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公开(公告)号：US11128304B1
公开(公告)日：2021-09-21
申请号：US16879768
申请日：2020-05-21
Applicant: Novatek Microelectronics Corp.
Inventor： Yun-Sheng Yao , Shen-Iuan Liu , Yen-Long Lee , Peng-Yu Chen , Chih-Hao Huang , Yao-Hung Kuo
Abstract: A clock and data recovery device and a jitter tolerance enhancement method thereof are provided. The clock and data recovery device includes a clock and data recovery circuit and a jitter tolerance enhancement circuit. A data input terminal of the clock and data recovery circuit is suitable for receiving a data signal. The clock and data recovery circuit recovers the data signal to a clock. The jitter tolerance enhancement circuit is coupled to the data input terminal of the clock and data recovery circuit to receive the data signal. The jitter tolerance enhancement circuit detects a correlation between the data signal and the clock and correspondingly adjusts a loop gain of the clock and data recovery circuit according to the correlation.
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2.发明申请公开(公告)号：US20200380904A1
公开(公告)日：2020-12-03
申请号：US16828971
申请日：2020-03-25
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yun-Hsuan Yeh , Tai-Yin Wu , Ying-Hsiang Wang , Yao-Hung Kuo
Abstract: The present invention provides a driving circuit for a gamma voltage generator of a source driver. The gamma voltage generator includes a resistor string having a plurality of tap nodes, among which a plurality of first tap nodes are respectively connected to a plurality of first buffers. The driving circuit includes a second buffer, a digital-to-analog converter (DAC) and a control circuit. The second buffer is connected to a second tap node other than the plurality of first tap nodes among the plurality of tap nodes. The DAC is coupled to the second buffer. The control circuit, coupled to the DAC, is configured to receive a plurality of first control signals for the plurality of first buffers and calculate a second control signal for the DAC according to the plurality of first control signals.
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公开(公告)号：US10699618B2
公开(公告)日：2020-06-30
申请号：US16231418
申请日：2018-12-22
Applicant: Novatek Microelectronics Corp.
Inventor： Chih-Hao Huang , Wei-Sheng Tseng , Yao-Hung Kuo , Hao-Wei Hung
Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit includes a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit determines whether an interference event occurs to the input signal based on the input signal or the output data to obtain a determination result and determines whether to adjust the at least one operation parameter of the receiving circuit according to the determination result.
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公开(公告)号：US20190341000A1
公开(公告)日：2019-11-07
申请号：US16231414
申请日：2018-12-22
Applicant: Novatek Microelectronics Corp.
Inventor： Wei-Sheng Tseng , Hao-Wei Hung , Chih-Hao Huang , Yao-Hung Kuo
IPC: G09G5/00
Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit includes a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit is configured to adjust the at least one operation parameter of the receiving circuit from at least one normal parameter to at least one anti-interference parameter when an interference event occurs to the input signal. The anti-interference circuit is configured to maintain the at least one operation parameter of the receiving circuit at the at least one normal parameter when the interference event does not occur.
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公开(公告)号：US11081034B2
公开(公告)日：2021-08-03
申请号：US16828971
申请日：2020-03-25
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yun-Hsuan Yeh , Tai-Yin Wu , Ying-Hsiang Wang , Yao-Hung Kuo
Abstract: The present invention provides a driving circuit for a gamma voltage generator of a source driver. The gamma voltage generator includes a resistor string having a plurality of tap nodes, among which a plurality of first tap nodes are respectively connected to a plurality of first buffers. The driving circuit includes a second buffer, a digital-to-analog converter (DAC) and a control circuit. The second buffer is connected to a second tap node other than the plurality of first tap nodes among the plurality of tap nodes. The DAC is coupled to the second buffer. The control circuit, coupled to the DAC, is configured to receive a plurality of first control signals for the plurality of first buffers and calculate a second control signal for the DAC according to the plurality of first control signals.
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Patent Agency Ranking
公开(公告)号：US11145232B2
公开(公告)日：2021-10-12
申请号：US16865424
申请日：2020-05-04
Applicant: Novatek Microelectronics Corp.
Inventor： Chih-Hao Huang , Wei-Sheng Tseng , Yao-Hung Kuo , Hao-Wei Hung
Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit can include a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit can determine whether an interference event occurs to the input signal based on the input signal or the output data to obtain a determination result and determines whether to adjust the at least one operation parameter of the receiving circuit according to the determination result.
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公开(公告)号：US11024209B2
公开(公告)日：2021-06-01
申请号：US16231414
申请日：2018-12-22
Applicant: Novatek Microelectronics Corp.
Inventor： Wei-Sheng Tseng , Hao-Wei Hung , Chih-Hao Huang , Yao-Hung Kuo
Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit includes a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit is configured to adjust the at least one operation parameter of the receiving circuit from at least one normal parameter to at least one anti-interference parameter when an interference event occurs to the input signal. The anti-interference circuit is configured to maintain the at least one operation parameter of the receiving circuit at the at least one normal parameter when the interference event does not occur.
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公开(公告)号：US20200265766A1
公开(公告)日：2020-08-20
申请号：US16865424
申请日：2020-05-04
Applicant: Novatek Microelectronics Corp.
Inventor： Chih-Hao Huang , Wei-Sheng Tseng , Yao-Hung Kuo , Hao-Wei Hung
Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit can include a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit can determine whether an interference event occurs to the input signal based on the input signal or the output data to obtain a determination result and determines whether to adjust the at least one operation parameter of the receiving circuit according to the determination result.
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公开(公告)号：US20190340968A1
公开(公告)日：2019-11-07
申请号：US16231418
申请日：2018-12-22
Applicant: Novatek Microelectronics Corp.
Inventor： Chih-Hao Huang , Wei-Sheng Tseng , Yao-Hung Kuo , Hao-Wei Hung
IPC: G09G3/20
Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit includes a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit determines whether an interference event occurs to the input signal based on the input signal or the output data to obtain a determination result and determines whether to adjust the at least one operation parameter of the receiving circuit according to the determination result.
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公开(公告)号：US20140285260A1
公开(公告)日：2014-09-25
申请号：US14295324
申请日：2014-06-03
Applicant: NOVATEK Microelectronics Corp.
Inventor： Xie-Ren Hsu , Ji-Ting Chen , Yao-Hung Kuo
Abstract: An output buffer circuit of a source driver includes an operational amplifier, having a first terminal as an output of the operational amplifier, and an output control unit, coupled between the output terminal of the operational amplifier and a second terminal for driving a load, to generate a variable impedance of a signal output path between the first terminal and the second terminal, wherein when the operational amplifier charges or discharges the second terminal to reach a predetermined level, the output control unit change a value of the variable impedance of the signal output path.
Abstract translation: 源极驱动器的输出缓冲器电路包括具有作为运算放大器的输出的第一端子的运算放大器和耦合在运算放大器的输出端和用于驱动负载的第二端子之间的输出控制单元， 产生第一端子和第二端子之间的信号输出路径的可变阻抗，其中当运算放大器对第二端子进行充电或放电以达到预定电平时，输出控制单元改变信号输出的可变阻抗值 路径。
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