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: 10496227
    Abstract: An embodiment of the invention provides a touch sensing apparatus, comprising: a light transmissive element (10) that defines a touch surface; a set of emitters (30a) arranged around the periphery of the touch surface to emit beams of light into the light transmissive element, wherein a first portion of the beams (50) of light propagate inside the light transmissive element while illuminating the touch surface such that an object touching the touch surface causes an attenuation of the propagating light, and wherein a second portion of the beams (90) of light pass out of the light transmissive element and are reflected to travel above the touch surface, a set of light detectors (30b) arranged around the periphery of the touch surface to receive light from the set of emitters from the transmissive element and from above the touch surface, wherein each light detector is arranged to receive light from more than one emitter.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: December 3, 2019
    Assignee: FlatFrog Laboratories AB
    Inventors: Ola Wassvik, Håkan Bergström, Ivan Karlsson, Thomas Craven-Bartle
  • 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
  • Patent number: 10367677
    Abstract: Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: July 30, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rul Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskár, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Bo Lincoln, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Johan Nilsson, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter Von Wrycza, Thomas Walldeen, Anders Wallén, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanil Zheng
  • Patent number: 10365768
    Abstract: A touch-sensitive apparatus operates by light frustration (FTIR) and comprises a light transmissive panel (1) that defines a front surface (5) and a rear surface (6), light emitters optically connected to the panel (1) so as to generate light that propagates by total internal reflection inside the panel, and light detectors (3) optically connected to the panel (1) so as to define a grid of propagation paths inside the panel (1) between pairs of light emitters and light detectors (3). Each light detector (3) is optically connected to the panel (1) via an angular filter (20). The filter (20) is applied to an outcoupling region on at least one of the front and rear surfaces (5, 6) and is configured to transmit light only within a confined range of angles with respect to the normal of the outcoupling region. The confined range extends from a lower angle limit ?min to an upper angle limit ?max.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: July 30, 2019
    Assignee: FlatFrog Laboratories AB
    Inventors: Thomas Craven-Bartle, Håkan Bergström, Ivan Karlsson, Ola Wassvik, David Sernelius
  • 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: 10350832
    Abstract: Disclosed embodiments relate to an induction sealing device for heat sealing packaging material for producing sealed packages of pourable food products. In some embodiments, the sealing device includes: an inductor device which interacts with said packaging material by means of at least one active surface; a flux-concentrating insert; and a supporting body made of heat-conducting material and housing said inductor device and said flux-concentrating insert, wherein said flux concentrating insert is made by a magnetic compound of a polymer and soft magnetic particles; and said flux concentrating insert interacts with said packaging material via at least one interactive surface.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: July 16, 2019
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Per Karlsson, Marko Stajkovic, Louis Carlioz, Håkan Andersson, Patrik Ingvarsson
  • 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
  • Publication number: 20090312167
    Abstract: The present invention relates to a method in connection with the manufacturing of a dosing roller, comprising the provision of a roller body (1) with an envelope surface (IA) on which a wire (4) is being wound such that plurality of turns of wire is formed in contact with the envelope surface (IA) and with adjoining turns of wire (4, 4?, 4?) in tight contact with each other, wherein for at least the major part of said adjoining turns of wire (4, 4?, 4?) the surface of the wire (4) which is outwardly exposed is being provided with protrusions (11) and depressions (12).
    Type: Application
    Filed: February 27, 2007
    Publication date: December 17, 2009
    Inventor: Håkan Karlsson
  • Patent number: 7633978
    Abstract: A laser arrangement is provided, in which a Lyot filter arrangement is operative to effect single mode operation. The birefringent element of the Lyot filter arrangement has a cavity folding mirror on one side thereof and a polarizing element on another side thereof, such that the free spectral range of the Lyot filter is improved. Preferably, the Lyot filter arrangement and the laser gain material are located in different branches of the folded cavity.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: December 15, 2009
    Assignee: Cobolt AB
    Inventors: Jonas Hellström, Gunnar Karlsson, Håkan Karlsson
  • Patent number: 7551653
    Abstract: A laser arrangement comprising a first and a second resonant cavity for generating a first and a second fundamental wavelength. A first and a second non-linear region are provided in the second cavity for sum-frequency mixing of the radiation generated in the first cavity and in the second cavity, and for frequency-doubling of the radiation generated in the second cavity, respectively.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: June 23, 2009
    Assignee: Cobolt AB
    Inventors: Stefan Spiekermann, Håkan Karlsson, Jenni Nordborg
  • Patent number: 7362783
    Abstract: A method of generating coherent radiation, wherein a first fundamental beam of radiation from a four level laser and a second fundamental beam of radiation from a three level laser are mixed in a non-linear body to obtain an output beam at the sum frequency of the two fundamental beams. The invention also relates to an arrangement for carrying out the method.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: April 22, 2008
    Assignee: Cobolt AB
    Inventors: Stefan Spiekermann, Katrin Ekvall, 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