Patents by Inventor Bland Ewing

Bland Ewing 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 transferring coordinate data between a host computer and display device
    Patent number: 5274794
    Abstract: The method and apparatus for efficiently storing or transmitting related sets of data such as X, Y coordinate data determines the resolution of a display device and the transmission limitations of a communication channel to the display device and encodes a selected portion of the bitmap for display with associated offsets and additional information as a complex number according to a variable-radix polynomial, where the number is segmented into selected bytes for transmission within the operating limitations of the communication channel for decoding and restoration of offsets by the display device.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: December 28, 1993
    Assignee: GraphOn Corporation
    Inventors: Bland Ewing, William A. Eckert