Patents by Inventor Stefan Andersson

Stefan 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).

  • Publication number: 20200278542
    Abstract: The present disclosure relates to an image generator device (100) for changing the direction of at least one emitted light cone at a surface (113), comprising an image generator (130) and a fibre optical faceplate (110) having a first (112) and a second surface (113), the fibre optical faceplate (110) being arranged to transmit light from the image generator (130) so at least a part of light entering the first surface (112) of the fibre optical faceplate (110) exits through the second surface (113) of the fibre optical faceplate (110) and pass through an aperture, wherein the fibre optical faceplate (110) comprises a multitude of optical fibres (111) and light exiting the second surface (113) through optical fibres (111) each form an emitted light cone.
    Type: Application
    Filed: February 20, 2020
    Publication date: September 3, 2020
    Inventors: Johan ZANDEN, Anna-Karin HOLMER, Stefan Andersson
  • Publication number: 20200235467
    Abstract: The disclosure relates to arrangements for antenna interfaces configurable to efficiently support different communication modes. This is achieved by an antenna connection circuit 10 for a communication device 1 wherein the antenna connection circuit 10 is configurable for communication modes. The antenna connection circuit comprises a first quarter-wave transformer qw1 coupled between an antenna port A and an transmitter port Tx, and a second quarter-wave transformer qw2 coupled between the antenna port A and a receiver port Rx. The antenna connection circuit further comprises a first ground switch s1 coupled between the receiver port Rx and a first ground connection g1, and a second ground switch s2 is coupled between the transmitter port Tx and a second ground connection g2.
    Type: Application
    Filed: September 22, 2017
    Publication date: July 23, 2020
    Inventors: Henrik Sjöland, Stefan Andersson
  • Publication number: 20200169345
    Abstract: A method for assisting in synchronization of slave clocks in a communication network comprises receiving, in a node of the communication network, a message comprising a value of a synchronization accuracy (?rec) of a first upstream node in the communication network. A value of an accuracy (?link) of a link latency unbalance between forward and reverse signalling in a link on which the node received the message is obtained. A value of a total synchronization accuracy (?tot) of the node comprises at least the accuracy (?link) of the link latency unbalance of the link on which the node received the message is calculated. A node for assisting in synchronization of slave clocks in a communication network is also presented.
    Type: Application
    Filed: May 12, 2017
    Publication date: May 28, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Stefan ANDERSSON
  • Patent number: 10623048
    Abstract: A transceiver arrangement comprises a receiver arranged for frequency-division duplex communication; a transmitter arranged for frequency-division duplex communication; a transmission port for connecting to an antenna; a balancing impedance circuit arranged to provide an impedance arranged to mimic the impedance at the transmission port; and a filtering arrangement, which comprises filters of a first type and filters of a second type, connecting the receiver, transmitter, transmission port and balancing impedance circuit. The filters of the first type are arranged to pass signals at transmitter frequency and attenuate signals at receiver frequency and are connected between the transmitter and the transmission port and between the receiver and the balancing impedance circuit.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: April 14, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Imad ud Din, Stefan Andersson, Chunyun Jian
  • Patent number: 10613327
    Abstract: A stabilization arrangement (10) for stabilizing an antenna mast (3), comprising an antenna mast (3) and a gyroscopic stabilizer device (12), wherein the gyroscopic stabilizer device (12) in turn comprises a flywheel (11), a flywheel axis (14), wherein the flywheel (11) is arranged about the flywheel axis (14), and a gimbal structure (13), wherein the flywheel (11) is suspended in the gimbal structure (13) and the gimbal structure (13) is configured to permit flywheel precession or tilting about at least one gimbal output axis (16). The gyroscopic stabilizer device (12) is fixedly arranged in connection to a first end portion (31) of the antenna mast (3) and the antenna mast (3) is fastenable to a supporting structure at a second end portion (32) of the antenna mast (3), wherein the gyroscopic stabilizer device (12) is configured to reduce movements in a plane perpendicular to the extension of the antenna mast (3).
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: April 7, 2020
    Assignee: SAAB AB
    Inventors: Johan Zanden, Anna-Karin Holmer, Stefan Andersson
  • Patent number: 10539800
    Abstract: The present disclosure relates devices and a method for monitoring a display image (2) in a transparent optical projection display. They disclose a display image monitor (1) comprising a fiber optic face plate (4) and an image sensor (5). The fiber optic face plate (4) comprises a first surface (4a) with optic fiber ends and a second surface (4b) with corresponding optic fiber ends and transfers light from the first surface (4a) to the second surface (4b) through the optic fibers, wherein the first surface abuts against a part (2a) of the display image (2) at a focused image plane (2b) and thus the light of the part of the display image enters the optic fiber ends and wherein the second surface is arranged to direct the part of the display image to the image sensor, thereby transferring the part of the display image to the image sensor.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: January 21, 2020
    Assignee: SAAB AB
    Inventors: Anna-Karin Holmer, Johan Zanden, Stefan Andersson
  • Publication number: 20190339518
    Abstract: A stabilization arrangement (10) for stabilizing an antenna mast (3), comprising an antenna mast (3) and a gyroscopic stabilizer device (12), wherein the gyroscopic stabilizer device (12) in turn comprises a flywheel (11), a flywheel axis (14), wherein the flywheel (11) is arranged about the flywheel axis (14), and a gimbal structure (13), wherein the flywheel (11) is suspended in the gimbal structure (13) and the gimbal structure (13) is configured to permit flywheel precession or tilting about at least one gimbal output axis (16). The gyroscopic stabilizer device (12) is fixedly arranged in connection to a first end portion (31) of the antenna mast (3) and the antenna mast (3) is fastenable to a supporting structure at a second end portion (32) of the antenna mast (3), wherein the gyroscopic stabilizer device (12) is configured to reduce movements in a plane perpendicular to the extension of the antenna mast (3).
    Type: Application
    Filed: November 25, 2016
    Publication date: November 7, 2019
    Inventors: Johan ZANDÉN, Anna-Karin HOLMER, Stefan ANDERSSON
  • Patent number: 10410516
    Abstract: Systems and methods for allowing a remote third party to obtain data from and/or control one or more geofenced vehicles. In some implementations, a method for adjusting desired vehicle operation in a geofenced region may comprise receiving geofencing data from within a vehicle comprising a location tracking system and, upon determining that the vehicle has entered a geofenced region, transmitting a notification to an authority. Upon receiving a request from the authority, the vehicle may perform an action comprising at least one of adjusting an operational parameter of a system within the vehicle impacting movement of the vehicle, adjusting an environmental parameter of a system within the vehicle relating to sensing of the vehicle's surroundings, and transmitting vehicle environmental data to the authority comprising information regarding the vehicle's surroundings.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: September 10, 2019
    Assignee: VEONEER US, INC.
    Inventors: Stefan Andersson, Christian Svensson, Scott A. Nist
  • Publication number: 20190245493
    Abstract: A power amplifier (20) for a transmitter circuit (10) is disclosed. The power amplifier (20) comprises at least one field-effect transistor (100, 100n, 100p) having a gate terminal (110, 110n, 110p) and a bulk terminal (120, 120n, 120p), wherein the at least one field-effect transistor (100, 100n, 100n) is configured to receive an input voltage at the gate terminal (110, 110p, 110n) and a dynamic bias voltage at the bulk terminal (120, 120n, 120p). Furthermore, the power amplifier (20) comprises a bias-voltage generation circuit (130). The input voltage is a linear function of an input signal. The bias-voltage generation circuit (130) is configured to generate the dynamic bias voltage as a nonlinear function of an envelope of the input signal.
    Type: Application
    Filed: October 14, 2016
    Publication date: August 8, 2019
    Inventors: Christian Elgaard, Stefan Andersson, Andreas Axholt, Imad ud Din
  • Patent number: 10348356
    Abstract: A transceiver suitable for frequency division duplex (FDD) communication is disclosed. In one exemplary embodiment, a transmitter leakage reduction circuit for a transceiver is described. The transmitter leakage reduction circuit comprises an auxiliary power amplifier, first and second filters, and a signal transmission arrangement. The auxiliary power amplifier is configured to provide an auxiliary power amplifier output signal that represents an output signal of a power amplifier of the transmitter with a controllable phase shift or gain output. The first and second filters are configured to attenuate any signals in the receive frequency band of the respective power amplifier output signal and auxiliary power amplifier output signal. The signal transmission arrangement is configured to suppress a contribution of the power amplifier output signal from a signal received from an RF connecting point using the auxiliary power amplifier output signal to obtain a received signal that is input to the receiver.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: July 9, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Andersson, Imad ud Din, Daniel Eckerbert, Henrik Sjöland, Johan Wernehag
  • Publication number: 20190109615
    Abstract: A transceiver arrangement comprises a receiver arranged for frequency-division duplex communication; a transmitter arranged for frequency-division duplex communication; a transmission port for connecting to an antenna; a balancing impedance circuit arranged to provide an impedance arranged to mimic the impedance at the transmission port; and a filtering arrangement, which comprises filters of a first type and filters of a second type, connecting the receiver, transmitter, transmission port and balancing impedance circuit. The filters of the first type are arranged to pass signals at transmitter frequency and attenuate signals at receiver frequency and are connected between the transmitter and the transmission port and between the receiver and the balancing impedance circuit.
    Type: Application
    Filed: December 5, 2018
    Publication date: April 11, 2019
    Inventors: Imad ud Din, Stefan Andersson, Chunyun Jian
  • Patent number: 10246878
    Abstract: Stackable wall spacer adapted for automated distribution using a feeder device and adapted to support a reinforcement grid, where the wall spacer comprises a plurality of leg sections each having a lower foot adapted to be placed on a mold surface for the concrete, where a plurality of wall spacers can be stacked in each other with the feet of one wall spacer extending into corresponding voids of a subsequent wall spacer, where the side wall of a leg section is parallel with the side wall of a leg section of a subsequent wall spacer. The advantage of the invention is that the wall spacers can be stacked in a space saving manner in each other, which allows a cost-efficient storage and transportation of wall spacers. The invention further allows for wall spacers that can be distributed by using a hand-held or automatic feeder device. Further, a reinforcement grid can be supported by a wall spacer regardless of the position of the spacer.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: April 2, 2019
    Assignee: Innovativ Plast i Vaest AB
    Inventor: Stefan Andersson
  • Patent number: 10200079
    Abstract: A transceiver arrangement comprises a receiver arranged for frequency-division duplex communication; a transmitter arranged for frequency-division duplex communication; a transmission port for connecting to an antenna; a balancing impedance circuit arranged to provide an impedance arranged to mimic the impedance at the transmission port; and a filtering arrangement, which comprises filters of a first type and filters of a second type, connecting the receiver, transmitter, transmission port and balancing impedance circuit. The filters of the first type are arranged to pass signals at transmitter frequency and attenuate signals at receiver frequency and are connected between the transmitter and the transmission port and between the receiver and the balancing impedance circuit.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: February 5, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Imad ud Din, Stefan Andersson, Chunyun Jian
  • Patent number: 10196029
    Abstract: A cover element (10) for an airbag unit having a stationary section, a first flap (14), and a second flap (20), wherein the first flap (14) is connected to the stationary section by at least one first hinge (31), and the second flap (20) by at least one second hinge (32). The two flaps (14, 20) are connected to each other by a tear connection (35). The first flap (14) has an outer area (16) and an emblem area (18), which protrude at least partially from the outer area (16) and extend into the second flap (20). In order that the emblem area (18) is not in the way of the expanding airbag even if the emblem area (18) is relatively large, the emblem area (18) is connected to the outer area (16) of the first flap (14) by a third hinge (33), so that the emblem area (18) can swing against the outer area (16) when the first flap (14) is open.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: February 5, 2019
    Assignee: AUTOLIV DEVELOPMENT AB
    Inventors: Anders Einarsson, Johan Fritzen, Jonas Svantesson, Mikael Dahlgren, Stefan Andersson, Carl-Fredrik Anulf
  • Publication number: 20190025594
    Abstract: The present disclosure relates devices and a method for monitoring a display image (2) in a transparent optical projection display. They disclose a display image monitor (1) comprising a fiber optic face plate (4) and an image sensor (5). The fiber optic face plate (4) comprises a first surface (4a) with optic fiber ends and a second surface (4b) with corresponding optic fiber ends and transfers light from the first surface (4a) to the second surface (4b) through the optic fibers, wherein the first surface abuts against a part (2a) of the display image (2) at a focused image plane (2b) and thus the light of the part of the display image enters the optic fiber ends and wherein the second surface is arranged to direct the part of the display image to the image sensor, thereby transferring the part of the display image to the image sensor.
    Type: Application
    Filed: January 5, 2016
    Publication date: January 24, 2019
    Inventors: Anna-Karin Holmer, Johan Zanden, Stefan Andersson
  • Patent number: 10143380
    Abstract: A method and system for luminescence molecular imaging or tomography of a region of interest in a scattering medium is disclosed. The system comprises a non-linear luminescent marker material arranged in the scattering medium, one or more light sources positioned by at least one light source position for exciting said luminescent marker by excitation light emitted by said one or more light sources into an excitation volume, a detector at a luminescent light detection position detecting luminescence from said luminescent marker due to said excitation light, wherein said excitation light comprises pulsed excitation light.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: December 4, 2018
    Assignee: Lumito AB
    Inventors: Stefan Andersson Engels, Can Xu, Haichun Liu, Pontus Svenmarker
  • Patent number: 10084506
    Abstract: A transceiver front-end for a communication device is connectable to a signal transmission and reception arrangement adapted to transmit a transmit signal having a transmit frequency and to receive a receive signal having a receive frequency. The transceiver front-end is also connectable to a transmitter adapted to produce the transmit signal, and to a receiver adapted to process the receive signal. The transceiver front-end comprises a transmit frequency suppression filter arrangement and a receive frequency suppression filter arrangement. The transmit frequency suppression filter arrangement is adapted to suppress transfer of a signal having the transmit frequency and to pass a signal having the receive frequency. The receive frequency suppression filter arrangement is adapted to suppress transfer of a signal having the receive frequency and to pass a signal having the transmit frequency.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: September 25, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Henrik Sjoland, Stefan Andersson, Imad ud Din, Johan Wernehag
  • Patent number: 10027465
    Abstract: A transceiver arrangement comprises a receiver arranged for frequency-division duplex communication with a communication network; a transmitter arranged for frequency-division duplex communication with the communication network; an transmission port for connecting to an antenna; a balancing impedance circuit arranged to provide an adaptive impedance arranged to mimic the impedance at the transmission port; and a filtering arrangement, which comprises filters of a first type and filters of a second type, connecting the receiver, transmitter, transmission port and balancing impedance circuit. The filters of the first type are arranged to pass signals at transmitter frequency and attenuate signals at receiver frequency and are connected between the transmitter and the transmission port and between the receiver and the balancing impedance circuit.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: July 17, 2018
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Henrik Sjöland, Stefan Andersson, Johan Wernehag
  • Publication number: 20180191396
    Abstract: A transceiver suitable for frequency division duplex (FDD) communication is disclosed. In one exemplary embodiment, a transmitter leakage reduction circuit for a transceiver is described. The transmitter leakage reduction circuit comprises an auxiliary power amplifier, first and second filters, and a signal transmission arrangement. The auxiliary power amplifier is configured to provide an auxiliary power amplifier output signal that represents an output signal of a power amplifier of the transmitter with a controllable phase shift or gain output. The first and second filters are configured to attenuate any signals in the receive frequency band of the respective power amplifier output signal and auxiliary power amplifier output signal. The signal transmission arrangement is configured to suppress a contribution of the power amplifier output signal from a signal received from an RF connecting point using the auxiliary power amplifier output signal to obtain a received signal that is input to the receiver.
    Type: Application
    Filed: February 27, 2018
    Publication date: July 5, 2018
    Inventors: Stefan Andersson, Imad ud Din, Daniel Eckerbert, Henrik Sjöland, Johan Wernehag
  • Patent number: RE47020
    Abstract: A wireless communication device provides a method of certificate-based access control. Particularly, the device establishes a secure communications session with a device management server. Rather than use access control lists to control access to the functions and services on the device, however, the device uses the certificate that was employed to establish the secure session to control access.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: August 28, 2018
    Assignee: Sony Mobile Communications Inc.
    Inventors: Svante Alnås, Stefan Andersson