Patents by Inventor Yu-Chu Tsai

Yu-Chu Tsai 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).

  • Publication number: 20240342229
    Abstract: The present disclosure relates to an anti-fatigue Lactobacillus composition. The anti-fatigue Lactobacillus composition, which includes at least one of Lactobacillus brevis GKEX, Lactobacillus plantarum GKK1 and Lactobacillus johnsonii GKJ2 as an active ingredient, administered to a healthy subject for a continuous period of time, can significantly improve fatigue-related biochemical indices and prolong aerobic exercise time to exhaustion, and thus can be used as an active ingredient for preparation of various compositions for anti-fatigue and/or improving athletic ability.
    Type: Application
    Filed: June 27, 2024
    Publication date: October 17, 2024
    Inventors: Chin-Chu CHEN, Yen-Lien CHEN, Shih-Wei LIN, You-Shan TSAI, Tzu-Chun LIN, Ci-Sian WANG, Yu-Hsin HOU, Yang-Tzu SHIH, Ching-Wen LIN, Ya-Jyun CHEN, Jia-Lin JIANG, Zi-He WU, Yen-Po CHEN
  • Patent number: 11258360
    Abstract: A switched-capacitor power converting apparatus and an operating method thereof are disclosed. The switched-capacitor power converting apparatus includes an output stage, a determination circuit, a switch control circuit and a voltage regulation circuit. The output stage has an output terminal. The determination circuit is coupled to the output terminal, and generates a mode switching signal according to an output voltage of the output terminal and a reference voltage. The switch control circuit is coupled to the output stage and the determination circuit and controls the output stage to operate in a default voltage mode or an operation mode according to the mode switching signal. The voltage regulation circuit is coupled to the output terminal and the determination circuit and maintains the output voltage of the output terminal at a default value in the default voltage mode.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: February 22, 2022
    Assignee: UPI SEMICONDUCTOR CORP.
    Inventor: Yu-Chu Tsai
  • Publication number: 20200366194
    Abstract: A switched-capacitor power converting apparatus and an operating method thereof are disclosed. The switched-capacitor power converting apparatus includes an output stage, a determination circuit, a switch control circuit and a voltage regulation circuit. The output stage has an output terminal. The determination circuit is coupled to the output terminal, and generates a mode switching signal according to an output voltage of the output terminal and a reference voltage. The switch control circuit is coupled to the output stage and the determination circuit and controls the output stage to operate in a default voltage mode or an operation mode according to the mode switching signal. The voltage regulation circuit is coupled to the output terminal and the determination circuit and maintains the output voltage of the output terminal at a default value in the default voltage mode.
    Type: Application
    Filed: March 31, 2020
    Publication date: November 19, 2020
    Inventor: YU-CHU TSAI
  • Patent number: 10601321
    Abstract: A DC-DC converting controller, coupled to an output stage including a phase node and an operation switch coupled between the phase node and a ground voltage, includes a pulse-width modulation (PWM) unit, a zero-level comparator and a threshold voltage generation unit. The PWM unit, coupled to the output stage, provides the PWM signal to the output stage for controlling the operation switch. The zero-level comparator has a first input terminal, a second input terminal and an output terminal. The first input terminal is coupled to the phase node. The output terminal, coupled to the PWM unit, provides a zero-current voltage to adjust the PWM signal. The threshold voltage generation unit, coupled to the phase node and zero-level comparator, provides the threshold voltage to the second input terminal. The threshold voltage generation unit dynamically adjusts threshold voltage according to a default voltage and the phase voltage on the phase node.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: March 24, 2020
    Assignee: UPI SEMICONDUCTOR CORP.
    Inventor: Yu-Chu Tsai
  • Publication number: 20190296640
    Abstract: A DC-DC converting controller, coupled to an output stage including a phase node and an operation switch coupled between the phase node and a ground voltage, includes a pulse-width modulation (PWM) unit, a zero-level comparator and a threshold voltage generation unit. The PWM unit, coupled to the output stage, provides the PWM signal to the output stage for controlling the operation switch. The zero-level comparator has a first input terminal, a second input terminal and an output terminal. The first input terminal is coupled to the phase node. The output terminal, coupled to the PWM unit, provides a zero-current voltage to adjust the PWM signal. The threshold voltage generation unit, coupled to the phase node and zero-level comparator, provides the threshold voltage to the second input terminal. The threshold voltage generation unit dynamically adjusts threshold voltage according to a default voltage and the phase voltage on the phase node.
    Type: Application
    Filed: February 26, 2019
    Publication date: September 26, 2019
    Inventor: YU-CHU TSAI
  • Patent number: 5969278
    Abstract: A beverage cup includes a cup body, a base located on the cup body and having a circuit board and a speaker, and a cap closing on the base. The cap has a short straw portion protruding out and connected to an upper connect post aligned with a lower connect post in the base and connected to a long tube in the cup body. The circuit board is connected to two lead wires extending into the upper connect post and having their ends that are spaced apart a little in the passageway of the upper connect post. The two ends are connected electrically and power the circuit board to operate the speaker to when drink in the cup body is sucked out through the short straw portion.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: October 19, 1999
    Inventor: Yu-Chu Tsai