Patent ID: 7450114

Claim:
A computer device having a system for simulating tactile control over a document, comprising a processor, memory, and a touch-sensitive display, system code stored within the memory and adapted to be executed by the processor to provide a digital representation of a document including data content and a page structure representative of a page layout of the document, an engine for rendering an image of at least a portion of the page layout of the digital representation on the touch-sensitive display, a display monitor in communication with the touch-sensitive display screen for detecting motion of a pointer across the touch-sensitive display, a velocity detector for determining a velocity vector based on a velocity of the detected motion, an interface process in communication with the display monitor for processing the motion detected by the display monitor to detect one of a plurality of commands, wherein the plurality of commands includes a pan command, wherein, in response to the command detected by the interface process being the pan command, the engine pans the displayed document on the display at a rate based on the determined velocity vector.