System for displaying time-related occurrence of alarm-type even

Details System for displaying time-related occurrence of alarm-type even System for displaying time-related occurrence of alarm-type even

1984-02-13

1986-04-08

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340526, 340286M, 340506, 340715, G08B 2500

Patent

active

045816050

ABSTRACT:
An information display is provided to denote both (1) specific events, such as alarm of a smoke detector or unauthorized entry into a building, and (2) the time elapsed between successive events. The event identification data are stored in conjunction with data representing the time elaspsed since the occurrence of the previous event. The display can be cleared, and reconstituted at a rate related to the original rate at which the events occurred, selected by the viewer. The information regarding events and time differences can be stored and saved in a memory external to the timed-replay portion of the system.

REFERENCES:
patent: 3641266 (1972-02-01), Stults et al.
patent: 3793623 (1974-02-01), Zambuto
patent: 3806908 (1974-04-01), Bound et al.
patent: 4001807 (1977-01-01), Dallimonti

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