Patents by Inventor Hakan Carlsson
Hakan Carlsson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9930732Abstract: A microwave heating apparatus and a method of operating a microwave heating apparatus are provided. The microwave heating apparatus comprises a load receiving cavity, at least one microwave source, a plurality of feeding ports connected to the microwave source and the cavity for feeding microwaves to the cavity, a measuring unit and a control unit. The measuring unit measures, for at least one frequency or within a frequency range, the power of microwaves reflected back to the microwave source for at least part of the plurality of feeding ports. The control unit selects at least one of the feeding ports based on the measured powers of the reflected microwaves in order to feed microwaves to the cavity via the at least one selected feeding port during operation of the microwave heating apparatus at the at least one frequency or within the frequency range.Type: GrantFiled: October 24, 2011Date of Patent: March 27, 2018Assignee: Whirlpool CorporationInventors: Olle Niklasson, Hakan Carlsson, Ulf Nordh, Fredrik Hallgren
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Patent number: 9769884Abstract: A microwave heating apparatus for heating a load by means of microwaves is provided. The microwave heating apparatus comprises a cavity arranged to receive a piece of food to be heated, a first microwave supply system configured to supply microwaves at the cavity bottom for energizing a browning function in the cavity, a second microwave supply system configured to supply microwaves into the cavity for exciting cavity modes and a control unit configured to control the first and second microwave supply systems based on a food category and/or a cooking program. The first supply system comprises at least one microwave source and at least one antenna arranged in a lower part of the cavity and the second microwave supply system comprises at least one microwave source and at least one feeding port arranged in an upper part of the cavity. The present invention is advantageous in that a microwave heating apparatus with an improved crisp function is provided.Type: GrantFiled: April 27, 2016Date of Patent: September 19, 2017Assignee: Whirlpool CorporationInventors: Olle Niklasson, Hakan Carlsson, Ulf Nordh, Fredrik Hallgren
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Patent number: 9717116Abstract: A method of operating a microwave oven and a microwave oven are disclosed. The microwave oven comprises a magnetron for providing microwave power to heat a load placed in the microwave oven, and a solid-state microwave generator for providing microwave power to sense presence and/or determine nature of the load in the microwave oven.Type: GrantFiled: September 9, 2013Date of Patent: July 25, 2017Assignee: Whirlpool CorporationInventors: Ollie Niklasson, Ulf Nordh, Fredrik Hallgren, Hakan Carlsson
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Publication number: 20170105252Abstract: A microwave heating apparatus and a method for heating/browning a piece of food by means of microwaves are provided. The microwave heating apparatus comprises a cavity arranged to receive, in a substantially horizontal browning region, a piece of food to be browned. The microwave heating apparatus further comprises a microwave source for generating microwaves and a rotatable antenna arranged at the cavity bottom for supplying the generated microwaves. The antenna is configured to produce at least one radiating lobe pointing towards the browning region such that the intersection between the radiating lobe and the browning region forms a hot spot, thereby forming a ring-shaped heating pattern in the browning region under rotation of the antenna. The present invention is advantageous in that a microwave heating apparatus with an improved crisp function is provided.Type: ApplicationFiled: December 22, 2016Publication date: April 13, 2017Applicant: WHIRLPOOL CORPORATIONInventors: Ulf Nordh, Hakan Carlsson, Olle Niklasson, Fredrik Hallgren
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Patent number: 9538585Abstract: A microwave heating apparatus and a method for heating/browning a piece of food by means of microwaves are provided. The microwave heating apparatus comprises a cavity arranged to receive, in a substantially horizontal browning region, a piece of food to be browned. The microwave heating apparatus further comprises a microwave source for generating microwaves and a rotatable antenna arranged at the cavity bottom for supplying the generated microwaves. The antenna is configured to produce at least one radiating lobe pointing towards the browning region such that the intersection between the radiating lobe and the browning region forms a hot spot, thereby forming a ring-shaped heating pattern in the browning region under rotation of the antenna. The present invention is advantageous in that a microwave heating apparatus with an improved crisp function is provided.Type: GrantFiled: June 1, 2011Date of Patent: January 3, 2017Assignee: Whirlpool CorporationInventors: Ulf Nordh, Hakan Carlsson, Olle Niklasson, Fredrik Hallgren
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Patent number: 9507495Abstract: A method includes displaying a first item on an electronic device and detecting a gesture requesting display of a list. In response to detecting the gesture, a first plurality of representations of items in the list is displayed in a first area while displaying at least a part of the first item in a second area. A characteristic of the gesture that identifies a second item from the list is detected. In response to detecting the characteristic of the gesture, a representation of the second item is displayed as a focused item in the first area. In response to detecting discontinuation of the gesture, the second item is displayed and display of the list is discontinued.Type: GrantFiled: April 3, 2013Date of Patent: November 29, 2016Assignee: BlackBerry LimitedInventors: Per Åke Daniel Johansson, Håkan Carlsson, Anders Larsson
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Publication number: 20160242242Abstract: An apparatus and a method for heating a load using microwaves is disclosed. The apparatus includes a transmission line, configured to transmit microwaves from a microwave generator to a cavity. A sensing device configured to measure electromagnetic field strengths for providing information about the phase and the amplitude of a reflection coefficient that represents a ratio between the amount of microwaves reflected back towards the microwave generator and the amount of microwaves transmitted in the transmission line from the microwave generator. A control unit configured to detect whether the measured electromagnetic field strengths correspond to a reflection coefficient having a phase within a certain interval of phases and an amplitude within a certain interval of amplitudes. Additionally, certain intervals of phases and amplitudes correspond to an operating region of the microwave generator. The control unit controls feeding of microwaves to the cavity based on this detection.Type: ApplicationFiled: April 25, 2016Publication date: August 18, 2016Inventors: HAKAN CARLSSON, ULF NORDH
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Publication number: 20160242241Abstract: A microwave heating apparatus for heating a load by means of microwaves is provided. The microwave heating apparatus comprises a cavity arranged to receive a piece of food to be heated, a first microwave supply system configured to supply microwaves at the cavity bottom for energizing a browning function in the cavity, a second microwave supply system configured to supply microwaves into the cavity for exciting cavity modes and a control unit configured to control the first and second microwave supply systems based on a food category and/or a cooking program. The first supply system comprises at least one microwave source and at least one antenna arranged in a lower part of the cavity and the second microwave supply system comprises at least one microwave source and at least one feeding port arranged in an upper part of the cavity. The present invention is advantageous in that a microwave heating apparatus with an improved crisp function is provided.Type: ApplicationFiled: April 27, 2016Publication date: August 18, 2016Inventors: OLLE NIKLASSON, HAKAN CARLSSON, ULF NORDH, FREDRIK HALLGREN
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Patent number: 9363852Abstract: An apparatus and a method for heating a load using microwaves is disclosed. The apparatus includes a transmission line, configured to transmit microwaves from a microwave generator to a cavity. A sensing device configured to measure electromagnetic field strengths for providing information about the phase and the amplitude of a reflection coefficient that represents a ratio between the amount of microwaves reflected back towards the microwave generator and the amount of microwaves transmitted in the transmission line from the microwave generator. A control unit configured to detect whether the measured electromagnetic field strengths correspond to a reflection coefficient having a phase within a certain interval of phases and an amplitude within a certain interval of amplitudes. Additionally, certain intervals of phases and amplitudes correspond to an operating region of the microwave generator. The control unit controls feeding of microwaves to the cavity based on this detection.Type: GrantFiled: June 18, 2013Date of Patent: June 7, 2016Assignee: Whirlpool CorporationInventors: Hakan Carlsson, Nordh Ulf
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Patent number: 9332597Abstract: A microwave heating apparatus for heating a load by means of microwaves is provided. The microwave heating apparatus has a cavity arranged to receive a piece of food to be heated, a first microwave supply system configured to supply microwaves at the cavity bottom for energizing a browning function in the cavity, a second microwave supply system configured to supply microwaves into the cavity for exciting cavity modes and a control unit configured to control the first and second microwave supply systems based on a food category and/or a cooking program. The first supply system has at least one microwave source and at least one antenna arranged in a lower part of the cavity and the second microwave supply system has at least one microwave source and at least one feeding port arranged in an upper part of the cavity. The present invention is advantageous in that a microwave heating apparatus with an improved crisp function is provided.Type: GrantFiled: June 1, 2011Date of Patent: May 3, 2016Assignee: Whirlpool CorporationInventors: Olle Niklasson, Hakan Carlsson, Ulf Nordh, Fredrik Hallgren
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Publication number: 20150382408Abstract: A microwave heating apparatus and methods of controlling cooling of a microwave heating apparatus are provided. The microwave heating apparatus typically includes a microwave source for generating microwaves, a cooling unit for cooling the microwave source and a control unit. According to one embodiment, the control unit is configured to determine the efficiency of the microwave source and then to control the cooling based on the determined efficiency. The methods and the microwave heating apparatuses of the present invention are advantageous with respect to energy consumption.Type: ApplicationFiled: September 4, 2015Publication date: December 31, 2015Inventors: ULF NORDH, HAKAN CARLSSON, OLLE NIKLASSON, FREDRIK HALLGREN
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Patent number: 9161394Abstract: A microwave heating apparatus and a method of heating a load using microwaves is disclosed. The microwave heating apparatus comprises a cavity arranged to receive a load, a microwave generator, a transmission line arranged to transmit the generated microwaves to the cavity and a sensing device arranged to measure electromagnetic field strengths at different positions along the transmission line. The positions are selected such that the measured field strengths provide information about the phase of a reflection coefficient being representative of the ratio between the amount of microwaves reflected back towards the microwave generator and the amount of microwaves transmitted in the transmission line from the microwave generator. The microwave heating apparatus further comprises a control unit configured to control feeding of the microwaves to the cavity based on the measured field strengths.Type: GrantFiled: March 5, 2013Date of Patent: October 13, 2015Assignee: Whirlpool CorporationInventors: Hakan Carlsson, Olle Niklasson
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Patent number: 9131541Abstract: A microwave heating apparatus and methods of controlling cooling of a microwave heating apparatus are provided. The microwave heating apparatus typically includes a microwave source for generating microwaves, a cooling unit for cooling the microwave source and a control unit. According to one embodiment, the control unit is configured to determine the efficiency of the microwave source and then to control the cooling based on the determined efficiency. The methods and the microwave heating apparatuses of the present invention are advantageous with respect to energy consumption.Type: GrantFiled: December 20, 2011Date of Patent: September 8, 2015Assignee: Whirlpool CorporationInventors: Ulf Nordh, Hakan Carlsson, Olle Niklasson, Fredrik Hallgren
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Publication number: 20140304651Abstract: A method includes displaying a first item on an electronic device and detecting a gesture requesting display of a list. In response to detecting the gesture, a first plurality of representations of items in the list is displayed in a first area while displaying at least a part of the first item in a second area. A characteristic of the gesture that identifies a second item from the list is detected. In response to detecting the characteristic of the gesture, a representation of the second item is displayed as a focused item in the first area. In response to detecting discontinuation of the gesture, the second item is displayed and display of the list is discontinued.Type: ApplicationFiled: April 3, 2013Publication date: October 9, 2014Applicant: RESEARCH IN MOTION LIMITEDInventors: Per Åke Daniel JOHANSSON, Håkan CARLSSON, Anders LARSSON
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Publication number: 20140008353Abstract: A method of operating a microwave oven and a microwave oven are disclosed. The microwave oven comprises a magnetron for providing microwave power to heat a load placed in the microwave oven, and a solid-state microwave generator for providing microwave power to sense presence and/or determine nature of the load in the microwave oven.Type: ApplicationFiled: September 9, 2013Publication date: January 9, 2014Applicant: Whirlpool CorporationInventors: OLLIE NIKLASSON, ULF NORDH, FREDRIK HALLGREN, HAKAN CARLSSON
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Publication number: 20130334216Abstract: An apparatus and a method for heating a load using microwaves is disclosed. The apparatus includes a transmission line, configured to transmit microwaves from a microwave generator to a cavity. A sensing device configured to measure electromagnetic field strengths for providing information about the phase and the amplitude of a reflection coefficient that represents a ratio between the amount of microwaves reflected back towards the microwave generator and the amount of microwaves transmitted in the transmission line from the microwave generator. A control unit configured to detect whether the measured electromagnetic field strengths correspond to a reflection coefficient having a phase within a certain interval of phases and an amplitude within a certain interval of amplitudes. Additionally, certain intervals of phases and amplitudes correspond to an operating region of the microwave generator. The control unit controls feeding of microwaves to the cavity based on this detection.Type: ApplicationFiled: June 18, 2013Publication date: December 19, 2013Inventors: HAKAN CARLSSON, NORDH ULF
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Patent number: 8530807Abstract: A method of operating a microwave oven and a microwave oven are disclosed. The microwave oven comprises a magnetron for providing microwave power to heat a load placed in the microwave oven, and a solid-state microwave generator for providing microwave power to sense presence and/or determine nature of the load in the microwave oven.Type: GrantFiled: August 5, 2010Date of Patent: September 10, 2013Assignee: Whirlpool CorporationInventors: Olle Niklasson, Ulf Nordh, Fredrik Hallgren, Hakan Carlsson
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Publication number: 20130228567Abstract: A microwave heating apparatus and a method of heating a load using microwaves is disclosed. The microwave heating apparatus comprises a cavity arranged to receive a load, a microwave generator, a transmission line arranged to transmit the generated microwaves to the cavity and a sensing device arranged to measure electromagnetic field strengths at different positions along the transmission line. The positions are selected such that the measured field strengths provide information about the phase of a reflection coefficient being representative of the ratio between the amount of microwaves reflected back towards the microwave generator and the amount of microwaves transmitted in the transmission line from the microwave generator. The microwave heating apparatus further comprises a control unit configured to control feeding of the microwaves to the cavity based on the measured field strengths.Type: ApplicationFiled: March 5, 2013Publication date: September 5, 2013Applicant: Whirlpool CorporationInventors: HAKAN CARLSSON, OLLE NIKLASSON
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Patent number: 8338763Abstract: A microwave heating device and a method for heating a load using microwaves are provided. The microwave heating device comprises a cavity adapted to receive a load and at least two microwave sources for feeding microwave energy into the cavity through at least two feeding ports respectively. The microwave heating device further comprises at least two field sensors adapted to measure field strengths of the microwave energy in the cavity. A first field sensor is arranged at a first location for measuring the field strength representative of a mode fed from a first feeding port and a second field sensor is arranged at a second location for measuring the field strength representative of a mode fed from a second feeding port. The microwave heating device further comprises a control unit connected to the microwave sources and the field sensors for regulating the microwave sources based on the measured field strengths.Type: GrantFiled: April 5, 2010Date of Patent: December 25, 2012Assignee: Whirlpool CorporationInventors: Ulf Erik Nordh, Olle Niklasson, Fredrik Hallgren, Hakan Carlsson
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Publication number: 20120152937Abstract: A microwave heating apparatus and methods of controlling cooling of a microwave heating apparatus are provided. The microwave heating apparatus typically includes a microwave source for generating microwaves, a cooling unit for cooling the microwave source and a control unit. According to one embodiment, the control unit is configured to determine the efficiency of the microwave source and then to control the cooling based on the determined efficiency. The methods and the microwave heating apparatuses of the present invention are advantageous with respect to energy consumption.Type: ApplicationFiled: December 20, 2011Publication date: June 21, 2012Applicant: Whirlpool CorporationInventors: Ulf Nordh, Hakan Carlsson, Olle Niklasson, Fredrik Hallgren