Patents by Inventor Christina K. Liu

Christina K. 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).

  • Video transcoding with interim encoding format
    Patent number: 6389174
    Abstract: A method, apparatus, and storage medium for processing video data. According to one embodiment, data encoded in a first high level encoding format is partially decoded. The partially decoded data is encoded in accordance with a second high level encoding format.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: May 14, 2002
    Assignee: Intel Corporation
    Inventors: Christina K. Liu, Judith A. Goldstein, Yung D. Nguyen
  • Multiple codecs for video encoding format compatibility
    Patent number: 5970233
    Abstract: A method, apparatus, and storage medium for processing video data. According to one embodiment, first data encoded in a first high level encoding format and second data encoded in a second high level encoding format are provided. The first data is decoded with a first format decoder of a video subsystem. The second data is decoded with a second format decoder of the video subsystem.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: October 19, 1999
    Assignee: Intel Corporation
    Inventors: Christina K. Liu, Yung D. Nguyen
  • Video conferencing decoder engine with direct signaling to encoder engine for relaying of decoded data
    Patent number: 5854892
    Abstract: There is provided herein a method, apparatus, and storage medium for processing data. According to one embodiment, encoded data is received by a playback engine of a computer system. A decoder of the playback engine decodes the encoded data. A capture engine of the computer system is notified to encode the decoded data. The decoded data is encoded with an encoder of the capture engine.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: December 29, 1998
    Assignee: Intel Corporation
    Inventors: Christina K. Liu, Yung D. Nguyen, Judith A. Goldstein
  • Low-cost room-based video conferencing systems
    Patent number: 5675512
    Abstract: A low cost room-based videoconferencing system for videoconferencing between many stations. In the invention, each station includes a computer running a windowing operating system and PROSHARE. It also includes a communication link connecting the computer and one or more of the videoconferencing stations. In addition there are video and audio input devices connected to the computer. A DCI-enabled video card is connected to the computer. A NTSC converter is connected to the output of the DCI enabled graphics card and one or more NTSC television monitors are connected to the NTSC converter. PROSHARE manages the videoconferencing sessions and provides a small video image. The DCI-enabled video card stretches the small PROSHARE image to a full screen image which is then converted by the NTSC converter and displayed on an inexpensive NTSC television monitor.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: October 7, 1997
    Assignee: Intel Corporation
    Inventors: Shelley D. Ireton, Christina K. Liu