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EP0052871A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Programmable electronic cooking apparatus
Assignee: Toshiba Corp
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Filing: 1981-11-20
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Granted: —
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Expires: 2001-11-20
Abstract
Abstract When a door (6) of a microwave oven is opened during a programmed cooking operation, a door open monitoring circuit (21) provides a door open signal to a microcomputer (23) so that the microcomputer (23) interrupts to execute the programmed cooking operation. A control circuit (7) measures time lapsed from the re-closure of the door (6) to provide the microcomputer (23) with a control signal indicative of whether a cooking switch has been operated within a predetermined period of time after the re-closure of the door (6). In response to the control signal, the microcomputer (23) executes the remaining programmed cooking operation in case that the cooking switch has been operated within the predetermined period of time or clears it otherwise. The function of the control circuit (7) may be performed by the microcomputer (23).
Inventors
- 👤 Sadao Takeda
- 👤 Yooichi Kyoori
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 22:55
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/66; H05B6/68; H05B6/6414; H05B6/6417
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
173 words
An programmable electronic cooking apparatus having a food cooking chamber (4), an opening for putting food (2) into and taking it out of said chamber, a door (6) provided on said opening, means (20) for supplying food cooking energy to said chamber, and means (5) coupled to a cooking switch, for controlling said energy supply means (10, 17, 20, 30) so that the cooking of food can proceed according to a programmed cooking operation, comprising: means (21) for detecting whether said door (6) is opened during the cooking operation and for interrupting the execution of the programmed cooking operation; timer means (47) for measuring time elapsed from the re-closure of the door (6); and means (53 to 56, 43, 57) for causing said controlling means (5) to execute the remaining programmed cooking operation, if said cooking switch has been operated during a predetermined period of time measured by said timer means (47), while clearing the remaining programmed cooking operation if the period of time has been elapsed without operation of said cooking switch.
Claim 2
Dependent Claim
173 words
An programmable electronic cooking apparatus having a food cooking chamber (4), an opening for putting food (2) into and taking it out of said chamber, a door (6) provided on said opening, means (20) for supplying food cooking energy to said chamber, and means (5) coupled to a cooking switch, for controlling said energy supply means (10, 17, 20, 30) so that the cooking of food can proceed according to a programmed cooking operation, comprising: means (21) for detecting whether said door (6) is opened during the cooking operation and for interrupting the execution of the programmed cooking operation; timer means (47) for measuring time elapsed from the re-closure of the door (6); and means (53 to 56, 43, 57) for causing said controlling means (5) to execute the remaining programmed cooking operation, if said cooking switch has been operated during a predetermined period of time measured by said timer means (47), while clearing the remaining programmed cooking operation if the period of time has been elapsed without operation of said cooking switch.
Claim 3
Dependent Claim
24 words
The electronic cooking apparatus according to claim 1, wherein said detecting means (21) includes a door open monitoring switch interconnected with the door (6).
Claim 4
Dependent Claim
47 words
The electronic cooking apparatus according to claim 1, wherein said controlling means (5) includes: a microcomputer (23); and a control circuit (7) for forming a.clear signal for clearing said remaining programmed cooking operation and supplying it to a clear pulse input pin (34) of said microcomputer (23).
Claim 5
Dependent Claim
77 words
The electronic cooking apparatus according to claim 3, wherein said control circuit (7) includes: means (47) for counting a digit signal in response to a door re-closure signal provided from said microcomputer (23); an AND gate (43) to which a carry signal from said counting means (47) and the cooking signal are fed; and means (57) for supplying the output of said AND gate (43) to the clear pulse input pin (34) of said - microcomputer (23).
Claim 6
Dependent Claim
67 words
The electronic cooking apparatus according to any one of the preceding claims, wherein said energy supply means (10, 17, 20, 30) includes a power source (10), a thyristor (17), a voltage regulator (30) and a magnetron (20), and said means (5) controls the conduction of said thyristor (17) so that cooking temperature of the food can reach a preset value in accordance with a programmed cooking operation.
References Cited (Backward Citations)
No citation records indexed.
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