Food preparation
AssigneeGoji Limited
InventorsEran Ben-Shmuel, Alexander Bilchinsky, Omer Einav, Benny Rousso, Shlomo Ben-Haim
Life of this patent
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Abstract
A heating profile of a microwave oven is modified using microwaves at a plurality of frequencies. A power of transmission to a cavity of the microwave oven of microwaves is defined at each of the plurality of frequencies. A duration is defined for which the microwaves are transmitted at each of the plurality of frequencies. For each of the plurality of frequencies, a proportion of power input to the cavity that is not output from the cavity is measured. The measured proportions am used to modify the power of transmission at each frequency, the duration of transmission at each frequency or both.
Claims6
A method for modifying a heating profile of a microwave oven using microwaves at a plurality of frequencies that are within a range of 300 MHz to 3 GHz, the method comprising:
- defining a power of transmission to a cavity of the microwave oven of microwaves at each of the plurality of frequencies;
- defining a duration for which said microwaves are transmitted at each of the plurality of frequencies;
- feeding microwave energy via at least one feed of a plurality of feeds into the cavity;
- measuring, for each of the plurality of frequencies, a proportion of power input to the cavity that is not output from the cavity;
- and
- using the measured proportions to modify the power of transmission at each frequency, the duration of transmission at each frequency, or both, wherein the measuring comprises measuring a power coupled to other feeds of the plurality of feeds at each frequency and a return loss to the at least one feed of the plurality of feeds at each frequency.
A method for modifying a heating profile of a microwave oven, the method comprising:
- feeding microwave energy via at least one feed of a plurality of feeds into the cavity;
- heating an object in a cavity of the microwave oven utilizing a plurality of transmitted frequencies that are within a range of 300 MHz to 3 GHz;
- measuring an efficiency of absorption of energy in the object being heated as a function of frequency;
- varying the transmitted frequencies in a controlled manner;
- and
- adjusting a duration of transmission at each said transmitted frequency based on the measured efficiency, wherein the measuring comprises measuring a power coupled to other feeds of the plurality of feeds at each frequency and a return loss to the at least one feed of the plurality of feeds at each frequency.
Dependencies are inferred from the claim text.