Patents by Inventor John E. D. Ball

John E. D. Ball 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).

  • Method and apparatus for closed captioning at a performance
    Patent number: 5648789
    Abstract: Apparatus for providing closed captioning at a performance comprises means for encoding a signal representing the written equivalent of spoken dialogue. The signal is synchronized with the spoken dialog and transmitted to wearable glasses of a person watching the performance. The glasses include receiving and decoding circuits and means for projecting a display image into the field of view of the person watching the performance representing at least one line of captioning. The field of view of the displayed image is equivalent to the field of view of the performance. A related method for providing closed captioning further includes the step of accommodating for different interpupillary distances of the person wearing the glasses.
    Type: Grant
    Filed: October 2, 1991
    Date of Patent: July 15, 1997
    Assignee: National Captioning Institute, Inc.
    Inventors: Robert L. Beadles, John E. D. Ball