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).

  • Patent number: 9486640
    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: May 14, 2004
    Date of Patent: November 8, 2016
    Assignee: SpectraCure AB
    Inventors: Marcelo Soto Thompson, Stefan Andersson Engels, Sune Svanberg
  • Patent number: 9470891
    Abstract: A head-up display system for facilitating the use of night vision goggles for a person in a vehicle during night vision conditions, the system comprising a light source for providing light to an image source arranged to project an image on a semi-transparent combiner mirror arranged to superimpose the projected image onto a view of the environment in front of the vehicle. The system also comprises a first and a second light source for alternatively providing light to the image source; the first light source being arranged to emit light of a first color in a first light emission spectrum, perceived as green, and to be used during daylight conditions, and the second light source being arranged to emit light of a second color in a second light emission spectrum, perceived as yellow or orange, and to be used during night vision conditions.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: October 18, 2016
    Assignee: SAAB AB
    Inventors: Stefan Andersson, Arnold Fredriksson, Johan Zanden
  • Publication number: 20160294436
    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: January 20, 2015
    Publication date: October 6, 2016
    Inventors: Imad ud Din, Stefan Andersson, Chunyun Jian
  • Publication number: 20160254898
    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: Application
    Filed: October 4, 2013
    Publication date: September 1, 2016
    Inventors: Henrik Sjoland, Johan Wernehag, Stefan Andersson
  • Publication number: 20160239823
    Abstract: Disclosed is a method performed in a system comprising a first Body Area Network (BAN) enabled device and a second BAN enabled device, for performing secure payment at a payment counter by a user of the first and the second BAN enabled devices, the user wearing or carrying the first and the second BAN enabled devices; where the first and the second BAN enabled devices are paired for authorizing the user by the second BAN enabled device; the method comprises: establishing a connection between the payment counter and the first BAN enabled device; sending a BAN signal via BAN from the first BAN enabled device to the second BAN enabled device requiring confirmation from the second BAN enabled device that the second BAN enabled device is in contact with the user's body; receiving a confirmation BAN signal via BAN from the second BAN enabled device to the first BAN enabled device confirming that the second BAN enabled device is in contact with the user's body; receiving a request for payment from the payment counte
    Type: Application
    Filed: February 13, 2015
    Publication date: August 18, 2016
    Inventors: Henrik BENGTSSON, Stefan Andersson
  • Publication number: 20160241281
    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: Application
    Filed: April 27, 2016
    Publication date: August 18, 2016
    Inventors: Imad Ud Din, Stefan Andersson, Henrik Sjoland, Johan Wernehag
  • Patent number: 9413301
    Abstract: A noise-canceling LNA circuit for amplifying signals at an operating frequency f in a receiver circuit is disclosed. The LNA circuit comprises a first and a second amplifier branch, each having an input terminal connected to an input terminal of the LNA circuit. The first amplifier branch comprises an output terminal for supplying an output current of the first amplifier branch and a common source or common emitter main amplifier. The main amplifier has an input transistor having a first terminal, which is a gate or base terminal, operatively connected to the input terminal of the first amplifier branch, a shunt-feedback capacitor operatively connected between the first terminal of the input transistor and a second terminal, which is a drain or collector terminal, of the input transistor, and an output capacitor operatively connected between the second terminal of the input transistor and the output terminal of the first amplifier branch.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: August 9, 2016
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Sven Mattisson, Stefan Andersson
  • Publication number: 20160164486
    Abstract: A transformer filter arrangement including a transformer having a first winding and a second winding is provided. Both of the first and the second windings are located between an outer border and an inner border, which is inside the outer border. The transformer filter arrangement further includes at least one reactive sub circuit, each including at least one inductor. The first winding of the transformer is divided into a plurality of winding segments. At least a first one of the at least one reactive sub circuit being connected in series with the winding segments of the first winding between two such winding segments, and having at least one of the at least one inductor located inside said inner border.
    Type: Application
    Filed: February 16, 2016
    Publication date: June 9, 2016
    Inventors: Stefan ANDERSSON, Fenghao MU, Johan WERNEHAG
  • Patent number: 9359764
    Abstract: A stackable foundation spacer is adapted for automated distribution. The foundation spacer includes a lower bearing surface adapted to be placed on a foundation support surface for the concrete, a first support surface adapted to support the reinforcement grid in a plurality of support points, and an outer circumferential side wall connecting the lower bearing surface with the first support surface. The outer circumferential side wall is inclined outwards from the lower bearing surface to the first support surface with an angle ?, and the shape of the first support surface is larger than a mesh in the reinforcement grid that is to be supported. Distribution of foundation spacers can be automated by using a hand-held or automatic feeder device. Further, a reinforcement grid can be supported by a foundation spacer regardless of the position of the spacer.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: June 7, 2016
    Assignee: INNOVATIV PLAST I VÄST AB
    Inventor: Stefan Andersson
  • Patent number: 9356634
    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: January 23, 2013
    Date of Patent: May 31, 2016
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Imad ud Din, Stefan Andersson, Henrik Sjoland, Johan Wernehag
  • Publication number: 20160144503
    Abstract: A feeder device is adapted to distribute stackable reinforcement spacers. The feeder includes a body for holding a plurality of stackable reinforcement spacers, a release mechanism for releasing one reinforcement spacer at the time, a handle for holding the feeder device and a release grip for operating the release mechanism. Stackable reinforcement spacers can be distributed in a time-effective way. Since the size of the feeder device is not set by the size of the spacer, spacers of different sizes can be used with a single feeder device.
    Type: Application
    Filed: June 1, 2014
    Publication date: May 26, 2016
    Inventor: Stefan Andersson
  • Patent number: 9344039
    Abstract: A down-conversion circuit for a receiver circuit is disclosed. It comprises a first mixer arranged to down-convert an RF signal with a first LO signal (LO1), thereby generating a first down-converted signal. It further comprises a second mixer arranged to down-convert the RF signal with a second LO signal (LO2) having the same LO frequency as the first LO signal (LO1), but a different and a second duty cycle, thereby generating a second down-converted signal. The second mixer has an enabled and a disabled mode. The down-conversion circuit also comprises a third mixer arranged to down-convert the RF signal with the second LO signal (LO2), thereby generating a third down-converted signal.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: May 17, 2016
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Imad Ud Din, Stefan Andersson, Henrik Sjoland, Fredrik Tillman, Johan Wernehag
  • Patent number: 9344139
    Abstract: A transceiver is disclosed comprising a transmitter; a receiver; and a signal transmission arrangement. The transmitter comprises a power amplifier, and the signal transmission arrangement is arranged to transmit signals provided from the transmitter through its power amplifier, and arranged to receive signals and provide them to the receiver. The transceiver further comprises an auxiliary power amplifier which has controllable phase shift and gain; a first impedance element; a second impedance element; and a controller.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: May 17, 2016
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Henrik Sjoland, Stefan Andersson, Imad ud Din, Johan Wernehag
  • Publication number: 20160116736
    Abstract: A head-up display system for a vehicle facilitating the use of night vision goggles for a person in the vehicle during night vision conditions, the system comprising a light source for providing light to an image source, which image source is arranged to project an image on a semi-transparent combiner mirror; the combiner mirror being arranged to superimpose the projected image onto a view of the environment in front of the vehicle by transmitting light rays from the environment and at the same time reflecting the projected image towards the eyes of an observer wherein the system comprises a first and a second light source for alternatively providing light to the image source; the first light source being arranged to emit light of a first colour to be used during daylight conditions, and the second light source being arranged to emit light of a second colour to be used during night vision conditions, wherein the first colour is in a first light emission spectrum and perceived as green and the second colour is
    Type: Application
    Filed: June 17, 2013
    Publication date: April 28, 2016
    Applicant: SAAB AB
    Inventors: Stefan Andersson, Arnold Fredriksson, Johan Zanden
  • Patent number: 9317702
    Abstract: A user device provides a mechanism for securing messages communicated between trusted processes along an established Inter-Process Communication (IPC) channel. The mechanism permits the trusted processes to determine which messages to protect, and executes independently of platform-dependent IPC mechanisms.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: April 19, 2016
    Assignees: Sony Corporation, Sony Mobile Communications AB
    Inventors: Stefan Andersson, Petter Wallin
  • Patent number: 9312818
    Abstract: A common source or common emitter LNA circuit for amplifying signals at an operating frequency f in a receiver circuit is disclosed. The LNA circuit comprises an input transistor arranged to, in operation, be biased to have a transconductance gm at the operating frequency f, and having a first terminal, which is a gate or base terminal, operatively connected to an input terminal of the LNA circuit. The LNA circuit further comprises a shunt-feedback capacitor operatively connected between the first terminal of the input transistor and a second terminal, which is a drain or collector terminal, of the input transistor. Furthermore, the LNA circuit comprises an output capacitor operatively connected between the second terminal of the input transistor and an output terminal of the LNA circuit. The output capacitor has a capacitance value CL<gm/f.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: April 12, 2016
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Mattisson, Stefan Andersson
  • Publication number: 20160072542
    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: Application
    Filed: April 30, 2013
    Publication date: March 10, 2016
    Inventors: Imad ud Din, Stefan Andersson, Daniel Eckerbert, Henrik Sjöland, Johan Wernehag
  • Publication number: 20160065352
    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: Application
    Filed: April 26, 2013
    Publication date: March 3, 2016
    Inventors: Henrik SJÖLAND, Stefan ANDERSSON, Johan WERNEHAG
  • Patent number: 9264410
    Abstract: Systems and methods for dynamic trusted execution environment (TEE) hardware configuration are provided. A key update message including key update information is received and authenticated for a key stored in the TEE of a mobile computing device. The stored key may define access to hardware resources of the mobile computing device. The hardware configuration for the stored key in the TEE may be changed based upon the key update information.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: February 16, 2016
    Assignee: Sony Corporation
    Inventors: Pravat Dalbehera, Stefan Andersson, Rimpu Varshney, Petter Wallin
  • Publication number: 20160043767
    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: Application
    Filed: March 14, 2013
    Publication date: February 11, 2016
    Inventors: Stefan Andersson, Imad ud Din, Daniel Eckerbert, Henrik Sjöland, Johan Wernehag