Control apparatus

Details Control apparatus Control apparatus

2006-04-18

2006-04-18

Sircus, Brian (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Switch actuation

Reexamination Certificate

active

07030516

ABSTRACT:
A control apparatus has a momentary switch. In response to an operation performed on a momentary switch, a latch circuit (13) switches a latch output signal to be outputted to a microcomputer (11) from “high” to “low” and keeps the latch output signal “low”. A capacitor (C) supplies an electric power to the latch circuit (13) when supply of the electric power is cut off. A reset circuit (15) sends a signal to the latch circuit (13) in response to an input of a high-level latch reset signal from the microcomputer (11) so that the latch circuit (13) switches the latch output signal from “low” to “high”. If the latch output signal is “high” when the microcomputer (11) detects that the switch (SW) is operated, a transistor (Tr) is turned on under the control of the microcomputer (11). If the latch output signal is “low” when the microcomputer (11) detects that the switch (SW) is operated, the transistor (Tr) is turned off under the control of the microcomputer (11). The microcomputer (11) outputs the high-level latch reset signal to the reset circuit.

REFERENCES:
patent: 5051849 (1991-09-01), Fukushima et al.
patent: 5844185 (1998-12-01), Shih
patent: 6388343 (2002-05-01), Michigami et al.
patent: 11301064 (1999-11-01), None
patent: 2000-157032 (2000-06-01), None

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