Patent ID: 7333768

Claim:
An audio storage and retrieval system comprising: a label having an encoded memory storage address, said label including a surface having at least one optically reflective region and at least one optically non-reflective region; and an audio storage and retrieval device including a memory for storing a plurality of audio files, each said stored audio file corresponding to a unique memory storage address; a decoder, for reading said encoded memory storage address from said label, said decoder including a plurality of optical sources and a plurality of optical detectors, said decoder further including lateral optical barriers disposed between adjacent pairs of said optical sources and said optical detectors so as to prevent optical radiation emitted from a said optical source in one said pair from reaching a said optical sensor in an adjacent said pair; and a control module in communication with said decoder for deriving a memory storage address from said encoded memory storage address, said control module further in communication with said memory for retrieving an audio file corresponding to said memory storage address.