Empirix Inc.

Linkedrive, Inc.

Tibor F Ivanyi

Sergey L Eidelman

Anne-Marie Turgeon

Anuj Nath

David Hsing-Wang Wong

Mark Figura

Michael V Socaciu

John David Doyle

Peter Savage

Jeffrey C Baer

Laslo Turner

William D Alexander

Monica Chandnani

Chad M Kosterman

Eduardo Joo

Jason Neri

A method for performing driver performance comparisons is enabled, e.g., via in-vehicle capture of performance data from multiple vehicles or drivers. The performance comparisons are enabled via a geohash-based path analysis.

Driver performance measurement and monitoring with path analysis

Aspects of the invention may involve systems and methods. In an embodiment, a method to determine wireless network coverage and responsiveness may be described. The method may include wirelessly transmitting test data to determine wireless connectivity and transmission quality; determining a quality of the wireless transmission of the test data; determining a location of the wireless device during the wireless transmission of the test data; updating a log with the location of the wireless device, a time of day of the wireless transmission, and the quality of the wireless transmission; and transmitting the log to a central server.

Method and apparatus to determine a wireless network coverage and responsiveness

A method of modeling user behavior in an IP network, comprising the steps of allowing a testing user to create a behavior profile specifying one or more user activities from a plurality of user activities performed by a user over the IP network, one or more bandwidth usage levels corresponding to the one or more user activities, and an importance level associated with each user activity; associating one or more applications from a plurality of applications with the one or more user activities; emulating the behavior profile over the IP network by performing the one or more user activities using the one or more applications; and measuring a quality of experience (QoE) score for each user activity from the one or more user activities.

Method for modeling user behavior in IP networks

Embodiments are directed to systems and methods for network monitoring and testing using self-adaptive Key Performance Indicator to establish thresholds to trigger alarms in network monitoring. The present embodiments will be described in the context of calculating KPIs for call detail records (CDRs) and using the KPIs for network monitoring.

Systems and methods for network monitoring and testing using self-adaptive triggers based on KPI values

Embodiments are directed to systems and methods for network monitoring and testing using dimension-value based KPIs that are configured and calculated from a stream of homogenous or heterogeneous data events. The embodiments describe flexible and abstract ways of specifying configurations for the calculation of the KPIs from the stream of network events. Embodiments are described in the context of calculating KPIs for call detail records (CDRs) for computer telephony events.

Systems and methods for network monitoring and testing using dimension value based KPIs

Embodiments are directed to systems and methods for network monitoring and testing using intelligent sequencing of data events so as to generalize the sequencing of events from multiple disparate sources of network events with multiple disparate types of events.

Systems and methods for network monitoring and testing using intelligent sequencing

Embodiments are directed to systems and methods for network monitoring and testing using a generic data mediation platform between one or more probes and one or more dashboards. The generic data mediation platform performs data correlation, filtering enrichment and aggregation of events obtained from monitored networks.

Systems and methods for network monitoring and testing using a generic data mediation platform

A method for synchronizing different components of a computer network system using meta-commands embedded in normal network packets. The data communication channel between different components of a computer network system can be used to transport meta-commands piggybacked in normal network packets, without modifying or compromising the validity of the protocol message. Embodiments of the method can be used for embedding test synchronization and control commands into the network packets sent through a device or system under test. The device or system under test can be an edge device, with the data communication channel carrying normal packets containing meta-commands embedded in the packets to synchronize the test control of the test clients and the test servers connected to the edge device.

Method for embedding meta-commands in normal network packets

An embodiment of the present invention provides a method for establishing Quality of Experience (QoE) measurements and metrics for different types of actual user activities over IP networks. These activities include, but are not limited to web browsing, sending and receiving email, file downloading and uploading, peer to peer (P2P) networking, VoIP, online gaming, and media streaming. The measurement of the QoE metrics is based on both objective and subjective metrics, including network characteristics, such as packet loss and latency, along with empirical observations of the user activities.

Method for determining a quality of user experience while performing activities in IP networks

Methods and apparatus provide for a finite state machine environment to receive at least one event. The finite state machine environment converts the event to a finite state machine event. The finite state machine environment selects a first event processing table from a plurality of interoperable event processing tables. The finite state machine environment processes the finite state machine event in the first event processing table to determine an action to perform based on a state of the finite state machine embodied by the first event processing table and a type of the event.

Table driven event processing of multiple stateful protocols in a high performance network stack framework

Methods and apparatus provide for receiving a request for memory from a network stack subsystem running in user mode. The request is received at a listing of pointers that resides within the network stack but separate from kernel memory. Each available pointer in the listing of pointers references a particular free kernel memory location. In response to the request, the listing of pointers provides the network stack subsystem with at least one pointer to a free kernel memory location. Via the pointer, the network stack subsystem that received the pointer to the free kernel memory location directly writes at least one segment of a packet to the free kernel memory location.

System and method for enabling network stack processes in user mode and kernel mode to access kernel memory locations

A system and method for testing signals in digital-network packets includes generation of reference clips and associated reference key values and comparison of the reference key values with current key values associated with incoming current-digital-network packets under test In this way the incoming current-digital-network packets can be tested for either a correct audio and/or video signal or a signal with sufficiently high signal integrity to allow it to be understood by a user at a destination point.

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Pelham, NH, United States of America

Tibor F Ivanyi