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).

  • Patent number: 10371520
    Abstract: 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: Grant
    Filed: December 17, 2015
    Date of Patent: August 6, 2019
    Assignee: RISE ACREO AB
    Inventors: Gert Andersson, Erik Svensson, Borys Stoew, Nils Hedenstierna
  • Patent number: 9976858
    Abstract: 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: Grant
    Filed: December 17, 2015
    Date of Patent: May 22, 2018
    Assignee: RISE ACREO AE
    Inventors: Gert Andersson, Erik Svensson, Borys Stoew, Nils Hedenstierna
  • Publication number: 20170284803
    Abstract: 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: Application
    Filed: December 17, 2015
    Publication date: October 5, 2017
    Applicant: RISE Acreo AB
    Inventors: Gert ANDERSSON, Erik SVENSSON, Borys STOEW, Nils HEDENSTIERNA
  • Publication number: 20170268879
    Abstract: 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: Application
    Filed: December 17, 2015
    Publication date: September 21, 2017
    Applicant: RISE Acreo AB
    Inventors: Gert ANDERSSON, Erik SVENSSON, Borys STOEW, Nils HEDENSTIERNA
  • Patent number: 9366585
    Abstract: 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: Grant
    Filed: September 24, 2013
    Date of Patent: June 14, 2016
    Assignee: ACREO SWEDISH ICT AB
    Inventors: Gert Andersson, Milena Anguelova, Nils Hedenstierna, Alexandra Nafari, David Westberg
  • Publication number: 20140083210
    Abstract: 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: Application
    Filed: September 24, 2013
    Publication date: March 27, 2014
    Applicant: ACREO SWEDISH ICT AB
    Inventors: Gert ANDERSSON, Milena ANGUELOVA, Nils HEDENSTIERNA, Alexandra NAFARI, David WESTBERG
  • Patent number: 8599054
    Abstract: 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: Grant
    Filed: February 6, 2012
    Date of Patent: December 3, 2013
    Assignee: PGS Geophysical AS
    Inventors: Mats Carlsson, David Westberg, Gert Andersson, Nils Hedenstierna, Sjoerd Haasl
  • Publication number: 20130220158
    Abstract: 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: Application
    Filed: October 28, 2011
    Publication date: August 29, 2013
    Applicant: IMEGO AKTIEBOLAG
    Inventors: Vessen Vassilev, Borys Stoew, Gert Andersson, Jakob Blomgren
  • Patent number: 8298457
    Abstract: 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: Grant
    Filed: November 4, 2003
    Date of Patent: October 30, 2012
    Assignee: Imego AB
    Inventors: Gert Andersson, Stefan Bengtsson, Sverker Hård, Anders Larsson, Fredrik Nikolajeff, Henrik Rödjegård, Anna-Lena Hård, legal representative
  • Publication number: 20120229317
    Abstract: 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: Application
    Filed: February 6, 2012
    Publication date: September 13, 2012
    Applicant: PGS Geophysical AS
    Inventors: Mats Carlsson, David Westberg, Gert Andersson, Nils Hedenstierna, Sjoerd Haasl
  • Patent number: 7814791
    Abstract: 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: Grant
    Filed: September 4, 2007
    Date of Patent: October 19, 2010
    Assignee: Imego AB
    Inventors: Gert Andersson, Henrik Rodjegard
  • Publication number: 20090087920
    Abstract: 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: Application
    Filed: October 17, 2006
    Publication date: April 2, 2009
    Inventors: Hakan Pettersson, Bertil Hok, Gert Andersson
  • Publication number: 20090013783
    Abstract: 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: Application
    Filed: September 4, 2007
    Publication date: January 15, 2009
    Inventors: Gert Andersson, Henrik Rodjegard
  • Patent number: 7108034
    Abstract: 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: Grant
    Filed: May 5, 2004
    Date of Patent: September 19, 2006
    Assignee: Dahlander Marking AB
    Inventor: Gert Andersson
  • Publication number: 20060012849
    Abstract: 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: Application
    Filed: November 4, 2003
    Publication date: January 19, 2006
    Applicant: Imego AB
    Inventors: Gert Andersson, Stefan Bengtsson, Sverker Hard, Anders Larsson, Fredrik Nikolajeff, Henrik Rodjegard
  • Patent number: 6951797
    Abstract: 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: Grant
    Filed: October 17, 2000
    Date of Patent: October 4, 2005
    Assignee: Imego AB
    Inventors: Leif Bergstedt, Gert Andersson, Britta Ottosson
  • Publication number: 20050016688
    Abstract: 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: Application
    Filed: May 5, 2004
    Publication date: January 27, 2005
    Inventor: Gert Andersson
  • Patent number: 6834247
    Abstract: 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: Grant
    Filed: July 3, 2002
    Date of Patent: December 21, 2004
    Assignee: Autoliv Development AB
    Inventors: Nils Hiedenstierna, Gert Andersson, Per Svensson
  • Publication number: 20030006671
    Abstract: 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: Application
    Filed: July 3, 2002
    Publication date: January 9, 2003
    Inventors: Nils Hiedenstierna, Gert Andersson, Per Svensson
  • Patent number: 6467349
    Abstract: 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: Grant
    Filed: September 12, 2000
    Date of Patent: October 22, 2002
    Assignee: Autoliv Development AB
    Inventors: Gert Andersson, Nils Hedenstierna, Per Svensson
  • Patent number: 4978503
    Abstract: 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: Grant
    Filed: September 6, 1988
    Date of Patent: December 18, 1990
    Assignee: Ares-Serono Research & Development Limited Partnership
    Inventors: Ian A. Shanks, Alan M. Smith