Patents by Inventor Håkan Karlsson

Håkan 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).

  • Patent number: 11753070
    Abstract: A method and system for compensating for vehicle disturbances during vehicle operation, including: an algorithm for obtaining predicted driving condition data from a database, wherein the database includes one or more of geospatial data and remote vehicle data; an algorithm for obtaining real-time vehicle state data from equipment communicatively connected to a vehicle; an algorithm for combining the predicted driving condition data and the real-time vehicle state data to formulate a desired steering torque request necessary to compensate for predicted and actual driving conditions experienced by the vehicle; and an algorithm for providing the desired steering torque request to a power steering assist system of the vehicle to compensate for the predicted and actual driving conditions experienced by the vehicle.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: September 12, 2023
    Assignee: Volvo Car Corporation
    Inventors: Anders Hansson, Andreas Carlsson, Markus Löfgren, Carl-Johan Häll, Håkan Karlsson
  • Publication number: 20230243733
    Abstract: A method of controlling a position at which laser beams used in flow cytometry impinge on a flow cell. The method includes directing each of the laser beams through a respective prism pair including a first and a second prism and. controlling a temperature of at least one of the first and second prisms. The first and second prisms are oriented such that an ellipticity of a laser beam passing through the prism pair is changed, and such that controlling the temperature of at least one of said first and second prisms results in a displacement of the laser beam along a direction corresponding to a minor transversal axis of the beam at the flow cell, wherein a position at which each of the plurality of laser beams impinges on the flow cell is controlled by controlling a temperature of at least one of the first and second prisms.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 3, 2023
    Applicant: Cobolt AB
    Inventors: Magnus RÅDMARK, Gunnar ELGCRONA, Håkan KARLSSON
  • Patent number: 11482832
    Abstract: A multi-wavelength laser module including a base plate, a plurality of radiation sources mounted on the base plate, at least one telescope including a first lens and a second lens wherein the second lens is arranged at a distance from the first lens along a radiation beam path, thereby creating a telescopic effect. A beam angle correction plate is arranged between the first lens and the second lens in the radiation beam path, the beam angle correction plate being angled in relation to the radiation beam path so as to parallel shift the radiation beam inside the telescope and thereby adjust the pointing direction of the radiation beam after passage of the telescope. Further, a method for assembling a multi-wavelength laser system provided with telescopes with such beam angle correction plate.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: October 25, 2022
    Assignee: COBOLT AB
    Inventors: Gunnar Elgcrona, Magnus Rådmark, Håkan Karlsson
  • Publication number: 20210291897
    Abstract: A method and system for compensating for vehicle disturbances during vehicle operation, including: an algorithm for obtaining predicted driving condition data from a database, wherein the database includes one or more of geospatial data and remote vehicle data; an algorithm for obtaining real-time vehicle state data from equipment communicatively connected to a vehicle; an algorithm for combining the predicted driving condition data and the real-time vehicle state data to formulate a desired steering torque request necessary to compensate for predicted and actual driving conditions experienced by the vehicle; and an algorithm for providing the desired steering torque request to a power steering assist system of the vehicle to compensate for the predicted and actual driving conditions experienced by the vehicle.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 23, 2021
    Inventors: Anders HANSSON, Andreas CARLSSON, Markus LÖFGREN, Carl-Johan HÄLL, Håkan KARLSSON
  • Patent number: 10904588
    Abstract: Methods and apparatus are described for stitching independently encoded content streams together such that they appear to be part of a single streaming session.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: January 26, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Nathaniel Stewart, Lei Li, Mairo Pedrini, Patrick Joseph Lewis, Ravindra Ganti, Parminder Singh, Gaurav Saxena, Kent Haakan Karlsson, Yongjun Wu
  • Publication number: 20200412091
    Abstract: A laser arrangement including a laser element; a volume Bragg grating, VBG, for providing optical feedback to the laser element along a beam path; a polarizing beam splitter, PBS, arranged in the beam path between the laser element and the VBG; and a polarization-modifying element arranged in the beam path between the PBS and the VBG element; wherein the polarization-modifying element is structured and arranged to alter a polarization state of light reflected from the VBG such that the PBS is operative to divide said light reflected from the VBG into a first portion that provides the optical feedback to the laser element and a second portion that provides an output beam from the laser arrangement. Embodiments may be useful for low wavenumber Raman spectroscopy.
    Type: Application
    Filed: November 17, 2017
    Publication date: December 31, 2020
    Applicant: Cobolt AB
    Inventors: Gunnar ELGCRONA, Magnus RÅDMARK, Håkan KARLSSON
  • Patent number: 10797396
    Abstract: It is provided an aperture coupled patch antenna comprising a substrate comprising a planar electrically conductive ground plane, an electrically conductive box arranged on and electrically connected to the ground plane to form an air filled cavity between the box and the ground plane, the box comprising an aperture in the form of at least one elongate slot. The antenna further comprises an electrically conductive patch arranged in parallel with the ground plane and at a distance from the box such that the aperture of the box is located between the patch and the ground plane and a distribution network comprising at least one elongate distribution element arranged in parallel with the ground plane between the ground plane and the patch, at a distance from the substrate and the ground plane and at a distance from the box such that a gap is formed between the distribution element and the box, wherein the extension of the distribution element intersects the extension of the aperture.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 6, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Ola Kaspersson, Anders Ek, Håkan Karlsson
  • Patent number: 10740618
    Abstract: Techniques for identifying hot spots in a stream of content of an omnidirectional camera for subsequent tracking of the hot spot and presenting the view of the hot spot are described herein. A stream of content of a real space may be received where a frame of the stream content is associated with time information. Locations and identifications of objects within a particular frame of a plurality of frames of the stream of content may be determined based at least in part on an object detection algorithm. Metadata may be generated that includes the identified objects and the locations of the identified objects. The metadata may be interleaved into the stream of content prior to being presented to a user device. An updated view of the content may be presented that corresponds to tracking the object in subsequent frames of content captured by the camera of the real space.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: August 11, 2020
    Assignee: Amazon Technologies, Inc.
    Inventor: Kent Haakan Karlsson
  • Publication number: 20190252850
    Abstract: A multi-wavelength laser module including a base plate, a plurality of radiation sources mounted on the base plate, at least one telescope including a first lens and a second lens wherein the second lens is arranged at a distance from the first lens along a radiation beam path, thereby creating a telescopic effect. A beam angle correction plate is arranged between the first lens and the second lens in the radiation beam path, the beam angle correction plate being angled in relation to the radiation beam path so as to parallel shift the radiation beam inside the telescope and thereby adjust the pointing direction of the radiation beam after passage of the telescope. Further, a method for assembling a multi-wavelength laser system provided with telescopes with such beam angle correction plate.
    Type: Application
    Filed: June 30, 2017
    Publication date: August 15, 2019
    Applicant: Cobolt AB
    Inventors: Gunnar ELGCRONA, Magnus RÅDMARK, Håkan KARLSSON
  • Publication number: 20190229422
    Abstract: It is provided an aperture coupled patch antenna comprising a substrate comprising a planar electrically conductive ground plane, an electrically conductive box arranged on and electrically connected to the ground plane to form an air filled cavity between the box and the ground plane, the box comprising an aperture in the form of at least one elongate slot. The antenna further comprises an electrically conductive patch arranged in parallel with the ground plane and at a distance from the box such that the aperture of the box is located between the patch and the ground plane and a distribution network comprising at least one elongate distribution element arranged in parallel with the ground plane between the ground plane and the patch, at a distance from the substrate and the ground plane and at a distance from the box such that a gap is formed between the distribution element and the box, wherein the extension of the distribution element intersects the extension of the aperture.
    Type: Application
    Filed: July 25, 2016
    Publication date: July 25, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ola KASPERSSON, Anders EK, Håkan KARLSSON
  • Patent number: 10313710
    Abstract: Techniques are described for synchronizing encoding processes between encoders. Timestamps are compared between encoders such that offsets can be determined and used by encoders to encode fragments for the same segments of media content.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: June 4, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Kent Haakan Karlsson, Gaurav Saxena
  • Patent number: 10277924
    Abstract: Methods and apparatus are described for stitching independently encoded content streams together such that they appear to be part of a single streaming session.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: April 30, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Nathaniel Stewart, Lei Li, Mairo Pedrini, Patrick Joseph Lewis, Ravindra Ganti, Parminder Singh, Gaurav Saxena, Kent Haakan Karlsson, Yongjun Wu
  • Patent number: 9692142
    Abstract: The disclosure relates to a node in a wireless communication arrangement, the node comprising an antenna arrangement that comprises a first and second inverted F antenna. The inverted F antennas comprise a corresponding first and second feed connection, first and second ground connection and a corresponding first and second radiating element mainly extending from the respective ground connection along a corresponding first and second longitudinal extension. The inverted F antennas are arranged on, or in, a plane. Furthermore, the first and second radiating elements are extending in opposite directions along their respective longitudinal extensions from the respective ground connections, the first longitudinal extension and the second longitudinal extension being mutually parallel. The closest distance between the first radiating element and the second radiating element exceeds 0.4*?0, where ?0 is the wavelength for the center frequency of the frequency band for which the inverted F antennas are intended.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: June 27, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Anders Ek, Ola Kaspersson, Håkan Karlsson
  • Publication number: 20160149316
    Abstract: The disclosure relates to a node in a wireless communication arrangement, the node comprising an antenna arrangement that comprises a first and second inverted F antenna. The inverted F antennas comprise a corresponding first and second feed connection, first and second ground connection and a corresponding first and second radiating element mainly extending from the respective ground connection along a corresponding first and second longitudinal extension. The inverted F antennas are arranged on, or in, a plane. Furthermore, the first and second radiating elements are extending in opposite directions along their respective longitudinal extensions from the respective ground connections, the first longitudinal extension and the second longitudinal extension being mutually parallel. The closest distance between the first radiating element and the second radiating element exceeds 0.4*?0, where ?0 is the wavelength for the center frequency of the frequency band for which the inverted F antennas are intended.
    Type: Application
    Filed: January 29, 2016
    Publication date: May 26, 2016
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Anders EK, Ola Kaspersson, Håkan Karlsson
  • Patent number: 8635727
    Abstract: The present invention relates to a variable-size bed (10) comprising a mattress core (16) and a base (14), which base is adapted to support at least a portion of the mattress core, wherein the mattress core and base have adjustable widths or lengths and each of the mattress core and base is changeable between an expanded state and a contracted state corresponding to an expanded state and a contracted state of the bed, respectively, and wherein the bed further comprises a cover means adapted to provide covering over the mattress core in both the expanded state and the contracted state of the bed. The present invention also relates to a vehicle comprising such a variable-size bed.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: January 28, 2014
    Assignee: Stjernfjadrar AB
    Inventors: Johan Dahlin, Claes Lindh, Olov Karlsson, Håkan Karlsson
  • Patent number: 8252380
    Abstract: A method in connection with coating, comprising a running web (8) arranged to be coated with a coating mix (11), coating means (1) arranged in connection with said web (8), a coating surface (6, 7) at the coating means (1) and arranged in contact with said web (8) to dose said coating mix (11), and said coating means (1) being provided with at least a first coating surface (6) and a second coating surface (7), in such a way that it is possible at said running web (8) to switch between the one (6) and the other (7) surfaces while at least one of said surfaces (6, 7) is in an active contact position.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: August 28, 2012
    Assignee: Mattssonforetagen I Uddevalla Akttiebolag
    Inventor: Håkan Karlsson
  • Publication number: 20100325810
    Abstract: The present invention relates to a variable-size bed (10) comprising a mattress core (16) and a base (14), which base is adapted to support at least a portion of the mattress core, wherein the mattress core and base have adjustable widths or lengths and each of the mattress core and base is changeable between an expanded state and a contracted state corresponding to an expanded state and a contracted state of the bed, respectively, and wherein the bed further comprises a cover means adapted to provide covering over the mattress core in both the expanded state and the contracted state of the bed. The present invention also relates to a vehicle comprising such a variable-size bed.
    Type: Application
    Filed: October 23, 2008
    Publication date: December 30, 2010
    Inventors: Johan Dahlin, Claes Lindh, Olov Karlsson, Håkan Karlsson
  • Patent number: 7801188
    Abstract: A laser is disclosed, which is suitable for efficient generation of continuous-wave laser light having a wavelength of about 400 nm or less. The short-wavelength light is generated by first frequency-doubling a fundamental wave, and then sum-frequency mixing the frequency-doubled wave and the fundamental wave. The non-linear interactions are effected by means of quasi-phasematching structures inside a resonant cavity where the fundamental wave is circulating. The sum-frequency mixing is effected using second or higher order quasi-phasematching, which allows for wider domains to be inverted for the quasi-phasematching structure compared to first order quasi-phasematching. Preferably, the sum-frequency mixing is effected using periodically poled stoichiometric lithium tantalate (PPSLT) for second or third order quasi-phasematching.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: September 21, 2010
    Assignee: Cobolt AB
    Inventors: Håkan Karlsson, Jonas Hellström
  • Publication number: 20100221438
    Abstract: A method in connection with coating, comprising a running web (8) arranged to be coated with a coating mix (11), coating means (1) arranged in connection with said web (8), a coating surface (6, 7) at the coating means (1) and arranged in contact with said web (8) to dose said coating mix (11), and said coating means (1) being provided with at least a first coating surface (6) and a second coating surface (7), in such a way that it is possible at said running web (8) to switch between the one (6) and the other (7) surfaces while at least one of said surfaces (6, 7) is in an active contact position.
    Type: Application
    Filed: November 28, 2006
    Publication date: September 2, 2010
    Inventor: Håkan Karlsson
  • Patent number: D647693
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: November 1, 2011
    Assignee: BabyBjörn AB
    Inventors: Ragnar Olegård, Håkan Karlsson, Sven-Erik Hänel, Matilda Linde Dellrud, Elenor Månsson