Patent ID: 8610677
Filing Date: 2013-12-17
Classification: G06F

Abstract:
1. A touch-sensitive pointing device, in the form of a touchpad, for controlling at least two coordinates of a movement of a cursor on a computer display and/or the vertical and horizontal scrolling in a window on a computer display, said pointing device comprising: a touch-sensitive sensor surface generating signals dependent on at least one of the placement, and movement of a finger in physical contact with said sensor surface; wherein said touch-sensitive sensor surface comprises a corrugated area formed by a plurality of alternating grooves and ridges extending in a first direction along substantially straight lines, wherein neighbouring ridges are arranged substantially parallel and with a mutual distance from each other between 0.2 mm and 3 mm; wherein said corrugated area being configured to provide a first friction independent of finger movement direction thereon with application of a first finger pressure mode, and to provide a second friction which is lower in a direction parallel to said corrugated area than in other finger movement directions respectively upon a second finger pressure mode on said corrugated area.