Patents by Inventor Sung-Han WU

Sung-Han WU 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: 11599221
    Abstract: There is provided a capacitive touch device including a touch panel and a control chip. The touch panel includes a detection electrode configured to form a self-capacitor. The control chip includes an emulation circuit and a subtraction circuit. The emulation circuit is configured to output a reference signal. The subtraction circuit is coupled to the emulation circuit and the detection electrode, subtracts the reference signal outputted by the emulation circuit from a detected signal outputted by the detection electrode to output a differential detected signal, and identifies a touch event according to an amplified differential detected signal so as to improve the touch sensitivity.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: March 7, 2023
    Assignee: PIXART IMAGING INC.
    Inventor: Sung-Han Wu
  • Patent number: 11592936
    Abstract: There is provided a capacitive touch device including a touch panel and a control chip. The touch panel includes detection electrodes configured to form self-capacitance and mutual-capacitance. The control chip includes an emulation circuit and a subtraction circuit. The emulation circuit is configured to output a reference signal. The subtraction circuit is coupled to the emulation circuit and the detection electrode, subtracts the reference signal outputted by the emulation circuit from a detected signal outputted by the detection electrodes to output a differential detected signal, and identifies a touch event according to the differential detected signal to reduce the power consumption for touch detection.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: February 28, 2023
    Assignee: PIXART IMAGING INC.
    Inventor: Sung-Han Wu
  • Publication number: 20220393681
    Abstract: There is provided a touch detection circuit including a charging circuit, a discharging circuit, a counter and a processor. The charging circuit charges a detection capacitor within a charging interval using different currents. The discharging circuit discharges the detection capacitor within a discharging interval using different currents. The counter counts the charging interval and the discharging interval. The processor subtracts a baseline time from a counted charging time and a counted discharging time to cancel the noise interference.
    Type: Application
    Filed: August 19, 2022
    Publication date: December 8, 2022
    Inventor: SUNG-HAN WU
  • Patent number: 11517246
    Abstract: Disclosed herein is a method for diagnosing a neurological disorder based on at least one magnetic resonance imaging (MRI) image. The method includes identifying brain image regions that contain a respective portion of diffusion index values of at least one diffusion index. For each of the brain image regions, a characteristic parameter based on the respective portion of the diffusion index values is calculated. a diagnoses is then made for the brain using one of predetermined categories of the neurological disorder by performing classification on a combination of the characteristic parameters via a classifier.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: December 6, 2022
    Assignees: Chang Gung Memorial Hospital, Linkou, Chang GungUniversitv, Change Gung Medical Foundation Chang Gung Memorial Hospital at Keelung
    Inventors: Jiun-Jie Wang, Yi-Hsin Weng, Shu-Hang Ng, Jur-Shan Cheng, Yi-Ming Wu, Yao-Liang Chen, Wey-Yil Lin, Chin-Song Lu, Wen-Chuin Hsu, Chia-Ling Chen, Yi-Chun Chen, Sung-Han Lin, Chih-Chien Tsai
  • Patent number: 11500504
    Abstract: A touch controlling apparatus to be coupled to a touch sensor array is disclosed. The apparatus comprises a memory circuit and a controlling circuit. The memory circuit is used for recording different calibration ratios associated with different process variations. The controlling circuit is coupled to the memory circuit, and is used for calibrating or adjusting sensitivities of a plurality of cells by respectively using the different calibration ratios to calibrate or adjust sensed capacitance changes of the plurality of cells to generate and output resultant capacitance changes of the plurality of cells.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: November 15, 2022
    Assignee: PixArt Imaging Inc.
    Inventor: Sung-Han Wu
  • Patent number: 11457837
    Abstract: A direction control apparatus with a sensor, a method for determining a driver status using the driving control apparatus, and a system for determining the driver status are provided. The direction control apparatus includes at least a pressure sensor to sense a plurality of pressure values applied to multiple positions of the direction control apparatus. When the pressure values are received by a controller of the apparatus, the driver status can be determined according to a change of pressure values over time, or further a change of the positions where pressure is applied. The system can connect with an autopilot system and an alarm system of a vehicle via the controller. Therefore, the system incorporates an autopilot system and issues an alarm when the driver status is determined to be abnormal.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: October 4, 2022
    Assignee: PIXART IMAGING INC.
    Inventor: Sung-Han Wu
  • Patent number: 11456740
    Abstract: There is provided a touch detection circuit including a charging circuit, a discharging circuit, a counter and a processor. The charging circuit charges a detection capacitor within a charging interval using different currents. The discharging circuit discharges the detection capacitor within a discharging interval using different currents. The counter counts the charging interval and the discharging interval. The processor subtracts a baseline time from a counted charging time and a counted discharging time to cancel the noise interference.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: September 27, 2022
    Assignee: PIXART IMAGING INC.
    Inventor: Sung-Han Wu
  • Patent number: 11411762
    Abstract: There is provided a smart home control system including a host, at least one sensor, a plurality of controlled devices and an informing device. The host identifies entering and leaving of family members according to detection results of the at least one sensor, and controls on/off of the controlled devices or informs a specific family member by the informing device to execute agenda according to a member ID of a family member who is identified to enter or leave the house. When identifying that one agendum is unable or forgotten to be executed by the specific family member, the host further rearranges the agendum.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: August 9, 2022
    Assignee: PIXART IMAGING INC.
    Inventors: Sung-Han Wu, Yi-Hsien Ko
  • Patent number: 11381418
    Abstract: There is provided a smart home control system including a host, at least one sensor, a plurality of controlled devices and an informing device. The host identifies entering and leaving of family members according to detection results of the at least one sensor, and controls on/off of the controlled devices or informs a specific family member by the informing device to execute agenda according to a member ID of a family member who is identified to enter or leave the house.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: July 5, 2022
    Assignee: PIXART IMAGING INC.
    Inventors: Sung-Han Wu, Yi-Hsien Ko
  • Patent number: 11334042
    Abstract: There is provided a smart home control system including a host, at least one sensor, a plurality of controlled devices and an informing device. The host identifies entering and leaving of family members according to detection results of the at least one sensor, and controls on/off of the controlled devices or informs a specific family member by the informing device to execute agenda according to a member ID of a family member who is identified to enter or leave the house.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: May 17, 2022
    Assignee: PIXART IMAGING INC.
    Inventors: Sung-Han Wu, Yi-Hsien Ko
  • Publication number: 20220021388
    Abstract: There is provided a touch detection circuit including a charging circuit, a discharging circuit, a counter and a processor. The charging circuit charges a detection capacitor within a charging interval using different currents. The discharging circuit discharges the detection capacitor within a discharging interval using different currents. The counter counts the charging interval and the discharging interval. The processor subtracts a baseline time from a counted charging time and a counted discharging time to cancel the noise interference.
    Type: Application
    Filed: July 16, 2020
    Publication date: January 20, 2022
    Inventor: SUNG-HAN WU
  • Patent number: 11226705
    Abstract: A capacitive touch system including a drive end, a capacitive touch sensing device and a detection end is provided. The drive end inputs a modulated drive signal into an input channel of the capacitive sensing device, wherein the modulated drive signal includes a plurality of driving frequencies. The detection end detects a detection signal of an output channel of the capacitive sensing device and generates a two-dimensional detection vector corresponding to each of the driving frequencies.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: January 18, 2022
    Assignee: PIXART IMAGING INC.
    Inventor: Sung-Han Wu
  • Publication number: 20210286462
    Abstract: A touch keyboard includes a key set, a capacitive touch sensor, and a pressure sensing circuit. The capacitive touch sensor is coupled to the key set and is configured to generate a sensing capacitance. The pressure sensing circuit is coupled to the capacitive touch sensor, configured to generate a pressure sensing value, and specifically includes a cancellation circuit. The cancellation circuit is configured to generate a cancellation signal, and enable a capacitor voltage converter in the pressure sensing circuit to output an analog voltage signal according to the sensing signal being added with the cancellation signal, and the content of the sensing signal is the sensing capacitance generated by the capacitive touch sensor.
    Type: Application
    Filed: October 20, 2020
    Publication date: September 16, 2021
    Inventors: SUNG-HAN WU, CHE-CHIA HSU
  • Publication number: 20210152387
    Abstract: There is provided a smart home control system including a host, at least one sensor, a plurality of controlled devices and an informing device. The host identifies entering and leaving of family members according to detection results of the at least one sensor, and controls on/off of the controlled devices or informs a specific family member by the informing device to execute agenda according to a member ID of a family member who is identified to enter or leave the house.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 20, 2021
    Inventors: Sung-Han WU, Yi-Hsien KO
  • Patent number: 10972099
    Abstract: A capacitive touch system including a drive end, a capacitive touch sensing device and a detection end is provided. The drive end inputs a modulated drive signal into an input channel of the capacitive sensing device, wherein the modulated drive signal includes a plurality of driving frequencies. The detection end detects a detection signal of an output channel of the capacitive sensing device and generates a two-dimensional detection vector corresponding to each of the driving frequencies. The capacitive touch system includes a touch panel or a touch keyboard.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: April 6, 2021
    Assignee: PIXART IMAGING INC.
    Inventors: Sung-Han Wu, Che-Chia Hsu, Chia-Yi Lee
  • Patent number: 10962426
    Abstract: The present disclosure illustrates a calibration circuit for a pressure sensing device. The calibration circuit, via at least one passive component installed in the pressure sensing device, obtains a calibration gain factor of at least one converter also installed in the pressure sensing device, and when the pressure sensing device is in a regular operating mode, the calibration gain factor can be used to calibrate the output of the converter, so that a sensing signal inputted into the pressure sensing device can be correctly converted to a relevant pressure value.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: March 30, 2021
    Assignee: PIXART IMAGING INC.
    Inventor: Sung-Han Wu
  • Publication number: 20210014075
    Abstract: There is provided a smart home control system including a host, at least one sensor, a plurality of controlled devices and an informing device. The host identifies entering and leaving of family members according to detection results of the at least one sensor, and controls on/off of the controlled devices or informs a specific family member by the informing device to execute agenda according to a member ID of a family member who is identified to enter or leave the house. When identifying that one agendum is unable or forgotten to be executed by the specific family member, the host further rearranges the agendum.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 14, 2021
    Inventors: Sung-Han WU, Yi-Hsien KO
  • Publication number: 20200409506
    Abstract: There is provided a capacitive touch device including a touch panel and a control chip. The touch panel includes detection electrodes configured to form self-capacitance and mutual-capacitance. The control chip includes an emulation circuit and a subtraction circuit. The emulation circuit is configured to output a reference signal. The subtraction circuit is coupled to the emulation circuit and the detection electrode, subtracts the reference signal outputted by the emulation circuit from a detected signal outputted by the detection electrodes to output a differential detected signal, and identifies a touch event according to the differential detected signal to reduce the power consumption for touch detection.
    Type: Application
    Filed: September 15, 2020
    Publication date: December 31, 2020
    Inventor: SUNG-HAN WU
  • Publication number: 20200371623
    Abstract: There is provided a capacitive touch device including a touch panel and a control chip. The touch panel includes a detection electrode configured to form a self-capacitor. The control chip includes an emulation circuit and a subtraction circuit. The emulation circuit is configured to output a reference signal. The subtraction circuit is coupled to the emulation circuit and the detection electrode, subtracts the reference signal outputted by the emulation circuit from a detected signal outputted by the detection electrode to output a differential detected signal, and identifies a touch event according to an amplified differential detected signal so as to improve the touch sensitivity.
    Type: Application
    Filed: August 12, 2020
    Publication date: November 26, 2020
    Inventor: SUNG-HAN WU
  • Publication number: 20200372992
    Abstract: There is provided a smart control system including a host, at least one sensor and an informing device. The host identifies the activity of a specific member according to the detection result of the at least one sensor, and informs the specific member to take medicine on time or avoid eating specific ingredients using the informing device.
    Type: Application
    Filed: August 14, 2020
    Publication date: November 26, 2020
    Inventors: SUNG-HAN WU, YI-HSIEN KO