AUDIO DATA TRANSMISSION SYSTEM, AUDIO DATA TRANSMISSION APPARATUS, AND ELECTRONIC SIGNATURE TOKEN
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United States of America Patent
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Issued Date -
May 21, 2015
app pub date -
Jun 14, 2013
filing date -
Jun 16, 2012
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Abstract
An audio data transmission system, an audio data transmission apparatus for a mobile terminal and an electronic signature token are provided. The electronic signature token includes a modulating module configured to modulate audio data to be transmitted into an analog waveform signal using at least two modulation modes to generate audio data frame streams in the at least two modulation modes; a splicing module configured to splice the audio data frame streams in the at least two modulation modes into an audio data stream; a transmitting module configured to transmit the audio data stream to a mobile terminal in one transmission via an audio interface of the electronic signature token.
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