Patents by Inventor Mohammed Granbari

Mohammed Granbari 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).

  • Video transcoder with by-pass transfer of extracted motion compensation data
    Patent number: 5940130
    Abstract: A transcoder for the conversion of video signals between a first and a second coding scheme employing motion compensation comprises a decoder (28) for decoding a received data stream encoded according to a first coding scheme and an encoder (30) for encoding a data stream from the decoder into a data stream according to a second coding scheme. The decoder (28) extracts motion vectors from the received data stream and passes them (42) to the data stream of the encoder, so avoiding the recalculation of the motion vectors. Drift compensation means (52-64; 70-78) may be provided to compensate for any resulting drift after a picture frame.
    Type: Grant
    Filed: October 4, 1995
    Date of Patent: August 17, 1999
    Assignee: British Telecommunications public limited company
    Inventors: Michael Erling Nilsson, David Geoffrey Morrison, Mohammed Granbari