Abstract: Vehicle safety system that ensures user of a vehicle performs a 360-degree walk around of the vehicle before it is moved from a resting location. Vehicle safety system includes plurality of input receivers positioned around the vehicle, and a pressure switch at the driver's seat of the vehicle, motion sensor, or the like to detect presence of an operator in the driver's seat of the vehicle. The user walks around the vehicle and activates the input receivers within a predetermined time period before sitting in the driver's seat. If user fails to activate input receivers, then the vehicle safety system generates an alert or alarm. This ensures the user completes a 360-degree walk around before sitting in the vehicle. If user activates the input receivers within the predetermined time period, then the vehicle safety system deactivates the alarm, allowing operator to sit in their seat without the alert being triggered.

Abstract: 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.

Abstract: A device includes a frame data analyzer that generates buffer increment data based on frame data sent from the media server to the media client and further based on acknowledgement data sent from the media client to the media server. A playback data generator generates playback data based on frame data buffer contents and further based on player state data. A frame buffer model generator generates a buffer fullness indicator and the frame data buffer contents, based on the buffer increment data and the playback data. A player state generator generates the player state data, based on the buffer fullness indicator and further based on media client data, media server data and player command data.

Abstract: Apparatus and methods for optimizing data transmission between two hosts via a network device. The network device initially allows a first connection to be established between the two host devices. This first connection is logically established directly between the host devices without modification by the network device. The network device analyzes data transmitted via the first connection and determines whether to allow the first connection to continue without intervention by the network device, or whether to split the connection into separate TCP connections with the network device as intermediary. The network device maintains connection state and emulates both host devices to allow the first connection to be split without disrupting the communication at either host device.

Abstract: 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.

Abstract: 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.

Abstract: In accordance with one or more embodiments, monitoring system is presented that includes a monitoring device that extracts packet data of a data distribution network. A video network analyzer processes the packet data of the data distribution network to identify a media session that includes streaming video; analyzes the streaming video to identify an attribute associated with the streaming video; generates media session data that indicates the attribute in the streaming video; and generates policy and charging server interface data for controlling distribution of the streaming video, based on the media session data. Other embodiments are disclosed.

Abstract: 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.

Abstract: 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.

Abstract: An apparatus comprising a plurality of flow model circuits, a categorizer circuit, and a plurality of link model circuits. Each of the flow model circuits may be configured to generate a respective flow measurement signal in response to data packets received from a plurality of links on a network. The categorizer circuit may be configured to present a plurality of link measurement signals, each in response to one or more of the plurality of flow measurement signals. Each of the link model circuits may be configured to generate a respective congestion estimation signal in response to (i) a respective one of a plurality of model parameter signals, (ii) a respective one of the plurality of link measurement signals, and (iii) a respective one of a plurality of score signals. Each of the congestion estimation signals may represent a congestion level of a respective one of the links.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A device includes a frame data analyzer that generates buffer increment data based on frame data sent from the media server to the media client and further based on acknowledgement data sent from the media client to the media server. A playback data generator generates playback data based on frame data buffer contents and further based on player state data. A frame buffer model generator generates a buffer fullness indicator and the frame data buffer contents, based on the buffer increment data and the playback data. A player state generator generates the player state data, based on the buffer fullness indicator and further based on media client data, media server data and player command data.