Digital data transfer via audio signal conductors
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United States of America Patent
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Jul 23, 2013
Grant Date -
Jan 19, 2012
app pub date -
Jul 18, 2010
filing date -
Jul 18, 2010
priority date (Note) -
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Abstract
An electro-acoustic transducer or a device into which an electro-acoustic transducer is incorporated has at least two audio signal conductors through which the electro-acoustic transducer or device may be coupled to another device to convey analog audio signals representing sounds at a time when the other device places a relatively low DC bias voltage across the at least two audio signal conductors, and to be operated as a digital serial bus to exchange pieces of digitally-encoded data concerning the electro-acoustic transducer at a time when the other device places a relatively high DC bias voltage across the at least two audio signal conductors.
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