Patent ID: 9569045
Date: 2017-02-14
CPC Classifications: G06F

Claim:
1. A method for estimating an orientation of a stylus relative to a touch sensor panel, the method comprising: acquiring a touch image from the touch sensor panel; determining a location of a stylus tip from the acquired touch image; determining a location of a hand grasping the stylus from the acquired touch image; determining an angle between the location of the stylus tip and the location of the hand grasping the stylus; determining a size of the hand grasping the stylus; and estimating the orientation of the stylus relative to the touch sensor panel based on the determined location of the stylus tip, the determined location of the hand grasping the stylus, the determined angle between the location of the stylus tip and the location of the hand grasping the stylus and the determined size of the hand grasping the stylus.