Patents by Inventor Robert Frederick Aird

Robert Frederick Aird 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).

  • Fire detection algorithm
    Patent number: 6956485
    Abstract: A method and apparatus for the detection of flame by entering (S1) a video signal into an algorithm which processes individual pixels in (S2) a frequency band is determined and used as a filter (S3) applies a threshold to create a map of significant movement (S4) applies an awareness map (S5) a number of parameters are calculated to decide whether flame is present in the video images being processed (S6) applies further filtering before indicating an alarm registering the presence of a flame threat.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: October 18, 2005
    Assignee: VSD Limited
    Inventors: Robert Frederick Aird, Edward Grellier Colby, Michael John Black