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US 7,689,934 B2Granted
Method of scrolling through a document
AssigneeKoninklijke Philips Electronics N.V.
InventorPaulus Cornelis Neervoort
Life of this patent
Estimating the term…
Abstract
The invention relates to a data processing system enabling a user to view or edit a document. When the user scrolls the document over a relatively large distance within a short time period, the system automatically adjusts the zoom factor so as to provide the user with a better overview during scrolling. When the user has finished scrolling, the zoom factor may be reinstated to its initial value.
Claims9
A system for scrolling through a document, comprising:
- presentation means for presenting at least a part of a document on a display screen, said part being determined by a position of a focal point within the document and by a zoom factor with respect to at least one coordinate direction,
- the presentation means being capable of adjusting the position of the focal point in response to a user-supplied scroll command,
- said presentation means being adapted to automatically adjust the zoom factor (i) in dependence upon an aspect of said scroll command and (ii) when the focal point approaches an edge of the display screen and remains on the edge of the display screen for a predetermined period of time, wherein a relatively large adjustment of the position of the focal point in a certain coordinate direction causes a zooming-out of said document in at least said coordinate direction.
A method of scrolling through a document, comprising;
- a presentation step of presenting at least a part of the document on a display screen by a processing unit, said part being determined by a position of a focal point within the document and by a zoom factor with respect to at least one coordinate direction,
- the method further comprising a step of:
- adjusting the position of the focal point in response to a user-supplied scroll command, said presentation step being adapted to automatically adjust the zoom factor (i) in dependence upon an aspect of said scroll command and (ii) when the focal point approaches an edge of the display screen and remains on the edge of the display screen for a predetermined period of time, wherein a relatively large adjustment of the position of the focal point in a certain coordinate direction causes a zooming-out of said document in at least said coordinate direction.
Dependencies are inferred from the claim text.