A cooking apparatus has a cooking chamber, a microwave unit to radiate microwaves to the cooking chamber, a convection unit to supply hot air to the cooking chamber, a grill unit to supply radiant heat to the cooking chamber, an input unit to receive a cooking command and a control unit to perform a cooking corresponding to the received cooking command by performing one of a first heating stage and a second heating stage, and after performing the one of the first heating stage and the second heating stage, performing the other one of the first heating stage and the second heating stage. In the first heating stage, the control unit operates the microwave unit and at least one of the convection unit and the grill unit, and in the second heating stage, the control unit operates the grill unit and the convection unit while not operating the microwave unit.

A cooking appliance device, in particular induction cooking appliance device, includes a muffle which has a muffle wall and is configured to define at least partially a cooking chamber. A heating element is provided to heat the muffle wall, with a first sensor unit detecting a temperature of the muffle wall.

In an embodiment, an apparatus includes a radio frequency (RF) generator that is to generate a RF signal, first and second electrodes, and an impedance match module in series between the RF generator and the first electrode. The RF generator detects reflected power from the RF signal applied to a load electrically coupled between the first and second electrodes to change a temperature of the load, the RF signal to be applied to the load until the reflected power reaches a particular value.

An oven appliance may include a cabinet, a heating element, temperature sensor, and controller. The heating element may be within the cabinet to heat a cooking chamber. The temperature sensor may be mounted in thermal communication with the cooking chamber. The controller may be configured to initiate a cooking operation. The cooking operation may include directing the heating element according to a predetermined holiday heating cycle during a first holiday occurrence, collecting a plurality of temperature readings from the temperature sensor during the first holiday occurrence as a first temperature group, determining, following the first holiday occurrence, a temperature deviation from a set reference temperature, the temperature deviation being based on the first temperature group, generating a modified holiday heating cycle based on the determined temperature deviation, and directing the heating element according to the modified holiday heating cycle during a second holiday occurrence following the first holiday occurrence.

An electromagnetic wave shielding film having a wireless energy conversion function is disclosed, which is attached to an exterior surface of the door of a microwave oven and used to absorb electromagnetic waves released by the microwave oven during operation. The electromagnetic wave shielding film comprises: a substrate carrier; a first substrate layer, provided on one side of the substrate carrier, where a wireless energy conversion unit is provided in the first substrate layer and is used to receive the electromagnetic waves and covert the electromagnetic waves to DC electrical energy; and an optically variable assembly, provided on the other side of the substrate carrier, where the optically variable assembly comprises an electrochromic layer and an electrode layer; the electrode layer is used to receive the DC electrical energy from the wireless energy conversion unit and drive the electrochromic layer to change its light transmission property.

The furnace system for controlling of individual temperature through selectively radiating of electromagnetic waves according to the present invention comprises: a heating body unit for heating a melt to a predetermined temperature; a heating sensing unit for selectively measuring the internal temperature of the heating body unit to calculate predetermined temperature information; a heating cover unit that selectively covers the heating body unit to prevent a predetermined heat from being diffused to the outside so that the melt maintains a predetermined temperature; and a radiating unit receiving the predetermined temperature information from the heating sensing unit and selectively irradiating a predetermined electromagnetic wave so that the melt becomes the predetermined temperature.

A defrosting system includes an RF signal source, an electrode proximate to a cavity within which a load to be defrosted is positioned, and a transmission path between the RF signal source and the electrode. The system also includes power detection circuitry coupled to the transmission path and configured repeatedly to take forward and reflected RF power measurements along the transmission path. A system controller repeatedly determines, based on the forward and reflected RF power measurements, a calculated rate of change, and repeatedly compares the calculated rate of change to a threshold rate of change. When the calculated rate of change compares favorably with the threshold rate of change, the RF signal source continues to provide the RF signal to the electrode until a determination is made that the defrosting operation is completed, at which time the RF signal source ceases to provide the RF signal to the electrode.

A heated probe is provided that cooks food from the inside-out in order to help reduce cooking times. The probe may be used within an oven, or it may be used as a standalone cooking source. The probe may include heat control, such that foods may be cooked at a low temperature for extended periods of time without drying out the food. Such heat control may help keep proteins tender to produce a result similar to proteins cooked in a sous vide style.

A probe assembly for a cooking appliance includes an outer case that includes a cap, a body, and retention features that are coupled to each of the cap and the body. A first temperature sensor is operably coupled to the cap of the outer case. A probe is operably coupled to the body of the outer case and is selectively concealed by the cap. A second temperature sensor is operably coupled to the probe. A controller is communicatively coupled to each of the first temperature sensor and the second temperature sensor. The controller is configured to receive a first signal from the first temperature sensor when the cap is directly coupled to the body of the outer case.

A datalogger with a temperature sensor for measuring the temperature of one or more articles during a radio frequency (RF) heating process. The datalogger may be wireless and may store temperature measurements in an internal memory and/or may wirelessly transmit temperature data in real-time. The datalogger may be specifically designed and oriented to maximize temperature measurement accuracy and minimize interference with the RF heating process.