Patents by Inventor Hsin-Hao Wang
Hsin-Hao Wang 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).
-
Patent number: 9547396Abstract: An in-cell multi-touch panel system includes: an in-cell touch display panel, a touch display control system. In a first frame time interval, the touch display control system drives the in-cell touch display panel and samples the sensing voltage from the in-cell touch display panel to determine whether there is an approaching external object and noise interference. In a second frame time interval, the touch display control system finds out a frequency with minimum noise for use as a frequency of the touch driving signal when the noise interference exists. In a third frame time interval, the touch display control system is based on the frequency with minimum noise to correspondingly generate the touch driving signal so as to determine whether there is an approaching external object.Type: GrantFiled: May 28, 2014Date of Patent: January 17, 2017Assignee: FOCALTECH SYSTEMS CO., LTD.Inventors: Hsin-Hao Wang, Yen-Lin Huang
-
Patent number: 9195355Abstract: In a method for increasing accuracy of touch coordinate calculation in a capacitive multi-touch system, it performs operations on obtained data for de-noising of the obtained data and increasing its linearity so as to generate data with excellent stability and linearity. An integral accumulation operation is performed to generate data for each sensing channel, cancel the accumulation error in data, and calculate coordinates for touch points on a capacitive touch panel.Type: GrantFiled: June 18, 2013Date of Patent: November 24, 2015Assignee: FOCALTECH SYSTEMS CO., LTD.Inventors: Hsin-Hao Wang, Chih-Hung Kung, Yen-Lin Huang
-
Patent number: 9170681Abstract: A noise reduction system includes a driving device, a sensing device, a first switch, a second switch, and a controller. The driving device has a plurality of drivers for generating touch driving signals. The sensing device has a plurality of sensors for detecting whether there is an external object approached and generating touch sensing signals. The first switch is provided for electrically connecting the plurality of drivers and the plurality of sensors to the capacitive touch panel. The second switch is provided for electrically connecting the plurality of drivers and the plurality of sensors to the capacitive touch panel. The controller configures the first switch and the second switch to perform a first direction driving and second direction sensing, and configuring the first switch and the second switch to perform a second direction driving and first direction sensing.Type: GrantFiled: October 30, 2013Date of Patent: October 27, 2015Assignee: FOCALTECH SYSTEMS CO., LTD.Inventors: Hsin-Mao Huang, Chih-Hung Kung, Hsin-Hao Wang
-
Patent number: 8928622Abstract: In a demodulation system for a low-power differential-sensing capacitive touch panel, the capacitive touch panel has n first conductor lines in a first direction and m second conductor lines in a second direction, and a mutual capacitance is generated at each intersection of the n first conductor lines and the m second conductor lines. The demodulation system has a signal generator, a detection circuit, a programmable gain amplifier, an analog to digital converter. During a driving cycle, the signal generator generates a pair of differential driving signals to drive two of the first conductor lines in the first direction for eliminating common noises of the two first conductor lines and avoiding the common noises from being amplified by the programmable gain amplifier.Type: GrantFiled: December 13, 2011Date of Patent: January 6, 2015Assignee: Orise Technology Co., Ltd.Inventors: Hsin-Hao Wang, Yen-Lin Huang
-
Publication number: 20140354590Abstract: An in-cell multi-touch panel system includes: an in-cell touch display panel, a touch display control system. In a first frame time interval, the touch display control system drives the in-cell touch display panel and samples the sensing voltage from the in-cell touch display panel to determine whether there is an approaching external object and noise interference. In a second frame time interval, the touch display control system finds out a frequency with minimum noise for use as a frequency of the touch driving signal when the noise interference exists. In a third frame time interval, the touch display control system is based on the frequency with minimum noise to correspondingly generate the touch driving signal so as to determine whether there is an approaching external object.Type: ApplicationFiled: May 28, 2014Publication date: December 4, 2014Applicant: Orise Technology Co., Ltd.Inventors: Hsin-Hao WANG, Yen-Lin HUANG
-
Publication number: 20140132556Abstract: A noise reduction system includes a driving device, a sensing device, a first switch, a second switch, and a controller. The driving device has a plurality of drivers for generating touch driving signals. The sensing device has a plurality of sensors for detecting whether there is an external object approached and generating touch sensing signals. The first switch is provided for electrically connecting the plurality of drivers and the plurality of sensors to the capacitive touch panel. The second switch is provided for electrically connecting the plurality of drivers and the plurality of sensors to the capacitive touch panel. The controller configures the first switch and the second switch to perform a first direction driving and second direction sensing, and configuring the first switch and the second switch to perform a second direction driving and first direction sensing.Type: ApplicationFiled: October 30, 2013Publication date: May 15, 2014Applicant: ORISE TECHNOLOGY CO., LTD.Inventors: Hsin-Mao HUANG, Chih-Hung KUNG, Hsin-Hao WANG
-
Patent number: 8681110Abstract: A sensing circuit of a capacitive touch panel includes an operation amplifier, a first switch, a second switch, first and second feedback capacitors, a third switch, a fourth switch, a fifth switch and a sixth switch. The operation amplifier includes a positive input terminal, a negative input terminal and an output terminal. A reference voltage is inputted into the positive input terminal. The first switch is connected between a receiving electrode and the negative input terminal. The second switch is connected between the negative input terminal and the output terminal. The third switch is connected to the negative input terminal and the first feedback capacitor. The fourth switch is connected to the first feedback capacitor and the output terminal. The fifth switch is connected to the negative input terminal and the second feedback capacitor. The sixth switch is connected to the second feedback capacitor and the output terminal.Type: GrantFiled: October 12, 2010Date of Patent: March 25, 2014Assignee: Orise Technology Co., Ltd.Inventors: Yen-Lin Huang, Hsin-Hao Wang
-
Publication number: 20130342502Abstract: In a method for increasing accuracy of touch coordinate calculation in a capacitive multi-touch system, it performs operations on obtained data for de-noising of the obtained data and increasing its linearity so as to generate data with excellent stability and linearity. An integral accumulation operation is performed to generate data for each sensing channel, cancel the accumulation error in data, and calculate coordinates for touch points on a capacitive touch panel.Type: ApplicationFiled: June 18, 2013Publication date: December 26, 2013Inventors: Hsin-Hao WANG, Chih-Hung KUNG, Yen-Lin HUANG
-
Patent number: 8514191Abstract: A touch panel sensing circuit senses a voltage variation of a coupling capacitor formed between a first directional signal line and a second directional signal line separated from the first directional signal line by a dielectric when an object approaches. The sensing circuit eliminates the parasitic capacitance effect on the signal lines and rapidly accumulates charges for an amplifier in sensing to thereby increase the operational speed of the sensing circuit.Type: GrantFiled: October 20, 2010Date of Patent: August 20, 2013Assignee: Orise Technology Co., Ltd.Inventors: Hsin-Hao Wang, Yen-Lin Huang
-
Patent number: 8421774Abstract: A sensing circuit of a capacitive touch panel includes a first switch, a second switch, a third switch, a feedback capacitor, a fourth switch and an operation amplifier. The first switch and the second switch have respective first ends connected with a receiving electrode. The third switch has a first end connected with a second end of the first switch. The feedback capacitor has a first end connected with the second end of the first switch. The fourth switch has a first end connected with a second end of the feedback capacitor. The operation amplifier has a positive input terminal connected with a ground terminal, a negative input terminal connected with the fourth switch, and an output terminal connected with the second, third and fourth switches. These switches are controlled during a driving cycle of the driving signal, so that an output voltage is outputted from the operation amplifier.Type: GrantFiled: December 23, 2010Date of Patent: April 16, 2013Assignee: Orise Technology Co., Ltd.Inventors: Hsin-Hao Wang, Yen-Lin Huang
-
Publication number: 20120194469Abstract: In a demodulation system for a low-power differential-sensing capacitive touch panel, the capacitive touch panel has n first conductor lines in a first direction and m second conductor lines in a second direction, and a mutual capacitance is generated at each intersection of the n first conductor lines and the m second conductor lines. The demodulation system has a signal generator, a detection circuit, a programmable gain amplifier, an analog to digital converter. During a driving cycle, the signal generator generates a pair of differential driving signals to drive two of the first conductor lines in the first direction for eliminating common noises of the two first conductor lines and avoiding the common noises from being amplified by the programmable gain amplifier.Type: ApplicationFiled: December 13, 2011Publication date: August 2, 2012Applicant: ORISE TECHNOLOGY CO., LTD.Inventors: Hsin-Hao WANG, Yen-Lin HUANG
-
Publication number: 20110157081Abstract: A sensing circuit of a capacitive touch panel includes a first switch, a second switch, a third switch, a feedback capacitor, a fourth switch and an operation amplifier. The first switch and the second switch have respective first ends connected with a receiving electrode. The third switch has a first end connected with a second end of the first switch. The feedback capacitor has a first end connected with the second end of the first switch. The fourth switch has a first end connected with a second end of the feedback capacitor. The operation amplifier has a positive input terminal connected with a ground terminal, a negative input terminal connected with the fourth switch, and an output terminal connected with the second, third and fourth switches. These switches are controlled during a driving cycle of the driving signal, so that an output voltage is outputted from the operation amplifier.Type: ApplicationFiled: December 23, 2010Publication date: June 30, 2011Applicant: Orise Technology Co., Ltd.Inventors: Hsin-Hao Wang, Yen-Lin Huang
-
Publication number: 20110102061Abstract: A touch panel sensing circuit senses a voltage variation of a coupling capacitor formed between a first directional signal line and a second directional signal line separated from the first directional signal line by a dielectric when an object approaches. The sensing circuit eliminates the parasitic capacitance effect on the signal lines and rapidly accumulates charges for an amplifier in sensing to thereby increase the operational speed of the sensing circuit.Type: ApplicationFiled: October 20, 2010Publication date: May 5, 2011Applicant: ORISE TECHNOLOGY CO., LTD.Inventors: Hsin-Hao Wang, Yen-Lin Huang
-
Publication number: 20110090173Abstract: A sensing circuit of a capacitive touch panel includes an operation amplifier, a first switch, a second switch, first and second feedback capacitors, a third switch, a fourth switch, a fifth switch and a sixth switch. The operation amplifier includes a positive input terminal, a negative input terminal and an output terminal. A reference voltage is inputted into the positive input terminal. The first switch is connected between a receiving electrode and the negative input terminal. The second switch is connected between the negative input terminal and the output terminal. The third switch is connected to the negative input terminal and the first feedback capacitor. The fourth switch is connected to the first feedback capacitor and the output terminal. The fifth switch is connected to the negative input terminal and the second feedback capacitor. The sixth switch is connected to the second feedback capacitor and the output terminal.Type: ApplicationFiled: October 12, 2010Publication date: April 21, 2011Applicant: Orise Technology Co., Ltd.Inventors: Yen-Lin Huang, Hsin-Hao Wang