Patents by Inventor Mats Molander
Mats Molander 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: 8752502Abstract: A device and a method for visual monitoring and stabilization of an elongated metallic strip during continuous transport of the strip in a transport direction along a predetermined transport path, wherein the strip has been coated with a metallic layer by the strip having continuously passed through a bath of molten metal. The device includes an electromagnetic stabilizing device with at least one first pair of electromagnetic stabilizing means arranged on each side of the predetermined transport path, and a wiping device for wiping off superfluous molten metal from the strip by applying an air current in a line transversely of the transport direction of the strip and across essentially the whole width of the strip. A first image-reading apparatus takes images of the actual position of the strip in relation to the predetermined transport path. A second and third image-reading apparatus take images of the surface of the strip.Type: GrantFiled: March 25, 2010Date of Patent: June 17, 2014Assignee: ABB Research Ltd.Inventors: Boo Eriksson, Mats Molander, Peter Lofgren
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Patent number: 8616033Abstract: A method for vibration damping and shape control of a suspended metal strip is provided. The method includes the steps of: measuring distance to the metal strip by a plurality of non-contact sensors, providing distance measurements; generating a deflection profile based on the distance measurements; decomposing the deflection profile to a number of base shapes; and controlling the deflection profile by a plurality of non-contact actuators. The step of controlling includes providing for each of the base shapes a corresponding combination of force profiles.Type: GrantFiled: November 22, 2011Date of Patent: December 31, 2013Assignee: ABB Research Ltd.Inventors: Mats Molander, Robert Stal, Peter Rybing
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Patent number: 8374715Abstract: A method for vibration damping and shape control of a suspended metal strip during continuous transport in a processing facility in a steel rolling line or surface treating line in a steel mill, where the method comprises the steps: measuring distance to the strip by a plurality of non-contact sensors; and generating a strip profile from distance measurements; decomposing the strip profile to a combination of mode shapes; determining coefficients for the contribution from each mode shape to the total strip profile; and controlling the strip profile by a plurality of non-contact actuators based on a combination of mode shapes.Type: GrantFiled: March 1, 2010Date of Patent: February 12, 2013Assignee: ABB Research Ltd.Inventors: Peter Lofgren, Mats Molander
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Publication number: 20120067096Abstract: A method for vibration damping and shape control of a suspended metal strip is provided. The method includes the steps of: measuring distance to the metal strip by a plurality of non-contact sensors, providing distance measurements; generating a deflection profile based on the distance measurements; decomposing the deflection profile to a number of base shapes; and controlling the deflection profile by a plurality of non-contact actuators. The step of controlling includes providing for each of the base shapes a corresponding combination of force profiles.Type: ApplicationFiled: November 22, 2011Publication date: March 22, 2012Inventors: Mats Molander, Robert Stal, Peter Rybing
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Patent number: 8062711Abstract: A device for stabilizing an elongated steel sheet when continuously transporting the steel sheet in a transport direction along a predetermined transport path. The device includes at least a first pair, a second pair and a third pair of electromagnets with at least one electromagnet on each side of the steel sheet. The electromagnets are adapted to stabilize the steel sheet with respect to the predetermined transport path. The first and second electromagnets are elongated in a direction essentially perpendicular to the transport direction. The first and second electromagnets are substantially arranged on each side of a longitudinal center line for the steel sheet. The center line is essentially parallel to the transport direction. The third electromagnet is arranged adjacent to the center line.Type: GrantFiled: March 23, 2006Date of Patent: November 22, 2011Assignee: ABB Research Ltd.Inventors: Peter Löfgren, Jan-Erik Eriksson, Mats Molander, Carl-Fredrik Lindberg, Conny Svahn
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Patent number: 7792200Abstract: A multi-carrier transmitter and transmission technique are described for transmitting payload data during a transmission time interval with reduced peak-to-average power ratio (PAPR). A multi-carrier modulator modulates subcarrier frequencies with payload data and provides a modulated signal for transmission during the transmission time interval. Excessive peaks in the modulated signal are extracted. The extracted peaks signal is transformed into the frequency domain to generate a peaks frequency spectrum which is processed using the frequency spectrum of certain subcarriers selected for reducing PAPR to produce a peak compensation spectrum. In one approach, that spectrum is transformed into the time domain before being modified by the modulated signal in the time domain to reduce PAPR.Type: GrantFiled: November 13, 2006Date of Patent: September 7, 2010Assignee: Telefonaltiebolaget LM Ericsson (publ)Inventor: Mats Molander
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Publication number: 20100209591Abstract: A device and a method for visual monitoring and stabilization of an elongated metallic strip during continuous transport of the strip in a transport direction along a predetermined transport path, wherein the strip has been coated with a metallic layer by the strip having continuously passed through a bath of molten metal. The device includes an electromagnetic stabilizing device with at least one first pair of electromagnetic stabilizing means arranged on each side of the predetermined transport path, and a wiping device for wiping off superfluous molten metal from the strip by applying an air current in a line transversely of the transport direction of the strip and across essentially the whole width of the strip. A first image-reading apparatus takes images of the actual position of the strip in relation to the predetermined transport path. A second and third image-reading apparatus take images of the surface of the strip.Type: ApplicationFiled: March 25, 2010Publication date: August 19, 2010Inventors: Boo Eriksson, Mats Molander, Peter Lofgren
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Publication number: 20100161104Abstract: A method for vibration damping and shape control of a suspended metal strip during continuous transport in a processing facility in a steel rolling line or surface treating line in a steel mill, where the method comprises the steps: measuring distance to the strip by a plurality of non-contact sensors; and generating a strip profile from distance measurements; decomposing the strip profile to a combination of mode shapes; determining coefficients for the contribution from each mode shape to the total strip profile; and controlling the strip profile by a plurality of non-contact actuators based on a combination of mode shapes.Type: ApplicationFiled: March 1, 2010Publication date: June 24, 2010Inventors: Peter Lofgren, Mats Molander
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Publication number: 20100069063Abstract: A wireless telecommunications system is provided in which mobile terminals requiring high transmission power are identified as being potentially disturbing to neighbouring cells. Information relating to the identified mobile terminals is sent to the neighbouring basestation, so that resource allocation decision can be made using such information.Type: ApplicationFiled: November 13, 2006Publication date: March 18, 2010Inventors: Jacob Osterling, Mats Molander
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Patent number: 7669638Abstract: A control system for regulating the flow of liquid metal in a device for casting a metal. A detector measures a process variable. A control unit evaluates data from the detector. At least one process parameter is automatically varied in order to optimize casting conditions. The detector measures a characteristic of the meniscus at at least two points on the meniscus instantaneously throughout the casting process.Type: GrantFiled: November 28, 2003Date of Patent: March 2, 2010Assignee: ABB ABInventors: Sten Kollberg, Jan-Erik Eriksson, Carl-Fredrik Lindberg, Mats Molander, Peter Löfgren, Göte Tallbäck, Rebei Bel Fdhila, Bertil Samuelsson, Stefan Israelsson Tampe, Christina Wallin
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Publication number: 20090175708Abstract: A device for stabilizing an elongated steel sheet when continuously transporting the steel sheet in a transport direction along a predetermined transport path. The device includes at least a first pair, a second pair and a third pair of electromagnets with at least one electromagnet on each side of the steel sheet. The electromagnets are adapted to stabilize the steel sheet with respect to the predetermined transport path. The first and second electromagnets are elongated in a direction essentially perpendicular to the transport direction. The first and second electromagnets are substantially arranged on each side of a longitudinal center line for the steel sheet. The center line is essentially parallel to the transport direction. The third electromagnet is arranged adjacent to the center line.Type: ApplicationFiled: March 23, 2006Publication date: July 9, 2009Applicant: ABB Research Ltd.Inventors: Peter Lofgren, Jan-Erik Eriksson, Mats Molander, Carl-Fredrik Lindberg, Conny Svahn
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Publication number: 20080044584Abstract: A device and a method for stabilizing an elongated metallic strip of a magnetic material when coating the strip with a metallic layer. The strip is transported from the bath in a direction of transport along a predetermined transport path. A wiping device for wiping off superfluous molten metal from the strip applies an air flow in a line across the strip, where the wiping device includes at least one pair of air-knives arranged with one air-knife on each side of the strip. An electromagnetic stabilizing device stabilizes the position of the strip with respect to the predetermined transport path. A sensor detects the position of the strip in relation to the predetermined transport path.Type: ApplicationFiled: June 23, 2005Publication date: February 21, 2008Applicant: ABB ABInventors: Jan-Erik Eriksson, Conny Svahn, Mats Molander, Carl-Fredrik Lindberg, Peter Lofgren, Stefan Israelsson Tampe, Bengt Rydholm
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Publication number: 20070116142Abstract: A multi-carrier transmitter and transmission technique are described for transmitting payload data during a transmission time interval with reduced peak-to-average power ratio (PAPR). A multi-carrier modulator modulates subcarrier frequencies with payload data and provides a modulated signal for transmission during the transmission time interval. Excessive peaks in the modulated signal are extracted. The extracted peaks signal is transformed into the frequency domain to generate a peaks frequency spectrum which is processed using the frequency spectrum of certain subcarriers selected for reducing PAPR to produce a peak compensation spectrum. In one approach, that spectrum is transformed into the time domain before being modified by the modulated signal in the time domain to reduce PAPR.Type: ApplicationFiled: November 13, 2006Publication date: May 24, 2007Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventor: Mats Molander
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Publication number: 20070110177Abstract: Data is transmitted during a transmission time interval using an available frequency bandwidth. Blocks of data to be transmitted at different power levels are identified. Multiple portions of the data blocks are distributed for transmission at different frequencies so that data blocks with higher power levels are distributed more toward the center of the determined frequency bandwidth than data blocks with lower power levels. The distributing of data block portions reduces the power of intermodulation products occurring outside the determined frequency bandwidth caused by radio frequency signals carrying the distributed data block portions fed through a non-linear power amplifier. It also reduces peaks in the power of the intermodulation products.Type: ApplicationFiled: November 8, 2006Publication date: May 17, 2007Applicant: Telefonaktiebolaget LM EricssonInventors: Mats Molander, Karl Sahlman, Ulf Skarby
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Publication number: 20060162895Abstract: A control system for regulating the flow of liquid metal in a device for casting a metal. A detector measures a process variable. A control unit evaluates data from the detector. At least one process parameter is automatically varied in order to optimize casting conditions. The detector measures a characteristic of the meniscus at at least two points on the meniscus instantaneously throughout the casting process.Type: ApplicationFiled: November 28, 2003Publication date: July 27, 2006Applicant: ABB ABInventors: Sten Kollberg, Jan-Erik Eriksson, Carl-Fredrik Lindberg, Mats Molander, Peter Lofgren, Gote Tallback, Rebei Bel Fdhila, Bertil Samuelsson, Stefan Israelsson Tampe, Christina Wallin
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Patent number: 6658304Abstract: A computer based method of controlling an industrial process, including the steps of measuring the values of at least one process variable (y1, y2), and predicting future deviations of one process variable (y1) with regard to the measured value of said at least one process variable (y1, y2), and providing a control signal (uFB) based on said predictions, and by means of a first control law. The method comprises the further steps of measuring a measurable disturbance (d) in the process, predicting future deviations of said process variable (y1) with regard to said disturbance but without regard to the measured value of said at least one process variable (y1, y2), and providing a control signal (ud) based on said predictions by means of a second control law.Type: GrantFiled: October 5, 2000Date of Patent: December 2, 2003Assignee: ABB ABInventors: Mats Molander, Michael Lundh