Patents by Inventor Bruce Fairbairn Devlin

Bruce Fairbairn Devlin 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 compression
    Patent number: 6625221
    Abstract: An MPEG-2 or other compressed video stream (CP) can be manipulated as separate information bus (IB) and coefficient (CP*) streams. The information bus stream (IB) contains motion vector information but also information derived from a previous decoding operation (14, 18) for use in a subsequent coding operation (22). Processing in the coefficient domain enables bit rate conversion without decoding to the pixel level and also simplifies the combination of MPEG layers.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: September 23, 2003
    Assignee: Snell & Wilcox Limited
    Inventors: Michael James Knee, Bruce Fairbairn Devlin, Nicholas Dominic Wells
  • Video compression
    Publication number: 20010031009
    Abstract: An MPEG-2 or other compressed video stream (CP) can be manipulated as separate information bus (IB) and coefficient (CP*) streams. The information bus stream (IB) contains motion vector information but also information derived from a previous decoding operation (14, 18) for use in a subsequent coding operation (22). Processing in the coefficient domain enables bit rate conversion without decoding to the pixel level and also simplifies the combination of MPEG layers.
    Type: Application
    Filed: February 22, 2001
    Publication date: October 18, 2001
    Inventors: Michael James Knee, Bruce Fairbairn Devlin, Nicholas Dominic Wells
  • Video compression
    Patent number: 6285716
    Abstract: An MPEG-2 or other compressed video stream (CP) can be manipulated as separate information bus (IB) and coefficient (CP*) streams. The information bus stream (IB) contains motion vector information but also information derived from a previous decoding operation (14, 18) for use in a subsequent coding operation (22). Processing in the coefficient domain enables bit rate conversion without decoding to the pixel level and also simplifies the combination of MPEG layers.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: September 4, 2001
    Assignees: Snell & Wilcox Limited, British Broadcasting Corporation
    Inventors: Michael James Knee, Bruce Fairbairn Devlin, Nicholas Dominic Wells
  • Video signal processing
    Patent number: 6088393
    Abstract: In a signal transmission chain containing, for example MPEG2 coders (12, 20, 28) and decoders (24, 30), an information channel extends throughout the signal chain. Signal processing elements in the chain take advantage of information (VP) on the information channel and also add to it information (VP) concerning the process performed by that signal processing element. The information channel, towards the end of the signal transmission chain, therefore carries information (VP) relating to all or most of the various processes performed by in the chain.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: July 11, 2000
    Assignee: Snell & Wilcox Limited
    Inventors: Michael James Knee, Bruce Fairbairn Devlin