Patents by Inventor Yue-Da Tsai

Yue-Da Tsai 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 SHIFT DETECTOR
    Publication number: 20130218473
    Abstract: A frequency shift detector includes a digital control unit, a digital/analog converter, a reagent concentration detecting circuit and a frequency difference generator, wherein the digital control unit includes a control circuit and a direct digital frequency synthesizer electrically connected with the control circuit, and the control circuit comprises a reset terminal and a pulse input terminal. The digital control unit proceeds with accurate concentration detection for various samples borne on the reagent concentration detecting circuit.
    Type: Application
    Filed: August 22, 2012
    Publication date: August 22, 2013
    Applicant: NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Chua-Chin Wang, Chia-Hao Hsu, I-Yu Huang, Yun-Chi Chen, Yue-Da Tsai, Ming-Chih Lee