Patents by Inventor HSIAO HSI PAN

HSIAO HSI PAN 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).

  • Electrostatic force generator and force measurement system and accelerometer having the same
    Patent number: 8800371
    Abstract: An electrostatic force generator is disclosed. The electrostatic force generator includes an RF AC voltage source, a capacitive module, a resonant capacitive-inductive bridge (CIB) module, a lock-in amplifier module, and a proportional-integral-derivative (PID) controller. The resonant capacitive-inductive bridge module converts the differential capacitance to a differential signal. The differential signal from the resonant capacitive-inductive bridge module is demodulated at the RF excitation frequency by the lock-in amplifier module. The PID controller receives the output signal from the lock-in amplifier module and generates two audio frequency AC signals to generate a compensation electrostatic force and maintain the capacitance balance inside the capacitive module.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: August 12, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Sheng Jui Chen, Hsiao Hsi Pan
  • ELECTROSTATIC FORCE GENERATOR AND FORCE MEASUREMENT SYSTEM AND ACCELEROMETER HAVING THE SAME
    Publication number: 20130233077
    Abstract: An electrostatic force generator is disclosed. The electrostatic force generator includes an RF AC voltage source, a capacitive module, a resonant capacitive-inductive bridge (CIB) module, a lock-in amplifier module, and a proportional-integral-derivative (PID) controller. The resonant capacitive-inductive bridge module converts the differential capacitance to a differential signal. The differential signal from the resonant capacitive-inductive bridge module is demodulated at the RF excitation frequency by the lock-in amplifier module. The PID controller receives the output signal from the lock-in amplifier module and generates two audio frequency AC signals to generate a compensation electrostatic force and maintain the capacitance balance inside the capacitive module.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 12, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: SHENG JUI CHEN, HSIAO HSI PAN