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An Entity of Type : prov:Entity, within Data Space : webisadb.webdatacommons.org associated with source dataset(s)

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  • In a battery-powered wireless reception device sized for fitting in a user's pocket or purse, the device including an RF amplifier, a demodulator, and a speaker, the device serving to receive RF transmissions and output an audio signal conveyed thereby, an improvement comprising a steganographic decoder for discerning multi-symbol auxiliary data conveyed as slight alterations to said audio signal.
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