Microwave oven and method of controlling the same

Details Microwave oven and method of controlling the same Microwave oven and method of controlling the same

2006-02-21

2006-02-21

Van, Quang (Department: 3742)

Electric heating

Microwave heating

With control system

C219S716000, C363S138000

Reexamination Certificate

active

07002123

ABSTRACT:
A microwave oven and a method of controlling the same. The microwave oven is capable of using a plurality of input powers with different frequencies. The microwave oven includes input power sources, an interrupt generation unit and a control unit. The interrupt generation unit generates interrupt signals with different periods according to the frequencies of the input powers. The control unit cumulatively counts pulses generated on the basis of the interrupt signals outputted from the interrupt generation unit, compares the cumulatively counted value with a reference value, and discriminates the frequencies of the input powers depending on the number of instances where the cumulatively counted value is equal to or greater than the reference value.

REFERENCES:
patent: 4628443 (1986-12-01), Rickard et al.
patent: 55116274 (1980-09-01), None
patent: 58148661 (1983-09-01), None
patent: 62134567 (1987-06-01), None
patent: 02139891 (1990-05-01), None

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