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公开(公告)号：US11188171B2
公开(公告)日：2021-11-30
申请号：US16784176
申请日：2020-02-06
Applicant: NOVATEK Microelectronics Corp.
Inventor： Keko-Chun Liang , Yi-Yang Tsai , Jin-Yi Lin , Chun-Wei Kang , Yi-Chuan Liu
IPC: G06F3/041
Abstract: A driving system for a touch display device includes a timing controller, configured to output a plurality of first data and receive a plurality of second data; and a driving module, coupled to the timing controller, comprises a display driving module, configured to output a plurality of output voltages according to the plurality of first data output by the timing controller; and a sensing module, configured to receive a plurality of display sensing data and a plurality of touch sensing data to generate the plurality of second data to the timing controller.
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公开(公告)号：US10771016B2
公开(公告)日：2020-09-08
申请号：US16249911
申请日：2019-01-17
Applicant: Novatek Microelectronics Corp.
Inventor： Chia-Wei Su , Ju-Lin Huang , Keko-Chun Liang
Abstract: An amplifier circuit including an input amplifier, an output amplifier and a diode device is provided. The output amplifier is coupled to the input amplifier and outputs an output voltage. The diode device is coupled between an output end and an input end of the output amplifier. When a voltage difference between the output end and the input end of the output amplifier is greater than a barrier voltage of the diode device, the diode device is turned on, and an overshoot of the output voltage is reduced.
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公开(公告)号：USRE47432E1
公开(公告)日：2019-06-11
申请号：US15186555
申请日：2016-06-20
Applicant: NOVATEK Microelectronics Corp.
Inventor： Ju-Lin Huang , Keko-Chun Liang , Chun-Yung Cho , Cheng-Hung Chen
Abstract: An output stage circuit includes: a first transistor, including a first terminal coupled to a first node, a second terminal coupled to an output terminal, a third terminal coupled to an input terminal for receiving an input voltage, and a fourth terminal coupled to a first power terminal for receiving a first voltage; a second transistor, including a first terminal coupled to a second node, a second terminal coupled to the output terminal, a third terminal coupled to the input terminal for receiving the input voltage, and a fourth terminal coupled to ground; and a current source, coupled to the output terminal for providing a constant current.
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公开(公告)号：US10256967B2
公开(公告)日：2019-04-09
申请号：US15863983
申请日：2018-01-08
Applicant: Novatek Microelectronics Corp.
Inventor： Chang-Cheng Huang , Shen-Iuan Liu , Ju-Lin Huang , Tzu-Chien Tzeng , Keko-Chun Liang , Yu-Hsiang Wang , Che-Wei Yeh
Abstract: A clock and data recovery circuit with jitter tolerance enhancement is provided. The CDR circuit includes: a bang-bang phase detector, a digital filter, a digitally controlled oscillator, and an adaptive loop gain control circuit. The CDR circuit detects a loop bandwidth variation and adjusts the loop bandwidth of CDR circuit by adjusting proportional path and integral path gain factors of the digital filter of the CDR circuit. The loop gain controller uses two methods to adjust the loop gain in CDR circuit: bang-bang adjusting method and linear adjusting method.
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公开(公告)号：US10230334B2
公开(公告)日：2019-03-12
申请号：US15792774
申请日：2017-10-25
Applicant: Novatek Microelectronics Corp.
Inventor： Chia-Wei Su , Ju-Lin Huang , Keko-Chun Liang
Abstract: An amplifier circuit including an input amplifier, an output amplifier and a diode device is provided. The output amplifier is coupled to the input amplifier and outputting an output voltage. The diode device is coupled between an output end and an input end of the output amplifier. When a voltage difference between the output end and the input end of the output amplifier is greater than a barrier voltage of the diode device, the diode device is turned on, and an overshoot of the output voltage is reduced. The diode device includes a variable resistor to increase the barrier voltage of the diode device.
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Patent Agency Ranking
公开(公告)号：US09837967B2
公开(公告)日：2017-12-05
申请号：US14751152
申请日：2015-06-26
Applicant: Novatek Microelectronics Corp.
Inventor： Chia-Wei Su , Ju-Lin Huang , Keko-Chun Liang
CPC classification number: H03F1/083 , H03F1/52 , H03F1/523 , H03F3/303 , H03F3/45475 , H03F2200/129 , H03F2200/153 , H03F2200/444 , H03F2203/30036 , H03F2203/45218 , H03F2203/45654 , H03F2203/45658 , H03F2203/45686 , H03F2203/45702
Abstract: An amplifier circuit with an overshoot suppress scheme is provided. The amplifier circuit includes an input amplifier, an output amplifier and a diode device. The output amplifier is coupled to the input amplifier and outputs an output voltage. The diode device is coupled between an output end and an input end of the output amplifier. When a voltage difference between the output end and the input end of the output amplifier is greater than a barrier voltage of the diode device, the diode device is turned on, and an overshoot of the output voltage is reduced.
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公开(公告)号：US08917121B2
公开(公告)日：2014-12-23
申请号：US13717648
申请日：2012-12-17
Applicant: NOVATEK Microelectronics Corp.
Inventor： Ju-Lin Huang , Keko-Chun Liang , Chun-Yung Cho , Cheng-Hung Chen
Abstract: An output stage circuit includes: a first transistor, including a first terminal coupled to a first node, a second terminal coupled to an output terminal, a third terminal coupled to an input terminal for receiving an input voltage, and a fourth terminal coupled to a first power terminal for receiving a first voltage; a second transistor, including a first terminal coupled to a second node, a second terminal coupled to the output terminal, a third terminal coupled to the input terminal for receiving the input voltage, and a fourth terminal coupled to ground; and a current source, coupled to the output terminal for providing a constant current.
Abstract translation: 输出级电路包括：第一晶体管，包括耦合到第一节点的第一端子，耦合到输出端子的第二端子，耦合到用于接收输入电压的输入端子的第三端子，以及耦合到第一端子的第四端子 用于接收第一电压的第一电源端子; 第二晶体管，包括耦合到第二节点的第一端子，耦合到输出端子的第二端子，耦合到输入端子用于接收输入电压的第三端子和耦合到地的第四端子; 以及耦合到输出端子以提供恒定电流的电流源。
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公开(公告)号：US20140368271A1
公开(公告)日：2014-12-18
申请号：US14474315
申请日：2014-09-02
Applicant: Novatek Microelectronics Corp.
Inventor： Chia-Wei Su , Ju-Lin Huang , Keko-Chun Liang
CPC classification number: H03F3/211 , H03F1/52 , H03F1/523 , H03F3/265 , H03F3/303 , H03F3/45 , H03F3/45071 , H03F3/45475 , H03F2200/444 , H03F2203/21178 , H03F2203/45218
Abstract: An amplifier circuit with overshoot suppress scheme including an input amplifier, an output amplifier, and a diode is provided. A first and a second input ends of the output amplifier are coupled to an output of the input amplifier. The diode is coupled between an output end and the first input end of the output amplifier. When the voltage difference between the output and the input ends of the output amplifier is greater then the barrier voltage of the diode, the diode is turned on, so that the output end of the output amplifier is coupled to the input end of the output amplifier. In the transient state, it rapidly smoothes the overshoot signal. In the steady state, the diode is cut off to maintain the normal operation of the operational amplifier.
Abstract translation: 提供了具有输入放大器，输出放大器和二极管的具有过冲抑制方案的放大器电路。 输出放大器的第一和第二输入端耦合到输入放大器的输出端。 二极管耦合在输出端和输出放大器的第一输入端之间。 当输出放大器的输出端和输入端之间的电压差大于二极管的势垒电压时，二极管导通，使得输出放大器的输出端耦合到输出放大器的输入端 。 在瞬态状态下，它会快速平滑过冲信号。 在稳定状态下，二极管被切断以保持运算放大器的正常工作。
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公开(公告)号：US11854471B2
公开(公告)日：2023-12-26
申请号：US18075179
申请日：2022-12-05
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Hsu-Chih Wei , Po-Hsiang Fang , Keko-Chun Liang , Che-Wei Yeh , Ju-Lin Huang
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2330/023 , G09G2370/00
Abstract: The present disclosure provides a method for a display driver system and a display driver system. The method comprises: the control circuit transmitting a global signal and a first signal for a LED driver circuit in each stage to a first-stage LED driver circuit, wherein the global signal includes an command for indicating an operation mode of the LED driver circuit in each stage; the LED driver circuit in each stage determining the operation mode corresponding to the command according to the global signal, identifying a corresponding first signal of the LED driver circuit in the stage, and operating according to the determined operation mode and the corresponding first signal; and the LED driver circuit in each stage except for last stage transmitting the global signal to the LED driver circuit in its next stage, and in response to a completion of operation according to the determined operation mode and the corresponding first signal, transmitting the first signal for the LED driver circuit in each of sequential stages to the LED driver circuit in its next stage.
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公开(公告)号：US11482293B2
公开(公告)日：2022-10-25
申请号：US17363020
申请日：2021-06-30
Applicant: NOVATEK Microelectronics Corp.
Inventor： Che-Wei Yeh , Keko-Chun Liang , Yu-Hsiang Wang , Yong-Ren Fang , Yi-Chuan Liu , Yi-Yang Tsai , Po-Hsiang Fang
Abstract: A control system includes a plurality of driving circuits coupled in series, which includes a first driving circuit and a second driving circuit. The first driving circuit includes a first receiver, a first transmitter and a replica receiver. The first transmitter is coupled to the first receiver, and the replica receiver is coupled to an output terminal of the first transmitter. The second driving circuit, coupled to the first driving circuit, includes a second receiver and a second transmitter. The second receiver is coupled to the first transmitter, and the second transmitter is coupled to the second receiver.
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