Patents by Inventor Jeng-Dang Juang

Jeng-Dang Juang 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).

  • Double path microdrop optical biometric system
    Patent number: 7064833
    Abstract: A double path microdrop optical biometric system comprises a micro container, a corner cube array, a collimator, a beam splitting device, a light source selector, a detector and a signal comparator unit. It utilizes the beam to penetrate a specimen with specific coloring agent twice. Then, the shade of the beam can be detected so that a signal comparator unit can calculate the absorptance. The required volume of the specimen used in the system is small. The precision will be doubled by the double path design. Its entire optic-electronic system is simple and at low cost. By using the LEDs, it can avoid the use of filter and solve the over-heating problem. Plus, it can execute many bio-chemical tests.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: June 20, 2006
    Assignee: Chung Shan Institute of Science and Technology
    Inventors: Ter-Chin Chen, Huang-Tzung Jan, Jeng-Dang Juang, Yen-Ming Pang
  • Double path microdrop optical biometric system
    Publication number: 20050162652
    Abstract: A double path microdrop optical biometric system comprises a micro container, a corner cube array, a collimator, a beam splitting device, a light source selector, a detector and a signal comparator unit. It utilizes the beam to penetrate a specimen with specific coloring agent twice. Then, the shade of the beam can be detected so that a signal comparator unit can calculate the absorptance. The required volume of the specimen used in the system is small. The precision will be doubled by the double path design. Its entire optic-electronic system is simple and at low cost. By using the LEDs, it can avoid the use of filter and solve the over-heating problem. Plus, it can execute many bio-chemical tests.
    Type: Application
    Filed: January 26, 2004
    Publication date: July 28, 2005
    Inventors: Ter-Chin Chen, Huang-Tzung Jan, Jeng-Dang Juang, Y. Pang