Patents by Inventor Gert Andersson
Gert Andersson 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: 10371520Abstract: The present invention relates to a gyroscope sensor for detecting a rotational motion about a sensitivity axis and comprising means for quadrature compensation. The gyroscope sensor comprises a total inertial mass comprising a first inertial mass and a second inertial mass physically attached to each other and arranged such that a rotation of the first inertial mass about a detection axis caused by the coriolis force when the gyroscope sensor is subjected to a rotation about a sensitivity axis. The gyroscope further comprises a first drive structure having a displaceable drive frame which may cause a respective of the first or second inertial mass to rotate about the detection axis in order to compensate for quadrature errors originating from faulty coupling between a drive mode and a sense mode of the gyroscope sensor.Type: GrantFiled: December 17, 2015Date of Patent: August 6, 2019Assignee: RISE ACREO ABInventors: Gert Andersson, Erik Svensson, Borys Stoew, Nils Hedenstierna
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Patent number: 9976858Abstract: A sensor is disclosed for detecting a rotational motion about a resulting sensitivity axis. The sensor includes at least two dual mass gyroscope units, each of the gyroscope units are adapted to detect a rotational motion about a sensitivity axis of the respective gyroscope unit. The sensitivity axes being parallel to each other and to the resulting sensitivity axis. The gyroscope units are interconnected at the inertial masses of the gyroscope units which cause the gyroscope unit to operate synchronously.Type: GrantFiled: December 17, 2015Date of Patent: May 22, 2018Assignee: RISE ACREO AEInventors: Gert Andersson, Erik Svensson, Borys Stoew, Nils Hedenstierna
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Publication number: 20170284803Abstract: The present invention relates to a gyroscope sensor (102) for detecting a rotational motion about a sensitivity axis (104) and comprising means for quadrature compensation. The gyroscope sensor comprises a total inertial mass (105) comprising a first inertial mass (106) and a second inertial mass (108) physically attached to each other and arranged such that a rotation of the first inertial mass about a detection axis caused by the coriolis force when the gyroscope sensor is subjected to a rotation about a sensitivity axis. The gyroscope further comprises a first drive structure having a displaceable drive frame which may cause a respective of the first or second inertial mass to rotate about the detection axis in order to compensate for quadrature errors originating from faulty coupling between a drive mode and a sense mode of the gyroscope sensor.Type: ApplicationFiled: December 17, 2015Publication date: October 5, 2017Applicant: RISE Acreo ABInventors: Gert ANDERSSON, Erik SVENSSON, Borys STOEW, Nils HEDENSTIERNA
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Publication number: 20170268879Abstract: A sensor is disclosed for detecting a rotational motion about a resulting sensitivity axis. The sensor includes at least two dual mass gyroscope units, each of the gyroscope units are adapted to detect a rotational motion about a sensitivity axis of the respective gyroscope unit. The sensitivity axes being parallel to each other and to the resulting sensitivity axis. The gyroscope units are interconnected at the inertial masses of the gyroscope units which cause the gyroscope unit to operate synchronously.Type: ApplicationFiled: December 17, 2015Publication date: September 21, 2017Applicant: RISE Acreo ABInventors: Gert ANDERSSON, Erik SVENSSON, Borys STOEW, Nils HEDENSTIERNA
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Patent number: 9366585Abstract: A device for measuring force components formed from a single crystal material, wherein the device comprises at least one cantilever beam inclined to a wafer plane normal and formed in one piece with a mass body, which mass body provides a mass of inertia. The mass body has a first and a second major surface which are substantially parallel with a wafer plane. A mass body cross section presents a portion which is substantially symmetrical along a centrally (in the thickness direction) located plane parallel with the wafer plane. Disclosed is also a method for its production and an accelerometer comprising at least one such device. The device allow for a more compact 3-axis accelerometer.Type: GrantFiled: September 24, 2013Date of Patent: June 14, 2016Assignee: ACREO SWEDISH ICT ABInventors: Gert Andersson, Milena Anguelova, Nils Hedenstierna, Alexandra Nafari, David Westberg
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Publication number: 20140083210Abstract: A device for measuring force components formed from a single crystal material, wherein the device comprises at least one cantilever beam inclined to a wafer plane normal and formed in one piece with a mass body, which mass body provides a mass of inertia. The mass body has a first and a second major surface which are substantially parallel with a wafer plane. A mass body cross section presents a portion which is substantially symmetrical along a centrally (in the thickness direction) located plane parallel with the wafer plane. Disclosed is also a method for its production and an accelerometer comprising at least one such device. The device allow for a more compact 3-axis accelerometer.Type: ApplicationFiled: September 24, 2013Publication date: March 27, 2014Applicant: ACREO SWEDISH ICT ABInventors: Gert ANDERSSON, Milena ANGUELOVA, Nils HEDENSTIERNA, Alexandra NAFARI, David WESTBERG
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Patent number: 8599054Abstract: A modulator is provided in operative engagement with a sensor element having a plurality of electrodes. The modulator has a single-bit quantizer electrically connected to a digital accumulator. The accumulator accumulates output information received from the single-bit quantizer. The accumulator converts the accumulated output information received from the single-bit quantizer to a multi-bit feedback signal and sends the multi-bit feedback signal in a primary feedback loop back to the sensor element. The quantizer sends a single-bit feedback signal in a secondary feedback loop back to a point before the quantizer.Type: GrantFiled: February 6, 2012Date of Patent: December 3, 2013Assignee: PGS Geophysical ASInventors: Mats Carlsson, David Westberg, Gert Andersson, Nils Hedenstierna, Sjoerd Haasl
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Publication number: 20130220158Abstract: A detecting unit is provided, including a transmitter arranged to emit electromagnetic radiation, having a frequency in the range of 0.1 to 10 THz, towards a paper web moving in a printing unit; a receiver arranged to receive electromagnetic radiation being transmitted through or reflected by the paper web and to create a signal representing the received radiation; and a controller having an input channel for receiving the signal and a calculating unit for determining a measure relating to the properties of the paper web from the signal.Type: ApplicationFiled: October 28, 2011Publication date: August 29, 2013Applicant: IMEGO AKTIEBOLAGInventors: Vessen Vassilev, Borys Stoew, Gert Andersson, Jakob Blomgren
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Patent number: 8298457Abstract: The invention relates to a method of producing a movable lens structure that comprises the steps of: forming a lens from a lens material disposed on a carrier of another material (step 58), and forming a micromechanical structure from the carrier (step 60), wherein the forming of the lens takes place before the forming of the micromechanical structure. With this method a simplified production method is obtained that simplifies difficult compatibility requirements between micromechanics and lens that can otherwise be hard to meet.Type: GrantFiled: November 4, 2003Date of Patent: October 30, 2012Assignee: Imego ABInventors: Gert Andersson, Stefan Bengtsson, Sverker Hård, Anders Larsson, Fredrik Nikolajeff, Henrik Rödjegård, Anna-Lena Hård, legal representative
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Publication number: 20120229317Abstract: A modulator is provided in operative engagement with a sensor element having a plurality of electrodes. The modulator has a single-bit quantizer electrically connected to a digital accumulator. The accumulator accumulates output information received from the single-bit quantizer. The accumulator converts the accumulated output information received from the single-bit quantizer to a multi-bit feedback signal and sends the multi-bit feedback signal in a primary feedback loop back to the sensor element. The quantizer sends a single-bit feedback signal in a secondary feedback loop back to a point before the quantizer.Type: ApplicationFiled: February 6, 2012Publication date: September 13, 2012Applicant: PGS Geophysical ASInventors: Mats Carlsson, David Westberg, Gert Andersson, Nils Hedenstierna, Sjoerd Haasl
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Patent number: 7814791Abstract: The present invention is related to sensor arrangements and particularly to sensor arrangements for symmetric response in a x-, y- and z-coordinate system. The arrangement comprises four gyroscopes with one axis arranged into different directions of sensitivity.Type: GrantFiled: September 4, 2007Date of Patent: October 19, 2010Assignee: Imego ABInventors: Gert Andersson, Henrik Rodjegard
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Publication number: 20090087920Abstract: A method and apparatus for of assessing the blood concentration level in a human or animal subject, of a volatile blood constituent (preferably alcohol) is disclosed. The method comprises steps of positioning a sensor (21, 22) within the expiratory gas flow of the subject, wherein the sensor (21, 22) is configured to detect the presence of the constituent and provide a first output signal representative of the concentration of said constituent in air, and also to detect a presence of carbon dioxide and to provide a second output signal representative of the concentration of carbon dioxide in air. The flow of expiratory gases from the subject is sampled to provide a first signal and second signal in respect of the expiratory gases substantially simultaneously.Type: ApplicationFiled: October 17, 2006Publication date: April 2, 2009Inventors: Hakan Pettersson, Bertil Hok, Gert Andersson
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Publication number: 20090013783Abstract: The present invention is related to sensor arrangements and particularly to sensor arrangements for symmetric response in a x-, y- and z-coordinate system. The arrangement comprises four gyroscopes with one axis arranged into different directions of sensitivity.Type: ApplicationFiled: September 4, 2007Publication date: January 15, 2009Inventors: Gert Andersson, Henrik Rodjegard
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Patent number: 7108034Abstract: Device for the labeling of clothes including a label printer (1) and a fastening station (12), and a device for the transfer of the labels and holding these in position for fixing that includes a guide or slide plane next to which the printer is arranged so that the labels are ejected along the guide or plane. The guide is slightly curved in the label feed out direction. An endless belt is arranged above the guide in the label feed direction so that it can press the labels against the guide bringing the labels along to the fastening station (12). The label guide has essentially the same width as the labels and U-shaped upfolded and infolded edges for the guiding the labels.Type: GrantFiled: May 5, 2004Date of Patent: September 19, 2006Assignee: Dahlander Marking ABInventor: Gert Andersson
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Publication number: 20060012849Abstract: The invention relates to a method of producing a movable lens structure that comprises the steps of: forming a lens from a lens material disposed on a carrier of another material (step 58), and forming a micromechanical structure from the carrier (step 60), wherein the forming of the lens takes place before the forming of the micromechanical structure. With this method a simplified production method is obtained that simplifies difficult compatibility requirements between micromechanics and lens that can otherwise be hard to meet.Type: ApplicationFiled: November 4, 2003Publication date: January 19, 2006Applicant: Imego ABInventors: Gert Andersson, Stefan Bengtsson, Sverker Hard, Anders Larsson, Fredrik Nikolajeff, Henrik Rodjegard
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Patent number: 6951797Abstract: The present invention relates to a method of bonding a first member (110, 210, 130, 230, 410, 430, 510, 530, 610) to a second silicon member (120, 220, 420a, 420b, 600) through anodic bonding. The method comprises the steps of selectively depositing on said first member bondable sections (170a, 170b, 270, 470a, 470b, 470c, 570, 620) before bringing said first and second members together for anodic bonding.Type: GrantFiled: October 17, 2000Date of Patent: October 4, 2005Assignee: Imego ABInventors: Leif Bergstedt, Gert Andersson, Britta Ottosson
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Publication number: 20050016688Abstract: Device for the labeling of clothes including a label printer (1) and a fixing device (12), and a device for he transfer of the labels and holding these in position for fixing that includes a guide or slide plane next to which the printer is so arranged that the labels are ejected along the guide or plane. The guide is in the label feed out direction slightly curved, an endless rubber tape or string is arranged above the guide in the label feed direction so that it can press the labels against the guide bringing the labels along to the fixing station for the labels. The label guiding guide has essentially the same width as the labels and U-shaped upfolded and infolded edges for the guiding of the labels.Type: ApplicationFiled: May 5, 2004Publication date: January 27, 2005Inventor: Gert Andersson
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Patent number: 6834247Abstract: A gyroscope that may include various sources of error, with those sources of error each being dependent upon a different parameter, is associated with a simulation or “model” of the gyroscope which is typically a computer simulation. The computer simulation is provided with errors which can be adjusted to be identical with the errors present in the real gyroscope. An arrangement is provided to adjust the errors in the model of the gyroscope to be identical with the errors in the real gyroscope, that arrangement including Kalman filters which receive signals generated by subtracting the outputs of the real gyroscope and the model gyroscope, while simultaneously varying the various inputs to the real gyroscope. The Kalman filters also generate a signal which is an estimate of the angular rotation being sensed by the real gyroscope.Type: GrantFiled: July 3, 2002Date of Patent: December 21, 2004Assignee: Autoliv Development ABInventors: Nils Hiedenstierna, Gert Andersson, Per Svensson
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Publication number: 20030006671Abstract: A gyroscope that may include various sources of error, with those sources of error each being dependent upon a different parameter, is associated with a simulation or “model” of the gyroscope which is typically a computer simulation. The computer simulation is provided with errors which can be adjusted to be identical with the errors present in the real gyroscope. An arrangement is provided to adjust the errors in the model of the gyroscope to be identical with the errors in the real gyroscope, that arrangement including Kalman filters which receive signals generated by subtracting the outputs of the real gyroscope and the model gyroscope, whilst simultaneously varying the various inputs to the real gyroscope. The Kalman filters also generate a signal which is an estimate of the angular rotation being sensed by the real gyroscope.Type: ApplicationFiled: July 3, 2002Publication date: January 9, 2003Inventors: Nils Hiedenstierna, Gert Andersson, Per Svensson
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Patent number: 6467349Abstract: In a sensor for measuring angular velocity a body is formed from a planer substrate The body defines a beam, the opposed ends of which are adapted to be fixed in position, the beam having a preferential bending direction which makes an acute angle with the plane of the planar substrate. The beam carries an inertia mass comprising two arms interconnected by a connecting bar, the central part of the connecting bar being formed integrally with part of the beam. Capacitative plates located adjacent a conductive layer on the arms are provided with potentials which cause the inertia mass to rotate about the axis of the connecting bar with a “see-saw” action which, because of the configuration of the beam leads to a rotational oscillation of the inertia mass in the plane of the substrate. If the arrangement is rotated about an axis coincident with the connecting bar, the inertia mass rotates about an axis coincident with the beam with an oscillating rotation.Type: GrantFiled: September 12, 2000Date of Patent: October 22, 2002Assignee: Autoliv Development ABInventors: Gert Andersson, Nils Hedenstierna, Per Svensson
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Patent number: 4978503Abstract: A specifically-reactive sample-collecting and testing device possessing a cavity or cavities each having a dimension small enough to enable sample liquid to be drawn into the cavity by capillary action, wherein a surface of the cavity carries an immobilized reagent appropriate to the test to be carried out in the device, and wherein said surface is a surface of a transparent solid plate to act as a light-transmissive waveguide and forming a wall of the cavity, said plate having an edge which is substantially optically smooth and transverse to the plane of the plate.Type: GrantFiled: September 6, 1988Date of Patent: December 18, 1990Assignee: Ares-Serono Research & Development Limited PartnershipInventors: Ian A. Shanks, Alan M. Smith