Patent ID: 7796978
Filing Date: 2010-09-14
Classification: A63H,G01S,G10L,H04H,H04M,H04N

Abstract:
1. A telecommunications apparatus comprising: an acoustic signal receiver operable to receive acoustic signals and to convert the received acoustic signals into corresponding electrical signals; an audio processor, coupled to said acoustic signal receiver and operable to process electrical signals obtained from said acoustic signal receiver for transmission to a telecommunications network; and a data processor, coupled to said acoustic signal receiver and operable to recover a data signal conveyed by an acoustic signal received by said acoustic signal receiver, to provide data to said telecommunications apparatus; a data store for storing a computer program; a responder operable to respond to the data provided by the data signal; wherein said acoustic-signal conveying said data signal comprises an audio signal in which said data signal is encoded and hidden; wherein the data signal is encoded as a wideband data signal so that a main band of the spectrum of the wideband data signal lies within a frequency band below 5 kHz; wherein said data processor comprises a decoder operable to decode the wideband data signal to recover the data signal; wherein said responder is operable to output a signal comprising data provided by the data signal, via the telecommunications network, to a telecommunications address that is pre-stored in the telecommunications apparatus; and wherein the responder comprises a program executor that is operable to execute the computer program stored in the data store in response to an initialisation signal conveyed by the data signal.