公开(公告)号：US20180157374A1

公开(公告)日：2018-06-07

申请号：US15889228

申请日：2018-02-06

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Cheng Kuo ,  Chun-Hung Chen ,  Chun-Ching Huang

IPC: G06F3/041

CPC classification number: G06F3/0418 ,  G06F3/041

Abstract: A method of determining a touch event in a touch detection system includes: receiving at least one sensing signal corresponding to at least one driving signal configured to drive a touch panel; determining whether a touch event occurs by performing an initial digital operation on the at least one sensing signal; performing an entire determination on the at least one sensing signal after at least one of one or more predetermined conditions is determined to be satisfied, wherein one of the one or more predetermined conditions is that the touch event is determined to occur; and not performing the entire determination on the at least one sensing signal after each of the one or more predetermined conditions is determined to be unsatisfied.

公开(公告)号：US09766752B2

公开(公告)日：2017-09-19

申请号：US14710618

申请日：2015-05-13

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Cheng Kuo ,  Chun-Hung Chen ,  Chun-Ching Huang

IPC: G06F13/12 ,  G06F13/38 ,  G06F3/041

CPC classification number: G06F3/0418 ,  G06F3/041

Abstract: A method of determining a touch event in a touch detection system includes transmitting at least one driving signal to a touch panel of the touch detection system; receiving a sensing signal corresponding to the driving signal from the touch panel; determining whether the touch event occurs by performing an initial digital operation on the sensing signal; determining whether the sensing signal is interfered with by a noise signal; and performing an entire determination on the sensing signal when the touch event is determined to occur or the sensing signal is determined to be interfered with by the noise signal.

公开(公告)号：US20180314388A1

公开(公告)日：2018-11-01

申请号：US16029665

申请日：2018-07-09

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Cheng Kuo ,  Chun-Hung Chen ,  Chun-Ching Huang

IPC: G06F3/041

Abstract: A method for processing sensing signals in a sensing system includes receiving at least one sensing signal; performing a first operation on the at least one sensing signal to determine whether the at least one sensing signal satisfies a first predetermined condition; performing a second operation on the at least one sensing signal after a second predetermined condition is determined to be satisfied, wherein the second predetermined condition comprises a condition that the first predetermined condition is determined to be satisfied, wherein the second operation provides more sensing information than the first operation; and not performing the second operation on the at least one sensing signal after a third predetermined condition is determined to be satisfied, wherein the third predetermined condition comprises a condition that the first predetermined condition is determined to be unsatisfied.

公开(公告)号：US09229519B2

公开(公告)日：2016-01-05

申请号：US13677270

申请日：2012-11-14

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hui-Hung Chang ,  Chun-Ching Huang ,  Shih-Ming Lin

IPC: G06F1/32

CPC classification number: G06F1/3215 ,  G06F1/325

Abstract: The present invention discloses a serial interface transmitting method utilized in a serial interface for connecting between a master controller and a peripheral device. The serial interface transmitting method comprises receiving a saving power signal from the master controller, a peripheral clock source and a serial interface clock source for generating a clock source selection result, switching an operational mode of the peripheral device according to the clock source selection result, and transmitting a datum to a peripheral-device register or a serial interface register according to the saving power signal and the operational mode.

Abstract translation: 本发明公开了一种在串行接口中用于连接主控制器和外围设备之间的串行接口发送方法。 串行接口发送方法包括从主控制器，外围时钟源和串行接口时钟源接收用于产生时钟源选择结果的保存功率信号，根据时钟源选择结果切换外围设备的操作模式， 以及根据所述保存功率信号和所述操作模式将数据发送到外围设备寄存器或串行接口寄存器。

公开(公告)号：US20150338993A1

公开(公告)日：2015-11-26

申请号：US14710618

申请日：2015-05-13

Applicant: Novatek Microelectronics Corp.

Inventor： Hung-Cheng Kuo ,  Chun-Hung Chen ,  Chun-Ching Huang

IPC: G06F3/041

CPC classification number: G06F3/0418 ,  G06F3/041

Abstract: A method of determining a touch event in a touch detection system includes transmitting at least one driving signal to a touch panel of the touch detection system; receiving a sensing signal corresponding to the driving signal from the touch panel; determining whether the touch event occurs by performing an initial digital operation on the sensing signal; determining whether the sensing signal is interfered with by a noise signal; and performing an entire determination on the sensing signal when the touch event is determined to occur or the sensing signal is determined to be interfered with by the noise signal.

Abstract translation: 一种在触摸检测系统中确定触摸事件的方法包括将至少一个驱动信号发送到触摸检测系统的触摸面板; 从所述触摸面板接收与所述驱动信号相对应的感测信号; 通过对感测信号执行初始数字操作来确定触摸事件是否发生; 确定感测信号是否被噪声信号干扰; 以及当确定触摸事件发生时或者感测信号被噪声信号干扰时，对感测信号执行整个确定。

公开(公告)号：US20220171515A1

公开(公告)日：2022-06-02

申请号：US17672718

申请日：2022-02-16

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yu-Chung Lin ,  He-Wei Huang ,  Chun-Ching Huang ,  Yao-Ren Fan

IPC: G06F3/041

Abstract: A controller of a touch display device is configured to perform steps of: transmitting a main uplink signal to an input device, the main uplink signal indicating an amount of a plurality of downlink signals transmitted in a frame; transmitting a first sub-uplink signal to the input device, the first sub-uplink signal notifying the input device of a time length of a first downlink signal among the plurality of downlink signals; transmitting a second sub-uplink signal to the input device, the second sub-uplink signal notifying the input device of a time length of a second downlink signal among the plurality of downlink signals; and receiving the plurality of downlink signals from the input device.

公开(公告)号：US11003282B2

公开(公告)日：2021-05-11

申请号：US16596705

申请日：2019-10-08

Applicant: Novatek Microelectronics Corp.

Inventor： Chun-Ching Huang ,  Fang-Chun Lan

IPC: G06F3/041

Abstract: A touch controller and a noise detection method that are capable of accurately detecting noises in a sensing signal are introduced. The touch controller may include a demodulator that is configured to receive a sensing signal and demodulate the sensing signal with a first frequency during a touch detection period. The demodulator may include a first filter that is configured to perform a noise detection operation on the sensing signal to output a first noise detection signal with a second frequency range adjacent to the first frequency. The first filter may have a plurality of peak frequencies different from the first frequency.

公开(公告)号：US20210103376A1

公开(公告)日：2021-04-08

申请号：US16596705

申请日：2019-10-08

Applicant: Novatek Microelectronics Corp.

Inventor： Chun-Ching Huang ,  Fang-Chun Lan

IPC: G06F3/041

Abstract: A touch controller and a noise detection method that are capable of accurately detecting noises in a sensing signal are introduced. The touch controller may include a demodulator that is configured to receive a sensing signal and demodulate the sensing signal with a first frequency during a touch detection period. The demodulator may include a first filter that is configured to perform a noise detection operation on the sensing signal to output a first noise detection signal with a second frequency range adjacent to the first frequency. The first filter may have a plurality of peak frequencies different from the first frequency.

公开(公告)号：US20170123523A1

公开(公告)日：2017-05-04

申请号：US14925986

申请日：2015-10-29

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chun-Ching Huang ,  Hung-Cheng Kuo ,  Chun-Hung Chen

IPC: G06F3/041

CPC classification number: G06F3/041 ,  G06F3/0418 ,  G06F3/044

Abstract: A carrier touch sensing system includes a demodulation circuit coupled to a touch panel, used for performing in-phase and quadrature demodulations to a plurality of carrier sensing signals to generate and store a plurality of phase delay information if the carrier touch sensing system operates in a phase calibration mode. The demodulation circuit is further used for performing in-phase demodulation to the plurality of carrier sensing signals according to the plurality of phase delay information to generate a plurality of touch signals if the carrier touch sensing system operates in a normal scan mode.

公开(公告)号：US10747364B2

公开(公告)日：2020-08-18

申请号：US15663834

申请日：2017-07-31

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Cheng Kuo ,  Chun-Hung Chen ,  Chun-Ching Huang

IPC: G06F13/38 ,  G06F3/03 ,  G06F3/041

Abstract: A noise detection device includes a drive circuit, a sense circuit and a controller. The drive circuit drives a plurality of drive lines having a first polarity pattern and a second polarity pattern, wherein an operation of the first polarity pattern and the second polarity pattern substantially equals zero over a predetermined time period. The sense circuit senses a plurality of sense signals from at least one sense line during the predetermined time period. The controller derives a magnitude of a noise signal from the at least one sense line according to the sense signals.