Patents by Inventor Pi-Lieh Chang

Pi-Lieh 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).

  • Load cell touch control device
    Patent number: 8355010
    Abstract: A load cell touch control device includes a touch panel, a plurality of load cells and a control unit. The touch panel receives a stress applied thereon. The load cells are implemented in the touch panel to detect respective components of the stress received by the touch panel. The control unit is connected to the load cells in order to receive magnitudes of the respective components to thereby calculate a magnitude, position and motion trace of the stress on the touch panel based on the respective components detected by the load cells in the touch panel.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: January 15, 2013
    Assignee: Geee Creations, Inc.
    Inventors: Chung-Liang Lin, Chang-Chun Lung, Pi-Lieh Chang, Tsung-Hsin Liu, Ta-Jen Lin, Ko-Po Lin, Cheng-Hao Yu
  • MULTI-DIMENSION DETECTOR WITH HALF BRIDGE LOAD CELLS
    Publication number: 20110202290
    Abstract: A multi-dimension detector with half bridge load cells, which includes an analog to digital converter (ADC), a plurality of half bridge load cells, an analog multiplexer and a central processing unit (CPU). The CPU controls the analog multiplexer to form a plurality of full bridge load cells by selecting either two of the half bridge load cells and detect a plurality of measures corresponding to an object. The ADC converts analog signals corresponding to the plurality of measures into digital signals. The CPU determines all dimension values of the object according to the plurality of measures corresponding to the digital signals.
    Type: Application
    Filed: April 29, 2011
    Publication date: August 18, 2011
    Applicant: Justtec Corporation
    Inventors: Pi-Lieh CHANG, Ta-Jen Lin, Chung-Liang Lin, Chang-Chun Lung
  • Load cell touch control device
    Publication number: 20110050622
    Abstract: A load cell touch control device includes a touch panel, a plurality of load cells and a control unit. The touch panel receives a stress applied thereon. The load cells are implemented in the touch panel to detect respective components of the stress received by the touch panel. The control unit is connected to the load cells in order to receive magnitudes of the respective components to thereby calculate a magnitude, position and motion trace of the stress on the touch panel based on the respective components detected by the load cells in the touch panel.
    Type: Application
    Filed: December 15, 2009
    Publication date: March 3, 2011
    Applicant: Justtec Corporation
    Inventors: Chung-Liang Lin, Chang-Chun Lung, Pi-Lieh Chang, Tsung-Hsin Liu, Ta-Jen Lin, Ko-Po Lin, Cheng-Hao Yu
  • Multi-dimension detector with half bridge load cells
    Publication number: 20090259414
    Abstract: A multi-dimension detector with half bridge load cells, which includes an analog to digital converter (ADC), a plurality of half bridge load cells, a multiplexer and a central processing unit (CPU). The CPU controls the multiplexer to form a plurality of full bridge load cells by selecting either-two of the half bridge load cells and detect a plurality of measures corresponding to an object. The ADC converts analog signals corresponding to the plurality of measures into digital signals. The CPU determines all dimension values of the object according to the plurality of measures corresponding to the digital signals.
    Type: Application
    Filed: July 14, 2008
    Publication date: October 15, 2009
    Applicant: Justtec Corporation
    Inventors: Pi-Lieh Chang, Ta-Jen Lin, Chung-Liang Lin, Chang-Chun Lung