Audio communication system for a life safety network
First Claim
1. An audio communication system operative in a life safety network having a plurality of zones interconnected by respective lines for providing audio warnings for a particular zone in said life safety network, the audio communication system comprising:
- an audio line for transmitting audio data in a group of packets distributed over a plurality of audio channels to provide differential digital data transmission;
a central processor for controlling transmission of said audio data along said audio line, said central processor including means for selecting a particular channel of said plurality of audio channels for transmitting said audio data;
an audio source, coupled to said audio line, for placing an audio packet on said particular channel selected by said central processor;
an audio amplifier, coupled to said audio line, for receiving a control signal from said central processor that identifies said particular channel and, responsive to said control signal, for retrieving and amplifying said audio packet from said particular channel of said plurality of audio channels; and
an audio device for converting said amplified audio packet to an audible sound.
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0 Petitions
Accused Products
Abstract
There is provided an audio communication system for a life safety system. The audio communication system includes an audio data line having a plurality of audio channels for transmitting audio data and a CPU for controlling the transmission of the audio data along the audio data line. An audio source module and an audio amplifier module are coupled to the audio data line. To produce an audible sound, the CPU selects a particular channel of the plurality of audio channels for transmitting the audio data and sends this selection to the audio source module. The audio source module then places one or more audio packets, corresponding to the audible sound, on the selected channel. The audio amplifier module then receives a signal from the CPU that identifies the selected channel and, thus, the audio amplifier module will know which channel to find the audio packets. The audio packets are converted and directed to speakers to produce the audible sound.
56 Citations
18 Claims
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1. An audio communication system operative in a life safety network having a plurality of zones interconnected by respective lines for providing audio warnings for a particular zone in said life safety network, the audio communication system comprising:
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an audio line for transmitting audio data in a group of packets distributed over a plurality of audio channels to provide differential digital data transmission; a central processor for controlling transmission of said audio data along said audio line, said central processor including means for selecting a particular channel of said plurality of audio channels for transmitting said audio data; an audio source, coupled to said audio line, for placing an audio packet on said particular channel selected by said central processor; an audio amplifier, coupled to said audio line, for receiving a control signal from said central processor that identifies said particular channel and, responsive to said control signal, for retrieving and amplifying said audio packet from said particular channel of said plurality of audio channels; and an audio device for converting said amplified audio packet to an audible sound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification