Electric heating – Microwave heating – With control system
Patent
1997-07-11
1998-10-27
Leung, Philip H.
Electric heating
Microwave heating
With control system
219708, 219709, 219746, 219751, H05B 668, H05B 674
Patent
active
058280421
ABSTRACT:
A uniform heating apparatus for a microwave oven and a method thereof which are capable of more uniformly heating food by generating various resonant modes based on the kind of food. The apparatus includes an oscillator unit having a wave guide tube for guiding microwaves generated by a magnetron to a lower portion of a heating chamber formed in a microwave oven main body, a resonant mode conversion unit for converting the microwaves guided to the lower portion of the heating chamber to have various resonant modes, a plurality of sensors for detecting the characteristics of food when the microwaves, the resonant mode of which is converted by the resonant mode conversion unit, are supplied to the food in the heating chamber, and a controller for controlling the oscillator unit and the resonant mode conversion unit in accordance with the characteristics of the food detected by the sensors.
REFERENCES:
patent: 4121078 (1978-10-01), Takano et al.
patent: 4185182 (1980-01-01), Rueggeberg
patent: 4453064 (1984-06-01), Toyoda et al.
patent: 4476362 (1984-10-01), Kusunoki et al.
patent: 5347108 (1994-09-01), Minakawa et al.
patent: 5512736 (1996-04-01), Kang et al.
Choi Joon Sik
Kim Yang Kyeong
Leung Philip H.
LG Electronics Inc.
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