In one aspect, the present invention provides a consumer appliance that uses RF energy to heat foods stored in a container that is suitable for RF heating.
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1. A system that uses induction heating to heat food stored in a container, the system comprising: a housing having a door, wherein a cylindrical cavity configured to receive a cylindrical container is formed in the door of the housing and the door is configured to move between an open position in w
1. A system that uses induction heating to heat food stored in a container, the system comprising: a housing having a door, wherein a cylindrical cavity configured to receive a cylindrical container is formed in the door of the housing and the door is configured to move between an open position in which the cavity is accessible to a user of the system and a closed position in which the cavity is not accessible to the user;a cylindrical induction heating coil housed in the door of the housing and configured to provide energy to a container placed in the cavity, wherein the cylindrical induction heating coil is coaxial with the cylindrical cavity and the cylindrical induction heating coil is wrapped around the cylindrical cavity;an oscillator for providing an RF signal;a power generator housed in the housing and coupled to the induction heating coil and to the oscillator, wherein the power generate is configured to amplify the RF signal provided by the oscillator; anda controller configured to control the operation of the power generator. 2. The system of claim 1, further comprising a weight measuring device coupled to the controller, whereinthe controller is further configured to (i) determine whether the weight of a container disposed in the cavity fails to meet a predetermined weight threshold and (ii) as a result of determining that the weight of the container fails to meet the predetermined weight threshold, (a) indicate to the user that the user may not use the system to heat the container and (b) in response to a request from the user to heat the container, ignore the request from the user. 3. The system of claim 1, further comprising: a bar code reader configured to provide to the controller data corresponding to a container disposed in the cavity, whereinthe controller is further configured such that, prior to initiating a heating cycle for heating the container, the controller (a) uses the data from the bar code reader to determine whether the container is adapted to be heated by the appliance, (b) sets a power level of the power generator based on a power level identifier included in said data from the bar code reader, and (c) sets a heating duration based on a heating duration identifier included in said data from the bar code. 4. The system of claim 1, wherein the door is configured to pivot around an axis between the open position in which the cavity is accessible to a user of the system and the closed position in which the cavity is not accessible to the user. 5. An appliance for heating food stored in a container using a radio-frequency induction heating coil, comprising: a housing having a door, wherein a cylindrical cavity being configured to receive a cylindrical container is formed in the door of the housing and the door is configured to move between an open position in which the cavity is accessible to a user of the system and a closed position in which the cavity is not accessible to the user;a cylindrical induction heating coil housed in the door of the housing, wherein the cylindrical induction heating coil is coaxial with the cylindrical cavity and the cylindrical induction heating coil is wrapped around the cylindrical cavity; anda controller configured to control the amount of power provided to the cylindrical induction heating coil. 6. The appliance of claim 5, further comprising: a bar code reader configured to provide to the controller data corresponding to a container disposed in the cavity, whereinthe controller is further configured such that, prior to initiating a heating cycle for heating the container, the controller (a) uses the data from the bar code reader to determine whether the container is adapted to be heated by the appliance and (b) as a consequence of determining that the container is not adapted to be heated by the appliance, ignores any request from a user of the appliance to heat the container. 7. The appliance of claim 6, wherein the controller is further configured such that, prior to initiating a heating cycle for heating the container, the controller further (c) sets a power level of the power generator based on a power level identifier included in said data from the bar code reader, and (d) sets a heating duration based on a heating duration identifier included in said data from the bar code. 8. The appliance of claim 5, wherein the door is configured to pivot around an axis between the open position in which the cavity is accessible to a user of the system and the closed position in which the cavity is not accessible to the user. 9. A system that uses induction heating to heat food stored in a container, the system comprising: a housing having a door, wherein the door is configured to move between an open position in which a cylindrical cavity configured to receive a cylindrical container is accessible to a user of the system and a closed position in which the cavity is not accessible to the user;a cylindrical induction heating coil housed in the housing and configured to provide energy to a container placed in the cavity, wherein the cylindrical induction heating coil is coaxial with the cylindrical cavity and the cylindrical induction heating coil is wrapped around the cylindrical cavity;a power generator housed in the housing and coupled to the induction heating coil; anda controller housed in the housing and configured to control the operation of the power generator. 10. The system of claim 9, further comprising a weight measuring device coupled to the controller, wherein the controller is further configured to (i) determine whether the weight of a container disposed in the cavity fails to meet a predetermined weight threshold and (ii) as a result of determining that the weight of the container fails to meet the predetermined weight threshold, (a) indicate to the user that the user may not use the system to heat the container and (b) in response to a request from the user to heat the container, ignore the request from the user. 11. The system of claim 9, further comprising a bar code reader configured to provide to the controller data corresponding to a container disposed in the cavity, wherein the controller is configured such that, prior to initiating a heating cycle for heating the container, the controller (a) uses the data from the bar code reader to determine whether the container is adapted to be heated by the appliance, (b) sets a power level of the power generator based on a power level identifier included in said data from the bar code reader, and (c) sets a heating duration based on a heating duration identifier included in said data from the bar code. 12. The system of claim 9, wherein the door is configured to pivot around an axis between the open position in which the cavity is accessible to a user of the system and the closed position in which the cavity is not accessible to the user.
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