Patents by Inventor Meng-Lieh Sheu

Meng-Lieh Sheu 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).

  • Fingerprint acquisition apparatus and method therefor
    Patent number: 7715601
    Abstract: A fingerprint acquisition apparatus including a plurality of sensing units is provided. The fingerprint acquisition apparatus is used for sensing the ridge portion and the valley portion of a fingerprint. Each sensing unit includes a built-in capacitor. There is an inducing capacitance generated between each of the sensing units and the fingerprint while the fingerprint touches each of the sensing units. The fingerprint acquisition apparatus of the invention generates a fingerprint pattern by detecting the difference of inducing capacitances between the ridge portion of the fingerprint and the valley portion of the fingerprint.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: May 11, 2010
    Assignees: Himax Technologies Limited, National Chi Nan University
    Inventors: Meng-Lieh Sheu, Hung-Ming Yang
  • Fingerprint acquisition apparatus and method therefor
    Publication number: 20070031012
    Abstract: A fingerprint acquisition apparatus including a plurality of sensing units is provided. The fingerprint acquisition apparatus is used for sensing the ridge portion and the valley portion of a fingerprint. Each sensing unit includes a built-in capacitor. There is an inducing capacitance generated between each of the sensing units and the fingerprint while the fingerprint touches each of the sensing units. The fingerprint acquisition apparatus of the invention generates a fingerprint pattern by detecting the difference of inducing capacitances between the ridge portion of the fingerprint and the valley portion of the fingerprint.
    Type: Application
    Filed: August 4, 2006
    Publication date: February 8, 2007
    Inventors: Meng-Lieh Sheu, Hung-Ming Yang
  • Multiple pattern sequence generation based on inverting non-linear autonomous machine
    Patent number: 5668481
    Abstract: A sequence generator for generating multiple-pattern sequences utilizing an inverting non-linear autonomous machine is disclosed. The generation of the sequence is based on the interdependency relationship between the bits of the deterministic patterns in the sequences to be generated. The autonomous machine comprises a number of flip-flop cascades each containing a number of flip-flops. The flip-flops in each of the cascades are connected in a way that the output of one flip-flop is connected to the input of the next flip-flop in each cascade. The autonomous machine further comprises a number of XOR gates each feeding its output to the input of a corresponding one of the cascades of flip-flops. The autonomous machine further comprises a switch device that includes a number of switches for receiving the output of each of the flip-flops in the cascades as feedbacks for outputting to the inputs of the XOR gates.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: September 16, 1997
    Assignee: National Science Council
    Inventors: Meng-Lieh Sheu, Chung-Len Lee