Patents by Inventor Lew Bohdan Stelmach

Lew Bohdan Stelmach 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).

  • Bandwidth reduction for stereoscopic imagery and video signals
    Patent number: 6678323
    Abstract: This invention relates to reducing bandwidth requirements for stereoscopic imagery and video signals. The invention comprises a method of producing two streams of images or signals for producing images, separately for the left eye and for the right eye. One image of each stereoscopic pair in the streams is of reduced quality relative to the other. On occurrence of a significant change in image content, or similar occurrence, the image quality of the two streams are switched or transposed, whereby the higher quality image is seen alternately by one eye and then the other. Intervals between switching are indeterminate, and such switching is continued for the duration of the streams of images or video signals.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: January 13, 2004
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of Industry through Communications Research Centre
    Inventors: Wa James Tam, Lew Bohdan Stelmach
  • Bandwidth reduction for stereoscopic imagery and video signals
    Publication number: 20020097319
    Abstract: This invention relates to reducing bandwidth requirements for stereoscopic imagery and video signals. The invention comprises a method of producing two streams of images or signals for producing images, separately for the left eye and for the right eye. One image of each stereoscopic pair in the streams is of reduced quality relative to the other. On occurrence of a significant change in image content, or similar occurrence, the image quality of the two streams are switched or transposed, whereby the higher quality image is seen alternately by one eye and then the other. Intervals between switching are indeterminate, and such switching is continued for the duration of the streams of images or video signals.
    Type: Application
    Filed: January 24, 2001
    Publication date: July 25, 2002
    Inventors: Wa James Tam, Lew Bohdan Stelmach