Patents Assigned to Dialogic Corporation
  • Patent number: 10334289
    Abstract: Improved systems and methods of performing multimedia communications over multimedia communications networks, in which video data senders can maintain high video quality of experience (QoE) levels with increased reliability despite changes in available bandwidths of video data receivers. In the disclosed systems and methods, video encoding parameters employed by the video data senders, including at least the video frame size and/or the video frame rate, can be dynamically adapted to the available bandwidths of the video data receivers, taking into account possible effects of spatial scaling and/or temporal scaling of video frames on the resulting video QoE.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: June 25, 2019
    Assignee: Dialogic Corporation
    Inventors: Kyeong Ho Yang, Beril Erkin, Antony R. Martin
  • Patent number: 10250921
    Abstract: Systems, methods, and techniques for providing video forwarding in real-time video applications involving multiple devices. The techniques can be employed in WebRTC videoconferences, taking into account the heterogeneous natures of device display resolutions and networks in which the devices operate. The techniques employ a media server including an SFU having an adaptive video transcoder. The media server determines whether a benefit to QoE is achieved by performing video transcoding on large video streams produced by the respective devices. If a heterogeneity value of available network bandwidths is greater than a predetermined value and CPU/memory resources are available, then the adaptive video transcoder beneficially performs transcoding on the large video streams to produce corresponding small video streams, which are selectively forwarded to devices having low available network bandwidths.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: April 2, 2019
    Assignee: Dialogic Corporation
    Inventors: Kyeong Ho Yang, Antony R. Martin
  • Patent number: 10230651
    Abstract: Systems and methods of performing intra-frame refresh in multimedia communications over lossy packet networks, in which a video receiver can provide packet loss feedback information to a video transmitter, and the video transmitter can respond to the feedback information, in a manner that makes efficient use of available bandwidth. By providing one or more PLI messages from the video receiver to the video transmitter based on criteria related to the detection of an eventual missing video packet and/or the determination that the quality of a current reference frame is bad, and by pausing the providing of GNACK messages from the video receiver to the video transmitter while the PLI messages are being provided to the video transmitter, the total number of video packets required for transmission/retransmission can be reduced, thereby limiting the impact of the transmitted/retransmitted video packets on the available bandwidth while enhancing the video QoE of system users.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: March 12, 2019
    Assignee: DIALOGIC CORPORATION
    Inventor: Kyeong Ho Yang
  • Patent number: 10148598
    Abstract: Systems and methods of handling packet errors associated with multimedia data received at data receivers from data senders, in which packet error feedback information is provided by the data receivers to the data senders in one or more real-time transport control protocol (RTCP) feedback packets. The data receivers can calculate, determine, or otherwise obtain costs associated with providing specific forms of packet error feedback information in the RTCP feedback packets, and further calculate, determine, or otherwise obtain wait times for handling out-of-order packets, as well as receiving retransmissions of lost packets. By handling packet errors associated with multimedia data while taking into account such costs and wait times, each of which can have an impact on system bandwidth and/or latency, the systems and methods can more reliably achieve the quality of experience (QoE) generally desired and/or required for multimedia data transmissions.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: December 4, 2018
    Assignee: Dialogic Corporation
    Inventors: Kyeong Ho Yang, Myo Tun
  • Patent number: 10110930
    Abstract: Improved systems and methods of video decoding and recording in real-time video communications for use in lossy network environments. The disclosed systems and methods can employ a plurality of wait time thresholds for retransmission of missing video packets, based at least on the processing performed on the respective video packets, such processing including video decoding in a real-time video communication between client devices, and video recording and storing in a video file. The disclosed system and methods can also adaptively perform error concealment on video frames in the bitstream domain prior to recording and storing encoded video frame data in a video file, based at least on estimates of the complexities of the respective video frames.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: October 23, 2018
    Assignee: Dialogic Corporation
    Inventors: Kyeong Ho Yang, Yisheng Zhao
  • Patent number: 10021402
    Abstract: Systems and methods of media servers for estimating the video quality of experience (QoE) of human viewers of video content or communications at video receivers. With these systems and methods, a media server can collect, within a plurality of predetermined time windows synchronized in time, operational parameters of ingress and egress networks over which such video content or communications can be transmitted, as well as coding parameters of a video decoder and a video encoder within the media server. Having collected the operational parameters of the ingress network and egress network and the coding parameters of the video decoder and video encoder, the media server can determine QoE scores associated with some or all the ingress network, the video decoder, the video encoder, and the egress network, and estimate a resulting video QoE for a human viewer at a video receiver as a predefined combination of the respective QoE scores.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: July 10, 2018
    Assignee: Dialogic Corporation
    Inventors: Kyeong Ho Yang, Beril Erkin, Yisheng Zhao
  • Patent number: 9965771
    Abstract: Systems and methods of tracking multimedia content transmitted over at least one network to one or more mobile devices that may be employed to verify delivery of the multimedia content to the respective mobile devices, and to determine the perceptual quality (also referred to herein as “quality of experience” or “QoE”) of the multimedia content at the respective mobile devices. The systems and methods employ content identification techniques in conjunction with objective quality measures to allow mapping of the quality of experience or QoE to specific multimedia content, which may include audio content, imagery content, textual content, and/or video content.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: May 8, 2018
    Assignee: DIALOGIC CORPORATION
    Inventors: Jeffrey A. Bloom, Joseph P. Mele
  • Patent number: 9883214
    Abstract: Improved systems and methods of performing multimedia communications over multimedia communications networks, in which video data senders can maintain high video quality of experience (QoE) levels with increased reliability despite changes in available bandwidths of video data receivers. In the disclosed systems and methods, video encoding parameters employed by the video data senders, including at least the video frame size and/or the video frame rate, can be dynamically adapted to the available bandwidths of the video data receivers, taking into account possible effects of spatial scaling and/or temporal scaling of video frames on the resulting video QoE.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: January 30, 2018
    Assignee: DIALOGIC CORPORATION
    Inventors: Kyeong Ho Yang, Beril Erkin, Antony R. Martin
  • Patent number: 9875260
    Abstract: Systems and methods of provisioning data storage and runtime configuration in telecommunications systems and devices. The systems and methods employ at least one decentralized revision control system as a data repository for storing data, such as configuration data, and at least one data provisioning component as an interface for accessing the configuration data stored in the data repository. By employing the decentralized revision control system in conjunction with the data provisioning component, the systems and methods can provide a data storage and runtime configuration provisioning framework that is data agnostic, application agnostic, and user agnostic, while further providing at least the capability of tracking and maintaining the version history of the configuration data.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: January 23, 2018
    Assignee: Dialogic Corporation
    Inventors: Romolo Raffo, Kamlakar N. Patil, Thien Nguyen
  • Patent number: 9871946
    Abstract: Forward error correction is implemented in a facsimile transmission using adaptive redundancy. The depth of redundancy can change based on a number of factors, including lost packet counts, transport type, facsimile modulation type, call history or facsimile engine state changes. Separate redundancy depths can be implemented for image and for control phases of the facsimile call. Redundancy depth can be increased or decreased during a facsimile call, and may be maintained at an increased level once encountered transmission impediments are overcome. Variable redundancy can be provided for specific portions of the call, such as temporarily increased redundancy during control phases. Adaptive redundancy may be implemented at one or more endpoints or nodes in a packet-switched communication network through which the facsimile call passes. The adaptive redundancy contributes to improving successful facsimile call completion in communication networks that may be prone to error losses.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: January 16, 2018
    Assignee: Dialogic Corporation
    Inventors: Allan Ashmore, Michael J. Rus
  • Patent number: 9756356
    Abstract: Systems and methods that employ an application-assisted approach to adaptive spatio-temporal error concealment in video decoders. The systems and methods employ a video receiver that can receive real-time video frames from a video transmitter over a wired and/or wireless network. The video receiver includes an end system configurable as an application for consuming the content of the real-time video frames. The end system application can determine whether each received real-time video frame is complete or incomplete, whether each received slice is complete or incomplete, and provide such information to the video decoder for use in avoiding errors while decoding the respective real-time video frames.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: September 5, 2017
    Assignee: Dialogic Corporation
    Inventors: Kyeong Ho Yang, Myo Tun, Ashwini Kumar
  • Patent number: 9706134
    Abstract: Systems and methods of recording real-time video transactions between computerized user devices that make more efficient use of the systems' computing resources. Such systems and methods can record real-time video transactions between computerized user devices (e.g., customer client devices, customer service agent devices) by exploiting similarities between (1) video frame data generated by the respective computerized user devices, and (2) video frame data composed by the systems that record the real-time video transactions, without substantially degrading the video quality of the recorded real-time video transactions.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: July 11, 2017
    Assignee: Dialogic Corporation
    Inventors: Kyeong Ho Yang, Jon Robert Montana
  • Patent number: 9692615
    Abstract: A facsimile transmission device implements silence suppression based on a state of a facsimile call and detected facsimile signals. A decision process implemented in the facsimile device can determine when silence suppression should be enabled. The facsimile device may be an IP media gateway connected between a PSTN and an IP network, or may be an IP endpoint. The determination of when to enable silence suppression can be based on the state of sending or receiving facsimile transmissions including facsimile operations and/or signaling. The decisions can be based on the type of facsimile transmission including G3 type or SG3 type facsimile transmissions. By enabling silence suppression during facsimile transmissions, significant reductions in bandwidth requirements can be achieved for the facsimile transmission while maintaining facsimile transmission quality.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: June 27, 2017
    Assignee: Dialogic Corporation
    Inventors: Maciej Wasiel, David M. Lash
  • Patent number: 9654405
    Abstract: Systems and methods of performing intra-frame refresh in multimedia communications over lossy packet networks, in which a video receiver can provide packet loss feedback information to a video transmitter, and the video transmitter can respond to the feedback information, in a manner that makes efficient use of available bandwidth. By providing one or more PLI messages from the video receiver to the video transmitter based on criteria related to the detection of an eventual missing video packet and/or the determination that the quality of a current reference frame is bad, and by pausing the providing of GNACK messages from the video receiver to the video transmitter while the PLI messages are being provided to the video transmitter, the total number of video packets required for transmission/retransmission can be reduced, thereby limiting the impact of the transmitted/retransmitted video packets on the available bandwidth while enhancing the video QoE of system users.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: May 16, 2017
    Assignee: Dialogic Corporation
    Inventor: Kyeong Ho Yang
  • Patent number: 9646401
    Abstract: Systems and methods that provide a facility for a dynamic media overlay. An end user provides data for the dynamic media overlay that is activated upon selection to permit end users to share information while receiving or sending video data. The overlay may be a hyperlink that can be selected to take an action indicated by information provided in the hyperlink. The hyperlink may be represented by audio or image information in the form of instructions or clickable “targets.” A content of information represented by the hyperlink can be dynamic so that selection of the hyperlink can result in different actions, depending upon the informational content. One or more flags may be provided to indicate that a new hyperlink or new informational content for a hyperlink is requested. The hyperlink may be provided in an overlay represented as a media layer, or may be embedded in the video media itself.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: May 9, 2017
    Assignee: Dialogic Corporation
    Inventor: Mark A. Schneider
  • Patent number: 9628411
    Abstract: Systems and methods of handling packet errors associated with multimedia data received at data receivers from data senders, in which packet error feedback information is provided by the data receivers to the data senders in one or more real-time transport control protocol (RTCP) feedback packets. The data receivers can calculate, determine, or otherwise obtain costs associated with providing specific forms of packet error feedback information in the RTCP feedback packets, and further calculate, determine, or otherwise obtain wait times for handling out-of-order packets, as well as receiving retransmissions of lost packets. By handling packet errors associated with multimedia data while taking into account such costs and wait times, each of which can have an impact on system bandwidth and/or latency, the systems and methods can more reliably achieve the quality of experience (QoE) generally desired and/or required for multimedia data transmissions.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: April 18, 2017
    Assignee: Dialogic Corporation
    Inventors: Kyeong Ho Yang, Myo Tun
  • Patent number: 9609040
    Abstract: Systems and methods of dynamically adapting multimedia data transmit rates of data senders to available bandwidths of data receivers, in which the available bandwidths are estimated by the data senders using at least reception quality feedback information provided in real-time transport control protocol (RTCP) report packets. The data senders can obtain several bandwidth estimation parameters, such as a packet loss ratio and a round trip delay, from the reception quality feedback information, as well as multimedia data transmit rates from the data senders to the data receivers, and obtain estimates of the available bandwidths of the data receivers using at least the bandwidth estimation parameters and multimedia data transmit rates. Further, using the estimated available bandwidth, the data senders can dynamically adapt the multimedia data transmit rates to the available bandwidths for more reliably achieving the quality of experience (QoE) desired and/or required for multimedia data transmissions.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: March 28, 2017
    Assignee: Dialogic Corporation
    Inventors: Myo Tun, Kyeong Ho Yang
  • Patent number: 9609276
    Abstract: Systems and methods of video conferencing, in which existing video encoders associated with a multipoint control unit (MCU) can be shared among conference participant devices, depending upon the availability of processor and/or memory resources for the MCU. In making decisions regarding the sharing of video encoders, the systems and methods take into account various parameters associated with potential conference participant devices and the total cost of the processor/memory resources for the MCU, to determine whether a video encoder of the MCU can be shared with, or allocated to, the respective conference participant devices. By determining whether to share or allocate a video encoder of the MCU, depending upon the available processor/memory resources for the MCU, the MCU can be made to operate with increased stability. The systems and methods can be applied to any application that sends the same content to multiple receivers, including announcement and video streaming applications.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: March 28, 2017
    Assignee: Dialogic Corporation
    Inventors: Kyeong Ho Yang, Lawrence Kolakowski
  • Patent number: 9578342
    Abstract: Systems and methods of performing rate control in scalable video encoders that can be used to provide videoconferencing, announcements, and live video streaming to multiple participant devices having diverse bandwidths, resolutions, and/or other device characteristics. The systems and methods can accommodate different target bit rates of the multiple participant devices by operating on scalable video bitstreams in a multi-layer video format, including a base layer having one or more reference video frames, and an enhancement layer having one or more disposable non-reference, predictive video frames.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: February 21, 2017
    Assignee: Dialogic Corporation
    Inventors: Kyeong Ho Yang, Sangseok Park
  • Patent number: 9386501
    Abstract: A facility for customizable routing in a modularized routing environment is provided, where the complexities of routing functionality are not exposed to an application program. An identifier associated with a routing policy of an application program is used to configure a route table and to obtain routing instructions from the route table that are associated with the identifier. Routing is performed according to a message routing protocol, such as the Diameter protocol, for example. An interface between the facility and the application program may be implemented with an API that provides a relatively simple interface.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: July 5, 2016
    Assignee: Dialogic Corporation
    Inventor: Howard J. May