Wireless digital transmission system for loudspeakers
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United States of America Patent
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Apr 17, 2007
Grant Date -
May 26, 2005
app pub date -
Dec 29, 2004
filing date -
Sep 26, 1997
priority date (Note) -
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Abstract
This invention relates to a wireless digital transmission system for loudspeakers comprising: compression means for the file representing the digital audio signal of the 'compact disc' type, a transmission device comprising means of converting this compressed signal into a series signal moving by packets going to a modulator circuit with phase quadrature and means of transmitting the signals exiting the modulator circuit with phase quadrature to the domestic network for feeding electricity; a receiving device comprising means of connecting to this domestic network and of extracting from the feed electrical signal, by a demodulator with phase quadrature, data packets moving the digital audio signal to convert it into a parallelized digital signal sent to a decompression circuit; means of converting the decompressed digital signals into an analog signal intended to feed a loudspeaker after adequate amplification.
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