Patents by Inventor Fredrik Tufvesson
Fredrik Tufvesson 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).
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Patent number: 11506745Abstract: A method for vehicular self-positioning is executed by a positioning device in a vehicle. The positioning device computes a current estimated position of the vehicle as a function of local motion data obtained from a motion sensor in the vehicle, and operates an RF module in the vehicle to receive a reference signal from one or more base stations in an environment of the vehicle, the respective base station being configured for telecommunication and being part of a 3GPP infrastructure. The positioning device further processes the reference signal to determine measured values of at least one path parameter for a selected set of multipath components, and operates a positioning algorithm, e.g. SLAM, on at least the current estimated position and the measured values to calculate a current output position of the vehicle and position information for an origin of each of the multipath components.Type: GrantFiled: June 1, 2018Date of Patent: November 22, 2022Assignee: TERRANET ABInventors: Junshi Chen, Meifang Zhu, Fredrik Tufvesson
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Patent number: 11405877Abstract: A sequence of downlink synchronization signals is transmitted to a device using a plurality of propagation channels. The plurality of propagation channels is selected according to an at least partly random pattern.Type: GrantFiled: September 2, 2016Date of Patent: August 2, 2022Assignee: SONY GROUP CORPORATIONInventors: Erik Bengtsson, Ove Edfors, Fredrik Tufvesson, Basuki Priyanto, Olof Zander
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Patent number: 11381323Abstract: A telematics verification system for the testing of a vehicle telematics system, including: a conductive ground plate adapted to be disposed under a vehicle when testing the vehicle telematics system using the telematics verification system; a conductive cover adapted to be disposed over and about an exterior surface of the vehicle and an antenna of the vehicle when testing the vehicle telematics system using the telematics verification system; a downlink antenna adapted to be arranged inside the conductive cover, wherein the downlink antenna is configured to wirelessly transmit a downlink signal inside the conductive cover, wherein the downlink signal is wirelessly receivable by the antenna of the vehicle; and an uplink antenna adapted to be arranged inside the conductive cover, wherein the uplink antenna is configured to wirelessly receive an uplink signal inside the conductive cover, wherein the uplink signal is wirelessly receivable from the antenna of the vehicle.Type: GrantFiled: July 6, 2021Date of Patent: July 5, 2022Assignee: Volvo Car CorporationInventors: Mikael Nilsson, Fredrik Tufvesson, Christian Lötbäck
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Patent number: 11337090Abstract: A telematics verification system for testing of a vehicle telematics system, the telematics verification system comprising: an electromagnetically shielded compartment adapted to be arranged to cover antennas of the vehicle when testing the vehicle telematics system using the telematics verification system while operating the vehicle; a set of downlink antennas adapted to be arranged inside the electromagnetically shielded compartment, the set of downlink antennas are configured to wirelessly transmit a downlink signal inside the electromagnetically shielded compartment, wherein the signal indicative of the downlink signal is wirelessly receivable by the antennas of the vehicle, and an uplink antenna adapted to be arranged inside the electromagnetically shielded compartment, the uplink antenna is adapted to wirelessly receive uplink signals transmitted by the antennas of the vehicle.Type: GrantFiled: January 9, 2020Date of Patent: May 17, 2022Assignee: Volvo Car CorporationInventors: Mikael Nilsson, Fredrik Tufvesson
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Publication number: 20200245165Abstract: A telematics verification system for testing of a vehicle telematics system, the telematics verification system comprising: an electromagnetically shielded compartment adapted to be arranged to cover antennas of the vehicle when testing the vehicle telematics system using the telematics verification system while operating the vehicle; a set of downlink antennas adapted to be arranged inside the electromagnetically shielded compartment, the set of downlink antennas are configured to wirelessly transmit a downlink signal inside the electromagnetically shielded compartment, wherein the signal indicative of the downlink signal is wirelessly receivable by the antennas of the vehicle, and an uplink antenna adapted to be arranged inside the electromagnetically shielded compartment, the uplink antenna is adapted to wirelessly receive uplink signals transmitted by the antennas of the vehicle.Type: ApplicationFiled: January 9, 2020Publication date: July 30, 2020Inventors: Mikael NILSSON, Fredrik TUFVESSON
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Publication number: 20200166601Abstract: A method for vehicular self-positioning is executed by a positioning device in a vehicle. The positioning device computes a current estimated position of the vehicle as a function of local motion data obtained from a motion sensor in the vehicle, and operates an RF module in the vehicle to receive a reference signal from one or more base stations in an environment of the vehicle, the respective base station being configured for telecommunication and being part of a 3GPP infrastructure. The positioning device further processes the reference signal to determine measured values of at least one path parameter for a selected set of multipath components, and operates a positioning algorithm, e.g. SLAM, on at least the current estimated position and the measured values to calculate a current output position of the vehicle and position information for an origin of each of the multipath components.Type: ApplicationFiled: June 1, 2018Publication date: May 28, 2020Applicant: TERRANET ABInventors: Junshi CHEN, Meifang ZHU, Fredrik TUFVESSON
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Publication number: 20190253989Abstract: A sequence of downlink synchronization signals is transmitted to a device using a plurality of propagation channels. The plurality of propagation channels is selected according to an at least partly random pattern.Type: ApplicationFiled: September 2, 2016Publication date: August 15, 2019Inventors: Erik Bengtsson, Ove EDFORS, Fredrik TUFVESSON, Basuki PRIYANTO, Olof ZANDER
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Patent number: 9689962Abstract: A self-positioning portable electronic device comprises a signal receiving unit for receiving a signal from one or more remote transmitters, and a local positioning unit for determining a local position of the device. The device operates to obtain a plurality of data samples from the signal at different time points during a measurement period with movement of the portable electronic device along an arbitrary trajectory, associate each data sample with a local position obtained from the local positioning unit so as to form a synthetic antenna array, obtain an array response of the synthetic antenna array, and identify the geographic location of the portable electronic device, by processing the synthetic antenna array as a function of the array response and using knowledge about the geographic location of the transmitter(s).Type: GrantFiled: May 19, 2011Date of Patent: June 27, 2017Assignees: Sony Corporation, Sony Mobile Communications Inc.Inventors: Fredrik Tufvesson, Anders J. Johansson, Johan Karedal
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Publication number: 20130113660Abstract: A self-positioning portable electronic device comprises a signal receiving unit for receiving a signal from one or more remote transmitters, and a local positioning unit for determining a local position of the device. The device operates to obtain a plurality of data samples from the signal at different time points during a measurement period with movement of the portable electronic device along an arbitrary trajectory, associate each data sample with a local position obtained from the local positioning unit so as to form a synthetic antenna array, obtain an array response of the synthetic antenna array, and identify the geographic location of the portable electronic device, by processing the synthetic antenna array as a function of the array response and using knowledge about the geographic location of the transmitter(s).Type: ApplicationFiled: May 19, 2011Publication date: May 9, 2013Applicant: SONY MOBILE COMMUNICATIONS ABInventors: Fredrik Tufvesson, Anders J. Johansson, Johan Karedal
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Publication number: 20100240315Abstract: A method, a system, a base unit and a search unit are disclosed for locating unknown cellular telephones and guiding the search for such devices. By way of base station functionality in the base unit, mobile stations in a search area are identified and assigned dedicated communication channels. In at least one embodiment, this is achieved through establishing communication between the base unit and the mobile stations in the search area. Search information concerning the mobile stations in the search area is established in the base unit. The search information is transferred from the base unit to the search unit. A search based on the search information is initiated with the search unit.Type: ApplicationFiled: July 16, 2008Publication date: September 23, 2010Inventors: Fredrik Tufvesson, Fredrik Thorsell, Marcus Blom