Patents by Inventor Shi-Tse Chang

Shi-Tse Chang 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).

  • Acoustic sensor system for insect detection
    Patent number: 5616845
    Abstract: An acoustic sensor system for detection of insects in agricultural commodities. The system includes isolation structure for isolating the agricultural commodities from external noise and vibration, an improved acoustic sensor for detecting sound from within the agricultural commodities and for generating a signal in response to sound so detected, and a user recognizable output such as earphones or a light emitting diode for producing user recognizable output in response to signals generated by the acoustic sensor.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: April 1, 1997
    Inventors: Robert Hickling, Peng Lee, Wei Wei, Shi-Tse Chang