Patents by Inventor Piao Jung Liu

Piao Jung 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).

  • Apparatus and Method for Simulating a Target
    Publication number: 20130191102
    Abstract: An apparatus for simulating a target at a variable distance and speed includes a transceiver, isolators, a signal delayer, a wave mixer and a signal attenuator. The isolators receive a signal from the transceiver. The signal delayer receives the signal from the isolators and accordingly simulates a delay value at a distance. The wave mixer is connected to the signal delayer. A Doppler shift is introduced into the apparatus through the wave mixer. The signal attenuator is connected to the isolators and the wave mixer for producing an adjustable attenuated signal corresponding to a variable distance.
    Type: Application
    Filed: April 2, 2012
    Publication date: July 25, 2013
    Applicant: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense
    Inventors: Chi-Ho Chang, Chih-Yuan Wu, Ming-Hung Hsu, Piao Jung Liu