Patents by Inventor David Poos

David Poos 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).

  • Method and apparatus for displaying a high resolution image on a low resolution CRT
    Patent number: 4924522
    Abstract: A method and apparatus for displaying a high resolution image on a low resolution CRT with a minimal loss of information. Even rows of a source or matrix of binary pixels are stored in an "even" video RAM and odd rows are stored in an "odd" video RAM at addresses corresponding to the locations of the binary pixels within the matrix. In a preferred embodiment, a group of four pixels corresponding to a portion of the image is converted to a single gray value which is used to control the intensity of the beam control within the CRT.
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: May 8, 1990
    Assignee: NCR Corporation
    Inventors: John E. Bray, David Poos