Patents by Inventor Matteo Boffadossi

Matteo Boffadossi 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).

  • Loss-less compression of still images at enhanced speed
    Patent number: 7177479
    Abstract: A method of compressing a stream of pixel data relative a two-dimensional object, pixels of which are scanned by rows from a source device to a receiver device, includes defining an extended context window to include a pair of pixels following a last encoded pixel on the row being scanned and the respective triplets of neighboring pixels belonging to the preceding row. The method includes defining a first distinct context array of pixels of the extended context window for the pixel of the pair immediately following the last encoded pixel, and a second context array of pixels of the extended context window for the other pixel of the pair. An extended context value relative to each pixel of the pair is calculated, and the extended context value relative to a first pixel immediately following the last encoded pixel is compared with an extended threshold.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: February 13, 2007
    Assignee: STMicroelectronics S.r.l.
    Inventors: Mauro De Ponti, Marco Ferretti, Matteo Boffadossi
  • Loss-less compression of still images at enhanced speed
    Publication number: 20040213471
    Abstract: A method of compressing a stream of pixel data relative a two-dimensional object, pixels of which are scanned by rows from a source device to a receiver device, includes defining an extended context window to include a pair of pixels following a last encoded pixel on the row being scanned and the respective triplets of neighboring pixels belonging to the preceding row. The method includes defining a first distinct context array of pixels of the extended context window for the pixel of the pair immediately following the last encoded pixel, and a second context array of pixels of the extended context window for the other pixel of the pair. An extended context value relative to each pixel of the pair is calculated, and the extended context value relative to a first pixel immediately following the last encoded pixel is compared with an extended threshold.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 28, 2004
    Applicant: STMicroelectronics S.r.I.
    Inventors: Mauro De Ponti, Marco Ferretti, Matteo Boffadossi