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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
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.
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公开(公告)号：US10606409B2
公开(公告)日：2020-03-31
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: G06F13/12 , G06F13/38 , G06F3/041 , G06F1/3234
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.
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公开(公告)号：US10474293B2
公开(公告)日：2019-11-12
申请号：US15726404
申请日：2017-10-06
Applicant: NOVATEK Microelectronics Corp.
Inventor： Hung-Cheng Kuo , Yung-Fu Lin , Chun-Hung Chen , Ting-Hsuan Hung
Abstract: A signal processing method for a touch panel includes transmitting a first driving signal to a first touch channel of the touch panel; and transmitting a second driving signal to a second touch channel of the touch panel, wherein the second touch channel is neighboring to the first touch channel. The first driving signal is substantially identical to the second driving signal during a first period, and the first driving signal is substantially inverse to the second driving signal during a second period neighboring to the first period.
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公开(公告)号：US20190107916A1
公开(公告)日：2019-04-11
申请号：US15726404
申请日：2017-10-06
Applicant: NOVATEK Microelectronics Corp.
Inventor： Hung-Cheng Kuo , Yung-Fu Lin , Chun-Hung Chen , Ting-Hsuan Hung
CPC classification number: G06F3/0418 , G06F3/044
Abstract: A signal processing method for a touch panel includes transmitting a first driving signal to a first touch channel of the touch panel; and transmitting a second driving signal to a second touch channel of the touch panel, wherein the second touch channel is neighboring to the first touch channel. The first driving signal is substantially identical to the second driving signal during a first period, and the first driving signal is substantially inverse to the second driving signal during a second period neighboring to the first period.
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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.
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Patent Agency Ranking
6.发明授权公开(公告)号：US09841849B2
公开(公告)日：2017-12-12
申请号：US14141452
申请日：2013-12-27
Applicant: Novatek Microelectronics Corp.
Inventor： Hung-Cheng Kuo , Tsen-Wei Chang
CPC classification number: G06F3/044 , G06F3/0416 , G09G5/18
Abstract: A carrier signal detection apparatus, a touch control apparatus and detection methods thereof are provided. The carrier signal detection apparatus includes an analog to digital converting (ADC) apparatus and a filter. The ADC apparatus receives an analog input signal and converts the analog input signal to a digital signal. The filter receives the digital signal and accumulates the digital signal according to a delay time for generating a carrier signal detection result.
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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
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.
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公开(公告)号：US10289245B2
公开(公告)日：2019-05-14
申请号：US14607031
申请日：2015-01-27
Applicant: Novatek Microelectronics Corp.
Inventor： Hung-Cheng Kuo , Po-Wei Chen , Chun-Hung Chen
Abstract: A noise detection method including the following steps is provided. During different time periods, plural sets of driving signals are respectively transmitted to driving lines of the touch panel to drive sensing lines of the touch panel to generate plural sets of sensing signals. The plural sets of sensing signals are respectively received and calculated to obtain plural sets of summation signals. One set of summation signals includes first summation signals, and another set of summation signals includes second summation signals. A part or all of the first summation signals is replaced by the second summation signals. A signal value of a combination of the first and the second summation signals is calculated to obtain a summation thereof. The summation of the signal value of the combination is smaller than a summation of a signal values of the first summation signals before recombination.
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9.发明申请公开(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.
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10.发明申请CARRIER SIGNAL DETECTION APPARATUS, TOUCH CONTROL DETECTION APPARATUS AND DETECTION METHODS THEREOF 有权载波信号检测装置，触控控制检测装置及其检测方法公开(公告)号：US20150130744A1
公开(公告)日：2015-05-14
申请号：US14141452
申请日：2013-12-27
Applicant: Novatek Microelectronics Corp.
Inventor： Hung-Cheng Kuo , Tsen-Wei Chang
CPC classification number: G06F3/044 , G06F3/0416 , G09G5/18
Abstract: A carrier signal detection apparatus, a touch control apparatus and detection methods thereof are provided. The carrier signal detection apparatus includes an analog to digital converting (ADC) apparatus and a filter. The ADC apparatus receives an analog input signal and converts the analog input signal to a digital signal. The filter receives the digital signal and accumulates the digital signal according to a delay time for generating a carrier signal detection result.
Abstract translation: 提供载波信号检测装置，触摸控制装置及其检测方法。 载波信号检测装置包括模数转换（ADC）装置和滤波器。 ADC装置接收模拟输入信号并将模拟输入信号转换为数字信号。 滤波器接收数字信号并根据用于产生载波信号检测结果的延迟时间累加数字信号。
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