Alex Raj Phones & Addresses
-
Pittsfield, MA
-
59 Manufacturers St, Lowell, MA 01851 (978) 446-0505
-
Nashua, NH
-
52 Fifer Ln, Lexington, MA 02420 (978) 692-1539
-
16 Shipley Cir, Westford, MA 01886 (978) 446-0505 (978) 692-1539 (978) 692-1593
-
Burlington, MA
-
Somersworth, NH
-
North Chelmsford, MA
-
186 Cannongate Iii, Nashua, NH 03063 (978) 846-2062
Work
Position:
Professional/Technical
Education
Degree:
Graduate or professional degree
Business Records
Name / Title
Company / Classification
Phones & Addresses
Owner
Clean Energy Technologies
Computer Systems Design
Computer Systems Design
16 Shipley Cir, Graniteville, MA 01886
President, Principal
HANITA NETWORK, INC
Business Services at Non-Commercial Site
Business Services at Non-Commercial Site
16 Shipley Cir, Westford, MA 01886
Publications
Amazon
Real-time hand gesture recognition - sign language to voice conversion
View pageThe main aim of the project is to implement a real-time system that converts hand gestures from the American Sign Language(ASL) to voice signals. This could be used by the people with speaking disabilities to communicate with other people. For this purpose, surface Electromyogram(EMG) which is the m...
Author
Alex vijay raj Amalaraj, Xiaorong Zhang
Binding
Paperback
Pages
60
Publisher
LAP LAMBERT Academic Publishing
ISBN #
3659756717
EAN Code
9783659756719
ISBN #
4
Us Patents
Data Network Protocol Conformance Test System
View pageUS Patent:
6373822, Apr 16, 2002
Filed:
Jan 8, 1999
Appl. No.:
09/227554
Inventors:
Alex Raj - Lowell MA
John F. McGlauphlin - Hudson NH
David Snay - West Boylston MA
John F. McGlauphlin - Hudson NH
David Snay - West Boylston MA
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04L 1226
US Classification:
370252, 370241, 370250, 370253, 714724, 714736, 714738
Abstract:
A modular data network protocol conformance test system is designed to make distinct the key functionality that is required in protocol conformance testing such that the system can be reused across different platform testing, protocol testing, and network topology. As a result, in its current design, it can be used to test devices as distinct as cable modems, routers, and tag-switching routers. Consequently, the system has a packet generation module that generates send packets for transmission to the UUT (unit under test) and that analyzes the receive packets from the UUT. A separate network handling module transfers the send packets to and acquires the receive packets from the UUT. 13.
Apparatus And Methods Providing Redundant Routing In A Switched Network Device
View pageUS Patent:
6628649, Sep 30, 2003
Filed:
Oct 29, 1999
Appl. No.:
09/430653
Inventors:
Alex E. Raj - Westford MA
Rodolphe Figaro - Derry NH
Peter Kline - Toms River NJ
Jeremy Lawrence - Chippendale, AU
Rodolphe Figaro - Derry NH
Peter Kline - Toms River NJ
Jeremy Lawrence - Chippendale, AU
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04L 1256
US Classification:
370360, 3703951
Abstract:
The invention provides unique architectures and techniques for routing redundancy in a data switch configured to use label switching. Multiple label switch controllers (LSCs) each operate concurrently but independently of each other to provide routes through a data switching mechanism. Preferred embodiments provide a plurality of LSCs offering MPLS capabilities coupled to a single switch, such as an ATM switch. The similarly configured LSCs each can concurrently support a route for data (e. g. , labeled ATM cells) within the data switching mechanism in parallel, thereby providing the ability to support redundant and multiple parallel data networks. The configuration is called a label switch router (LSR). A fully-meshed embodiment allows selected routes to share bandwidth on ports, while a fully parallel embodiment provides separate ports for selected routes. Since each LSC provides parallel routes with the other LSCs in an LSR, a communications between an LSR and a label edge router (LER) can use multipath routing to concurrently distribute data equally across the parallel routes for each destination.
Method And Apparatus Using Multiprotocol Label Switching (Mpls) Label Distribution Protocol (Ldp) To Establish Label Switching Paths (Lsps) For Directed Forwarding
View pageUS Patent:
7609620, Oct 27, 2009
Filed:
Aug 15, 2005
Appl. No.:
11/203801
Inventors:
Alex E. Raj - Westford MA, US
Robert H. Thomas - Lexington MA, US
Prabhu Vaithilingam - Kanata, CA
Robert H. Thomas - Lexington MA, US
Prabhu Vaithilingam - Kanata, CA
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
G01R 31/08
G06F 11/00
H04L 12/28
H04L 12/56
G06F 11/00
H04L 12/28
H04L 12/56
US Classification:
370225, 370397, 3703953, 3703955
Abstract:
A method and apparatus method for providing fast rerouting in a network is presented. The method and apparatus assign a first local label for a prefix, and assign a second local label for the prefix. The first local label is advertised to an upstream peer and the second local label is advertised to a downstream peer. A forwarding entry from the first local label for a prefix is switched to the second local label for the prefix when a failure of a link or next hop is detected.
Method And Apparatus For Distributing Labels In A Label Distribution Protocol Multicast Network
View pageUS Patent:
7684350, Mar 23, 2010
Filed:
Mar 16, 2006
Appl. No.:
11/377807
Inventors:
Alex E. Raj - Westford MA, US
Eric C. Rosen - Arlington MA, US
Robert H. Thomas - Lexington MA, US
IJsbrand Wijnands - Leuven, BE
Eric C. Rosen - Arlington MA, US
Robert H. Thomas - Lexington MA, US
IJsbrand Wijnands - Leuven, BE
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04L 12/28
US Classification:
370254, 370401
Abstract:
A method of distributing labels in a label distribution protocol multicast network having a root node and at least one leaf node comprises the steps, performed at a receiving node, of receiving a label and path vector from a distributing node, carrying out loop or convergence detection from the received path vector and, if convergence or no loop is detected, sending a receiving node label and path vector to its nexthop node in the network.
Methods And Apparatus For Minimizing Duplicate Traffic During Point To Multipoint Tree Switching In A Network
View pageUS Patent:
7899049, Mar 1, 2011
Filed:
Aug 1, 2006
Appl. No.:
11/497952
Inventors:
Alex E. Raj - Westford MA, US
Robert H. Thomas - Lexington MA, US
Robert H. Thomas - Lexington MA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04L 12/28
H04L 12/56
H04J 3/26
H04L 12/56
H04J 3/26
US Classification:
370390, 370432
Abstract:
A method, apparatus and computer program product for minimizing or preventing duplicate traffic during point to multipoint tree switching in a network. In its operation, embodiments disclosed herein utilize control plane trigger mechanisms to handle the receipt of duplicate traffic by network entities after the occurrence of a network failure event. Generally, the control plane trigger mechanism prevents a network entity from processing multicast traffic from both old and new upstream data paths resulting from typical network convergence procedures. The methods and apparatus describe herein apply to standard rerouting procedures as well as fast rerouting procedures for multicast traffic in a network.
Technique For Breaking Loops In A Communications Network
View pageUS Patent:
7969898, Jun 28, 2011
Filed:
Mar 9, 2007
Appl. No.:
11/716055
Inventors:
Alex Raj - Westford MA, US
Robert H. Thomas - Lexington MA, US
Anna Charny - Sudbury MA, US
Prabhu Vaithilingam - Kanata, CA
Robert H. Thomas - Lexington MA, US
Anna Charny - Sudbury MA, US
Prabhu Vaithilingam - Kanata, CA
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04L 12/26
US Classification:
370248, 370242, 370249, 370250
Abstract:
A technique for breaking a loop caused by looping alternate paths associated with a prefix in a communications network. One or more non-looping alternate paths associated with the prefix that exclude a first node in the communications network are identified. One or more alternate paths from nodes in the loop that are associated with the prefix are identified. An identified path that intersects with an identified non-looping path is established as an alternate path associated with the prefix at a node in the loop.
Method And Apparatus For Forwarding Label Distribution Protocol Multicast Traffic During Fast Reroute
View pageUS Patent:
8004960, Aug 23, 2011
Filed:
Apr 28, 2006
Appl. No.:
11/413252
Inventors:
Alex E. Raj - Westford MA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
G01R 31/08
US Classification:
370216, 370408, 709221, 709239, 709242, 709252
Abstract:
A computer apparatus comprising a processor and a forwarding engine arranged to forward LDP multicast traffic along a multicast tree having a primary and a backup path in a converged network topology, the processor being configured to cause the forwarding engine to forward traffic via the backup path upon a topology change and send a changed topology label and path vector to at least one neighbor node in the changed topology.
Methods And Apparatus For Implementing Protection For Multicast Services
View pageUS Patent:
20070174483, Jul 26, 2007
Filed:
Jan 20, 2006
Appl. No.:
11/336457
Inventors:
Alex Raj - Westford MA, US
Robert Thomas - Lexington MA, US
Robert Thomas - Lexington MA, US
International Classification:
G06F 15/173
US Classification:
709238000
Abstract:
A router in a label-switching network sets up one or more backup paths to forward multicast data traffic in the event of a failure. Network failures include link failures and node failures. If a link failure occurs, a given router in a respective label-switching network can forward multicast data traffic on a first backup path to a next hop downstream router that it normally sends the multicast data traffic. If the next hop downstream router fails, the given router can circumvent sending the multicast data traffic to the next hop downstream router and instead send the multicast data traffic on respective backup paths to the set of routers (e.g., next next hop downstream routers) that the next hop downstream router (e.g., the failing router) normally would forward the multicast data traffic in the absence of the network failure.