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: 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: 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
  • 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
  • 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: 10014894
    Abstract: A down-conversion circuit for a receiver circuit is disclosed, the down-conversion circuit comprises a first passive switching mixer arranged to down-convert a received radio frequency, RF, signal with a first local oscillator, LO, signal (LO1) having a first duty cycle for generating a first down-converted signal at an output port of the first passive switching mixer. The down-conversion circuit further comprises a second passive switching mixer arranged to down-convert the received RF signal with a second LO signal (LO2) having the same LO frequency as the first LO signal (LO1) and a second duty cycle, different from the first duty cycle, for generating a second down-converted signal at an output port of the second passive switching mixer.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: July 3, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Imad Ud Din, Stefan Andersson, Henrik Sjoland, Johan Wernehag
  • Publication number: 20180163404
    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 mould 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: Application
    Filed: July 6, 2016
    Publication date: June 14, 2018
    Inventor: Stefan Andersson
  • Patent number: 9950187
    Abstract: A system and method for interactive therapy and diagnosis of a human or animal comprising at least one first radiation source for emission of a diagnostic radiation, at least one second radiation source for emission of a therapeutic radiation, and at least one radiation conductor adapted to conduct radiation to a tumor site at or in said human or animal. A non-mechanical operation mode selector directs the therapeutic radiation and/or the diagnostic radiation to the tumor site through the radiation conductors. The operation mode selector means is preferably a non-mechanical optical switch and/or an optical combiner. The system may be used for interactive interstitial photodynamic tumor therapy.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: April 24, 2018
    Assignee: SPECTRACURE AB
    Inventors: Marcelo Soto Thompson, Stefan Andersson Engels, Sune Svanberg
  • Patent number: 9923593
    Abstract: A transceiver suitable for frequency duplex division communication is disclosed. The transceiver comprises a transmitter, wherein the transmitter comprises a power amplifier; a receiver; an auxiliary power amplifier which is arranged to provide a controllable phase shift and gain output; a first filter arranged at an output of the power amplifier arranged to attenuate frequencies at a receiving frequency of the receiver; a second filter arrangement at an output of the auxiliary power amplifier arranged to attenuate frequencies at a receiving frequency of the receiver; and a signal transmission arrangement. The signal transmission arrangement is arranged to transmit signals provided from the transmitter through its power amplifier to a radio frequency, RF, connecting point, receive signals from the RF connecting point and provide the signals to the receiver, and provide signals from the auxiliary amplifier towards an input of the receiver.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 20, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Andersson, Imad ud Din, Daniel Eckerbert, Henrik Sjöland, Johan Wernehag
  • Patent number: 9871552
    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; a transmission port for connecting to an antenna or wire; a first filter connected between an output of the transmitter and the transmission port and arranged to pass signals at transmitter frequency and attenuate signals at receiver frequency; a transformer having a primary winding and a secondary winding, wherein the primary winding has one of its terminals connected to the transmission port; a second filter connected between another of the terminals of the primary winding and a reference voltage and arranged to attenuate signals at transmitter frequency and pass signals at receiver frequency; and an adaptive impedance circuit arranged to provide an adjustable resistance, connected between the output of the transmitter and the junction between the second filter and the another of th
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: January 16, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Imad ud Din, Stefan Andersson, Daniel Eckerbert, Henrik Sjöland, Johan Wernehag
  • Patent number: 9853801
    Abstract: A transceiver arrangement comprising a receiver and a transmitter arranged for frequency-division duplex communication with a communication network, a 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, a filtering arrangement connecting the receiver, transmitter, transmission port and balancing impedance circuit, and a common-mode signal reduction circuit is disclosed.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: December 26, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Henrik Sjoland, Johan Wernehag, Stefan Andersson
  • 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