Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1993-06-21
1995-09-12
Kostak, Victor R.
Communications: electrical
Condition responsive indicating system
With particular system function
340514, G08B 2900
Patent
active
054500591
ABSTRACT:
Detection system with receptor controlled by an emitter and having a microcontroller and a device to verify the proper functioning of the receptor which includes an additional control circuit connected to the receptor and to a terminal of the microcontroller. The microcontroller includes a generator-programmer which controls at time intervals the emission of a signal to activate the additional control circuit which forces the receptor to assume its non-conducting state, and which analyzes the corresponding instantaneous state of a node of the detector in such a manner as to prevent the control center from directing the control circuit if its instantaneous state is different from the inactive state.
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patent: 4990895 (1991-02-01), Juds
patent: 5151682 (1992-09-01), Marinitsch
Arroubi Mustapha
Lalande Michel G. E.
Kostak Victor R.
Miller John W.
Moulinex (Societe Anonyme)
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