Patent ID: 7342350

Claim:
A stylus comprising: an elongated housing defining an internal bore and having an opening at an end thereof that communicates with the internal bore; a writing and drawing implement disposed within the bore of the housing, the implement having a tip extending through the opening at the end of the housing; and a transducer disposed within the bore, the transducer comprising: a holder having at least two spaced apart cylindrical surfaces; a cylindrical piezoelectric film spanning between the at least two spaced apart cylindrical surfaces of the holder; an outer electrode segment disposed on an outer surface of the film; and an inner electrode segment disposed on an inner surface of the film; wherein the transducer radiating acoustic energy substantially along a longitudinal axis of the stylus in response to an excitation voltage applied to the film via the electrode segments such that the radiating acoustic energy propagates along the bore toward the end and exits at the opening.