METHOD OF RECORDING AND PLAYING BACK AUDIO USING HANDHELD ELECTRONIC PEN

摘要

A method of recording and playing back audio using a handheld electronic pen. The method includes the steps of method comprising the steps of: recording audio via a microphone whilst interacting with an encoded substrate using the pen; and playing back the recorded audio by subsequently interacting with the encoded substrate and retrieving the recorded audio which is associated with the identity of the substrate and a position on the substrate.