Patents by Inventor Gunnar Gudnason
Gunnar Gudnason 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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Publication number: 20220296166Abstract: A hearing aid includes a plurality of electrode units, where each of the plurality of electrode units includes an electrode configured to provide an electrical stimulation to a user of the hearing aid and/or to measure a bio response signal of the user; a plurality of electrode channel circuits, where each of the plurality of electrode channel circuits includes: an operational amplifier comprising a first input terminal configured to receive the bio response signal and provide an amplified bio response signal, and the operational amplifier includes a first load input; a first DC offset unit configured to reduce the impact of DC offset in the electrode channel circuit of the plurality of electrode channel circuits by receiving a part of the amplified bio response signal and converting it to a feedback current signal which is transmitted to the first load input for providing balanced drain currents in the operational amplifier.Type: ApplicationFiled: March 17, 2022Publication date: September 22, 2022Applicant: Oticon A/SInventors: Lin ZHU, Gunnar GUDNASON, Seri JALONEN, Xiaodong LIU, Peter Søren Kirk HANSEN
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Patent number: 10879792Abstract: The disclosure presents a method of operating a switched capacitor voltage converter and a switched capacitor voltage converter, where the switched capacitor voltage converter comprises a power source, a bucket capacitance, an output capacitance with output capacitance terminals to be connected to a load and switches. The power source provides an input voltage and the output capacitance provides an output voltage over the output capacitance terminals. The output voltage is different from the input voltage, i.e higher or lower or of opposite polarity. The switches are configured to provide at least two phases, a bucket capacitance charging phase and a bucket capacitance discharging phase. In case of a voltage up-converter in the bucket capacitance charging phase the bucket capacitance is connected to the power source for charging the bucket capacitance while the bucket capacitance is not connected to the output capacitance.Type: GrantFiled: November 27, 2018Date of Patent: December 29, 2020Assignee: OTICON A/SInventors: Gunnar Gudnason, Rasmus Glarborg Jensen, Jess Christensen, Kåre Tais Christensen
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Publication number: 20190165671Abstract: The disclosure presents a method of operating a switched capacitor voltage converter and a switched capacitor voltage converter, where the switched capacitor voltage converter comprises a power source, a bucket capacitance, an output capacitance with output capacitance terminals to be connected to a load and switches. The power source provides an input voltage and the output capacitance provides an output voltage over the output capacitance terminals. The output voltage is different from the input voltage, i.e higher or lower or of opposite polarity. The switches are configured to provide at least two phases, a bucket capacitance charging phase and a bucket capacitance discharging phase. In case of a voltage up-converter in the bucket capacitance charging phase the bucket capacitance is connected to the power source for charging the bucket capacitance while the bucket capacitance is not connected to the output capacitance.Type: ApplicationFiled: November 27, 2018Publication date: May 30, 2019Applicant: Oticon A/SInventors: Gunnar GUDNASON, Rasmus Glarborg JENSEN, Jess CHRISTENSEN, Kåre Tais CHRISTENSEN
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Patent number: 9781521Abstract: A portable hearing assistance device comprises an input unit, an output unit, a forward path between the input unit and the output unit, and an energy source for energizing components of the hearing assistance device. The hearing assistance device further comprises a control unit to control activation (or deactivation) of a low-power mode of operation of the hearing assistance device. When the low-power mode is activated—the draw of current from said energy source is reduced compared to a normal mode of operation of the device, the activation (or deactivation) being influenced by a combination of at least two different control input signals to the control unit, each control input signal being a signal selected from 1) signals relating to current physical environment, 2) signals relating to current acoustic environment, 3) signals relating to current wearer state, and 4) signals relating to current state or operation mode.Type: GrantFiled: April 24, 2013Date of Patent: October 3, 2017Assignees: OTICON A/S, BERNAFON AGInventors: Andreas Kofod-Hansen, Svend Oscar Petersen, Gabriel Aldaz, Gunnar Gudnason, Michael Syskind Pedersen, Dennis Presutti, Björn Legler, Poul Hilding Andersson, Christian Müller, Jesko Lamm, Monika Bertges Reber
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Publication number: 20140321682Abstract: A portable hearing assistance device comprises an input unit, an output unit, a forward path between the input unit and the output unit, and an energy source for energizing components of the hearing assistance device. The hearing assistance device further comprises a control unit to control activation (or deactivation) of a low-power mode of operation of the hearing assistance device. When the low-power mode is activated—the draw of current from said energy source is reduced compared to a normal mode of operation of the device, the activation (or deactivation) being influenced by a combination of at least two different control input signals to the control unit, each control input signal being a signal selected from 1) signals relating to current physical environment, 2) signals relating to current acoustic environment, 3) signals relating to current wearer state, and 4) signals relating to current state or operation mode.Type: ApplicationFiled: April 24, 2013Publication date: October 30, 2014Applicants: Bernafon AG, Oticon A/SInventors: Andreas KOFOD-HANSEN, Svend Oscar PETERSEN, Gabriel ALDAZ, Gunnar GUDNASON, Michael Syskind PEDERSEN, Dennis PRESUTTI, Björn LEGLER, Poul Hilding ANDERSSON, Christian MÜLLER, Jesko LAMM, Monika Bertges REBER
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Patent number: 8224007Abstract: A rechargeable battery is provided comprising a flexible elongate electron conductive core surrounded by a first electrochemically active layer, and a second electrochemically active layer, separated by a separation layer and where an electron conducting element contacts the outer surface of the second electrochemically active layer, whereby at least one of the two electrochemically active layers and the separation layer are comprised of thin-film layers. Further a hearing aid is provided wherein a battery comprising thin film layers is provided. Such a battery may be curled or wound to accommodate an irregular space inside the hearing aid.Type: GrantFiled: January 12, 2006Date of Patent: July 17, 2012Assignee: Oticon A/SInventors: Anders Erik Petersen, Frank Engel Rasmussen, Henning Knak Poulsen, Gunnar Gudnason
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Patent number: 7903832Abstract: The present invention relates to a system (100) and method for driving an antenna (118). The system (100) comprises a driving means (110, 112, 114) driving the antenna (118) with a driving signal. The system (100) further comprises a modulation means (102) having an input receiving a transmission data signal (106), a data identification means (122) identifying a level change in the transmission data signal (106) and controlling duty cycle of the driving signal (108). The data identification means (122) provides a timed increase of duty cycle of the driving signal (108) when the a level change in said transmission data is identified.Type: GrantFiled: October 18, 2006Date of Patent: March 8, 2011Assignee: Oticon A/SInventor: Gunnar Gudnason
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Publication number: 20080137890Abstract: A rechargeable battery is provided comprising a flexible elongate electron conductive core (1) surrounded by a first electrochemically active layer (2), and a second electrochemically active layer (4), separated by a separation layer (3) and where an electron conducting element (5) contacts the outer surface of the second electrochemically active layer, whereby at least one of the two electrochemically active layers (2, 4) and the separation layer (3) are comprised of thin-film layers. Further a hearing aid is provided wherein a battery comprising thin film layers is provided. Such a battery may be curled or wound to accommodate an irregular space inside the hearing aid.Type: ApplicationFiled: January 12, 2006Publication date: June 12, 2008Applicant: Oticon A/SInventors: Anders Erik Petersen, Frank Engel Rasmussen, Henning Knak Poulsen, Gunnar Gudnason
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Publication number: 20070116146Abstract: The present invention relates to a system (100) and method for driving an antenna (118). The system (100) comprises a driving means (110, 112, 114) driving the antenna (118) with a driving signal. The system (100) further comprises a modulation means (102) having an input receiving a transmission data signal (106), a data identification means (122) identifying a level change in the transmission data signal (106) and controlling duty cycle of the driving signal (108). The data identification means (122) provides a timed increase of duty cycle of the driving signal (108) when the a level change in said transmission data is identified.Type: ApplicationFiled: October 18, 2006Publication date: May 24, 2007Applicant: OTICON A/SInventor: Gunnar Gudnason