Patents by Inventor Chia-Hsiung Liu

Chia-Hsiung Liu 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).

  • Publication number: 20060227968
    Abstract: A time-dependent watermark system is provided for information integrity identification and tampering detection and damaged area reconstruction for digitally recorded speech that can be used as evidence in the court of law. The present invention utilizes the speech characteristics of frame, reconstruction information and time-dependent information to generate watermark for adding to the speech data at the secondary parameters where the impact on the speech quality is minimal. The present invention also provides a detection mechanism of tampering location and tamper way. The analysis scheme, according to the location and the type of the damaged watermark, determines the location and the way of tampering so that the reconstruction can be performed with the reconstruction information established in advance.
    Type: Application
    Filed: April 8, 2005
    Publication date: October 12, 2006
    Inventors: Oscal Chen, Chia-Hsiung Liu
  • Patent number: 6549401
    Abstract: A cradle capable of receiving objects having alternative sizes is provided. The cradle includes a main unit, a slide mechanism and a lock mechanism. The main unit loads and holds the object. The slide mechanism is for adjusting the size of the room for placing the object. The lock mechanism positions the slide mechanism by clasping the slide mechanism.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: April 15, 2003
    Assignee: High Tech Computer Corporation
    Inventors: Yao-Chung Lin, Chia-Hsiung Liu
  • Publication number: 20020024794
    Abstract: A cradle capable of placing an object in alternative size is for bi-directional data transmission by connecting a computer host and for battery charging by plugging in. The cradle includes a main unit, a slide mechanism and a lock mechanism. The main unit loads and holds the object. The slide mechanism is for adjusting the size of the room for placing the object. The lock mechanism positions the slide mechanism by clasping the slide mechanism.
    Type: Application
    Filed: July 20, 2001
    Publication date: February 28, 2002
    Inventors: Yao-Chung Lin, Chia-Hsiung Liu