Patents by Inventor Kuei-Hsing Liu

Kuei-Hsing 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: 7940019
    Abstract: A control module adapted to brush and brushless motors essentially applies a magnetic sensor to generate detecting signals in response to the status of the motor and deliver those signals to a control unit. The control unit further converts the signals into discrete diverting signals for driving the rotating direction, phase commands for controlling the motor phase, and a pulse width modulation (PWM) for adjusting the motor speed. A phase refining circuit thence receives those transformed signals and confirms merely a selected phase command attendant with the diverting and PWM signals for assisting a stable operation of the motor. Therefore, such control module not only applies to different types of motors but uses the separate transmissions of the signals responsible for designated instructions to attain facile controls and appropriate adjustments to the errors of the motor phase or motor velocity and efficiently decrease the occurrence of breaking the motor.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: May 10, 2011
    Assignee: STL Technology Co., Ltd.
    Inventors: Shing-Jung Wu, Kuei-Hsing Liu
  • Publication number: 20100148709
    Abstract: A control module adapted to brush and brushless motors essentially applies a magnetic sensor to generate detecting signals in response to the status of the motor and deliver those signals to a control unit. The control unit further converts the signals into discrete diverting signals for driving the rotating direction, phase commands for controlling the motor phase, and a pulse width modulation (PWM) for adjusting the motor speed. A phase refining circuit thence receives those transformed signals and confirms merely a selected phase command attendant with the diverting and PWM signals for assisting a stable operation of the motor. Therefore, such control module not only applies to different types of motors but uses the separate transmissions of the signals responsible for designated instructions to attain facile controls and appropriate adjustments to the errors of the motor phase or motor velocity and efficiently decrease the occurrence of breaking the motor.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 17, 2010
    Applicant: STL TECHNOLOGY CO., LTD.
    Inventors: SHING-JUNG WU, KUEI-HSING LIU