Sound reproducing system with superimposed digital signal
US8879754B2 · kind B2 · utility
3Cited by
13References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 2008 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Aug 11, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2227/003
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A home use 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. 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 to superimpose the single ended or differential digital signal together with the power signal on at least one common lead in a cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.