Device and method for transmitting, receiving and processing audio control signals in information systems
First Claim
1. Method for transmitting, receiving, and processing audio signals of an information system (1), consisting of a central unit (2) that receives, transmits, and controls signals digitally;
- at least one loudspeaker unit (4) having at least one loudspeaker (3), at least one bi-directional data bus (7), wherein a high-frequency signal is additionally transmitted with the data flow, which is used to monitor the function of all the connected components (2, 4, 8) of the system; and
the data flow in the data bus (7) is modulated onto the supply voltage.
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Accused Products
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.
56 Citations
20 Claims
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1. Method for transmitting, receiving, and processing audio signals of an information system (1), consisting of
a central unit (2) that receives, transmits, and controls signals digitally; -
at least one loudspeaker unit (4) having at least one loudspeaker (3), at least one bi-directional data bus (7), wherein a high-frequency signal is additionally transmitted with the data flow, which is used to monitor the function of all the connected components (2, 4, 8) of the system; and
the data flow in the data bus (7) is modulated onto the supply voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 17, 18, 19, 20)
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13. Audio system (1) for transmitting, receiving, and processing signals of an information system (1), consisting of
a central unit (2) that receives, transmits, and controls signals; -
at least one loudspeaker unit (4) having at least one loudspeaker (3), at least one data bus (7), wherein digital and/or analog signals are transmitted, received, and controlled;
all of the loudspeaker units (4) are supplied and controlled by the central data memory unit (2);
whereby the control data are modulated onto the supply voltage. - View Dependent Claims (14, 15, 16)
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Specification