Patents by Inventor Xuelei Hu

Xuelei Hu 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).

  • Voice conference apparatus, voice conference system and method for realizing a voice conference
    Patent number: 7505424
    Abstract: A voice conference apparatus consists of at least one base conference block having three or more signal ports, each including an input for a digitalized voice signal and an output for a digitalized voice signal, wherein a base conference block is configured such that, at a signal port, optionally a terminal or another base conference block may be coupled up using a coupler for the realization of a voice conference apparatus extended with respect to the number of participants or in terms of space, and wherein a base conference block is configured to enable a voice conference among the terminals or base conference blocks coupled thereto, and a remote coupler configured to couple a base conference block with at least one other spatially remote base conference block in order to enable a spatially extended voice conference. A voice conference system may be composed of at least two spatially separate voice conference apparatuses and is structured in a decentralized and modular way and is flexibly extensible.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: March 17, 2009
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Jurgen Hupp, Martin Tittel, Xuelei Hu, Roland Strum, Thomas Kauppert
  • VOICE CONFERENCE APPARATUS, VOICE CONFERENCE SYSTEM AND METHOD FOR REALIZING A VOICE CONFERENCE
    Publication number: 20090052643
    Abstract: A voice conference apparatus consists of at least one base conference block having three or more signal ports, each including an input for a digitalized voice signal and an output for a digitalized voice signal, wherein a base conference block is configured such that, at a signal port, optionally a terminal or another base conference block may be coupled up using a coupler for the realization of a voice conference apparatus extended with respect to the number of participants or in terms of space, and wherein a base conference block is configured to enable a voice conference among the terminals or base conference blocks coupled thereto, and a remote coupler configured to couple a base conference block with at least one other spatially remote base conference block in order to enable a spatially extended voice conference. A voice conference system may be composed of at least two spatially separate voice conference apparatuses and is structured in a decentralized and modular way and is flexibly extensible.
    Type: Application
    Filed: February 5, 2007
    Publication date: February 26, 2009
    Inventors: Juergen Hupp, Martin Tittel, Xuelei Hu, Roland Strum, Thomas Kauppert