Patent application number | Description | Published |
20120117225 | METHODS AND APPARATUS FOR PROVIDING A MEDIA STREAM QUALITY SIGNAL - Systems, methods and apparatus are provided for computing quality scores for a media session delivered using an adaptive streaming protocol, where the quality score may be an estimate of a mean opinion score. The quality score reflects the impact of network delivery on a viewer's quality of experience (QoE). In particular, the quality score is generally based on the effects of stream switch events, as stream switches may be the result of impaired network delivery. Other network events, such as re-buffering events may also be incorporated in the score. | 05-10-2012 |
20130031575 | SYSTEM FOR MONITORING A VIDEO NETWORK AND METHODS FOR USE THEREWITH - A monitoring system includes a video network analyzer processes the packet data to generate network and media session data relating to the distribution of video content via the data distribution network in at least one media session, wherein the network and media session data includes at least one session metric, location data, protocol identification data, video encoding parameter data, and audio encoding parameter data. An analytics database stores the network and media session data for generation of report data. | 01-31-2013 |
20140082206 | METHOD AND APPARATUS FOR MEDIA SESSION IDENTIFICATION, TRACKING, AND ANALYSIS - In a networked system connecting a subscriber to a content source via one or more networks, a computer-implemented method includes instantiating a session model for a media session between the subscriber and the content source, the session model to generate session metadata from application-layer interactions between the subscriber and the content source. The method further includes instantiating an interaction model in response to detecting an application-layer interaction in a transport flow of the subscriber, the application-layer interaction comprising media data for the media session. The method also includes generating, at the interaction model, interaction metadata representative of the application-layer interaction, and processing at least one of the interaction metadata and the media data at the session model to generate session metadata responsive to matching the interaction model to the session model. | 03-20-2014 |
20150026309 | SYSTEMS AND METHODS FOR ADAPTIVE STREAMING CONTROL - Systems and methods for adaptive streaming control include a network, a network device, and a plurality of media clients served by the network. The network device monitors media session conditions for a media session with a media client served by the network and enforces policy on the media session based on the media session conditions. The network device can enforce policy by determining a current estimated media quality of the media session based on the monitored media session conditions, determining a target media quality for the media session, and modifying the media session responsive to a difference between the current estimated media quality and the target media quality exceeding a threshold. | 01-22-2015 |
20150052246 | SYSTEMS AND METHODS FOR MODELING QUALITY OF SERVICE FOR STREAMING MEDIA - A monitoring device includes a video buffer model and a user model. The video buffer model monitors a media program streaming across a network to a media client for perceivable transmission impairments. The user model reflects user dissatisfaction due to types of perceivable transmission impairments and timing, duration, and frequency of perceivable transmission impairments so as to estimate a quality of experience of the media program. The parametric model can include one or more parameterized functions, and a set of parameters used in at least one of the one or more of the parameterized functions at a point in time during the streaming of the media program can be based on a type of perceivable transmission impairment associated with the point in time. | 02-19-2015 |
Patent application number | Description | Published |
20130041998 | DELIVERY QUALITY OF EXPERIENCE (QoE) IN A COMPUTER NETWORK - An apparatus generally having an interface and a circuit is disclosed. The interface may be connectable to a network to monitor a media program streaming across the network to a media client. The circuit may be configured to (i) generate first information by modeling a buffer of the media client, the first information being representative of a plurality of events related to the buffer during a playback of the media program and (ii) generate a signal representative of a quality of experience of the media program in response to the first information. | 02-14-2013 |
20130304934 | METHODS AND SYSTEMS FOR CONTROLLING QUALITY OF A MEDIA SESSION - Methods and systems for controlling quality of a media stream in a media session. The described methods and system control the quality of the media stream by controlling transcoding of the media session. The transcoding is controlled at the commencement of the media session and dynamically during the life of the media session. The transcoding is controlled by selecting a target quality of experience (QoE) for the media session, computing a predicted QoE for each of a plurality of control points, where each control point has a plurality of transcoding parameters associated therewith, selecting an control point of the plurality of control points, wherein the predicted QoE for the selected control point substantially corresponds with the target QoE and signaling the transcoder to use the selected control point for the media session. | 11-14-2013 |
20130318253 | METHODS AND APPARATUS FOR PROVIDING A PRESENTATION QUALITY SIGNAL - Apparatus, methods and systems using no-reference techniques for computing quality scores for audio and video components of a media session, where the quality scores are estimates of perceived quality by the viewer for the individual components of the media session. A presentation quality score is computed for a media stream by parsing a container of the media stream to determine media stream characteristics, estimating an visual quality factor and based on the visual quality factor, determining the presentation quality score. | 11-28-2013 |