Patents by Inventor Yuti Wang

Yuti Wang 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).

  • Tone-controlled video muting
    Patent number: 6775462
    Abstract: The present invention is a method and apparatus to control muting a video output. A tone detector detects a first tone in a control tone signal generated by a video player during playing a video program from a master medium. The control tone signal is recorded on the master medium. The video player provides a video signal corresponding to the video program. A mute controller mutes a video output representing the video signal when the first tone is detected. The video output is recorded on a duplication medium in a video recorder.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: August 10, 2004
    Assignees: Sony Corporation, Sony Trans Com Inc.
    Inventors: Yuti Wang, Rome Gutierrez, Douglas C. Brown