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: 9547396
    Abstract: 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: Grant
    Filed: May 28, 2014
    Date of Patent: January 17, 2017
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Hsin-Hao Wang, Yen-Lin Huang
  • Patent number: 9195355
    Abstract: 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: Grant
    Filed: June 18, 2013
    Date of Patent: November 24, 2015
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Hsin-Hao Wang, Chih-Hung Kung, Yen-Lin Huang
  • Patent number: 9170681
    Abstract: 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: Grant
    Filed: October 30, 2013
    Date of Patent: October 27, 2015
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Hsin-Mao Huang, Chih-Hung Kung, Hsin-Hao Wang
  • Patent number: 8928622
    Abstract: 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: Grant
    Filed: December 13, 2011
    Date of Patent: January 6, 2015
    Assignee: Orise Technology Co., Ltd.
    Inventors: Hsin-Hao Wang, Yen-Lin Huang
  • Publication number: 20140354590
    Abstract: 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: Application
    Filed: May 28, 2014
    Publication date: December 4, 2014
    Applicant: Orise Technology Co., Ltd.
    Inventors: Hsin-Hao WANG, Yen-Lin HUANG
  • Publication number: 20140132556
    Abstract: 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: Application
    Filed: October 30, 2013
    Publication date: May 15, 2014
    Applicant: ORISE TECHNOLOGY CO., LTD.
    Inventors: Hsin-Mao HUANG, Chih-Hung KUNG, Hsin-Hao WANG
  • Patent number: 8681110
    Abstract: 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: Grant
    Filed: October 12, 2010
    Date of Patent: March 25, 2014
    Assignee: Orise Technology Co., Ltd.
    Inventors: Yen-Lin Huang, Hsin-Hao Wang
  • Publication number: 20130342502
    Abstract: 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: Application
    Filed: June 18, 2013
    Publication date: December 26, 2013
    Inventors: Hsin-Hao WANG, Chih-Hung KUNG, Yen-Lin HUANG
  • Patent number: 8514191
    Abstract: 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: Grant
    Filed: October 20, 2010
    Date of Patent: August 20, 2013
    Assignee: Orise Technology Co., Ltd.
    Inventors: Hsin-Hao Wang, Yen-Lin Huang
  • Patent number: 8421774
    Abstract: 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: Grant
    Filed: December 23, 2010
    Date of Patent: April 16, 2013
    Assignee: Orise Technology Co., Ltd.
    Inventors: Hsin-Hao Wang, Yen-Lin Huang
  • Publication number: 20120194469
    Abstract: 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: Application
    Filed: December 13, 2011
    Publication date: August 2, 2012
    Applicant: ORISE TECHNOLOGY CO., LTD.
    Inventors: Hsin-Hao WANG, Yen-Lin HUANG
  • Publication number: 20110157081
    Abstract: 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: Application
    Filed: December 23, 2010
    Publication date: June 30, 2011
    Applicant: Orise Technology Co., Ltd.
    Inventors: Hsin-Hao Wang, Yen-Lin Huang
  • Publication number: 20110102061
    Abstract: 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: Application
    Filed: October 20, 2010
    Publication date: May 5, 2011
    Applicant: ORISE TECHNOLOGY CO., LTD.
    Inventors: Hsin-Hao Wang, Yen-Lin Huang
  • Publication number: 20110090173
    Abstract: 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: Application
    Filed: October 12, 2010
    Publication date: April 21, 2011
    Applicant: Orise Technology Co., Ltd.
    Inventors: Yen-Lin Huang, Hsin-Hao Wang