Patents by Inventor Rex W. Davy

Rex W. Davy 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).

  • Data compression by discarding portions of data
    Patent number: 5040233
    Abstract: A method of modifying a digital representation of an image in which digital data defines the content of pixels of the image. The method comprisesa) determining whether a predetermined degree of compression can be achieved if data defining a block of pixels is compressed by applying a predetermined compression algorithm; and, if not,b) discarding a portion of the data in the block, andrepeating steps a and b on the most recently modified block until the predetermined degree of compression is achieved, and generating a compressed version of the image.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: August 13, 1991
    Assignee: Crosfield Electronics Ltd.
    Inventors: Rex W. Davy, David J. Harris