Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1993-05-07
1994-07-26
Zimmerman, Mark K.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
395155, 345123, G06F 1562
Patent
active
053332474
ABSTRACT:
A tool for a display system comprises means for superimposing a box on a portion of a buffer of data visible on a display; the box being representative of the size and location of the visible portion with respect to the whole of the buffer. For example, a box of an appropriate size can be superimposed on a portion of a buffer of data displayed in a window at an appropriate location in the window to allow the two-dimensional extent of the visible portion of the buffer with respect to the rest of the buffer of data to be represented in an easily understood manner. The invention finds particular application as part of a scroll tool. By the provision of means for interacting with the scroll box the user is provided with a user-friendly manner of scrolling around a document in a plurality of directions. This scroll tool is much more convenient to use than conventional scroll bars and does not take up unnecessary screen real estate.
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Gest Stephen B.
Wymore Farrell W.
Bailey Wayne P.
Carwell Robert M.
International Business Machines - Corporation
Smith Marilyn D.
Zimmerman Mark K.
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