Class / Patent application number | Description | Number of patent applications / Date published |
219625000 | Intermediate member condition responsive | 39 |
20090001072 | Induction Heating Cooker - An induction heating cooker including a top plate where a pan is placed; a heating coil for induction heating the pan; an inverter circuit for supplying a high frequency current to the heating coil; an infrared sensor, which is arranged under the heating coil and detects an infrared light radiated from the pan; a light guiding part including an upper opening formed at an upper end facing the top plate and a lower opening formed at a lower end, and guiding the infrared light from the pan to the infrared sensor; and a control unit for controlling an output of the inverter circuit according to an output from the infrared sensor; wherein the light guiding part includes a nonmetallic material part in which the upper opening is formed upper than a lower surface of the heating coil. | 01-01-2009 |
20090095736 | FOOD WARMING DEVICE AND SYSTEM - An apparatus, system and method for warming food by controlled heating of heat retention objects such as cookware items or pellets located on a trivet positioned on a countertop, using heating control units, such as induction heating units, remotely located beneath the countertop. The preferred trivet insulates the countertop against damages, and also includes circuitry enabling the indication or display of its proper positioning on the countertop, and also indicating whether the heating unit is heating the heat retention object. | 04-16-2009 |
20120312804 | AUDIBLE NOISE MANIPULATION FOR INDUCTION COOKTOP - A method for operating an induction cooktop having multiple induction heating coils includes monitoring a characteristic of the heating coils indicative of audible noise generated by simultaneous operation of multiple induction heating coils. Upon indication of audible noise from the monitored characteristic, an operating characteristic of at least one of the induction heating coils is varied so as to change the audible noise into a pre-defined, stored audible noise pattern that is desirous to a consumer or user of the cooktop. | 12-13-2012 |
20130082046 | INDUCTION-HEATING COOKER - An induction-heating cooker includes an infrared sensor for detecting infrared rays emitted from a cooking container, a scorching detecting portion for outputting, when a temperature of the cooking container increases from a first set temperature and exceeds a second set temperature, scorching detection information based on infrared detection information of the infrared sensor in a heating mode in which a power can be set, and a loading detecting portion for detecting addition of a load such as, for example, a material to be cooked based on a change of the infrared detection information. Even if the scorching detecting portion outputs the scorching detection information before a cooking time measured from the start of a heating operation reaches a first set time, a controller continues the heating operation. If the loading detecting portion detects that the load has been added, the measured cooking time is cleared and measurement thereof is restarted. | 04-04-2013 |
20130200069 | CONTROL METHOD FOR AN INDUCTION COOKING APPLIANCE - A system and method of controlling an induction cooking appliance based on a feedback signal. A feedback signal sampling time interval may be triggered when a power control signal has a magnitude of zero. The feedback signal sample may be used to calculate a status factor and the appliance may be controlled based on the calculated status factor. | 08-08-2013 |
20140076886 | INDUCTION HOB - An induction hob ( | 03-20-2014 |
20160174297 | A METHOD AND DEVICE FOR DETERMINING THE SUITABILITY OF A COOKWARE FOR A CORRESPONDING INDUCTION COIL OF AN INDUCTION COOKING HOB | 06-16-2016 |
219626000 | Load sensing | 20 |
20090057299 | INDUCTION COOKING APPLIANCE AND A METHOD FOR CHECKING THE COOKING CAPABILITIES OF A PIECE OF COOKWARE - The present invention relates to induction cooking appliances which provide a user with an improved set of information concerning the cooking capabilities of a piece of cookware to be used in conjunction with said appliance. In a further aspect, the present invention concerns an improved method for checking the cooking capabilities of a piece of cookware to be used in conjunction with an induction cooking appliance. | 03-05-2009 |
20090120928 | Apparatus and method for induction heating - Disclosed is an apparatus and method for induction heating. The induction heating cooker determines an existence of a vessel and determines material and a bottom size of the vessel by using resonance voltage, which is applied to a heating coil for heating the vessel, so that a proper control operation is performed corresponding to the existence of the vessel, the material and the bottom size of the vessel. | 05-14-2009 |
20100096385 | METHOD FOR DETECTING THE PRESENCE OF A COOKING VESSEL ON AN INDUCTION COOKING HOB AND HOB USING SUCH METHOD - A method for detecting the presence of a cooking vessel on an induction heating element is disclosed. The induction element is placed below a glass surface and a conductive electrode placed below the glass surface to detect if a cooking utensil is placed on the induction heating element. The electrode measures capacitance, which indicates to the user whether the cooking utensil is present on one or more induction heating elements. After activation by a user, a second detection of the cooking utensil is accomplished by feeding power to the induction heating element and by assessing at least an electrical parameter of a power circuit thereof. | 04-22-2010 |
20100133260 | METHOD FOR CONTROLLING AN INDUCTION HEATING SYSTEM OF A COOKING APPLIANCE - A method for controlling an induction heating system of a cooking appliance provided with an induction coil, particularly for controlling it in connection with a predetermined working condition, comprises measuring the value of one electrical parameter of the induction heating system, feeding a computing model with actual switching frequency signals in order to estimate a temperature indicative of the thermal status of the heating system and to provide an estimated value of the electrical parameter, and comparing the measured electrical parameter with the estimated one and tuning the computing model on the basis of such comparison. | 06-03-2010 |
20100147832 | INDUCTION COOKWARE IDENTIFYING - An induction cooking system including one or more methods or apparatus for identifying items of cookware. The identifying may include identifying whether in use, the temperature of the outside surface of the element of cookware is significantly lower than the temperature of the inside surface. The methods may include one or more of measuring impedance, communicating information by RF radiation, or measuring reactance. | 06-17-2010 |
20100181304 | METHOD FOR DETECTING THE PAN SIZE IN INDUCTION COOKING HOBS AND INDUCTION COOKING HOB FOR CARRYING OUT SUCH METHOD - A method for detecting the pan size and/or position in induction cooking hobs comprises providing at least a sensing circuit associated to a magnetic field concentrator, particularly a ferrite bar, and assessing an electrical parameter thereof correlated to the variation of the magnetic flux. | 07-22-2010 |
20110108547 | Food Heater - 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. | 05-12-2011 |
20120318786 | COOK TOP HAVING AT LEAST ONE COOKING ZONE AND METHOD FOR OPERATING A COOK TOP - In a method for operating a cooking zone of a cook top, wherein the cooking zone is formed by at least two cooking sub-zones and each cooking sub-zone can be heated by at least one heating unit, with the heating units arranged adjacent to each other without overlapping such that a cohesive heatable surface is formed during a joint operation of the cooking sub-zones, the cooking sub-zones are operated as a single cooking zone in a first operating mode, and occupancy of a cooking sub-zone by at least one food preparation vessel is detected in the first operating mode, with an occupancy detection phase being started in a user-defined manner. | 12-20-2012 |
20130248516 | COOKING HOB WITH A BALANCE SYSTEM AND A METHOD FOR ADJUSTING THE TEMPERATURE OF A COOKING VESSEL - The present invention relates to a cooking hob ( | 09-26-2013 |
20130248517 | INDUCTION HEATING COOKING APPARATUS AND CONTROL METHOD THEREOF - An induction heating cooking apparatus and a control method thereof are provided. A vessel can be effectively heated by using a plurality of heating coils regardless of a position of the vessel. By connecting a plurality of heating coils to a smaller amount of inverters through relays, only a heating coil on which a vessel is placed, among the plurality of heating coils, can be heated. Also, by connecting the heating coils in series, a current flowing in the heating coil can be lowered, and thus, a rated current of the inverter can be lowered. Also, by connecting relays and heating coils such that a larger amount of heating coils are operated, while minimizing the amount of inverters, manufacturing cost can be reduced, operation efficiency can be increased, and stability of the cooking apparatus can be enhanced. | 09-26-2013 |
20140014650 | INDUCTION COOKING HOB WITH A POT DETECTION DEVICE AND A METHOD FOR OPERATING AN INDUCTION COOKING HOB - An induction cooking hob with a pot detection device. The hob includes a cooking surface having cooking areas and/or cooking zones. The hob includes a user interface having a switch element and a display. The hob includes a control unit for controlling the cooking area(s) and/or the cooking zone(s). The pot detection device checks, if a cooking vessel is placed on the cooking area(s) and/or cooking zone(s). The control unit switches off the cooking area(s) and/or cooking zone(s), if the pot detection device has identified that the cooking vessel has been removed from the cooking area(s) and/or the cooking zone(s). The control unit stores a cooking mode of the cooking area(s) and/or cooking zone(s), which have been switched off. The display indicates that the cooking area(s) and/or cooking zone(s) have been switched off. The switch element restarts the cooking area(s) and/or cooking zone(s) in the same cooking mode. | 01-16-2014 |
20150083712 | INDUCTION COOKING HOB WITH A PLURALITY OF INDUCTION COILS - The present invention relates to an induction cooking hob ( | 03-26-2015 |
20150296570 | INDUCTION COOKING TOP - The present disclosure relates to an induction cooking top comprising a system adapted to modify the control of the presence of the pan on the induction cooking top, upon a command by the user. | 10-15-2015 |
20150308694 | A COOKING HOB INCLUDING A USER INTERFACE - A cooking hob includes a transparent or semi-transparent top panel and a cooking zone with a pot detector. A user interface is below the top panel and includes touch switches and a touch slide. A light source corresponds with the touch switch and the cooking zone. The light source indicates detection of a pot on the cooking zone by a first light signal during a predetermined time interval and indicates an activated state of the cooking zone by a second light signal and indicates the selected cooking zone and the activated state of the touch slide element by the first light signal. The touch slide is for adjusting the power and/or temperature of the indicated cooking zone within the time interval. The touch switch is for selecting the cooking zone and activating the touch slide. The touch slide is for adjusting the power and/or temperature of the selected cooking zone. | 10-29-2015 |
20150334785 | MENU-BASED COOKING APPLIANCE - A cooking apparatus including a heating element; a user-interface mechanism having a user-input for receiving at least one input from a user and a display for presenting at least one instruction to the user; and a controller configured to perform a recipe. The recipe includes an instruction phase, the instruction phase including operating the display to present an instruction to the user until at least one event occurs, the event selected from the group of events consisting of a first predetermined time elapsing and an input being received, and an execution phase, the execution phase including operating the heating element at a predetermined temperature or power level until a second predetermined time has elapsed. | 11-19-2015 |
20160021708 | INDUCTION HEATING COOKER - An induction heating cooker is provided that has a plurality of heating coils arranged under a top plate, that has power consumption, heat generation, and unnecessary radiation suppressed at the time of detection of a load, and that requires a short time for detection of a load. In the induction heating cooker of this disclosure, two or more heating coils are at the same time selected depending on a position of an area operated on the operation section. The operation detecting section performs the load detection only for the heating coils selected by an operation on the operation section. By using such a configuration, a user can select heating coils to be used out of a plurality of heating coils in advance. A load detection operation is not performed for heating coils other than the selected heating coils. | 01-21-2016 |
20160029439 | INDUCTION HEATER - An induction heater includes a plurality of heating coils, a plurality of inverters, a plurality of switching circuits, command unit, sensor group, and container detection unit. The number of inverters supplying a high-frequency current to the heating coils is less than the number of heating coils. Each of the switching circuits switches an electric path of each of the heating coils such that each heating coil is connected or not connected to any of the inverters. The command unit controls driving of the inverters and switching of the switching circuits. Each sensor in the sensor group detects a response of a resonance circuit including the heating coil relative to power supply from the inverters. The container detection unit detects whether or not heating target is placed on the heating coil based on an output of the sensor. This enables to retain safety and reduce cost of the induction heater equipped with the plurality of heating coils. | 01-28-2016 |
20160037585 | A METHOD FOR ASSIGNING INDUCTION COILS OF AN INDUCTION COOKING HOB AND AN INDUCTION COOKING HOB - An induction cooking hob and method for assigning induction coils of the hob, so that each coil corresponds with a unique number or identity. The method includes; setting a load onto the hob, so that the load covers only one of the coils, which is provided for a first unique number or first identity; activating a pot detection device for all coils of hob; identifying the coil covered by the load; assigning the first number or identity to the covered coil; storing the unique number or identity in conjunction with the covered induction coil; setting the load onto a further one of the coils, which is provided for a second unique number or second identity; repeating the steps c) to f) for the further coil and second number or identity; and repeating the steps b) to f) for all other coils and corresponding unique numbers or corresponding identities. | 02-04-2016 |
20160095168 | SYSTEM AND METHOD FOR DETECTING VESSEL PRESENCE FOR AN INDUCTION HEATING APPARATUS - Systems and methods for detecting vessel presence for an induction heating apparatus are disclosed. A detector circuit generates an output signal based on a feedback signal corresponding to a signal, such as current, flowing through an induction heating coil. The output signal has low frequency components that are averaged over multiple integer periods and compared to a reference value to determine the presence or absence of a vessel on the induction heating coil. | 03-31-2016 |
20160150600 | INDUCTION HOB AND METHOD FOR CONTROLLING AN INDUCTION HOB - An induction hob has a hob plate, a plurality of induction heating coils arranged under the hob plate and a plurality of sensor coils arranged under the hob plate. The induction heating coils are rectangular, wherein at least two induction heating coils are arranged one behind the other and at least three induction heating coils are arranged one next to the other. Two adjacent induction heating coils form an adjacent region with one another in which the two induction heating coils lie with their adjacent sides. At least one sensor coil is arranged in each adjacent region, wherein precisely a single sensor coil is provided in a spacing direction from the one induction heating coil to the adjacent induction heating coil. | 05-26-2016 |
219627000 | Temperature | 12 |
20090014438 | INDUCTION HEATING COOKING DEVICE - There is provided an induction heating cooking device capable of enhancing detection sensitivity of higher temperatures in cases of using a small amount of oil and capable of preventing reduction of the heating output in cases of cooking at relatively lower temperatures. | 01-15-2009 |
20090294437 | Device for heating up a heating element - A device, in particular, for inductively heating up a heating element by means of an inductor and an element for recording a reference quantity which is dependent on the temperature of the heating element and derived from the electric quantity of the inductor in such a way that it makes it possible to form the reference value from the reference quantity and to adjust the temperature according to the reference quantity adjustment by means of the reference value. The aim of said invention is to carry out a reliable adjustment of a water temperature or of a cooked product even at extreme conditions or when the reference value is incorrect. For this purpose, the device comprises a correction means for correcting the reference value. | 12-03-2009 |
20090314769 | HOB ALLOWING THE TEMPERATURE OF A CULINARY ARTICLE TO BE DETECTED - The invention relates to a hob ( | 12-24-2009 |
20100102054 | INDUCTION HEATING DEVICE - An induction heating device includes a top plate, a thermo-sensitive device, a temperature detector, a coil, a controller, and a light-emitting section. The top plate places thereon a cooking utensil containing material to be cooked. The thermo-sensitive device changes its electrical characteristics with the temperature of the cooking utensil. The temperature detector detects the temperature of the cooking utensil based on the electrical characteristics of the thermo-sensitive device. The coil heats the cooking utensil. The controller controls the coil based on the temperature information of the temperature detector, thereby controlling an amount of the electric heating power to be supplied to the cooking utensil. The light-emitting section emits visible light to the area over the thermo-sensitive device. The light from the light-emitting section illuminates the area over the thermo-sensitive device through the top plate. | 04-29-2010 |
20110089162 | Induction-Based Heating Appliances Employing Long Wave Magnetic Communication - Apparatus, methods and systems are provided for measuring and controlling the temperature of a heatable object used to warm or cook food, using transmitters and receivers communicating between each other and/or with heaters, such as induction or direct heaters, using long-wave length magnetic communication (LWMC). | 04-21-2011 |
20110290787 | INDUCTION HEATING AND CONTROL SYSTEM AND METHOD WITH HIGH RELIABILITY AND ADVANCED PERFORMANCE FEATURES - An induction heating and control system and method have enhanced reliability and advanced performance features for use with induction cooking devices, such as induction heating ranges. Enhanced performance is facilitated via the use of an induction heating system which integrates voltage management, power management, thermal management, digital control sensing and regulation systems, and protection systems management. | 12-01-2011 |
20130140297 | INDUCTION HEATING APPARATUS - In an induction heating apparatus, an infrared-ray detection portion includes an infrared-ray reception portion adapted to receive infrared rays radiated from an object to be heated, an amplification portion adapted to amplify a detection signal from the infrared-ray reception portion to form an infrared-ray detection signal, and a temperature detection portion adapted to detect the temperature of the infrared-ray detection portion and to output the temperature to the control portion. The control portion is adapted to correct the infrared-ray detection signal to form an infrared-ray real signal, when the temperature of the infrared-ray reception portion is equal to or higher than a temperature to be detected by the infrared-ray detection portion, based on information about a negative signal superimposed on the infrared-ray detection signal outputted from the infrared-ray detection portion, which is negative-signal information about the negative signal with the reverse polarity from that of the infrared-ray detection signal. | 06-06-2013 |
20140158678 | INDUCTION COOKING DEVICE FOR TEMPERATURE-CONTROLLED COOKING - The invention relates to a method for determining and regulating the temperature of an article with inductive properties which is heated inductively by means of an induction device, wherein the induction device contains an induction coil, means for producing an induction resonant circuit and a support element arranged above the induction coil and having a first side, which acts as support face for the article, and a second side, which is directed towards the inductive coil. At least one temperature sensor is fitted to the second side. The resonant frequency of the induction resonant circuit is measured via detection means and the temperature of the article is calculated from the measured resonant frequency, wherein the resonant frequency is related to the temperature of the article by virtue of a mathematical function, and the function is determined by determining at least two absolute temperature calibration values of the article at respectively different resonant frequencies. The temperature calibration values are calculated from temperature measured values of the sensor. | 06-12-2014 |
20140263287 | TEMPERATURE DETECTION SYSTEM FOR FOOD CONTAINER INDUCTION HEATING SYSTEM AND METHOD - A temperature detection system for detecting temperature within a metallic can during heating is provided. The system includes an induction heating coil configured to generate an alternating magnetic field, and a hermetically sealed can positioned within the magnetic field generated by the induction coil. At least a portion of the sealed can is formed from a metallic material, and the sealed can includes a food product within the can. The magnetic field causes resistive heating of the metallic material of the sealed can. The system includes a temperature sensing element located within the sealed can configured to generate a signal indicative of the temperature of the food product during heating and a memory device communicably coupled to the temperature sensing element configured to store data related to the signal received from the temperature sensing element. | 09-18-2014 |
20150008216 | Cooking Hob and Operation Method Thereof | 01-08-2015 |
20160014849 | Multi Cooker | 01-14-2016 |
20160088685 | Method for regulating a cooking process - The invention relates to a method for regulating a cooking process using an item of cookware having inductive properties on a cooking area, wherein a coil is arranged as part of an LC resonant circuit in the region of the cooking area and the natural frequency of the LC resonant circuit is measured repeatedly or continuously. The invention also relates to a cooking apparatus having at least one cooking area, a temperature sensor, a power controller, an LC resonant circuit having a coil, which is arranged in, around or in the region of the cooking area, and a controller, which is connected to the temperature sensor and a unit for measuring the frequency of the LC resonant circuit and which is programmed to carry out method, wherein the controller has access to a memory for storing the mathematically determined parameter function or vector function. | 03-24-2016 |