Patents by Inventor Jo-Hua WU

Jo-Hua 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: 11583197
    Abstract: A method for detecting cardiac arrhythmia based on a photoplethysmographic (PPG) signal is provided. The method includes: receiving a PPG signal and a motion signal corresponding to a motion made by a user; extracting PPG signal segments and motion signal segments corresponding to a time period from the PPG signal and the motion signal, respectively, at every time period; filtering out motion artifact noise in the PPG signal segments according to the PPG signal segments and the motion signal segments, and converting the PPG signal segments and the motion signal segments into PPG spectrum diagrams and motion spectrum diagrams, respectively; obtaining an estimated heart rate according to the PPG spectrum diagrams and the motion spectrum diagrams; and determining whether cardiac arrhythmia is present based on the filtered PPG signal segments and the estimated heart rate.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: February 21, 2023
    Assignee: ACER INCORPORATED
    Inventors: Jo-Hua Wu, Hsien-Yang Chiang, Yu-Chun Wu, Pin-Cyuan Lin, Ke-Han Pan, Yueh-Yarng Tsai
  • Patent number: 10804966
    Abstract: A data storage device includes a power line communication (PLC) circuit and a storage controller. The PLC circuit is coupled to a power line. The storage controller is coupled to the PLC circuit. The storage controller is configured to access a plurality of memory block. The PLC circuit is configured to carry at least one signal outputted from the storage controller on the power line, in order to transmit the at least one signal to an external device such that an operational state of the data storage device can be debugged/monitored.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: October 13, 2020
    Assignee: RAYMX MICROELECTRONICS, CORP.
    Inventors: Jo-Hua Wu, Cheng-Yu Chen
  • Patent number: 10750635
    Abstract: A heat dissipation device control method for dissipating heat from an electronic element without self-heat-dissipation function in an electronic device. The method comprises: detecting a first temperature of the electronic element; and controlling the fan of the peripheral element located around the electronic element when the first temperature exceeds the first upper temperature threshold to dissipate the heat from the electronic element.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: August 18, 2020
    Assignee: Realtek Semiconductor Corporation
    Inventors: Jo-Hua Wu, Cheng-Yu Chen
  • Publication number: 20200178821
    Abstract: A method for detecting cardiac arrhythmia based on a photoplethysmographic (PPG) signal is provided. The method includes: receiving a PPG signal and a motion signal corresponding to a motion made by a user; extracting PPG signal segments and motion signal segments corresponding to a time period from the PPG signal and the motion signal, respectively, at every time period; filtering out motion artifact noise in the PPG signal segments according to the PPG signal segments and the motion signal segments, and converting the PPG signal segments and the motion signal segments into PPG spectrum diagrams and motion spectrum diagrams, respectively; obtaining an estimated heart rate according to the PPG spectrum diagrams and the motion spectrum diagrams; and determining whether cardiac arrhythmia is present based on the filtered PPG signal segments and the estimated heart rate.
    Type: Application
    Filed: September 20, 2019
    Publication date: June 11, 2020
    Inventors: Jo-Hua WU, Hsien-Yang CHIANG, Yu-Chun WU, Pin-Cyuan LIN, Ke-Han PAN, Yueh-Yarng TSAI
  • Publication number: 20200177236
    Abstract: A data storage device includes a power line communication (PLC) circuit and a storage controller. The PLC circuit is coupled to a power line. The storage controller is coupled to the PLC circuit. The storage controller is configured to access a plurality of memory block. The PLC circuit is configured to carry at least one signal outputted from the storage controller on the power line, in order to transmit the at least one signal to an external device such that an operational state of the data storage device can be debugged/monitored.
    Type: Application
    Filed: February 7, 2020
    Publication date: June 4, 2020
    Inventors: Jo-Hua WU, Cheng-Yu CHEN
  • Patent number: 10672499
    Abstract: A flash memory controller is suitable for a NAND flash memory and a voltage supply circuit. The voltage supply circuit supplies a current to the flash memory. The flash memory controller includes a flash control circuit, a current sensing circuit, and a processor. The flash control circuit is configured to control an operation of the flash memory. The current sensing circuit is configured to measure the current consumed by the flash memory during its operation, and output a current value. The processor is configured to output a control signal based on the current value. Therefore, the flash memory controller can instantly obtain a current value consumed during the operation of flash memory, and determine, based on the current value, whether the flash memory runs normally. A storage apparatus having the flash memory controller can instantly determine whether the flash memory runs normally.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: June 2, 2020
    Assignee: RAYMX MICROELECTRONICS CORP.
    Inventors: Shih-Fu Huang, Shu-Min Lin, Jo-Hua Wu, Cheng-Yu Chen
  • Patent number: 10594366
    Abstract: A data storage device includes a power line communication (PLC) circuit and a storage controller. The PLC circuit is coupled to a power line. The storage controller is coupled to the PLC circuit. The storage controller is configured to access a plurality of memory block. The PLC circuit is configured to carry at least one signal outputted from the storage controller on the power line, in order to transmit the at least one signal to an external device such that an operational state of the data storage device can be debugged/monitored.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: March 17, 2020
    Assignee: RAYMX MICROELECTRONICS, CORP.
    Inventors: Jo-Hua Wu, Cheng-Yu Chen
  • Publication number: 20200075107
    Abstract: A flash memory controller is suitable for a NAND flash memory and a voltage supply circuit. The voltage supply circuit supplies a current to the flash memory. The flash memory controller includes a flash control circuit, a current sensing circuit, and a processor. The flash control circuit is configured to control an operation of the flash memory. The current sensing circuit is configured to measure the current consumed by the flash memory during its operation, and output a current value. The processor is configured to output a control signal based on the current value. Therefore, the flash memory controller can instantly obtain a current value consumed during the operation of flash memory, and determine, based on the current value, whether the flash memory runs normally. A storage apparatus having the flash memory controller can instantly determine whether the flash memory runs normally.
    Type: Application
    Filed: January 10, 2019
    Publication date: March 5, 2020
    Inventors: Shih-Fu Huang, Shu-Min Lin, Jo-Hua Wu, Cheng-Yu Chen
  • Publication number: 20190334579
    Abstract: A data storage device includes a power line communication (PLC) circuit and a storage controller. The PLC circuit is coupled to a power line. The storage controller is coupled to the PLC circuit. The storage controller is configured to access a plurality of memory block. The PLC circuit is configured to carry at least one signal outputted from the storage controller on the power line, in order to transmit the at least one signal to an external device such that an operational state of the data storage device can be debugged/monitored.
    Type: Application
    Filed: March 28, 2019
    Publication date: October 31, 2019
    Inventors: Jo-Hua WU, Cheng-Yu CHEN
  • Publication number: 20180332733
    Abstract: A heat dissipation device control method for dissipating heat from an electronic element without self-heat-dissipation function in an electronic device. The method comprises: detecting a first temperature of the electronic element; and controlling the fan of the peripheral element located around the electronic element when the first temperature exceeds the first upper temperature threshold to dissipate the heat from the electronic element.
    Type: Application
    Filed: March 15, 2018
    Publication date: November 15, 2018
    Inventors: Jo-Hua WU, Cheng-Yu CHEN