Patents by Inventor Daniel Karlsson
Daniel Karlsson 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: 9841374Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: GrantFiled: May 27, 2014Date of Patent: December 12, 2017Assignee: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
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Publication number: 20170318388Abstract: A nonlinear control system and a loudspeaker protection system. In particular, a nonlinear control system including a controller, an audio system, and a model is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. The audio system includes one or more transducers configured to accept the control signals to produce a rendered audio stream therefrom. An active loudspeaker with an integrated amplifier is disclosed. A loudspeaker protection system and a quality control system are disclosed. More particularly, a system for clamping the input to a loudspeaker dependent upon a bank of representative models is disclosed.Type: ApplicationFiled: July 14, 2017Publication date: November 2, 2017Inventors: Pär Gunnars Risberg, Erik Lindahl, Marcus Arvidsson, Daniel Karlsson, Landy Toth
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Patent number: 9782156Abstract: The present disclosure relates to a vascular closure device adapted for use in closing a puncture in a blood vessel after e.g. a percutaneous interventional procedure. The disclosure also relates to a method for vascular closure using such a vascular closure device.Type: GrantFiled: October 12, 2016Date of Patent: October 10, 2017Assignee: M-V Arterica ABInventors: Thomas Larzon, Robert G. Whirley, Daniel Karlsson, Henrik Nyman, Joseph Humphrey, Cecilia Larzon
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Publication number: 20170265848Abstract: The present disclosure relates to a vascular closure device adapted for use in closing a puncture in a blood vessel after e.g. a percutaneous interventional procedure. The disclosure also relates to a method for vascular closure using such a vascular closure device.Type: ApplicationFiled: June 1, 2017Publication date: September 21, 2017Applicant: M-V Arterica ABInventors: Thomas LARZON, Robert G. WHIRLEY, Daniel KARLSSON, Henrik NYMAN, Joseph HUMPHREY, Cecilia LARZON
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Patent number: 9736581Abstract: A nonlinear control system and a loudspeaker protection system. In particular, a nonlinear control system including a controller, an audio system, and a model is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. The audio system includes one or more transducers configured to accept the control signals to produce a rendered audio stream therefrom. An active loudspeaker with an integrated amplifier is disclosed. A loudspeaker protection system and a quality control system are disclosed. More particularly, a system for clamping the input to a loudspeaker dependent upon a bank of representative models is disclosed.Type: GrantFiled: September 24, 2013Date of Patent: August 15, 2017Assignee: CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD.Inventors: Pär Gunnars Risberg, Erik Lindahl, Marcus Arvidsson, Daniel Karlsson, Landy Toth
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Publication number: 20170086807Abstract: The present disclosure relates to a vascular closure device adapted for use in closing a puncture in a blood vessel after e.g. a percutaneous interventional procedure. The disclosure also relates to a method for vascular closure using such a vascular closure device.Type: ApplicationFiled: October 12, 2016Publication date: March 30, 2017Applicant: M-V Arterica ABInventors: Thomas LARZON, Robert G. WHIRLEY, Daniel KARLSSON, Henrik NYMAN, Joseph HUMPHREY, Cecilia LARZON
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Publication number: 20170086804Abstract: The present disclosure relates to a vascular closure device adapted for use in closing a puncture in a blood vessel after e.g. a percutaneous interventional procedure. The disclosure also relates to a method for vascular closure using such a vascular closure device.Type: ApplicationFiled: September 27, 2016Publication date: March 30, 2017Applicant: M-V Arterica ABInventors: Thomas LARZON, Robert G. WHIRLEY, Daniel KARLSSON, Henrik NYMAN, Joseph HUMPHREY, Cecilia LARZON
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Publication number: 20160169796Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: ApplicationFiled: May 27, 2014Publication date: June 16, 2016Applicant: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
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Patent number: 9240608Abstract: A polyelectrolyte membrane fuel cell apparatus, includes a backing plate, a top clamping plate, at least one in-plane planar fuel cell assembly interposed between the top plate and the backing plate, and a current collector foil interposed between the planar fuel cell(s) and the top clamping plate, the current collector foil including an electrically non-conductive foil having a pattern of electrically conductive material provided thereon on the side facing the planar fuel cell. The fuel cell apparatus is held together by spot welds between the top clamping plate and the backing plate.Type: GrantFiled: September 30, 2010Date of Patent: January 19, 2016Assignee: MYFC ABInventors: Anders Lundblad, Lars Persson, Tommy Lovgren, Ola Hultberg, Daniel Karlsson
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Publication number: 20150304772Abstract: A nonlinear control system and a loudspeaker protection system. In particular, a nonlinear control system including a controller, an audio system, and a model is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. The audio system includes one or more transducers configured to accept the control signals to produce a rendered audio stream therefrom. An active loudspeaker with an integrated amplifier is disclosed. A loudspeaker protection system and a quality control system are disclosed. More particularly, a system for clamping the input to a loudspeaker dependent upon a bank of representative models is disclosed.Type: ApplicationFiled: September 24, 2013Publication date: October 22, 2015Inventors: Pär Gunnars Risberg, Erik Lindahl, Marcus Arvidsson, Daniel Karlsson, Landy Toth
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Patent number: 8900763Abstract: An electrochemically operable actuator (20), includes a support structure, a flexible membrane sealed against the support structure to form a compartment (108), electrochemical element (101) adapted to generate hydrogen or oxygen gas and to deliver the gas to the inside of the compartment, the electrochemical element including an ion conducting membrane having an electrode on opposing sides thereof, and terminal element for connecting a voltage source to enable applying a potential across the electrodes. The electrochemical element can be a hydrogen pump (101) or an electrolyzer or both. A fuel cell assembly (100) incorporating a valve (V) with an actuator is also described.Type: GrantFiled: June 17, 2011Date of Patent: December 2, 2014Assignee: myFC ABInventors: Anders Lundblad, Mahsa Mashoof, Daniel Karlsson, Magnus Lindblom, Raphael Poulain
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Publication number: 20130095400Abstract: An electrochemically operable actuator (20), includes a support structure, a flexible membrane sealed against the support structure to form a compartment (108), electrochemical element (101) adapted to generate hydrogen or oxygen gas and to deliver the gas to the inside of the compartment, the electrochemical element including an ion conducting membrane having an electrode on opposing sides thereof, and terminal element for connecting a voltage source to enable applying a potential across the electrodes. The electrochemical element can be a hydrogen pump (101) or an electrolyzer or both. A fuel cell assembly (100) incorporating a valve (V) with an actuator is also described.Type: ApplicationFiled: June 17, 2011Publication date: April 18, 2013Applicant: MYFC ABInventors: Anders Lundblad, Mahsa Mashoof, Daniel Karlsson, Magnus Lindblom, Raphael Poulain
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Publication number: 20130011766Abstract: A polyelectrolyte membrane fuel cell apparatus, includes a backing plate, a top clamping plate, at least one in-plane planar fuel cell assembly interposed between the top plate and the backing plate, and a current collector foil interposed between the planar fuel cell(s) and the top clamping plate, the current collector foil including an electrically non-conductive foil having a pattern of electrically conductive material provided thereon on the side facing the planar fuel cell. The fuel cell apparatus is held together by spot welds between the top clamping plate and the backing plate.Type: ApplicationFiled: September 30, 2010Publication date: January 10, 2013Applicant: MYFC ABInventors: Anders Lundblad, Lars Persson, Caroline Persson, Tommy Lövgren, Ola Hultberg, Daniel Karlsson
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Patent number: 8183718Abstract: A method for controlled reclosing of branch elements in an electric power system that has been subjected to a disturbance and that includes at least one branch element and at least one circuit breaker connected thereto. The angular difference between voltage vectors on both sides of the circuit breaker or at two end points of the branch element is detected and compared with a comparison value. In dependence on a magnitude of a deviation of the angular difference from the comparison value, the reclosing is either completed or blocked. The comparison value is updated automatically and regularly in such a way that an adaptive value is obtained. A system includes an element arranged to update the comparison value automatically and regularly in such a way that an adaptive value is obtained.Type: GrantFiled: December 22, 2005Date of Patent: May 22, 2012Assignee: ABB ABInventors: Daniel Karlsson, Göran Runvik
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Patent number: 7957844Abstract: A method for stabilization of the power balance in an electric power system including a number of nodes. An instantaneous value of the mains frequency of the electric power system is sensed. In dependence on the frequency deviation of the instantaneous value from a reference frequency value, a selected part of the electric power system, connected in a node, is disconnected in the node. A voltage amplitude value is sensed in the node. A measure of the magnitude of the deviation of the voltage amplitude value from a reference amplitude value is formed. A time lag is formed in dependence on the measure of the magnitude. The part of the electric power system is disconnected in dependence on the time lag.Type: GrantFiled: January 26, 2004Date of Patent: June 7, 2011Assignee: ABB ABInventors: Lars Messing, Daniel Karlsson
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Patent number: 7933924Abstract: A document object includes informational elements and at least one attribute corresponding to a first document, and a sub-object corresponding to a second document. The sub-object includes informational elements and at least one attribute corresponding to the second document. Optionally, the second document may be a subset of the first document. Any of the attributes may include elements such as an access right, operation, informational element, internal state indicator and/or work low instruction. The document object is stored in a manner such that when the document object is decompressed, the sub-object remains compressed until it is also decompressed.Type: GrantFiled: July 14, 2006Date of Patent: April 26, 2011Assignee: Xerox CorporationInventors: Måns Jonas Daniel Karlsson, James Walter Reid
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Patent number: 7732943Abstract: A method for determining/dimensioning measures for restoring an electrical power system, which experiences or is heading for a voltage instability, to a steady-state condition, wherein there is no immediate risk of instability. An actual voltage/phase angle in the electrical power system is determined. The power unbalance within at least one sub-area in the electrical power system is determined. Suitable power-balancing measures are determined. The extent of the respective measures is determined. The power-balancing measures are carried out. Also, a device for carrying out the method.Type: GrantFiled: December 23, 2004Date of Patent: June 8, 2010Assignee: ABB ABInventors: Daniel Karlsson, Sture Lindahl
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Publication number: 20080197715Abstract: A method for controlled reclosing of branch elements in an electric power system that has been subjected to a disturbance and that includes at least one branch element and at least one circuit breaker connected thereto. The angular difference between voltage vectors on both sides of the circuit breaker or at two end points of the branch element is detected and compared with a comparison value. In dependence on a magnitude of a deviation of the angular difference from the comparison value, the reclosing is either completed or blocked. The comparison value is updated automatically and regularly in such a way that an adaptive value is obtained. A system includes an element arranged to update the comparison value automatically and regularly in such a way that an adaptive value is obtained.Type: ApplicationFiled: December 22, 2005Publication date: August 21, 2008Applicant: ABB ABInventors: Daniel Karlsson, Goran Runvik
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Publication number: 20080172616Abstract: A method is presented for extracting information from a document by separating the document into segments and organizing the segments into a hierarchical structure. An audio rendition of the segments is generated and presented aurally to the user for selection of the segment to be presented. The selected segment is then presented aurally to the user. If desired an audio rendition of a summary may be generated and presented aurally to the user.Type: ApplicationFiled: January 16, 2007Publication date: July 17, 2008Inventors: Steven J. Harrington, James Walter Reid, Mans Jonas Daniel Karlsson
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Publication number: 20080016078Abstract: A document object includes informational elements and at least one attribute corresponding to a first document, and a sub-object corresponding to a second document. The sub-object includes informational elements and at least one attribute corresponding to the second document. Optionally, the second document may be a subset of the first document. Any of the attributes may include elements such as an access right, operation, informational element, internal state indicator and/or work low instruction. The document object is stored in a manner such that when the document object is decompressed, the sub-object remains compressed until it is also decompressed.Type: ApplicationFiled: July 14, 2006Publication date: January 17, 2008Inventors: Mans Jonas Daniel Karlsson, James Walter Reid