voltage of the electronic system for generating the converting voltage according to the differential current pair, the first supply voltage and the second supply voltage.
Abstract translation: 具有用于电子系统的自参考特征的电压转换装置包括：差分电流产生模块，用于根据转换电压产生差动电流对的互补金属氧化物半导体（CMOS）处理; 以及耦合到所述差分电流产生模块的电压转换模块，所述电子系统的第一电源电压和第二电源电压用于根据所述差动电流对，所述第一电源电压和所述第二电源电压产生转换电压。
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Patent Agency Ranking
公开(公告)号：US20140306676A1
公开(公告)日：2014-10-16
申请号：US14228235
申请日：2014-03-27
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Pin-Han Su , Chun-Wei Huang , Chen-Tsung Wu , Chiu-Huang Huang
IPC: G05F1/575
Abstract: A compensation module for a voltage regulation device having a gain stage, an output stage and a miller compensation module includes a low-output-impedance non-inverting amplifier unit coupled to a gain output of the gain stage and an output-stage input of the output stage.
Abstract translation: 具有增益级，输出级和铣刀补偿模块的电压调节装置的补偿模块包括耦合到增益级的增益输出的低输出阻抗非反相放大器单元和输出级输入 输出阶段。
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公开(公告)号：US20140091780A1
公开(公告)日：2014-04-03
申请号：US13928346
申请日：2013-06-26
Applicant: Novatek Microelectronics Corp.
Inventor： Min-Hung Hu , Chiu-Huang Huang , Chen-Tsung Wu , Juin-Wei Huang , Pin-Han Su
IPC: G05F1/46
Abstract: A reference voltage generator including a reference voltage generating unit is provided. The reference voltage generating unit receives a first bias voltage current and a first mirror current and generates a reference voltage. The reference voltage generating unit includes a first metal-oxide-semiconductor (MOS) transistor, a second MOS transistor, a first impedance providing element and a second impedance providing element. The first and the second MOS transistors operate in a sub-threshold region so as to generate a first gate-source voltage and a second gate-source voltage having a negative temperature coefficient. The first impedance providing element is configured to generate a first current having a positive temperature coefficient. The second impedance providing element is configured to generate a first voltage having a negative temperature coefficient at its first terminal. The reference voltage is equal to a sum of the second gate-source voltage and the first voltage.
Abstract translation: 提供了包括参考电压产生单元的参考电压发生器。 参考电压产生单元接收第一偏置电压电流和第一反射镜电流并产生参考电压。 参考电压产生单元包括第一金属氧化物半导体（MOS）晶体管，第二MOS晶体管，第一阻抗提供元件和第二阻抗提供元件。 第一和第二MOS晶体管在亚阈值区域中工作，以产生具有负温度系数的第一栅极 - 源极电压和第二栅极 - 源极电压。 第一阻抗提供元件被配置为产生具有正温度系数的第一电流。 第二阻抗提供元件被配置为在其第一端产生具有负温度系数的第一电压。 参考电压等于第二栅极 - 源极电压和第一电压的和。
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公开(公告)号：US20200232780A1
公开(公告)日：2020-07-23
申请号：US16252739
申请日：2019-01-21
Applicant: Novatek Microelectronics Corp.
Inventor： Chen-Tsung Wu , Ji-Ting Chen
Abstract: A capacitive image sensing device and a capacitive image sensing method are provided. The capacitive image sensing device includes a sensor array, a first charge amplifier, a second charge amplifier, a differential amplifier and a first switching circuit. The sensor array includes a plurality of sensing electrodes and a first reference sensing electrode. An input terminal of the first charge amplifier is coupled to one of the sensing electrodes. A first input terminal of the differential amplifier is selectively coupled to an output terminal of the first charge amplifier. A second input terminal of the differential amplifier is coupled to an output terminal of the second charge amplifier. The first switching circuit is configured to selectively electrically connect and disconnect the first reference sensing electrode and the input terminal of the second charge amplifier.
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公开(公告)号：US20170108883A1
公开(公告)日：2017-04-20
申请号：US14887287
申请日：2015-10-19
Applicant: Novatek Microelectronics Corp.
Inventor： Min-Hung Hu , Chiu-Huang Huang , Chen-Tsung Wu , Juin-Wei Huang , Pin-Han Su
IPC: G05F1/575
Abstract: A voltage regulator including a voltage amplifier, a first output-stage, an AC-pass filter, a current amplifier, a second output-stage and a gain circuit is provided. Output terminals of the first and the second output-stages jointly provide the output voltage of the voltage regulator. Two input terminals of the voltage amplifier respectively receive a reference voltage and the output voltage. An input terminal of the first output-stage is coupled to an output terminal of the voltage amplifier. Two input terminals of the current amplifier respectively receive a reference current and the AC component of the output voltage. An input terminal of the second output-stage is coupled to an output terminal of the current amplifier. An input terminal of the gain circuit is coupled to the output terminal of the voltage amplifier. An output terminal of the gain circuit is coupled to the input terminal of the second output-stage.
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公开(公告)号：US09494959B2
公开(公告)日：2016-11-15
申请号：US14554009
申请日：2014-11-25
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Chiu-Huang Huang , Chen-Tsung Wu , Chun-Wei Huang , Pin-Han Su
CPC classification number: G05F1/565
Abstract: A current source for quickly adjusting an output current includes a constant current generation module, coupled to a control node, for generating a predefined current flowing through the control node in order to determine a voltage of the control node; a capacitor, coupled to an output terminal of the current source; a current variation detection module, coupled between the control node and the capacitor, for generating a variation on the voltage of the control node via the capacitor when the output terminal of the current source receives an instant current variation; and a trans-conductance amplifier, coupled between the control node and the output terminal, for changing a magnitude of the output current of the output terminal when the variation on the voltage of the control node is generated.
Abstract translation: 用于快速调节输出电流的电流源包括耦合到控制节点的恒定电流产生模块，用于产生流过控制节点的预定电流，以便确定控制节点的电压; 电容器，耦合到电流源的输出端; 耦合在所述控制节点和所述电容器之间的电流变化检测模块，用于当所述电流源的输出端子接收瞬时电流变化时经由所述电容器产生所述控制节点的电压的变化; 以及耦合在所述控制节点和所述输出端子之间的跨导放大器，用于在产生所述控制节点的电压变化时改变所述输出端子的输出电流的幅度。
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