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Kadangode D Ramakrishnan

age ~68

from Riverside, CA

Also known as:
  • Kadangode Dr Ramakrishnan
  • Kadangode Ramakrishnan
  • Kk Ramakrishnan
  • Kadangode Ramakrishna
  • K Ramakrishnan
  • Kadangode Ramakrishn
  • Ramakrishnan Dr Kadangode
  • Ramakrishnan Kadangode
  • Ramakrishnan Kk

Kadangode Ramakrishnan Phones & Addresses

  • Riverside, CA
  • Jersey City, NJ
  • 9 Highland Cir, Berkeley Hts, NJ 07922 • 9085089252
  • Berkeley Heights, NJ
  • Gillette, NJ
  • Maynard, MA

Us Patents

  • System And Method For Multipoint-To-Multipoint Multicasting

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  • US Patent:
    6353596, Mar 5, 2002
  • Filed:
    Apr 12, 1996
  • Appl. No.:
    08/631869
  • Inventors:
    Matthias Grossglauser - Balsthal,
    Kadangode K. Ramakrishnan - Berkeley Heights NJ
  • Assignee:
    Lucent Technologies Inc. - Murray Hill NJ
  • International Classification:
    H04L 1256
  • US Classification:
    370256, 370390, 370409
  • Abstract:
    A system and method are provided for a scalable and efficient multipoint-to-multipoint multicast in packet and sub-packet based communications networks. The methodology of the invention incorporates an additional switching feature called cut-through forwarding, which enables the mapping of several incoming virtual channels into one or several outgoing virtual channels. The inventive methodology further provides a shared tree spanning all senders and receivers of the multicast group. Centrally initiated group setup as well as dynamic group membership changes are incorporated into the invention. An additional feature of the invention, designated “short-cutting”, allows for the transmission of a packet to follow the shortest path along the shared tree. A methodology is also provided for achieving interoperability among switching nodes in a network which are capable of fully implementing the multipoint-to-multipoint multicast method of the invention and other switching nodes which lack that capability.
  • Methods And Apparatus To Route Control Packets Based On Address Partitioning

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  • US Patent:
    20110286457, Nov 24, 2011
  • Filed:
    May 24, 2010
  • Appl. No.:
    12/786162
  • Inventors:
    Cheng Tien Ee - Rockaway NJ,
    Lee M. Breslau - Basking Ridge NJ,
    Kadangode K. Ramakrishnan - Berkeley Heights NJ,
  • International Classification:
    H04L 12/56
  • US Classification:
    370392, 370401
  • Abstract:
    Methods and apparatus to route control packets based on address partitioning. A disclosed example method includes receiving a packet in a server, determining the packet is a control packet, forwarding the packet to a processor, identifying via the processor an address prefix of the packet, accessing a forwarding table and determining via the processor at least one of a router or an outgoing interface that corresponds to the identified address prefix, transmitting the packet from the processor to the server via the outgoing interface, and statically forwarding the packet from the server to the router based on an interface that received the packet from the processor.
  • Traffic Shaping System With Transmit Latency Feedback For Asynchronous Transfer Mode Networks

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  • US Patent:
    55153631, May 7, 1996
  • Filed:
    Jun 30, 1994
  • Appl. No.:
    8/268605
  • Inventors:
    Michael Ben-Nun - Jerusalem,
    Simoni Ben-Michael - Givat Zeev,
    Moshe De-Leon - Jerusalem,
    G. Paul Koning - Wilton NH
    Kadangode K. Ramakrishnan - Maynard MA
    Peter J. Roman - Hopkinton MA
  • Assignee:
    Digital Equipment Corporation - Maynard MA
  • International Classification:
    H04L 1254
  • US Classification:
    370 17
  • Abstract:
    A system for controlling the transmission of cells from a network node over multiple Virtual Circuits (VCs) is disclosed. The system performs traffic shaping, as required by connection based systems such as Asynchronous Transfer Mode (ATM), for each VC connected with a network node, so that the Quality of Service (Qos) parameters established when the connection was established are not exceeded. The system includes a process for scheduling the transmission of cells from the network node. The scheduling process periodically scans a table having entries corresponding to virtual circuits connected with the network node. During each scan of the table, the scheduler increments a sustainable rate accumulator field, a peak rate accumulator field, and a latency accumulator field of each table entry that corresponds with a virtual circuit that is open, and for which there is a cell ready to be transmitted. The scheduler further determines if the sustainable rate accumulator value is greater than or equal to a predetermined value and whether the peak rate accumulator value is greater than or equal to a predetermined value. If both conditions are true, then a cell may be transmitted on the virtual circuit corresponding with that table entry.
  • Architecture For Lightweight Signaling In Atm Networks

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  • US Patent:
    61283053, Oct 3, 2000
  • Filed:
    Jan 29, 1998
  • Appl. No.:
    9/015496
  • Inventors:
    Gisli Hjalmtysson - Gillette NJ
    Kadangode K. Ramakrishnan - Berkeley Heights NJ
  • Assignee:
    AT&T Corp. - New York NY
  • International Classification:
    H04L 1228
    H04L 1256
  • US Classification:
    370410
  • Abstract:
    A method and system provide for a network using lightweight signaling for establishing connections. The method and system establish a best efforts connection between at least two terminals, on a hop-by-hop basis. Data can flow before and quality of service is established. The system enhances processing time for quality of service requirements and provides flexibility in establishing multicast connections.
  • Pipelined Data Replication For Disaster Recovery

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  • US Patent:
    20140040206, Feb 6, 2014
  • Filed:
    Aug 2, 2012
  • Appl. No.:
    13/565494
  • Inventors:
    Kadangode K. Ramakrishnan - Berkeley Heights NJ,
    Horacio Andres Lagar-Cavilla - Toronto,
    Prashant Shenoy - Northampton MA,
    Jacobus Van der Merwe - New Providence NJ,
    Timothy Wood - Columbia MD,
  • International Classification:
    G06F 7/00
    G06F 17/30
  • US Classification:
    707640, 707674, 707E17005, 707E17032
  • Abstract:
    Pipelined data replication for disaster recovery is disclosed. An example pipelined data replication method for disaster recovery disclosed herein comprises sending replicated first data from a primary processing environment to a secondary processing environment for backup by the secondary processing environment, the replicated first data being a replica of first data in the primary processing environment, processing the first data in the primary processing environment prior to the backup of the replicated first data by the secondary processing environment being confirmed, and preventing a result of the processing of the first data from being released by the primary processing environment until the backup of the replicated first data by the secondary processing environment is confirmed.
  • Method And Apparatus For Coordinating A Change In Service Provider Between A Client And A Server With Identity Based Service Access Management

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  • US Patent:
    20130139232, May 30, 2013
  • Filed:
    Jan 24, 2013
  • Appl. No.:
    13/748947
  • Inventors:
    John W. Garrett - Windermere FL,
    Charles Robert Kalmanek - Short HIlls NJ,
    Han Q. Nguyen - Marlboro NJ,
    Kadangode K. Ramakrishnan - Berkeley Heights NJ,
  • Assignee:
    AT&T INTELLECTUAL PROPERTY II, L.P. - Atlanta GA
  • International Classification:
    H04L 29/06
  • US Classification:
    726 6
  • Abstract:
    A method of configuring a network access device connected to an access network connected to a plurality of service networks, the network device having a first network address allocated to a subscriber of services of a first service provider provided by a first service network, with a new network address allocated to a second subscriber of services of either the first service provider, or a second service provider provided by a second service network. The method comprises the steps of: sending a request from the network access device to the access network with user credentials for the second subscriber requesting access to the first service provider or a change to the second service provider; receiving a response from the access network; and initiating a network address change request using a configuration protocol. In this manner, a second network address allocated to the second subscriber of services of either the first or second service providers is assigned to the network access device to enable the network access device to communicate data packets to the service network providing the selected service.
  • Methods And Apparatus To Distribute Network Ip Traffic

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  • US Patent:
    20130107884, May 2, 2013
  • Filed:
    Nov 30, 2012
  • Appl. No.:
    13/691167
  • Inventors:
    Lee Breslau - Basking Ridge NJ,
    Kadangode K. Ramakrishnan - Berkeley Heights NJ,
  • Assignee:
    AT&T INTELLECTUAL PROPERTY I, L.P. - Atlanta GA
  • International Classification:
    H04L 12/56
  • US Classification:
    370392
  • Abstract:
    Example methods disclosed herein include, in response to receiving, at a server, a first control packet from a first router, selecting a first auxiliary router to forward the first control packet, and updating a forwarding table in the first router to associate a destination address of the first control packet with a first control path from the first router to the first auxiliary router, the forwarding table initially causing the first control packet to be routed from the physical router to the server, the first control path being determined by routing the first control packet from the first router to the first auxiliary router through the server, the updating of the forwarding table to cause subsequent data packets associated with the first control packet to be forwarded from the first router to the first auxiliary router via the first control path without being routed through the server.
  • Using Video Viewing Patterns To Determine Content Placement

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  • US Patent:
    20130104175, Apr 25, 2013
  • Filed:
    Oct 25, 2011
  • Appl. No.:
    13/280741
  • Inventors:
    David Applegate - Maplewood NJ,
    Aaron Archer - South Orange NJ,
    Kyung-Wook Hwang - New York NY,
    Vijay Gopalakrishnan - Edison NJ,
    Seungjoon Lee - Basking Ridge NJ,
    Kadangode K. Ramakrishnan - Berkeley Heights NJ,
    Deborah F. Swayne - Summit NJ,
  • Assignee:
    AT&T Intellectual Property I.L.P. - Atlanta GA
  • International Classification:
    H04N 21/20
  • US Classification:
    725 87
  • Abstract:
    A method includes receiving demand information for a first segment of a media content item and receiving demand information for a second segment of the media content item. The method includes assigning the first segment to a first set of distribution nodes of a media content distribution system based at least partially on the demand information for the first segment and based at least partially on a first cost function and assigning the second segment to a second set of distribution nodes of the media content distribution system based at least partially on the demand information for the second segment and based at least partially on a second cost function. The media content distribution system includes a plurality of distribution nodes and each distribution node is configured to provide media content items to at least some of a plurality of endpoints.

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