HEADPHONE OR HEADSET AND AUDIO PRODUCING DEVICE TO WHICH THE HEADPHONE OR HEADSET IS INTENDED TO BE CONNECTED
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United States of America Patent
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Issued Date -
Jan 7, 2016
app pub date -
Feb 22, 2013
filing date -
Feb 22, 2013
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Abstract
An audio system comprises an audio producing device and a headphone or a headset. The audio producing device transmits to the headphone or the headset left and right analog signals intended respectively for left or right analog speakers, and transmits to the headphone or the headset a power supply signal. The headphone or the headset comprises at least one digital microphone and means for superimposing digital data, resulting from sound captures performed by each digital microphone, on top of said left analog signal or on top of said right analog signal or on top of said power supply signal. The audio producing device further comprises means for separating the digital data from said left analog signal or from said right analog signal or from said power supply signal for further processing by the audio producing device. The audio producing device further comprises means for superimposing a clock signal intended to drive each digital microphone on top of said left and/or right analog signal. The headphone or the headset further comprises means for separating the clock signal from said left and/or right analog signal to drive each digital microphone.
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