Patents by Inventor Bengi Karacali

Bengi Karacali 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: 11082313
    Abstract: A method for detecting Quality of Service degradation in a network flow includes collecting time series data representing statistical information pertaining to a network flow registered with a network flow monitoring service. The time series data is collected from at least two network elements on a path of the network flow configured to report the time series data. The method further includes indicating Quality of Service degradation in the network flow based on a similarity of the time series data to expected time series data being below a specified similarity threshold, and triggering at least one action to address the similarity being below the specified similarity threshold.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: August 3, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Mohammad Banikazemi, Hubertus Franke, Bengi Karacali-Akyamac, John M. Tracey
  • Patent number: 10904095
    Abstract: Techniques for network performance assessment are described. Techniques may include collecting initial measurements relating to transmission of probe traffic between endpoints of endpoint pairs in a plurality of endpoint pairs and clustering the plurality of endpoints into a plurality of endpoint groups. The method may also include determining a plurality of endpoint group pairs and generating a network performance assessment, based on measuring performance metrics pertaining to traffic between endpoints within the endpoint groups in the plurality of endpoint group pairs.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: January 26, 2021
    Assignee: International Business Machines Corporation
    Inventors: Bengi Karacali-Akyamac, John Michael Tracey, Claude Basso, Paul Crumley, Wesley Michael Felter
  • Publication number: 20200021493
    Abstract: Techniques for network performance assessment are described. Techniques may include collecting initial measurements relating to transmission of probe traffic between endpoints of endpoint pairs in a plurality of endpoint pairs and clustering the plurality of endpoints into a plurality of endpoint groups. The method may also include determining a plurality of endpoint group pairs and generating a network performance assessment, based on measuring performance metrics pertaining to traffic between endpoints within the endpoint groups in the plurality of endpoint group pairs.
    Type: Application
    Filed: July 11, 2018
    Publication date: January 16, 2020
    Inventors: Bengi Karacali-Akyamac, John Michael Tracey, Claude Basso, Paul Crumley, Wesley Michael Felter
  • Patent number: 10523533
    Abstract: One aspect includes a method to assess virtual network performance, comprising: selecting at least a given pair of endpoints; determining at least one virtual path between the given pair of endpoints; determining at least one underlying network path between the given pair of endpoints; generating one or more flows between the given pair of endpoints over both the virtual path and the underlying network path; collecting one or more measurements for the virtual path and for the underlying network path; and determining at least one score for the given pair of endpoints at least in part by computing at least one ratio between at least one of the one or measurements for the virtual path and at least one of the one or more measurements for the underlying network path.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: December 31, 2019
    Assignee: International Business Machines Corporation
    Inventors: Bengi Karacali-Akyamac, John M. Tracey
  • Publication number: 20190334797
    Abstract: A method for detecting Quality of Service degradation in a network flow includes collecting time series data representing statistical information pertaining to a network flow registered with a network flow monitoring service. The time series data is collected from at least two network elements on a path of the network flow configured to report the time series data. The method further includes indicating Quality of Service degradation in the network flow based on a similarity of the time series data to expected time series data being below a specified similarity threshold, and triggering at least one action to address the similarity being below the specified similarity threshold.
    Type: Application
    Filed: July 10, 2019
    Publication date: October 31, 2019
    Inventors: Mohammad Banikazemi, Hubertus Franke, Bengi Karacali-Akyamac, John M. Tracey
  • Patent number: 10425302
    Abstract: Methods and a system are provided for detecting a Quality of Service degradation in a network flow. A method includes configuring, by a monitoring element, at least two network elements on a path of a network flow to report statistical information pertaining to the network flow as time series data. The method further includes collecting, by the monitoring element, the time series data from the network elements. The method also includes computing, by the monitoring element, a similarity of the time series data. The method additionally includes indicating, by the monitoring element, the Quality of Service degradation when the similarity is below a specified similarity threshold.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: September 24, 2019
    Assignee: International Business Machines Corporation
    Inventors: Mohammad Banikazemi, Hubertus Franke, Bengi Karacali-Akyamac, John M. Tracey
  • Publication number: 20170366417
    Abstract: One aspect includes a method to assess virtual network performance, comprising: selecting at least a given pair of endpoints; determining at least one virtual path between the given pair of endpoints; determining at least one underlying network path between the given pair of endpoints; generating one or more flows between the given pair of endpoints over both the virtual path and the underlying network path; collecting one or more measurements for the virtual path and for the underlying network path; and determining at least one score for the given pair of endpoints at least in part by computing at least one ratio between at least one of the one or measurements for the virtual path and at least one of the one or more measurements for the underlying network path.
    Type: Application
    Filed: June 21, 2016
    Publication date: December 21, 2017
    Inventors: Bengi Karacali-Akyamac, John M. Tracey
  • Publication number: 20170149637
    Abstract: Methods and a system are provided for detecting a Quality of Service degradation in a network flow. A method includes configuring, by a monitoring element, at least two network elements on a path of a network flow to report statistical information pertaining to the network flow as time series data. The method further includes collecting, by the monitoring element, the time series data from the network elements. The method also includes computing, by the monitoring element, a similarity of the time series data. The method additionally includes indicating, by the monitoring element, the Quality of Service degradation when the similarity is below a specified similarity threshold.
    Type: Application
    Filed: November 23, 2015
    Publication date: May 25, 2017
    Inventors: Mohammad Banikazemi, Hubertus Franke, Bengi Karacali-Akyamac, John M. Tracey
  • Publication number: 20160255382
    Abstract: System and method to calculate video frame delay in a video stream received by a telecommunications endpoint, the method including: locating reference features characteristic of content in the received video stream; calculating, by use of a processor, reduced reference features from the located reference features; receiving reduced reference features of a transmitted video stream, the transmitted video stream corresponding to the received video stream; calculating, by use of a processor, a received trajectory of the reduced reference features from the received video stream; calculating, by use of a processor, a transmitted trajectory of the reduced reference features from the transmitted video stream; and calculating, by use of a processor, video frame delay as a time shift between the received trajectory and the transmitted trajectory.
    Type: Application
    Filed: May 13, 2016
    Publication date: September 1, 2016
    Inventor: Bengi Karacali-Akyamac
  • Patent number: 9369742
    Abstract: System and method to calculate video frame delay in a video stream received by a telecommunications endpoint, the method including: locating reference features characteristic of content in the received video stream; calculating, by use of a processor, reduced reference features from the located reference features; receiving reduced reference features of a transmitted video stream, the transmitted video stream corresponding to the received video stream; calculating, by use of a processor, a received trajectory of the reduced reference features from the received video stream; calculating, by use of a processor, a transmitted trajectory of the reduced reference features from the transmitted video stream; and calculating, by use of a processor, video frame delay as a time shift between the received trajectory and the transmitted trajectory.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: June 14, 2016
    Assignee: Avaya Inc.
    Inventor: Bengi Karacali-Akyamac
  • Patent number: 9306852
    Abstract: A method and apparatus are disclosed that seek to improve the quality of service that is experienced during the transmission of a stream of packets across one or more paths. In particular, a transmitting node encodes a source stream of data (e.g., audio, video, etc.) into one or more sub-streams, and distributes those sub-streams onto multiple network transmission paths. In accordance with the illustrative embodiment of the present invention, the transmitting node evaluates the quality of service of a first network path that fails to provide a quality-of-service guarantee. When the quality of service of the first network path becomes unsatisfactory, the coding of one or more sub-streams that are being transmitted on a second network path is adjusted. In other words, the coding on a second channel is adjusted in response to the changing conditions on a first channel.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: April 5, 2016
    Assignee: Avaya Inc.
    Inventors: Eric John Diethorn, Bengi Karacali-Akyamac, Mark John Karol, Anjur Sundaresan Krishnakumar, Parameshwaran Krishnan, Jean Meloche
  • Patent number: 9271055
    Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for variable video degradation counter-measures. A system configured according to this disclosure transmits a video communication over a network, detects the video quality degradation of the video communication, selects an appropriate counter-measure based at least in part on the particular type of degradation encountered, and implements the appropriate counter-measure. If multiple transmission paths are available in the system, either completely or partially disjoint, the paths can be evaluated based on ability to deliver video traffic. Throughout the transmission the system continues measuring and monitoring the video quality in real-time. The system can also accurately respond to the type and degree of the degradation by matching the type and degree of degradation to a table containing corresponding counter-measures.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: February 23, 2016
    Assignee: Avaya Inc.
    Inventor: Bengi Karacali-Akyamac
  • Patent number: 8868715
    Abstract: A system visualizes and generates reports from stored data, concerning various measured parameters related to a network carrying call traffic. The network is displayed in an easily recognized arrangement, with various parameters being indicated by different shapes and colors for each device on the network. The parameters are changed to indicate the status of the network at different times. More detailed information about a parameter, a device or a path between devices may be obtained simply using a mouse or keystrokes. A variety of different types of detailed displays allows the operator to troubleshoot problems in the network.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: October 21, 2014
    Assignee: Volli Polymer GmbH LLC
    Inventors: Mark J. Bearden, Lorraine Denby, Bengi Karacali, Jean Meloche, David Thomas Stott
  • Patent number: 8867013
    Abstract: System and method to detect video quality degradation in a video stream received by a telecommunications endpoint, the method including: locating reference features characteristic of content in the received video stream; calculating reduced reference features from the located reference features; receiving reduced reference features of a transmitted video stream, the transmitted video stream corresponding to the received video stream; calculating a distance between the reduced reference features in the received video stream and the reduced reference features of the transmitted video stream; and detecting video quality degradation when the calculated distance exceeds a predetermined threshold.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: October 21, 2014
    Assignee: Avaya Inc.
    Inventors: Anjur S. Krishnakumar, Bengi Karacali-Akyamac
  • Publication number: 20140165085
    Abstract: System and method to calculate video frame delay in a video stream received by a telecommunications endpoint, the method including: locating reference features characteristic of content in the received video stream; calculating, by use of a processor, reduced reference features from the located reference features; receiving reduced reference features of a transmitted video stream, the transmitted video stream corresponding to the received video stream; calculating, by use of a processor, a received trajectory of the reduced reference features from the received video stream; calculating, by use of a processor, a transmitted trajectory of the reduced reference features from the transmitted video stream; and calculating, by use of a processor, video frame delay as a time shift between the received trajectory and the transmitted trajectory.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 12, 2014
    Applicant: AVAYA INC.
    Inventor: Bengi Karacali-Akyamac
  • Patent number: 8619588
    Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for approximating video transmission quality capability through a communications network. Initially, a processor is used to insert data into the network through a first endpoint that is delivered to a second endpoint. Then, at least one characteristic of the network between the first and second endpoints is determined based on how the second endpoint receives the data. After the at least one characteristic is determined, a representative video segment is selected based on the at least one characteristic. Finally, the representative video segment is output to demonstrate the video transmission quality capabilities of the network.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: December 31, 2013
    Assignee: Avaya Inc.
    Inventor: Bengi Karacali-Akyamac
  • Patent number: 8543681
    Abstract: A system discovers the topology of devices in a network, such as all of the layer-2 and layer-3 devices, including routers and switches. The devices are mapped, as well as the links that join them. The devices are polled using SNMP requests. Route tables are derived from each router to determine addresses of the devices. A spanning tree process is used to discover layer-2 devices. Connections between layers are then discovered. Where information is incomplete, an undiscovered router cloud is recognized.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: September 24, 2013
    Assignee: Volli Polymer GmbH LLC
    Inventors: Mark J. Bearden, Lorraine Denby, Bengi Karacali, Jean Meloche, David Thomas Stott
  • Publication number: 20130194434
    Abstract: System and method to detect video quality degradation in a video stream received by a telecommunications endpoint, the method including: locating reference features characteristic of content in the received video stream; calculating reduced reference features from the located reference features; receiving reduced reference features of a transmitted video stream, the transmitted video stream corresponding to the received video stream; calculating a distance between the reduced reference features in the received video stream and the reduced reference features of the transmitted video stream; and detecting video quality degradation when the calculated distance exceeds a predetermined threshold.
    Type: Application
    Filed: August 17, 2012
    Publication date: August 1, 2013
    Applicant: Avaya Inc.
    Inventors: Anjur S. Krishnakumar, Bengi Karacali-Akyamac
  • Patent number: 8391154
    Abstract: A technique that seeks to direct and re-direct streams of packets through a packet network without adversely affecting the quality of service of existing streams is disclosed. In accordance with the illustrative embodiment of the present invention, streams of packets that are directed and re-directed through a packet network are initially put on probation. During the probation period, a quality-of-service measure for the stream is compared with a threshold whose value is initially high and decreases with time. This has the advantageous affect of noticing problems quickly so that they can be remediated quickly.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: March 5, 2013
    Assignee: Avaya Inc.
    Inventors: Bengi Karacali-Akyamac, Mark John Karol, Parameshwaran Krishnan, Jean Meloche
  • Publication number: 20130055331
    Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for variable video degradation counter-measures. A system configured according to this disclosure transmits a video communication over a network, detects the video quality degradation of the video communication, selects an appropriate counter-measure based at least in part on the particular type of degradation encountered, and implements the appropriate counter-measure. If multiple transmission paths are available in the system, either completely or partially disjoint, the paths can be evaluated based on ability to deliver video traffic. Throughout the transmission the system continues measuring and monitoring the video quality in real-time. The system can also accurately respond to the type and degree of the degradation by matching the type and degree of degradation to a table containing corresponding counter-measures.
    Type: Application
    Filed: August 23, 2011
    Publication date: February 28, 2013
    Applicant: Avaya, Inc.
    Inventor: Bengi KARACALI-AKYAMAC