Radio beacon transmitters for transmitting data, namely, inaudible tones to a specially-designed inaudible tone sensor; Radio receivers for receiving data in the form of inaudible tones; Software application use with transmitters, receivers, mobile phones, handheld computers, and inventory systems for decoding data received from the radio beacon transmitter, namely, for decoding inaudible tones

'applic':30 'beacon':2,49 'comput':38 'data':6,22,44 'decod':43,53 'design':14 'form':25 'handheld':37 'inaud':8,15,27,54 'inventori':40 'mobil':35 'name':7,51 'phone':36 'radio':1,18,48 'receiv':19,21,34,45 'sensor':17 'softwar':29 'special':13 'specially-design':12 'system':41 'tone':9,16,28,55 'transmit':5 'transmitt':3,33,50 'use':31

INAUDIBLE TONES

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