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    OUTPUT STAGE CIRCUIT
    22.
    发明申请
    OUTPUT STAGE CIRCUIT 有权
    输出电路

    公开(公告)号：US20130241631A1

    公开(公告)日：2013-09-19

    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

    IPC: G05F3/16

    CPC classification number: G05F3/16 ,  G05F3/205

    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。

    Control system with cascade driving circuits and related driving method
    23.
    发明申请
    Control system with cascade driving circuits and related driving method 有权

    公开(公告)号：US20230005451A1

    公开(公告)日：2023-01-05

    申请号：US17945082

    申请日：2022-09-14

    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

    IPC: G09G5/12

    Abstract: A control system includes a plurality of driving circuits coupled in series, which include a first driving circuit and a second driving circuit. The first driving circuit includes a first receiver, a first transmitter and a first flag signal selector. The first transmitter is coupled to the first receiver, and the first flag signal selector is coupled between the first receiver and the first transmitter. The second driving circuit, coupled to the first driving circuit, includes a second receiver, a second transmitter and a second flag signal selector. The second transmitter is coupled to the second receiver, and the second flag signal selector is coupled between the second receiver and the second transmitter.

    Light-emitting diode driving apparatus and light-emitting diode driver
    24.
    发明授权
    Light-emitting diode driving apparatus and light-emitting diode driver 有权

    公开(公告)号：US11545081B2

    公开(公告)日：2023-01-03

    申请号：US17721337

    申请日：2022-04-14

    Applicant: Novatek Microelectronics Corp.

    Inventor： Che-Wei Yeh ,  Keko-Chun Liang ,  Yu-Hsiang Wang ,  Yong-Ren Fang ,  Yi-Chuan Liu

    IPC: G09G3/32

    Abstract: A LED driving apparatus with clock embedded cascaded LED drivers is introduced, including: a plurality of LED drivers, wherein the first stage LED driver receives an original data signal and outputs a first data signal, the Nth stage LED driver receives a (N−1)th data signal and outputs a Nth data signal. The Nth stage LED driver includes a clock data recovery circuit generating a recovery clock signal and a recovery data signal according to the (N−1)th data signal; and a first transmitter outputting the Nth data signal according to the recovery clock signal and the recovery data signal.

    Method for display driver system and display driver system
    28.
    发明申请
    Method for display driver system and display driver system 有权

    公开(公告)号：US20210150976A1

    公开(公告)日：2021-05-20

    申请号：US16953364

    申请日：2020-11-20

    Applicant: NOVATEK Microelectronics Corp.

    Inventor： Hsu-Chih Wei ,  Po-Hsiang Fang ,  Keko-Chun Liang ,  Che-Wei Yeh ,  Ju-Lin Huang

    IPC: G09G3/32

    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.

    AMPLIFIER CIRCUIT WITH OVERSHOOT SUPPRESSION
    29.
    发明申请
    AMPLIFIER CIRCUIT WITH OVERSHOOT SUPPRESSION 审中-公开

    公开(公告)号：US20200350868A1

    公开(公告)日：2020-11-05

    申请号：US16929124

    申请日：2020-07-15

    Applicant: Novatek Microelectronics Corp.

    Inventor： Chia-Wei Su ,  Ju-Lin Huang ,  Keko-Chun Liang

    IPC: H03F1/08 ,  H03F1/52 ,  H03F3/30 ,  H03F3/45

    Abstract: An amplifier circuit including an input amplifier, an output amplifier and a diode device is provided. The output amplifier includes a PMOSFET and an NMOSFET. The PMOSFET has a gate electrode serving as a first input end and a drain coupled to an output end. The NMOSFET has a gate electrode serving as a second input end and a drain coupled to the output end. The output amplifier outputs an output voltage at the output end, and is coupled to the input amplifier via at least one of the first and second input ends. The diode device is coupled between the output end and the at least one of the first and second input ends of the output amplifier. When a voltage difference between the output end and the at least one of the first and second input ends 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.

    Operational amplifier with constant transconductance bias circuit and method using the same
    30.
    发明授权
    Operational amplifier with constant transconductance bias circuit and method using the same 有权

    公开(公告)号：US10425043B1

    公开(公告)日：2019-09-24

    申请号：US15970872

    申请日：2018-05-03

    Applicant: Novatek Microelectronics Corp.

    Inventor： Jhih-Siou Cheng ,  Keko-Chun Liang

    IPC: H03F1/30 ,  H03F3/45

    Abstract: An operational amplifier with a constant transconductance bias circuit and a method thereof are introduced. The operational amplifier includes a differential difference amplifier and the constant transconductance bias circuit. The differential difference amplifier has at least one first differential transistor pair and at least one second differential transistor pair. The constant transconductance bias circuit is electrically connected to the differential difference amplifier, and configured to output a first bias voltage to bias the at least one first differential transistor pair and output a second bias voltage to bias the at least one second differential transistor pair. The first bias voltage and the second bias voltage are configured to maintain constant transconductance of the differential difference amplifier.

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