Patents by Inventor David Ying Wai Liu

David Ying Wai Liu 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 scaling a cursor on local computer to have the same size relative to a window on the local computer as another cursor has to another window on a remote computer
    Patent number: 5898419
    Abstract: A first computer workstation 810 is linked to a second computer workstation 820. A window 812 which is displayed at the first computer workstation is copied to a window 822 at the second computer workstation. A hook procedure is used to intercept movement of the cursor 814 at the first workstation. These movements are then transmitted together with a representation of the cursor image over the link from the first computer to the second computer. The cursor image is then displayed 824 at the second terminal in the corresponding position as at the first terminal. The size of the cursor image is scaled so that cursor 824 has the same size relative to window 822 as cursor 814 as to window 812.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: April 27, 1999
    Assignee: International Business Machines Corp.
    Inventor: David Ying Wai Liu