Patents by Inventor Chi C. Ho

Chi C. Ho 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).

  • Television set with supervisory functions of alarming burglary and safe watching distance
    Patent number: 4321593
    Abstract: A television set suppresses its video display or responds in another preselected fashion when a viewer is too close to its screen, and is also capable of serving as a burglar alarm. A predetermined condition causes a detection device to generate a signal, which is processed and used to trigger either an alarm, video suppression circuitry or another preselected response. Provision is made for a delay in triggering to prevent undesired responses.
    Type: Grant
    Filed: February 21, 1980
    Date of Patent: March 23, 1982
    Inventors: Chi C. Ho, Tai H. Yang