Patents by Inventor Hui-Chih Hsu

Hui-Chih Hsu 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).

  • Frequency modulation continuous wave radar level meter and signal-tracking and phase-locking method for the same
    Patent number: 9341509
    Abstract: An FMCW radar level meter has an RF signal processing module, an intermediate frequency (IF) signal processing module, and a computation and display module. A signal generator of the RF signal processing module generates a first RF signal, which is radiated by an antenna to a measured object. The antenna received a second RF signal reflected by the measured object. The IF signal processing module processes the second RF signal and compares the first RF signal with the second RF signal. The computation and display module calculates and displays a distance between the FMCW radar level meter and the measured object. Using the RF signal processing module and the IF signal processing module to process the second RF signal, the issues of noise and temperature coefficient shift can be resolved.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: May 17, 2016
    Assignee: FINETEK CO., LTD.
    Inventors: I-Chu Lin, Shu-Chien Cheng, Yi-Yan Lee, Hui-Chih Hsu, Chao-Kai Cheng
  • FREQUENCY MODULATION CONTINUOUS WAVE RADAR LEVEL METER AND SIGNAL-TRACKING AND PHASE-LOCKING METHOD FOR THE SAME
    Publication number: 20150035695
    Abstract: An FMCW radar level meter has an RF signal processing module, an intermediate frequency (IF) signal processing module, and a computation and display module. A signal generator of the RF signal processing module generates a first RF signal, which is radiated by an antenna to a measured object. The antenna received a second RF signal reflected by the measured object. The IF signal processing module processes the second RF signal and compares the first RF signal with the second RF signal. The computation and display module calculates and displays a distance between the FMCW radar level meter and the measured object. Using the RF signal processing module and the IF signal processing module to process the second RF signal, the issues of noise and temperature coefficient shift can be resolved.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 5, 2015
    Applicant: Finetek Co., Ltd.
    Inventors: I-Chu Lin, Shu-Chien Cheng, Yi-Yan Lee, Hui-Chih Hsu, Chao-Kai Cheng