Patent ID: 6903730
Filing Date: 2005-06-07
Classification: G06F

Abstract:
1. A method for detecting an in-air gesture, comprising; steps of: determining whether a digitizing pen is not in contact with a digitizing writing surface; determining whether the digitizing pen is in motion with respect to the digitizing writing surface; recording positional information of the digitizing pen with respect to the surface of the digitizing writing surface within a moving buffer when the digitizing pen is determined to not be in contact with the digitizing writing surface and when the digitizing pen is determined to be in motion with respect to the digitizing writing surface, the moving buffer recording a predetermined amount of positional information spanning a predetermined amount of tine while the digitizing pen is in motion and not in contact with the digitizing writing surface; determining when the digitizing pen has stopped motion with respect to the surface of the digitizing writing surface while the digitizing pen is not in contact with the digitizing writing surface; and determining whether positional information recorded in the moving buffer corresponds to a predetermined in-air gesture that can be made with the digitizing pen, wherein the moving buffer includes positional information corresponding to a start point and an ending point, and wherein the step of determining whether positional information recorded in the moving buffer corresponds to the predetermined in-air gesture is based on a relative position of the starting point with respect to the ending point.