Virgil M Vladescu from Englewood, NJ, age 64

Us Patents

Ip Multi-Cast Video Ring Distribution And Protection
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US Patent:

7876753, Jan 25, 2011
Filed:

Dec 12, 2006
Appl. No.:

11/637037
Inventors:

David Solomon - River Vale NJ, US
Stephen J. Brolin - Livingston NJ, US
Virgil Vladescu - Hillsdale NJ, US
Assignee:

Fujitsu Limited - Kawasaki
International Classification:

H04L 12/46
US Classification:

370390, 370406
Abstract:

An IP Video distribution and protection system provides lower cost by using a reduced number of expensive IP multi-cast router high-speed ports. A multi-cast data source comprises at least one multi-cast router and a multi-cast server. The data source is coupled to a plurality of multi-cast data destinations via a data distribution network comprising a first and a second ring. The data destinations are communicatively linked together in the first ring for data flow in one direction. The second ring network communicatively connects the data source to the last data destination in the first ring for data flow in a different direction though the destinations. Each destination includes switching elements enabling the destinations to provide data in either direction to end users linked to the respective data destinations.

Onu Delay And Jitter Measurement
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US Patent:

8289858, Oct 16, 2012
Filed:

Dec 12, 2006
Appl. No.:

11/637023
Inventors:

Stephen J. Brolin - Livingston NJ, US
Virgil Vladescu - Hillsdale NJ, US
Assignee:

Fujitsu Limited - Kawasaki
International Classification:

G01R 31/08
US Classification:

370249, 370250, 370252, 370392, 398208, 398 16
Abstract:

A system and method provide measurement of round trip delay and jitter in an optical network without adding cost to the components of the network. A method of determining round-trip delay and jitter in an optical network comprises the steps of a) transmitting a test frame over the optical network to a device on the optical network, b) receiving a looped-back test frame from the device over the optical network, and c) determining a round-trip delay measurement using the received looped-back test frame.

Providing Ring Protection For Access Networks
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US Patent:

8301804, Oct 30, 2012
Filed:

Jun 9, 2009
Appl. No.:

12/480875
Inventors:

Virgil M. Vladescu - Hillsdale NJ, US
Stephen J. Brolin - Livingston NJ, US
Assignee:

Fujitsu Limited - Kawasaki
International Classification:

G06F 15/16
US Classification:

709249
Abstract:

According to one embodiment, an apparatus comprises one or more hub interfaces and one or more processors. A hub interface is coupled to an access network element of a ring network comprising a number of access network elements. The ring network comprises a pair of rings: a first ring traveling in a first direction and a second ring traveling in a second direction. The processors perform the following for each access network element: facilitate establishing a pair of point-to-point logical connections to couple a access network element to a hub interface at a corresponding dedicated bandwidth, a first connection traveling along the first ring, a second connection traveling along the second ring; facilitate establishing a pair of tunnels on the pair of point-to-point connections; and utilize the tunnels to protect the ring network.

Systems And Methods For Transmission Of Alarm Indication Suppression Messages In Connection With Failure Of Network Element Equipment
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US Patent:

8416679, Apr 9, 2013
Filed:

May 11, 2010
Appl. No.:

12/777660
Inventors:

Stephen John Unger - Allen TX, US
David Joseph Haas - Mahwah NJ, US
Virgil Vladescu - Hillsdale NJ, US
Nimer Yaseen - Allen TX, US
Assignee:

Fujitsu Limited - Kawasaki-shi
International Classification:

G01R 31/08
US Classification:

370216
Abstract:

According to one embodiment, a method may include detecting an occurrence of a fault for a component of a network element having a maintenance entity provisioned thereon. The method may further include transmitting alarm indication suppression messages to components for which the maintenance entity was configured to transmit alarm indication suppression messages in response to detecting the occurrence of the fault.

Systems And Methods For Transmission Of Trigger-Based Alarm Indication Suppression Messages
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US Patent:

8630186, Jan 14, 2014
Filed:

May 17, 2010
Appl. No.:

12/781096
Inventors:

Stephen John Unger - Allen TX, US
David Joseph Haas - Mahwah NJ, US
Virgil Vladescu - Hillsdale NJ, US
Nimer Yaseen - Allen TX, US
Basavaraj Menasinahal - Montvale NJ, US
Calvin Wan - Plano TX, US
Assignee:

Fujitsu Limited - Kawasaki-shi
International Classification:

H04J 1/16
H04L 12/28
US Classification:

370241, 370252, 370216, 370278, 370419
Abstract:

According to one embodiment, a method may include communicating an alarm suppression indication trigger message from a maintenance end point to an alarm indication suppression generator. The method may further include communicating, by the alarm indication suppression generator in response to receiving the alarm indication trigger message, an alarm indication suppression message to at least one flow point that has alarm indication suppression enabled for the maintenance end point such that the alarm indication suppression message is received by at least one other maintenance end point upstream of the maintenance end point.

Fault Signaling For Ethernet
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US Patent:

20130128750, May 23, 2013
Filed:

Nov 23, 2011
Appl. No.:

13/303689
Inventors:

Roman Krzanowski - White Plains NY, US
Michael U. Bencheck - Richardson TX, US
Vincent Anthony Alesi - Yorktown Heights NY, US
Virgil M. Vladescu - Hillsdale NJ, US
Richard L. Wheeler - Flemington NJ, US
Assignee:

VERIZON PATENT AND LICENSING INC. - Basking Ridge NJ
International Classification:

H04L 12/26
US Classification:

3702411
Abstract:

A method may include receiving a message from a first Ethernet interface in a second Ethernet interface, wherein the message includes a first attribute indicative of an Ethernet service at the first interface according to a first operation, administration, or management (OAM) protocol. The method may further include mapping the first attribute to a second attribute, wherein the second attribute is in accordance with a second OAM protocol different than the first OAM protocol. The method may further include performing an operation at the second interface based on the second attribute.

Atm Multicasting System And Method
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US Patent:

6760332, Jul 6, 2004
Filed:

Jun 3, 1999
Appl. No.:

09/325470
Inventors:

Virgil Vladescu - Hillsdale NJ
Art Garcia - Tappan NY
Frank Schumeg - Ogdensburg NJ
Vijay Malik - Scotch Plains NJ
Assignee:

Fujitsu Network Communications, Inc. - Richardson TX
International Classification:

H04L 1256
US Classification:

3703951, 370389
Abstract:

In an ATM communications system, a cell entering a switch fabric input port is routed to its destination output port and to a predetermined dedicated second output port. The second output port is connected by a feedback connection to a predetermined dedicated second input port. The cell can then be either switched to the same destination output port or switched to both the same destination output port and the predetermined dedicated second output port, thereby providing the ability to execute a logical multicast with any number of leaves to the destination output port.

Path Routing With Delay Constraints
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US Patent:

20220385567, Dec 1, 2022
Filed:

May 30, 2021
Appl. No.:

17/334759
Inventors:

- Kawasaki-shi, JP
Virgil VLADESCU - Hillsdale NJ, US
Paparao PALACHARLA - Richardson TX, US
Assignee:

FUJITSU LIMITED - Kawasaki-shi
International Classification:

H04L 12/721
H04L 12/707
H04L 12/751
H04L 12/725
Abstract:

An example method may include obtaining network information of a network and determining a second path from a first node of multiple nodes to a second node of the multiple nodes. The network information may include a network topology that may include the multiple nodes and multiple links connecting the multiple nodes. The multiple links may include a first routing metric and a second routing metric. The network information may also include multiple first paths from each node of the multiple nodes to all other nodes of the multiple nodes along the multiple links. The multiple first paths may be determined based on the first routing metric. The determining the second path may include selecting path segments for the second path along the multiple links based on the path segments being included in the multiple first paths based on the second routing metric of the multiple links included in the path segments.