Title:
DEVICE AND METHOD FOR TRANSMITTING, RECEIVING AND PROCESSING AUDIO CONTROL SIGNALS IN INFORMATION SYSTEMS
Document Type and Number:
WIPO Patent Application WO2003013041
Kind Code:
A3
Abstract:
The invention relates to a device for transmitting, receiving and processing digital audio signals which are supplied to the individual loud speaker units (4) by means of a common data bus (7). The supply of the units (4) by the data bus (7) is thus divided, the data is modulated according to the supply voltage in order to reduce the number of lines and so that the power input can be supplied centrally and monitoring and redundance, as required in security related systems, can be acquired by simple means, since only one part of the power supply must be monitored and embodied in a redundant manner.
Inventors:
KLOTZ THOMAS (DE)
EIBLMEIER ROBERT (DE)
EIBLMEIER ROBERT (DE)
Application Number:
PCT/DE2002/002674
Publication Date:
October 02, 2003
Filing Date:
July 19, 2002
Export Citation:
Assignee:
KLOTZ DIGITAL AG (DE)
KLOTZ THOMAS (DE)
EIBLMEIER ROBERT (DE)
KLOTZ THOMAS (DE)
EIBLMEIER ROBERT (DE)
International Classes:
H04R27/00; H04R29/00; (IPC1-7): H04R27/00; H04B3/54
Foreign References:
| EP0909112A1 | 1999-04-14 | |||
| US5406634A | 1995-04-11 | |||
| US4829570A | 1989-05-09 | |||
| CA2283577A1 | 2001-03-23 |
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