Patent ID: 6707449
Filing Date: 2004-03-16
Classification: C08F,C08K,C08L,Y02T

Abstract:
A method for scrolling a document, comprising the steps of:scrolling the document by an amount based on a difference between two positions of a pointer on a touch-sensitive surface, such that a speed of scrolling of the document is non-proportional to a speed of the pointer along the touch-sensitive surface; receiving a first signal indicating a first position Yi-1 of the pointer on the touch-sensitive surface; and receiving a second signal indicating a second position Yi of the pointer on the touch-sensitive surface, the pointer being at the second position at a time after the pointer is at the first position, wherein the step of scrolling includes determining a scroll amount dy according to the following algorithm: dy=K1(Yiâˆ’Yiâˆ’1)(e1+K2(Yiâˆ’Yiâˆ’1)âˆ’e+1), and K1 and K2 are each predetermined numerical values.