Patents by Inventor Ching-Hsung Wang

Ching-Hsung 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: 11960681
    Abstract: A method of capacitive sensing includes obtaining a capacitive touch profile from multiple receiver electrodes disposed in a sensing region of an input device and obtaining an active pen profile, different from the capacitive touch profile, from the multiple receiver electrodes. The method also includes adjusting, using the capacitive touch profile, the active pen profile to obtain a corrected active pen profile and determining a position of an active pen in the sensing region, using the corrected active pen profile.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: April 16, 2024
    Assignee: Synaptics Incorporated
    Inventors: Tom Vandermeijden, Guozhong Shen, Ching-Hsung Wang
  • Patent number: 11868555
    Abstract: A processing system configured to detect an input object proximate the processing system. The processing system includes sensor circuitry configured to make a determination, when the processing system is in a low ground mass (LGM) state, that a large object is proximate to sensor electrodes of the processing system. The sensor circuitry is further configured, in response to a determination that a large object is proximate the sensor electrodes while the processing system is in the LGM state, to drive a first group of sensor electrodes with one of an inverted signal or a non-inverted signal and drive a second group of sensor electrodes with a static DC voltage.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: January 9, 2024
    Assignee: Synaptics Incorporated
    Inventors: Kirk Hargreaves, Guozhong Shen, Ching-Hsung Wang, Guan-Hua Cao
  • Publication number: 20240004498
    Abstract: A method is provided. The method comprises: providing, by a control system of an input device, one or more first beacon signals to an input object; based, at least in part, on force data from the input object, detecting, by the control system, noise interference associated with providing at least one of the one or more first beacon signals to the input object; based, at least in part, on detecting the noise interference, altering, by the control system, a timing schedule for providing one or more subsequent beacon signals; and providing, by the control system, the one or more subsequent beacon signals to the input object based, at least in part, on the timing schedule.
    Type: Application
    Filed: June 30, 2022
    Publication date: January 4, 2024
    Inventors: Tom Vandermeijden, Ching-Hsung Wang
  • Publication number: 20230176679
    Abstract: A processing system configured to detect an input object proximate the processing system. The processing system includes sensor circuitry configured to make a determination, when the processing system is in a low ground mass (LGM) state, that a large object is proximate to sensor electrodes of the processing system. The sensor circuitry is further configured, in response to a determination that a large object is proximate the sensor electrodes while the processing system is in the LGM state, to drive a first group of sensor electrodes with one of an inverted signal or a non-inverted signal and drive a second group of sensor electrodes with a static DC voltage.
    Type: Application
    Filed: January 31, 2023
    Publication date: June 8, 2023
    Applicant: Synaptics Incorporated
    Inventors: Kirk Hargreaves, Guozhong Shen, Ching-Hsung Wang, Guan-Hua Cao
  • Patent number: 11592925
    Abstract: A processing system configured to detect an input object proximate the processing system. The processing system includes sensor circuitry configured to make a determination, when the processing system is in a low ground mass (LGM) state, that a large object is proximate to sensor electrodes of the processing system. The sensor circuitry is further configured, in response to a determination that a large object is proximate the sensor electrodes while the processing system is in the LGM state, to drive a first group of sensor electrodes with one of an inverted signal or a non-inverted signal and drive a second group of sensor electrodes with a static DC voltage.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: February 28, 2023
    Assignee: Synaptics Incorporated
    Inventors: Kirk Hargreaves, Guozhong Shen, Ching-Hsung Wang, Guan-Hua Cao
  • Publication number: 20230027365
    Abstract: A method of capacitive sensing includes obtaining a capacitive touch profile from multiple receiver electrodes disposed in a sensing region of an input device and obtaining an active pen profile, different from the capacitive touch profile, from the multiple receiver electrodes. The method also includes adjusting, using the capacitive touch profile, the active pen profile to obtain a corrected active pen profile and determining a position of an active pen in the sensing region, using the corrected active pen profile.
    Type: Application
    Filed: May 20, 2022
    Publication date: January 26, 2023
    Applicant: Synaptics Incorporated
    Inventors: Tom Vandermeijden, Guozhong Shen, Ching-Hsung Wang
  • Publication number: 20220404940
    Abstract: A capacitive input device includes sensing electrodes configured to form a capacitive coupling with auxiliary device electrodes of an attached auxiliary device. The auxiliary device electrodes transmit data signals to the sensing electrodes via the capacitive coupling. The capacitive input device also includes processing circuitry configured to decode the data signals received via the capacitive coupling to obtain decoded data.
    Type: Application
    Filed: May 6, 2022
    Publication date: December 22, 2022
    Applicant: Synaptics Incorporated
    Inventors: Tom Vandermeijden, Samuel Toba, Ching-Hsung Wang
  • Patent number: 8384732
    Abstract: A method for adjusting color saturation is adapted for color adjustment of a pixel in a color space. The method includes: determining a color cube in the color space; selecting one from a plurality of diagonals of the color cube as a primary diagonal, and setting the primary diagonal at a vertical axis of the color space; determining a hue azimuth angle and a height in the color cube desired by the pixel; determining a reference point at an outermost periphery of the color cube corresponding to the azimuth angle, and obtaining a reference height and a reference horizontal distance of the reference point distant from the primary diagonal; and obtaining a color saturation value of the pixel by multiplying the reference horizontal distance with a ratio between the reference height and the height of the pixel.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: February 26, 2013
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chun-Hung Lien, Dong-Yang Lin, Ching-Hsung Wang
  • Patent number: 8174599
    Abstract: An image pickup apparatus which can photograph a high-definition image and a moving image of lower resolution at high quality and an image pickup system which uses the image pickup apparatus are provided. Unit pixel groups each of which comprises plural pixels including photoelectric conversion units and transfer transistors for transferring signal charges from the photoelectric conversion units, an amplification transistor common to the plural pixels, and the like are arranged in row and column directions. With respect to the plural unit pixel groups mutually adjacent in the row direction, control lines for controlling the transfer transistors respectively corresponding to the adjacent two photoelectric conversion units are alternately connected to an odd row and an even row in the row direction.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: May 8, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukihiro Kuroda, Chun-Hung Lien, Dong-Yang Lin, Ching-Hsung Wang