Patents by Inventor Tomas Lundberg

Tomas Lundberg 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: 11463742
    Abstract: Mechanisms for predicting a multimedia session MOS are provided. The multimedia session has a video session and an audio session. The video quality and the audio quality are represented by vectors of per-time-unit scores of video quality and audio quality, respectively. The multimedia session is represented by a vector of the rebuffering start times of each rebuffering event, and a vector of the rebuffering durations of each rebuffering event. Audiovisual quality features are generated from the vectors of per-time-unit scores of video and audio quality. Buffering features are generated from the vector of rebuffering start times of each rebuffering event and the vector of rebuffering durations of each rebuffering event. A multimedia session MOS is then estimated based on the generated audiovisual quality features and the generated buffering features.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: October 4, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Tomas Lundberg, Jing Fu, Gunnar Heikkilä, David Lindero, Junaid Shaikh
  • Publication number: 20220219966
    Abstract: Apparatus for dispensing a beverage in which a bottle containing the beverage is placed in a cradle and a portion of the beverage flows into a heat exchanger in which the beverage is heated or cooled to a desired temperature. The heat exchanger may be divided into at least two zones with the beverage being heated or cooled to the desired temperature in an inlet zone and the beverage being maintained at the desired temperature in an outlet zone.
    Type: Application
    Filed: January 6, 2022
    Publication date: July 14, 2022
    Inventors: Max Tomas Lundberg, Per Bergelin, Anders Bruus, Michael Skovbjerg, Ann-Marie Finn, Kenneth Holck Jakobsen
  • Publication number: 20220030048
    Abstract: A method and a scoring node for estimating a user's Quality of Experience, QoE, when a service is delivered in a media stream to the user by means of a communication network. Quality-related parameters pertaining to the service delivery are extracted, and an individual opinion score is determined for each of a set of quality models by applying each respective quality model in the set on the quality-related parameters. An aggregated opinion score is then determined as a weighted average of the individual opinion scores. The aggregated opinion score can then be used as an estimation of the user's QoE for the service delivery, e.g. when evaluating the service and/or the communication network.
    Type: Application
    Filed: October 13, 2021
    Publication date: January 27, 2022
    Inventors: Tomas LUNDBERG, Jing FU, Gunnar HEIKKILÄ, Junaid SHAIKH
  • Publication number: 20210409820
    Abstract: It is provided a method, performed by a MOS, Mean Opinion Score, estimator, for predicting a multimedia session MOS. The multimedia comprises a video and an audio, wherein video quality is represented by a list of per time unit scores of a video quality, an initial buffering event and rebuffering events in the video, and wherein audio quality is represented by a list of per time unit scores of audio quality. The method comprises: generating video features from the list of per time unit scores of the video quality; generating audio features from the list of per time unit scores of the audio quality; generating buffering features from the initial buffering event and rebuffering events in the video; and estimating a multimedia session MOS from the generated video features, generated audio features and generated buffering features by using machine learning technique.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Inventors: Jing Fu, Junaid Shaikh, Tomas Lundberg, Gunnar Heikkilä
  • Patent number: 11178024
    Abstract: A method and a scoring node for estimating a user's Quality of Experience, QoE, when a service is delivered in a media stream to the user by means of a communication network. Quality-related parameters pertaining to the service delivery are extracted, and an individual opinion score is determined for each of a set of quality models by applying each respective quality model in the set on the quality-related parameters. An aggregated opinion score is then determined as a weighted average of the individual opinion scores. The aggregated opinion score can then be used as an estimation of the user's QoE for the service delivery, e.g. when evaluating the service and/or the communication network.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: November 16, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tomas Lundberg, Jing Fu, Gunnar Heikkilä, Junaid Shaikh
  • Patent number: 11122329
    Abstract: It is provided a method, performed by a MOS, Mean Opinion Score, estimator, for predicting a multimedia session MOS. The multimedia comprises a video and an audio, wherein video quality is represented by a list of per time unit scores of a video quality, an initial buffering event and rebuffering events in the video, and wherein audio quality is represented by a list of per time unit scores of audio quality. The method comprises: generating video features from the list of per time unit scores of the video quality; generating audio features from the list of per time unit scores of the audio quality; generating buffering features from the initial buffering event and rebuffering events in the video; and estimating a multimedia session MOS from the generated video features, generated audio features and generated buffering features by using machine learning technique.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: September 14, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jing Fu, Junaid Shaikh, Tomas Lundberg, Gunnar Heikkilä
  • Publication number: 20200322654
    Abstract: Mechanisms for predicting a multimedia session MOS are provided. The multimedia session has a video session and an audio session. The video quality and the audio quality are represented by vectors of per-time-unit scores of video quality and audio quality, respectively. The multimedia session is represented by a vector of the rebuffering start times of each rebuffering event, and a vector of the rebuffering durations of each rebuffering event. Audiovisual quality features are generated from the vectors of per-time-unit scores of video and audio quality. Buffering features are generated from the vector of rebuffering start times of each rebuffering event and the vector of rebuffering durations of each rebuffering event. A multimedia session MOS is then estimated based on the generated audiovisual quality features and the generated buffering features.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Inventors: Tomas Lundberg, Jing Fu, Gunnar Heikkilä, David Lindero, Junaid Shaikh
  • Publication number: 20200252309
    Abstract: A method and a scoring node for estimating a user's Quality of Experience, QoE, when a service is delivered in a media stream to the user by means of a communication network. Quality-related parameters pertaining to the service delivery are extracted, and an individual opinion score is determined for each of a set of quality models by applying each respective quality model in the set on the quality-related parameters. An aggregated opinion score is then determined as a weighted average of the individual opinion scores. The aggregated opinion score can then be used as an estimation of the user's QoE for the service delivery, e.g. when evaluating the service and/or the communication network.
    Type: Application
    Filed: April 20, 2020
    Publication date: August 6, 2020
    Inventors: Tomas LUNDBERG, Jing FU, Gunnar HEIKKILÄ, Junaid SHAIKH
  • Patent number: 10708636
    Abstract: There are provided mechanisms for predicting a multimedia session MOS. The multimedia session comprises a video session and an audio session, wherein video quality is represented by a vector of per-time-unit scores of video quality and wherein audio quality is represented by is a vector of per-time-unit scores of audio quality. The multimedia session is represented by a vector of rebuffering start times of each rebuffering event, a vector of rebuffering durations of each rebuffering event, and an initial buffering duration being the time between an initiation of the multimedia session and a start time of the multimedia session. The method comprises generating audiovisual quality features from the vector of per-time-unit scores of video quality and the vector of per-time-unit scores of audio quality.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: July 7, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tomas Lundberg, Jing Fu, Gunnar Heikkilä, David Lindegren, Junaid Shaikh
  • Patent number: 10666529
    Abstract: A method and a scoring node for estimating a user's Quality of Experience, QoE, when a service is delivered in a media stream to the user by means of a communication network. Quality-related parameters pertaining to the service delivery are extracted, and an individual opinion score is determined for each of a set of quality models by applying each respective quality model in the set on the quality-related parameters. An aggregated opinion score is then determined as a weighted average of the individual opinion scores. The aggregated opinion score can then be used as an estimation of the user's QoE for the service delivery, e.g. when evaluating the service and/or the communication network.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: May 26, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tomas Lundberg, Jing Fu, Gunnar Heikkilä, Junaid Shaikh
  • Publication number: 20190334803
    Abstract: An initial bitrate is selected for a video delivery session by a user equipment (5, 200) performing, during a time window from initiation of a video player application in the user equipment (5, 200) up to selection of a video content, network measurements of a current condition of a network used to deliver the video content to the user equipment (5, 200). A respective initial buffer duration is provided for each bitrate available for the video content and where these respective initial buffer durations are predicted based on at least one network metric derived from the network measurements. An initial bitrate for delivering the video content over the network to the user equipment is selected based on the respective initial buffer durations.
    Type: Application
    Filed: November 14, 2016
    Publication date: October 31, 2019
    Inventors: Selim Ickin, Tomas Lundberg
  • Publication number: 20190124375
    Abstract: There are provided mechanisms for predicting a multimedia session MOS. The multimedia session comprises a video session and an audio session, wherein video quality is represented by a vector of per-time-unit scores of video quality and wherein audio quality is represented by is a vector of per-time-unit scores of audio quality. The multimedia session is represented by a vector of rebuffering start times of each rebuffering event, a vector of rebuffering durations of each rebuffering event, and an initial buffering duration being the time between an initiation of the multimedia session and a start time of the multimedia session. The method comprises generating audiovisual quality features from the vector of per-time-unit scores of video quality and the vector of per-time-unit scores of audio quality.
    Type: Application
    Filed: June 29, 2017
    Publication date: April 25, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tomas Lundberg, Jing Fu, Gunnar Heikkilä, David Lindegren, Junaid Shaikh
  • Publication number: 20190052932
    Abstract: It is provided a method, performed by a MOS, Mean Opinion Score, estimator, for predicting a multimedia session MOS. The multimedia comprises a video and an audio, wherein video quality is represented by a list of per time unit scores of a video quality, an initial buffering event and rebuffering events in the video, and wherein audio quality is represented by a list of per time unit scores of audio quality. The method comprises: generating video features from the list of per time unit scores of the video quality; generating audio features from the list of per time unit scores of the audio quality; generating buffering features from the initial buffering event and rebuffering events in the video; and estimating a multimedia session MOS from the generated video features, generated audio features and generated buffering features by using machine learning technique.
    Type: Application
    Filed: February 22, 2017
    Publication date: February 14, 2019
    Inventors: Jing Fu, Junaid Shaikh, Tomas Lundberg, Gunnar Heikkilä
  • Publication number: 20180091386
    Abstract: A method and a scoring node for estimating a user's Quality of Experience, QoE, when a service is delivered in a media stream to the user by means of a communication network. Quality-related parameters pertaining to the service delivery are extracted, and an individual opinion score is determined for each of a set of quality models by applying each respective quality model in the set on the quality-related parameters. An aggregated opinion score is then determined as a weighted average of the individual opinion scores. The aggregated opinion score can then be used as an estimation of the user's QoE for the service delivery, e.g. when evaluating the service and/or the communication network.
    Type: Application
    Filed: March 7, 2016
    Publication date: March 29, 2018
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tomas LUNDBERG, Jing FU, Gunnar HEIKKILÄ, Junaid SHAIKH
  • Publication number: 20170176096
    Abstract: Apparatus for and method of rapidly chilling a beverage in which a vessel having high thermal mass relative to the amount of beverage to be introduced into the vessel is cooled through contact with a cooling module to a temperature low enough that a volume of beverage introduced into the vessel is rapidly cooled.
    Type: Application
    Filed: July 6, 2016
    Publication date: June 22, 2017
    Inventors: Max Tomas LUNDBERG, Per Daniel Bergelin
  • Publication number: 20170176059
    Abstract: Apparatus for and method of rapidly chilling a beverage in which a vessel having high thermal mass relative to the amount of beverage to be introduced into the vessel is cooled through contact with a cooling module to a temperature low enough that a volume of beverage introduced into the vessel is rapidly cooled.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Inventors: Max Tomas LUNDBERG, Per Daniel BERGELIN
  • Patent number: 9363684
    Abstract: A method of determining loss of IP packets that are transported over a network (102), where each IP packet comprises a number of data packets. The method comprises: i) extracting (501) a first data packet from a first IP packet (41), ii) extracting (502) a second data packet from a second IP packet, iii) retrieving (503, 504) a first sequence number from a first data packet and a second sequence number from a second data packet, where each of the sequence numbers is indicative of a sequence of data packets and has a value belonging to a set of a number of unique values, iv) calculating (505) a difference (?cc) between the sequence numbers, and v) determining (506) a number (k) of lost IP packets, as a function of the difference (?cc) between the sequence numbers. Related computer readable medium and customer equipment are also described.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: June 7, 2016
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jorgen Gustafsson, Gunnar Heikkila, Tomas Lundberg
  • Publication number: 20130194958
    Abstract: A method of determining loss of IP packets that are transported over a network (102), where each IP packet comprises a number of data packets. The method comprises: i) extracting (501) a first data packet from a first IP packet (41), ii) extracting (502) a second data packet from a second IP packet, iii) retrieving (503, 504) a first sequence number from a first data packet and a second sequence number from a second data packet, where each of the sequence numbers is indicative of a sequence of data packets and has a value belonging to a set of a number of unique values, iv) calculating (505) a difference (?cc) between the sequence numbers, and v) determining (506) a number (k) of lost IP packets, as a function of the difference (?cc) between the sequence numbers. Related computer readable medium and customer equipment are also described.
    Type: Application
    Filed: September 14, 2011
    Publication date: August 1, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Jorgen Gustafsson, Gunnar Heikkila, Tomas Lundberg
  • Patent number: 7860509
    Abstract: A method and arrangement for dynamically adapting thresholds used for selecting a codec mode to be used is presented. Thresholds are adapted in response to the current received signal quality. An estimate of actual prevailing received signal quality is obtained on which the adaptation is based. The present invention can be applied either on the mobile terminal side or on the network side, working on the uplink and/or the downlink. The thresholds can be modified on the receiving side, or, when operating in the network and working on the downlink, the threshold adaptation can be initiated in the terminal.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: December 28, 2010
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan H{dot over (a)}kansson, Stefan Bruhn, Tomas Lundberg
  • Patent number: 7283957
    Abstract: A multi-channel linear predictive analysis-by-synthesis signal encoding method detects (S26, S27) inter-channel correlation and select one of several possible encoding modes (S24, S29, S30) based on the detected correlation.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: October 16, 2007
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tor Björn Minde, Arne Steinarson, Jonas Svedberg, Tomas Lundberg