Oven cooking control system with scanning display
AssigneeThe Tappan Company
InventorSilas E. Carmean
Life of this patent
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Abstract
A microwave oven with a microprocessor control which contains stored recipe information. The user enters food type, quantity to be cooked, and size or doneness desired. Data for cooking a large number of different foods may be stored. The specific food item to be cooked is user selected by touching and holding one of ten food category pads. Food items within the category selected then "scroll" through an alphanumeric display. The item shown in the display when the food pad is released is the one selected for cooking. Following food selection, the user is prompted, via the alphanumeric display, to enter such additional data as quantity, size and doneness desired.
Claims8
In a cooking control system comprising an alphanumeric display, a keyboard having a plurality of data entry pads, and a programmed control system connected to said data entry pads and alphanumeric display for producing a timed control output for the operation of a microwave oven:
- the improvement wherein said data entry pads include a plurality of food entry pads each corresponding to a separate food type, said control means comprising means responsive to operation of said food entry pads for controlling said alphanumeric display to continually sequentially display the names of a plurality of different food items of the food type corresponding to the operated food entry pad, and to control the cessation of said sequential display in response to a further determined signal from said keyboard, said control means controlling the duration of said timed control output as a function of the food item displayed on said alphanumeric display at the time of said further determined signal.
In a cooking control system comprising an alphanumeric display, a keyboard having a plurality of data entry pads, and a programmed control system connected to said data entry pads and alphanumeric display for producing a timed control output for the operation of a cooking control system:
- the improvement wherein said data entry pads include a plurality of food entry pads each corresponding to a separate food type, said control means comprising means responsive to operation of said food entry pads for controlling said alphanemeric display to continually sequentially display the names of a plurality of food items of the food type corresponding to the operated food entry pad, and to control the cessation of said sequential display in response to a further determined input from said keyboard, said control means further comprising means for receiving quantities from said data entry pads corresponding to the desired doneness or size, and quantity, of food items to be cooked, said control system further comprising means for providing an output control duration T, for energizing said cooking control system, of a duration:
- T=(M.times.Q.times.(1+K.times.D)+B).times.(V)
- where M and B are linear equation constants dependent upon the selected food items, D is a constant that is a function of the selected food item determining the spread between the low and high doneness/size levels, K is a doneness/size integer which may be -1, 0 or +1, Q is a parameter dependent upon food quantity to be cooked, and V is a variable dependent upon the operating voltage of the cooking control system.
Dependencies are inferred from the claim text.