Patents by Inventor Yan J. Yu

Yan J. Yu 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).

  • Mixing and splitting multiple independent audio data streams in kernel space
    Patent number: 6405255
    Abstract: A method and an apparatus for securely mixing and splitting multiple audio data streams and determining the order of processing the audio streams. A audio server and an audio device driver are in kernel space of a given computer system. In one embodiment, the computer system has a data flow checker and adjuster for checking the flow of data into data queues and a setup application for connecting the audio server and the audio device driver. The data flow checker and adjuster adjusts the flow of data by sending a message up or downstream instructing the up or downstream processes/devices to send more data or stop sending data depending on how full the data queues are.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: June 11, 2002
    Assignee: Sun Microsystems, Inc.
    Inventors: Benjamin H. Stoltz, Michael J. Bundschuh, Yan J. Yu
  • MIXING AND SPLITTING MULTIPLE INDEPENDENT AUDIO DATA STREAMS IN KERNEL SPACE
    Publication number: 20020032753
    Abstract: A method and an apparatus for securely mixing and splitting multiple audio data streams and determining the order of processing the audio streams. A audio server and an audio device driver are in kernel space of a given computer system. In one embodiment, the computer system has a data flow checker and adjuster for checking the flow of data into data queues and a setup application for connecting the audio server and the audio device driver. The data flow checker and adjuster adjusts the flow of data by sending a message up or downstream instructing the up or downstream processes/devices to send more data or stop sending data depending on how full the data queues are.
    Type: Application
    Filed: July 1, 1996
    Publication date: March 14, 2002
    Inventors: BENJAMIN H. STOLTZ, MICHAEL J. BUNDSCHUN, YAN J. YU