Method for automatically controlling cooking by using a vapor se

Details Method for automatically controlling cooking by using a vapor se Method for automatically controlling cooking by using a vapor se

1996-05-23

1998-04-28

Leung, Philip H.

Electric heating

Microwave heating

With control system

219705, 219757, 99325, H05B 668

Patent

active

057447853

ABSTRACT:
A method for automatically controlling cooking by using a vapor sensor in a microwave oven is disclosed. The method for automatically controlling cooking air-cools the cavity for a predetermined time by means of the driving of a fan motor during the automatic cooking operation, and respectively compares magnitude and phase of a signal-processed detecting signal supplied from a detecting signal processing circuit section with magnitude of reference detecting signal and values of reference phases in order to discriminate the polarity of the signal-processed detecting signal. Also, the executing time of the air-cooling operation related to a cooking chamber, which is additionally provided in response to the discriminated polarity, is discriminately adjusted. Therefore, an overcooked or an under-cooked result, caused by an additional air cooling time having a fixed value, is prevented so that the user's expectation of reliability concerning the performance and the life span of the microwave oven are significantly enhanced and satisfied.

REFERENCES:
patent: 4383158 (1983-05-01), Niwa
patent: 4791263 (1988-12-01), Groeschel, Jr.
patent: 5319171 (1994-06-01), Tazawa
patent: 5395633 (1995-03-01), Lee
patent: 5436433 (1995-07-01), Kim
patent: 5445009 (1995-08-01), Yang
patent: 5464967 (1995-11-01), Gong
patent: 5552584 (1996-09-01), Idebro

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