公式タイトルと情報はIP Exchange PlusとPremiumのユーザーのみが利用可能です。
テクノロジー NTT Docomo has developed a mobile phone system which uses sound waves to transmit data and documents. The acoustic communication system works by converting and embedding information, digitally into speech or music and then transmitting it through a speaker system. This technology allows a large amount of data to be transferred through sound waves.
追加情報の詳細を見るにはIP Exchange PlusまたはIP Exchange Premiumアカウントにアップグレードする必要があります
