Patents by Inventor CHIH-HUAN LIU

CHIH-HUAN LIU 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: 12115967
    Abstract: The disclosure provides a power control device, which comprises a bleeder circuit forming a first discharging path and an aux low-voltage (LV) power supply unit forming a second discharging path. The bleeder circuit is connected with a voltage-regulating capacitor stably maintaining the high-voltage (HV) level from a HV battery. The aux LV power supply unit is connected with the bleeder circuit and the voltage-regulating capacitor in parallel. The aux LV power supply unit provides an aux LV level to the driver, when the power system operates abnormally, the HV level is discharged through the first and second discharging path and/or a third discharging path formed by a driver and a motor.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: October 15, 2024
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Chiang Wu, Uma Sankar Rout, Bang-Yuan Liu, Yun-Huan Li
  • Publication number: 20240340553
    Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first circuit, a second circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first circuit. Within a second interval, the photodiode detects second light energy to be stored in the second circuit. Within an operation interval, the first circuit outputs a first detection signal according to the first light energy and outputs a second detection signal according to the second light energy for being calculated by the operation circuit.
    Type: Application
    Filed: June 19, 2024
    Publication date: October 10, 2024
    Inventors: REN-CHIEH LIU, CHIH-HUAN WU, YI-HSIEN KO, HAN-CHI LIU
  • Patent number: 12058467
    Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.
    Type: Grant
    Filed: September 11, 2023
    Date of Patent: August 6, 2024
    Inventors: Ren-Chieh Liu, Chih-Huan Wu, Yi-Hsien Ko, Han-Chi Liu
  • Patent number: 10398357
    Abstract: The present invention provides smart bed systems and the operating methods of the smart bed systems. The smart bed systems detect physiological data and sleeping quality with optical fibers which with strong resistance to electromagnetic interference. The smart bed systems do not require the users to wear any wearable devices. The smart bed systems also provide several functions, such as automatic night light, vibration-based alarm, anti-snoring assistance, and scenario-based appliance controls.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: September 3, 2019
    Assignees: BEDDING WORLD CO., LTD., HUIJIA HEALTH LIFE TECHNOLOGY CO., LTD.
    Inventors: Ying-Chieh Chen, Shu-Chen Yang, Chih-Huan Liu, Ta-Hsiang Chen, Hsing-Hung Chen
  • Publication number: 20180168485
    Abstract: The present invention provides smart bed systems and the operating methods of the smart bed systems. The smart bed systems detect physiological data and sleeping quality with optical fibers which with strong resistance to electromagnetic interference. The smart bed systems do not require the users to wear any wearable devices. The smart bed systems also provide several functions, such as automatic night light, vibration-based alarm, anti-snoring assistance, and scenario-based appliance controls.
    Type: Application
    Filed: September 11, 2017
    Publication date: June 21, 2018
    Inventors: YING-CHIEH CHEN, SHU-CHEN YANG, CHIH-HUAN LIU, TA-HSIANG CHEN, HSING-HUNG CHEN