Tag Archives: ultrasonic


在這篇看到現在已經有跨裝置的追蹤機制:「Beware of ads that use inaudible sound to link your phone, TV, tablet, and PC」。 電視廣告利用超高頻 (人類聽不到) 與手機或平板裝置上的應用程式配對,進而組合使用者的行為: The ultrasonic pitches are embedded into TV commercials or are played when a user encounters an ad displayed in a computer browser. … Continue reading

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