Patents by Inventor Wen-Hsin Hsiao

Wen-Hsin Hsiao 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).

  • Piezoelectric transducer apparatus having a modal-shaped electrode
    Patent number: 6597085
    Abstract: An innovative piezoelectric transducer apparatus having a piezoelectric workpiece with a modal-shaped actuator electrode for converting an input energy of one form into an output energy of another form. The piezoelectric workpiece comprises an actuator section and a sensor section. The actuator section is formed in the piezoelectric workpiece and has a modal-shaped electrode for exciting the piezoelectric workpiece into mechanical vibration upon driven by the input energy. The sensor section is also formed in the piezoelectric workpiece and has a sensor electrode for delivering the output energy to an external load of the apparatus by picking up the energy generated by the excitation. The modal-shaped actuator electrode has a shape function defined by the mathematical solution function of the governing equation of the piezoelectric workpiece under the condition that the piezoelectric workpiece being vibrating in a selected resonant mode.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: July 22, 2003
    Inventors: Chih-Kung Lee, Wen-Hsin Hsiao, Yu-Hsiang Hsu, Chih-Wen Hsieh
  • Piezoelectric transducer apparatus having a modal-shaped electrode
    Publication number: 20030067244
    Abstract: An innovative piezoelectric transducer apparatus having a piezoelectric workpiece with a modal-shaped actuator electrode for converting an input energy of one form into an output energy of another form. The piezoelectric workpiece comprises an actuator section and a sensor section. The actuator section is formed in the piezoelectric workpiece and has a modal-shaped electrode for exciting the piezoelectric workpiece into mechanical vibration upon driven by the input energy. The sensor section is also formed in the piezoelectric workpiece and has a sensor electrode for delivering the output energy to an external load of the apparatus by picking up the energy generated by the excitation. The modal-shaped actuator electrode has a shape function defined by the mathematical solution function of the governing equation of the piezoelectric workpiece under the condition that the piezoelectric workpiece being vibrating in a selected resonant mode.
    Type: Application
    Filed: July 30, 2001
    Publication date: April 10, 2003
    Inventors: Chih-Kung Lee, Wen-Hsin Hsiao, Yu-Hsiang Hsu, Chih-Wen Hsieh
  • Device and method for measuring vibration
    Patent number: 6510738
    Abstract: The present invention discloses a vibration measuring device for measuring a vibration of an object. Such device includes a sensing body generating a dynamic information in response to the vibration, and a piezoelectric sensing layer disposed on the sensing body to construct a sensor and formed in a distributed mode to measure the dynamic information in a selected specific bandwidth. The present invention also discloses a vibration measuring method.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: January 28, 2003
    Assignee: National Science Council
    Inventors: Chih-Kung Lee, Chih-Ting Lin, Wen-Hsin Hsiao, Hsueh-Ching Shih