公开(公告)号：US11262865B2

公开(公告)日：2022-03-01

申请号：US16858765

申请日：2020-04-27

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chih-Chang Lai ,  Chih-Yuan Chang

IPC: G06F3/041 ,  G06K9/00 ,  G09G5/00

Abstract: A sensor system includes a sensing panel, at least one multiplexer and a controller. The sensing panel includes one or more sensing areas. The multiplexer is coupled to the one or more sensing areas through one or more connecting wire groups on the sensing panel, wherein each of the connecting wire groups includes one or more connecting wires. The controller is coupled to the at least one multiplexer via one or more control wires and one or more sensing wires. Each of the at least one multiplexer includes one or more switch groups each coupled between one of the one or more sensing wires and one of the connecting wire groups, and each of the switch groups includes one or more switches respectively controlled by one or more control signals transmitted through the one or more control wires.

公开(公告)号：US10055049B2

公开(公告)日：2018-08-21

申请号：US14963257

申请日：2015-12-09

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chih-Chang Lai ,  Chih-Yuan Chang

IPC: G06F3/047 ,  G06F3/041

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04103

Abstract: A touch sensor system includes a touch panel having a plurality of touch sensing areas, at least one multiplexer and a touch controller. The touch controller, for controlling touch driving and sensing on the touch panel, includes a plurality of pins connected to the multiplexer via a plurality of touch control wires and touch sensing wires, wherein each of the pins is connected to one of the touch control wires or touch sensing wires. Each of the touch sensing wires transmits driving signals from the touch controller to a corresponding multiplexer to perform driving on one of the touch sensing areas, and transmits sensing signals from the touch sensing area to the touch controller. The touch controller controls the multiplexer to perform touch driving and sensing on the touch sensing areas in a specific order by triggering the touch control wires in an order.

公开(公告)号：US20170168629A1

公开(公告)日：2017-06-15

申请号：US14963257

申请日：2015-12-09

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chih-Chang Lai ,  Chih-Yuan Chang

IPC: G06F3/041 ,  G06F3/047

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04103

Abstract: A touch sensor system includes a touch panel having a plurality of touch sensing areas, at least one multiplexer and a touch controller. The touch controller, for controlling touch driving and sensing on the touch panel, includes a plurality of pins connected to the multiplexer via a plurality of touch control wires and touch sensing wires, wherein each of the pins is connected to one of the touch control wires or touch sensing wires. Each of the touch sensing wires transmits driving signals from the touch controller to a corresponding multiplexer to perform driving on one of the touch sensing areas, and transmits sensing signals from the touch sensing area to the touch controller. The touch controller controls the multiplexer to perform touch driving and sensing on the touch sensing areas in a specific order by triggering the touch control wires in an order.

公开(公告)号：US20210256240A1

公开(公告)日：2021-08-19

申请号：US16789448

申请日：2020-02-13

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Kai Chen ,  Ting-Hsuan Hung ,  Chih-Yuan Chang ,  Feng-Lin Chan

IPC: G06K9/00

Abstract: A fingerprint detecting system comprises a fingerprint module, for receiving a fingerprint driving signal and performing a frequency modulation on the fingerprint driving signal, to correspondingly outputting a fingerprint signal with a first frequency based on the fingerprint driving signal, and a signal processing circuit, coupled to the fingerprint module, for receiving the fingerprint signal with the first frequency, performing a frequency demodulation to shift the first frequency of the fingerprint signal to a second frequency, and filtering the fingerprint signal with the second frequency based on the first frequency, whereby the filtered fingerprint signal is used for a fingerprint data analysis.

公开(公告)号：US11062650B2

公开(公告)日：2021-07-13

申请号：US16576776

申请日：2019-09-20

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Yuan Chang ,  Feng-Lin Chan

IPC: G09G3/3233 ,  H03F3/393

Abstract: A sensing circuit of a display device is provided. The sensing circuit includes a chopper circuit, a first operational amplifier and a filter. The chopper circuit is configured to receive a sensing input signal of the display device and modulate the sensing input signal. The first operational amplifier is coupled to the chopper circuit. The first operational amplifier is configured to receive the modulated sensing input signal and output the modulated sensing input signal to the chopper circuit. The chopper circuit is further configured to demodulate the modulated sensing input signal from the first operational amplifier and output the demodulated sensing input signal. The filter is coupled to the chopper circuit. The filter is configured to filter the demodulated sensing input signal from the chopper circuit and output the filtered sensing input signal as a sensing output signal. A source driver including the sensing circuit is also provided.

公开(公告)号：US20200257427A1

公开(公告)日：2020-08-13

申请号：US16858765

申请日：2020-04-27

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chih-Chang Lai ,  Chih-Yuan Chang

IPC: G06F3/041 ,  G06K9/00 ,  G09G5/00

Abstract: A sensor system includes a sensing panel, at least one multiplexer and a controller. The sensing panel includes one or more sensing areas . The multiplexer is coupled to the one or more sensing areas through one or more connecting wire groups on the sensing panel, wherein each of the connecting wire groups includes one or more connecting wires. The controller is coupled to the at least one multiplexer via one or more control wires and one or more sensing wires. Each of the at least one multiplexer includes one or more switch groups each coupled between one of the one or more sensing wires and one of the connecting wire groups, and each of the switch groups includes one or more switches respectively controlled by one or more control signals transmitted through the one or more control wires.

公开(公告)号：US20160126972A1

公开(公告)日：2016-05-05

申请号：US14582215

申请日：2014-12-24

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Yuan Chang

IPC: H03M3/00 ,  G06F3/041

CPC classification number: G06F3/0416 ,  H03M3/396 ,  H03M3/422 ,  H03M3/438 ,  H03M3/458

Abstract: A touch control detection system, a delta-sigma modulator and a modulating method thereof are provided. The delta-sigma modulator includes a quantizer and N integrating units. The quantizer generates a modulating result signal. The integrating units are coupled in series. Each of the integrating receives an input signal, and each of the integrating units receives a plurality of gain parameters, N is a positive integer. The quantizer quantizes a signal on an output end of the Nth stage integrating unit according to an error signal for generating the modulating result signal. A center frequency of a noise transfer function (NTF) of the delta-sigma modulator is adjusted according to the gain parameters, and the gain parameters are determined according to a frequency of the input signal.

Abstract translation: 提供了一种触摸控制检测系统，一种Δ-Σ调制器及其调制方法。 Δ-Σ调制器包括量化器和N个积分单元。 量化器产生调制结果信号。 整合单元串联。 每个积分接收输入信号，并且每个积分单元接收多个增益参数，N是正整数。 量化器根据用于产生调制结果信号的误差信号对第N级积分单元的输出端上的信号进行量化。 根据增益参数调整Δ-Σ调制器的噪声传递函数（NTF）的中心频率，并根据输入信号的频率确定增益参数。

公开(公告)号：US20150091847A1

公开(公告)日：2015-04-02

申请号：US14210468

申请日：2014-03-14

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Yuan Chang

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A touch control detecting apparatus and method are provided. The touch control detecting method is adapted for a touch panel which has a plurality of touch rows and touch columns. The touch control detecting method includes: executing a mutual capacitor touch detection and a self-capacitor touch detection on the touch panel simultaneously, and obtaining a mutual capacitor touch detecting result and a self-capacitor touch detecting result respectively; and then executing an operation on the mutual capacitor touch detecting result and the self-capacitor touch detecting result to obtain position information of at least one touch point on the touch panel.

Abstract translation: 提供一种触摸控制检测装置和方法。 触摸控制检测方法适用于具有多个触摸行和触摸列的触摸面板。 触摸控制检测方法包括：同时对触摸面板执行互电容触摸检测和自电容触摸检测，分别获得互电容触摸检测结果和自电容触摸检测结果; 然后对相互电容器触摸检测结果和自身电容触摸检测结果执行操作，以获得触摸面板上的至少一个触摸点的位置信息。

公开(公告)号：US20210256236A1

公开(公告)日：2021-08-19

申请号：US16790636

申请日：2020-02-13

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Kai Chen ,  Ting-Hsuan Hung ,  Chih-Yuan Chang ,  Feng-Lin Chan

IPC: G06K9/00

Abstract: A fingerprint detecting system comprises a fingerprint module, for detecting a fingerprint of a user and outputting a current signal according to the detected fingerprint, and a signal processing circuit, coupled to the fingerprint module, for receiving the current signal from the fingerprint module, performing a offset cancellation for the current signal to remove an offset of the current signal, and converting the current signal without the offset to a voltage signal for fingerprint data analysis.

公开(公告)号：US10678369B2

公开(公告)日：2020-06-09

申请号：US16049823

申请日：2018-07-31

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chih-Chang Lai ,  Chih-Yuan Chang

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch sensor system includes a touch panel, at least one multiplexer and a touch controller. The touch panel includes one or more touch sensing areas. The at least one multiplexer is coupled to the one or more touch sensing areas through one or more connecting wire groups on the touch panel, wherein each of the connecting wire groups includes one or more connecting wires. The touch controller is coupled to the at least one multiplexer via one or more touch control wires and one or more touch sensing wires. Each of the at least one multiplexer includes one or more switch groups each coupled between one of the one or more touch sensing wires and one of the connecting wire groups, and each of the switch groups includes one or more switches respectively controlled by one or more control signals transmitted through the one or more touch control wires.