Domestic electrical appliance

Details Domestic electrical appliance Domestic electrical appliance

1984-08-03

1987-02-10

Ruggiero, Joseph

Boots, shoes, and leggings

364187, 364400, 371 66, 371 10, G06F 1546, G06F 1100

Patent

active

046427538

ABSTRACT:
In a domestic appliance, such as a washing machine, controlled by a solid state processor 1, it is possible for power supply interference to corrupt the program data stored in the processor or even to lock out the processor. The adverse effects thereof are eliminated by providing a non-volatile back-up memory 11 for storing the program identity and state, and timing means 14, 16, 18 which, in the event of a power failure or processor lock-out, momentarily disconnects the power supply 2 to the processor 1 by means of a switch 3.

REFERENCES:
patent: 3959778 (1976-05-01), Brette
patent: 4227798 (1980-10-01), Steiner
patent: 4393500 (1983-07-01), Imazeki et al.
patent: 4410991 (1983-10-01), Lenart
patent: 4412284 (1983-10-01), Kerforne et al.
patent: 4429366 (1984-01-01), Kennon
patent: 4521847 (1985-06-01), Ziehm et al.
patent: 4551841 (1985-11-01), Fujita et al.

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