Patents by Inventor Hsiang-Cheng YU
Hsiang-Cheng YU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11481063Abstract: A touch driving device and a touch movement track identification method are provided. The touch driving device includes a touch sensing circuit and a touch control circuit. The touch sensing circuit receives touch sensing signals from a touch sensor array when a touch display screen is operated in a display power saving mode, and generates digital touch sensing data according to the touch sensing signals. The touch control circuit periodically generates touch coordinates according to the digital touch sensing data, identifies whether an input symbol corresponding to a touch movement track formed by the touch coordinates generated consecutively matches a preconfigured symbol, and outputs a matching result to a core processing unit of the electronic device. The touch coordinates are generated when the orientation of the input symbol drawn on the touch display screen is not the same as a screen orientation of the touch display screen.Type: GrantFiled: September 30, 2020Date of Patent: October 25, 2022Assignee: Novatek Microelectronics Corp.Inventors: Li-Hsin Chen, Chin-Lin Lee, Hsiang-Cheng Yu
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Patent number: 11442575Abstract: The disclosure provides a touch display driving apparatus and an operation method thereof. The touch display driving apparatus is configured to drive a touch display panel. The touch display driving apparatus includes a touch sensing circuit configured to output a touch driving signal to a touch sensor array of the touch display panel, and receive touch sensing signals from the touch sensor array. The touch driving signal is configured to scan the touch sensor array at a normal scan rate in a normal touch scanning mode, and scan, in response to a touch event which is determined as occurring in a doze mode, the touch sensor array at a first scan rate in a fast touch scanning mode immediately preceding to the normal touch scanning mode, wherein the first scan rate is greater than the normal scan rate.Type: GrantFiled: September 1, 2020Date of Patent: September 13, 2022Assignee: Novatek Microelectronics Corp.Inventors: Yi-Chia Hsu, Hsiang-Cheng Yu, Chin-Lin Lee
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Publication number: 20210109634Abstract: A touch driving device and a touch movement track identification method are provided. The touch driving device includes a touch sensing circuit and a touch control circuit. The touch sensing circuit receives touch sensing signals from a touch sensor array when a touch display screen is operated in a display power saving mode, and generates digital touch sensing data according to the touch sensing signals. The touch control circuit periodically generates touch coordinates according to the digital touch sensing data, identifies whether an input symbol corresponding to a touch movement track formed by the touch coordinates generated consecutively matches a preconfigured symbol, and outputs a matching result to a core processing unit of the electronic device. The touch coordinates are generated when the orientation of the input symbol drawn on the touch display screen is not the same as a screen orientation of the touch display screen.Type: ApplicationFiled: September 30, 2020Publication date: April 15, 2021Applicant: Novatek Microelectronics Corp.Inventors: Li-Hsin Chen, Chin-Lin Lee, Hsiang-Cheng Yu
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Publication number: 20210064214Abstract: The disclosure provides a touch display driving apparatus and an operation method thereof. The touch display driving apparatus is configured to drive a touch display panel. The touch display driving apparatus includes a touch sensing circuit configured to output a touch driving signal to a touch sensor array of the touch display panel, and receive touch sensing signals from the touch sensor array. The touch driving signal is configured to scan the touch sensor array at a normal scan rate in a normal touch scanning mode, and scan, in response to a touch event which is determined as occurring in a doze mode, the touch sensor array at a first scan rate in a fast touch scanning mode immediately preceding to the normal touch scanning mode, wherein the first scan rate is greater than the normal scan rate.Type: ApplicationFiled: September 1, 2020Publication date: March 4, 2021Applicant: Novatek Microelectronics Corp.Inventors: Yi-Chia Hsu, Hsiang-Cheng Yu, Chin-Lin Lee
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Patent number: 9886153Abstract: A touch sensing system for avoiding display noises includes a touch display panel, a display driver integrated circuit and a touch control integrated circuit. The display driver integrated circuit is connected to the touch display panel for performing a display operation. The touch control integrated circuit is connected to the touch display panel and the display driver integrated circuit. The touch control integrated circuit performs a touch sensing on the touch display panel in a vertical blanking interval based on a vertical synchronous signal to generate a first set of touch position data, and perform a touch sensing on the touch display panel in a non-vertical blanking interval to generate a second set of touch position data. The touch control integrated circuit updates the second set of touch position data based on the first set of touch position data.Type: GrantFiled: February 1, 2016Date of Patent: February 6, 2018Assignee: FORCALTECH SYSTEMS CO., LTD.Inventors: Hsin-Mao Huang, Hsiang-Cheng Yu, Shu-Ming Fan
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Patent number: 9639192Abstract: A multi-touch system for controlling liquid crystal capacitors to reduce touch sensing interferences includes K gate driving lines, which are divided into N groups each corresponding to a common voltage conductive line. When a display driving signal is applied to an i-th group of gate driving lines for performing a display driving, the liquid crystal capacitor corresponding to the i-th group is set to a predetermined voltage, where i=1 to N. Finally, a touch driving signal is applied to an i-th common voltage conductive line corresponding to the i-th group for sensing touch points, so as to reduce touch sensing affections caused by noises of the liquid crystal display.Type: GrantFiled: August 27, 2013Date of Patent: May 2, 2017Assignee: FOCALTECH SYSTEMS CO., LTD.Inventors: Hsin-Mao Huang, Hsiang-Cheng Yu, Shih-Hsin Huang
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Publication number: 20160357315Abstract: A touch sensing system for avoiding display noises includes a touch display panel, a display driver integrated circuit and a touch control integrated circuit. The display driver integrated circuit is connected to the touch display panel for performing a display operation. The touch control integrated circuit is connected to the touch display panel and the display driver integrated circuit. The touch control integrated circuit performs a touch sensing on the touch display panel in a vertical blanking interval based on a vertical synchronous signal to generate a first set of touch position data, and perform a touch sensing on the touch display panel in a non-vertical blanking interval to generate a second set of touch position data. The touch control integrated circuit updates the second set of touch position data based on the first set of touch position data.Type: ApplicationFiled: February 1, 2016Publication date: December 8, 2016Inventors: Hsin-Mao HUANG, Hsiang-Cheng YU, Shu-Ming FAN
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Patent number: 9471186Abstract: A method for improving linearity of touch system coordinates first reads two-dimensional raw data of a capacitive touch panel. Next, it reads a pixel and adjacent pixels of the pixel from the two-dimension raw data. Then, it determines whether the value of the pixel is great than a pre-determined threshold. If the value of the pixel is not greater than the pre-determined threshold, it then determines whether there is a value of the adjacent pixels is greater than the pre-determined threshold. If there is no value of the adjacent pixels greater than the pre-determined threshold, it sets the value of the pixel to a pre-determined value. Otherwise, it reserves the value of the pixel in order to increase the linearity of two-dimensional raw data so as to avoid the interference of noise to the two-dimensional raw data.Type: GrantFiled: October 8, 2013Date of Patent: October 18, 2016Assignee: FOCALTECH SYSTEMS CO., LTD.Inventors: Hsin-Mao Huang, Chih-Hung Kung, Hsiang-Cheng Yu, Shih-Hsin Huang
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Patent number: 9280243Abstract: In a sensing method using self-capacitance and mutual-capacitance alternatively to reduce touch noises, a control device configures a first driving and sensing device and a second driving and sensing device to perform an initialization. The control device configures the first and second driving and sensing devices to perform at least one self-capacitance sensing for producing a first possible touch point range during a first work mode. Then, the control device configures the first and second driving and sensing devices to perform at least one mutual-capacitance sensing for producing a second possible touch point range during a second work mode. The control device determines if there is range conjunction between the first and second possible touch point ranges. The control device produces a possible touch point range conjunction and calculates coordinates of touch points based on the possible touch point range conjunction.Type: GrantFiled: January 23, 2014Date of Patent: March 8, 2016Assignee: FOCALTECH SYSTEMS CO., LTD.Inventors: Hsin-Mao Huang, Hsiang Cheng Yu, Chih-Hung Kung, Shih-Hsin Huang
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Publication number: 20140204058Abstract: In a sensing method using self-capacitance and mutual-capacitance alternatively to reduce touch noises, a control device configures a first driving and sensing device and a second driving and sensing device to perform an initialization. The control device configures the first and second driving and sensing devices to perform at least one self-capacitance sensing for producing a first possible touch point range during a first work mode. Then, the control device configures the first and second driving and sensing devices to perform at least one mutual-capacitance sensing for producing a second possible touch point range during a second work mode. The control device determines if there is range conjunction between the first and second possible touch point ranges. The control device produces a possible touch point range conjunction and calculates coordinates of touch points based on the possible touch point range conjunction.Type: ApplicationFiled: January 23, 2014Publication date: July 24, 2014Applicant: Orise Technology Co., LtdInventors: Hsin-Mao HUANG, Hsiang Cheng YU, Chih-Hung KUNG, Shih-Hsin HUANG
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Publication number: 20140118297Abstract: A method for improving linearity of touch system coordinates first reads two-dimensional raw data of a capacitive touch panel. Next, it reads a pixel and adjacent pixels of the pixel from the two-dimension raw data. Then, it determines whether the value of the pixel is great than a pre-determined threshold. If the value of the pixel is not greater than the pre-determined threshold, it then determines whether there is a value of the adjacent pixels is greater than the pre-determined threshold. If there is no value of the adjacent pixels greater than the pre-determined threshold, it sets the value of the pixel to a pre-determined value. Otherwise, it reserves the value of the pixel in order to increase the linearity of two-dimensional raw data so as to avoid the interference of noise to the two-dimensional raw data.Type: ApplicationFiled: October 8, 2013Publication date: May 1, 2014Applicant: ORISE TECHNOLOGY CO., LTD.Inventors: Hsin-Mao HUANG, Chih-Hung KUNG, Hsiang-Cheng YU, Shih-Hsin HUANG
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Publication number: 20140098056Abstract: A multi-touch system for controlling liquid crystal capacitors to reduce touch sensing interferences includes K gate driving lines, which are divided into N groups each corresponding to a common voltage conductive line. When a display driving signal is applied to an i-th group of gate driving lines for performing a display driving, the liquid crystal capacitor corresponding to the i-th group is set to a predetermined voltage, where i=1 to N. Finally, a touch driving signal is applied to an i-th common voltage conductive line corresponding to the i-th group for sensing touch points, so as to reduce touch sensing affections caused by noises of the liquid crystal display.Type: ApplicationFiled: August 27, 2013Publication date: April 10, 2014Applicant: Orise Technology Co., Ltd.Inventors: Hsin-Mao HUANG, Hsiang-Cheng YU, Shih-Hsin HUANG