Patents by Inventor His-Chuan Liu

His-Chuan 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: 20090128357
    Abstract: A network audio/video (AV) rescue system is provided, which includes more then one rescue terminals, and each rescue terminal transmits signals with a server through a same protocol. When a rescue terminal is activated by a local user, image and audio signals can be transmitted for calling a rescue. A server can immediately receive the image and audio signals and determine the network address of the rescue terminal sending the signals. Therefore, a remote user on the server end can communicate with the local user through the server, such that the remote user can know what is needed for the local user and to provide necessary help and assistance to the local user.
    Type: Application
    Filed: November 19, 2007
    Publication date: May 21, 2009
    Applicants: TWSAFE INC., I-SHOU UNIVERSITY
    Inventors: Jui-Hsu Shen, His-Chuan Liu, Ju-Lung Chen, Tsung-Ching Lin