Patents by Inventor Ravi Ravisankar

Ravi Ravisankar 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 operating system for manipulating the orientation of an output image of a data processing system
    Patent number: 5920688
    Abstract: An operating system for manipulating the orientation of an output image of a data processing system provides operating system support to rotate an image output to a device driver at rendering time for printing in portrait or landscape mode and for displaying the image in increments of 90 decree rotations. A user or system sets a rotation for all output images sent to the peripheral device, regardless of what application provides the image, and the operating system performs the rotation on all output images sent to the particular output device.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: July 6, 1999
    Assignee: International Business Machines Corporation
    Inventors: Michael R. Cooper, Ravi Ravisankar