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公开(公告)号：US20220165083A1
公开(公告)日：2022-05-26
申请号：US17530381
申请日：2021-11-18
Applicant: Novatek Microelectronics Corp.
Inventor： Po-Chi Lin , Chiu-Huang Huang , Jung-Chung Lee
Abstract: A fingerprint sensing apparatus includes a plurality of fingerprint sensors and a fingerprint readout circuit. The fingerprint sensors may be configured to operate in a fingerprint sensing cycle. The fingerprint readout circuit may be coupled to the plurality of fingerprint sensors via a plurality of sensing lines. The fingerprint readout circuit may be configured to control the fingerprint sensors to operate in the fingerprint sensing cycle. The fingerprint sensing cycle includes an initialization period, an exposure period and a readout period. A voltage of a reset node in each fingerprint sensor among the fingerprint sensors is reset to a first voltage in a reset period before the fingerprint sensing cycle starts. The voltage of the reset node in each fingerprint sensor is initialized to an initial voltage in the initialization period. The initial voltage is different from the first voltage.
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12.发明申请公开(公告)号：US20210072854A1
公开(公告)日：2021-03-11
申请号：US17003978
申请日：2020-08-26
Applicant: Novatek Microelectronics Corp.
Inventor： Feng-Jung Kuo , Jung-Chung Lee , Chiu-Huang Huang , Ting-Hsuan Hung
Abstract: An electronic circuit adapted to drive a display panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a first circuit, a second circuit and a switch circuit. The first circuit is configured to generate display driving signals for driving data lines of the display panel. The second circuit is configured to receive fingerprint sensing signals corresponding to a fingerprint image from fingerprint sensing lines of the display panel. The switch circuit includes a plurality of first terminals and a plurality of second terminals. The first terminals are coupled to the first circuit and the second circuit. The second terminals are configurable to be coupled to the display panel via a plurality of first pins of the electronic circuit. Each of the first pins is configurable to be coupled to a corresponding data line and a corresponding fingerprint sensing line of the display panel.
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Patent Agency Ranking
公开(公告)号：US09971370B2
公开(公告)日：2018-05-15
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
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：US09093896B2
公开(公告)日：2015-07-28
申请号：US14536292
申请日：2014-11-07
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Min-Hung Hu , Chiu-Huang Huang , Chen-Tsung Wu
CPC classification number: H02M1/08 , H02M2001/0003 , H03F3/45183 , H03F3/45192 , H03F2203/45674
Abstract: A multi-power domain operational amplifier includes an input stage circuit, a power domain transforming circuit and an active load. The input stage circuit is configured to transform a set of input voltages into a set of input currents in a first power domain. The power domain transforming circuit is configured to transform the set of input currents into a set of output currents in a second power domain. The active load is configured to generate an output voltage according to the set of output currents. A common mode range of the output voltage is shifted as compared with a common mode range of the set of input voltages.
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公开(公告)号：US20150042297A1
公开(公告)日：2015-02-12
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
IPC: H02M1/00
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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公开(公告)号：US20140077789A1
公开(公告)日：2014-03-20
申请号：US14016132
申请日：2013-09-01
Applicant: NOVATEK Microelectronics Corp.
Inventor： Min-Hung Hu , Chiu-Huang Huang , Chen-Tsung Wu
IPC: G05F3/02
Abstract: The present invention discloses a bandgap reference circuit. The bandgap reference circuit includes an operational transconductance amplifier, and a reference generation circuit. The operational transconductance amplifier includes a self-biased operational transconductance amplifier, for utilizing an area difference between bipolar junction transistors of an input pair to generate a first positive temperature coefficient current to bias the input pair, and generating a positive temperature coefficient control voltage and a negative temperature coefficient control voltage; and a feedback voltage amplifier, for amplifying the negative temperature coefficient control voltage, and outputting a reference voltage to the input pair for feedback, to generate a first negative temperature coefficient current. The reference generation circuit generates a summation voltage or a summation current according to the positive temperature coefficient control voltage and the negative temperature coefficient control voltage.
Abstract translation: 本发明公开了一种带隙参考电路。 带隙基准电路包括一个运算跨导放大器和一个参考产生电路。 运算跨导放大器包括自偏置运算跨导放大器，用于利用输入对的双极结型晶体管之间的面积差产生第一正温度系数电流以偏置输入对，并产生正温度系数控制电压和 负温度系数控制电压; 以及反馈电压放大器，用于放大负温度系数控制电压，并将输出参考电压输出到输入对以进行反馈，以产生第一负温度系数电流。 参考产生电路根据正温度系数控制电压和负温度系数控制电压产生求和电压或求和电流。
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公开(公告)号：US20130285704A1
公开(公告)日：2013-10-31
申请号：US13678167
申请日：2012-11-15
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Chiu-Huang Huang
IPC: H03K17/30
CPC classification number: H03K17/302 , G09G3/006
Abstract: A bridge integrated circuit adapted for being coupled between a gate driver and a tester is provided. The bridge integrated circuit comprises a plurality of first detection units and a logic unit. Each first detection unit determines whether a corresponding gate driving signal satisfies a first standard according to one of the gate driving signals provided by the gate driver and accordingly generates a first detection signal according to the determination result. The logic unit is coupled to the first detection units and generates a test result signal in response to the first detection signal provided by each first detection unit. The test result signal is adapted for the tester.
Abstract translation: 提供了一种适于耦合在栅极驱动器和测试器之间的桥式集成电路。 桥式集成电路包括多个第一检测单元和逻辑单元。 每个第一检测单元根据栅极驱动器提供的栅极驱动信号中的一个来确定相应的栅极驱动信号是否满足第一标准，并且因此根据确定结果产生第一检测信号。 逻辑单元耦合到第一检测单元，并且响应于由每个第一检测单元提供的第一检测信号而产生测试结果信号。 测试结果信号适用于测试仪。
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