Patent ID: 7345677

Claim:
A method for locating a position of an impact on a surface of an object forming an acoustic interface, the surface provided with at least one acoustic sensor, the method comprising: measuring at least one sensed signal from acoustic waves generated in the object forming an acoustic interface by said impact; localizing said position of said impact on said surface by processing of said at least one sensed signal, the processing characterized by a comparison of a sensed signal in the at least one sensed signal with at least one predetermined signal in a plurality of predetermined signals, wherein each respective predetermined signal in said plurality of predetermined signals corresponds to an active zone in a plurality of active zones on said surface, and each respective predetermined signal in said plurality of predetermined signals represents a signal that is sensed when a reference impact is generated on the active zone in said plurality of active zones that corresponds to the respective predetermined signal, and wherein, the position of the impact is associated with an active zone in said plurality of active zones by said localizing when the sensed signal is sufficiently similar to said predetermined signal corresponding to the active zone.