Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1991-10-16
1994-12-06
Herndon, Heather R.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
345123, 345145, 395161, G06F 1562
Patent
active
053718461
ABSTRACT:
A non-linear scroll bar is associated with a window or viewport on a computer display as part of a computer system, and contains a slider to indicate relative positioning in the window of a document, such as a data file, image file, audio file, text file, or spreadsheet. The current position of a user in a document, as referenced by a cursor or other marking device, is monitored by the computer system. After a first predetermined sampling period has elapsed, a first region containing upper and lower boundaries of a portion of the document that envelop the current position in the document is created in a portion of memory called "scroll data". The initial size of the region is determined by a predetermined region growth rate. When a user moves the slider of a scroll bar, the computer system checks scroll data to see if the new current position in the document is within the first region. If so, the computer system snaps back the slider to the midpoint of the first region and displays the corresponding portion of the document. The longer the current position is in the first region, the larger the first region becomes, and the easier the midpoint of this first region is for the user to find through course positioning of the scroll bar slider.
REFERENCES:
patent: 4586035 (1986-04-01), Baker et al.
patent: 5185698 (1993-02-01), Hesse et al.
patent: 5196838 (1993-03-01), Meier et al.
Graphical Method of Indicating the Position of and Performing an Operation on a Plurality of Selected Objects in a Computer System, US patent application Ser. No. 07/619,628 filed Nov. 28, 1990, R. J. Torres; S. S. Fleming.
Scrollbar Having System or User Provided Information, US patent application Ser. No. 07/531,213 filed May 31, 1990, V. J. Cina Jr.; D. P. Pazel.
Herndon Heather R.
International Business Machines - Corporation
Rose Curtis G.
Roth Steven W.
LandOfFree
Non-linear scroll bar does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-linear scroll bar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-linear scroll bar will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-221293