Intelligent speaker controller for a fire alarm system

Details Intelligent speaker controller for a fire alarm system Intelligent speaker controller for a fire alarm system

1997-12-01

2000-08-01

Pope, Daryl

Communications: electrical

Condition responsive indicating system

With particular coupling link

340692, 340628, 340326, 340506, G08B 100

Patent

active

060972890

ABSTRACT:
A speaker controller for a fire alarm system including a control panel and at least one speaker to broadcast tone and/or voice signals during a fire alarm condition acts between the control panel and the at least one speaker. The speaker controller includes a signal recognizer to monitor tone and/or voice signals conveyed to the speaker. Manually actuable switching means are provided to disable the speaker. A reset circuit is responsive to the signal recognizer and resets the switching means thereby to enable the speaker upon a predetermined signal condition being detected by the signal recognizer.

REFERENCES:
patent: 5654690 (1997-08-01), Ishikawa et al.
patent: 5663714 (1997-09-01), Fray

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