Tibor F Ivanyi

7937449, May 3, 2011

Oct 7, 2008

12/246742

Anuj Nath - Stoneham MA, US
Tibor F. Ivanyi - Pelham NH, US
William D. Alexander - Arlington MA, US

Empirix, Inc. - Bedford MA

G06F 12/00

709213, 726 15, 711 1, 711100

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.

8463925, Jun 11, 2013

Oct 8, 2008

12/247682

Anuj Nath - Stoneham MA, US
Tibor F. Ivanyi - Pelham NH, US
David Hsing-Wang Wong - Billerica MA, US

Empirix Inc. - Billerica MA

G06F 15/16

709230, 709238

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.

20050163052, Jul 28, 2005

Jan 28, 2004

10/766293

Peter Savage - Mont Vernon NH, US
John Doyle - Hollis NH, US
Monica Chandnani - Stoneham MA, US
David Wong - Boston MA, US
Tibor Ivanyi - Pelham NH, US
Eduardo Joo - Boston MA, US
Jason Neri - Acton MA, US

H04L012/26

370241000, 370469000

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.

20100268524, Oct 21, 2010

Apr 16, 2010

12/762264

Anuj Nath - Stoneham MA, US
David Hsing-Wang Wong - Billerica MA, US
Sergey Eidelman - Bolton MA, US
Anne-Marie Turgeon - Wakefield MA, US
Tibor Ivanyi - Pelham NH, US

EMPIRIX INC. - Bedford MA

G06F 15/173
G06F 9/455

703 23, 709224

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.

20100268834, Oct 21, 2010

Apr 16, 2010

12/762270

Sergey Eidelman - Bolton MA, US
Anne-Marie Turgeon - Wakefield MA, US
Tibor Ivanyi - Pelham NH, US
David Hsing-Wang Wong - Billerica MA, US
Anuj Nath - Stoneham MA, US

EMPIRIX INC. - Bedford MA

G06F 15/16

709230

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.

20100269044, Oct 21, 2010

Apr 16, 2010

12/762240

Tibor Ivanyi - Pelham NH, US
Anuj Nath - Stoneham MA, US
David Hsing-Wang Wong - Billerica MA, US
Sergey Eidelman - Bolton MA, US
Anne-Marie Turgeon - Wakefield MA, US

EMPIRIX INC. - Bedford MA

G06F 15/173
G06F 3/048
G06F 15/16

715736, 709224

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.

20120259993, Oct 11, 2012

Jun 21, 2012

13/529789

Sergey Eidelman - Bolton MA, US
Anne-Marie Turgeon - Wakefield MA, US
Tibor Ivanyi - Pelham NH, US
David Hsing-Wang Wong - Billerica MA, US
Anuj Nath - Stoneham MA, US

EMPIRIX, INC. - Bedford MA

G06F 15/16

709230

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.

20130182577, Jul 18, 2013

Jul 20, 2012

13/554924

Tibor Ivanyi - Pelham NH, US
Anne-Marie Turgeon - Wakefield MA, US
Sergey Eidelman - Bolton MA, US
Mark Figura - Methuen MA, US

H04L 12/26

370241

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.