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US 2010/0074457 A1Published application
Sound reproducing system with superimposed digital signal
AssigneeActiwave AB
InventorRisberg Pär Gunnars
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AssigneeActiwave AB
InventorRisberg Pär Gunnars
Estimating the term…
The invention provides a Hi-fi sound system for the digital transfer of sound information from a digital signal source (2) to one or several loudspeaker enclosures with integrated amplifiers is described. The system includes a control unit (4) that superimposes a digital signal corresponding to the sound information for all the loudspeakers onto a DC supply current for the amplifier units (9) of the loudspeakers (7). The loudspeakers may be connected in a chain, one after another, or by branching, and the cables (10) may contain as little as two leads and the connection to the control unit (4) and the loudspeakers (amplifier units 9) may be of a simple snap-on or screw type.
1-13. (canceled)
A sound reproduction system for Hi-fi, with digital signal transfer from a playback unit via a control unit to one or more active loudspeakers, each including or arranged beside an amplifier unit, wherein the control unit is arranged to control sound parameters and send both a digital sound information signal and a power signal for powering the amplifier units, and that the control unit is arranged to superimpose the single ended or differential digital signal together with the power signal on at least one common lead in a cable, the cable comprising at least two leads.
Dependencies are inferred from the claim text.