Patents by Inventor Shing-Wu Tzeng

Shing-Wu Tzeng 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).

  • Patent number: 7792152
    Abstract: A flexible framing format and implementation scheme for transmitting uncompressed video data selected from a group of various video formats, audio data and control data over a single serial communication channel at a fixed clock rate, thereby eliminating the need for transmitting a pixel clock signal. The data is transmitted over the single communication channel in packets and recreated at the destination side. Blank pixels of the video data are completely suppressed so that only active pixels are transmitted over the single communication channel, thereby reducing communication bandwidth requirement of the channel.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: September 7, 2010
    Assignee: OWLink Technology, Inc.
    Inventors: Mingcheng Xu, Shing-Wu Tzeng
  • Patent number: 7742438
    Abstract: Implementation schemes for transmitting High-Bandwidth Digital Content (HDCP) control-related data in HDCP systems over a single communication channel.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: June 22, 2010
    Assignee: OWLink Technology, Inc.
    Inventors: Mingcheng Xu, Shing-Wu Tzeng
  • Publication number: 20070242062
    Abstract: Techniques are disclosed for passing Extended Display Identification Data (EDID) or Enhanced-EDID (E-EDID) in an uncompressed multimedia communication system including a video sink side communicatively coupled to a video source side. An EDID AVAILABLE packet is communicated via a serial backward channel from the video sink side. A REQUEST is communicated to the video sink side via a serial forward channel to indicate the video sink side can send the EDID data. The EDID data is then communicated to the video sink side via the serial backward channel.
    Type: Application
    Filed: April 18, 2006
    Publication date: October 18, 2007
    Inventors: Yong Guo, Mingcheng Xu, Shing-Wu Tzeng
  • Publication number: 20070003288
    Abstract: Techniques that provide cost effective optical fiber communication links for HDCP transmission systems and the like are provided. A single fiber for bidirectional communication is enabled, without wavelength selective unit to achieve the HDCP transmission. One embodiment of the present invention has a forward channel using a light source (e.g., VCSEL at about 850 nm) in the GHz modulation level (e.g., 1 GHz or greater), and a corresponding photodetector. The backward channel has a light source (e.g., LED at 630 nm) in the MHz modulation level (e.g., 10 MHz or less), and a corresponding photodetector. One application is for realizing a home entertainment system (e.g., DVD player and high definition television) that employs an HDCP-enabled communication link to transmit copy restricted digital content.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 4, 2007
    Inventors: Xiaolin Tong, Shing-Wu Tzeng, Hua Zhang, Randall Blair