Food preparation
AssigneeGoji Limited
InventorsEran Ben-Shmuel, Alexander Bilchinsky, Udi Damari, Omer Einav, Benny Rousso, Shlomo Ben-Haim
Life of this patent
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Abstract
Devices and methods for RF heating of food, using techniques which allow uniformity and/or controlled non-uniformity.
Claims27
A method for controlling a radio frequency (RF) heating device to heat an object in a cavity, the RF heating device comprising a plurality of antennas configured to feed RF energy into the cavity, the method comprising:
- applying, via the plurality of antennas, RF energy at a plurality of frequencies to the cavity according to a heating profile;
- receiving feedback from the cavity in response to application of the RF energy, wherein the feedback includes at least one of:
- feedback indicating an RF energy absorption efficiency by the object at each of the plurality of frequencies;
- feedback indicating power coupled from one of the plurality of antennas to another one of the plurality of antennas;
- feedback indicating an RF energy return loss at each of the plurality of frequencies;
- feedback indicating an RF energy transfer coefficient of the cavity;
- or
- feedback indicating s-parameters as a function of frequency;
- and
- changing the heating profile based on the feedback by changing at least a phase of an input signal provided to at least one of the plurality of antennas.
A method of controlling a radio frequency (RF) heating oven to cook a food product, the RF heating oven comprising an antenna array, the method comprising:
- heating the food product using the RF heating oven;
- receiving RF feedback on a heating process from the RF heating oven;
- and
- automatically changing a heating profile of the RF heating oven in response to the RF feedback by changing at least a phase of an input signal provided to the antenna array.
A method for controlling a radio frequency (RF) heating device to heat an object in a cavity, the RF heating device comprising a plurality of antennas configured to feed RF energy into the cavity, the method comprising:
- applying, via the plurality of antennas, RF energy at a plurality of frequencies to the cavity according to a heating profile;
- receiving feedback from the cavity in response to application of the RF energy, wherein the feedback does not include temperature measurements;
- and
- changing the heating profile based on the feedback that does not include temperature measurements by changing at least a phase of an input signal provided to at least one of the plurality of antennas.
Dependencies are inferred from the claim text.