Patents by Inventor Kadangode Ramakrishnan

Kadangode Ramakrishnan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20060251010
    Abstract: Provided are apparatuses and methods for transmitting or receiving data packets in a data block in a communication network with a transport protocol. In one example, a loss tolerant TCP protocol is used in which a maximum segment size (MSS) may be adapted to a minimum granularity of a congestion window. Also, proactive forward error correction (FEC) packets may be added to a window of the data block. The number of proactive FEC packets may be determined, for example, based on an estimate erasure rate. In addition, reactive FEC packets may be added to the data block. Also, a receiver may receive data packets in a data block and process a selective acknowledgment (SACK) responsive to the data packets received.
    Type: Application
    Filed: December 1, 2005
    Publication date: November 9, 2006
    Applicants: AT&T Corp., Rensselaer Polytechnic Institute
    Inventors: Kadangode Ramakrishnan, Shivkumar Kalyanaraman, Vijaynarayanan Subramanian, Omesh Tickoo
  • Publication number: 20060250949
    Abstract: Provided are apparatuses and methods for transmitting or receiving data packets in a data block in a communication network with a transport protocol. In one example, a loss tolerant TCP protocol is used in which a maximum segment size (MSS) may be adapted to a minimum granularity of a congestion window. Also, proactive forward error correction (FEC) packets may be added to a window of the data block. The number of proactive FEC packets may be determined, for example, based on an estimate erasure rate. In addition, reactive FEC packets may be added to the data block. Also, a receiver may receive data packets in a data block and process a selective acknowledgment (SACK) responsive to the data packets received.
    Type: Application
    Filed: December 1, 2005
    Publication date: November 9, 2006
    Applicants: AT&T Corp., Rensselaer Polytechnic Institute
    Inventors: Kadangode Ramakrishnan, Shivkumar Kalyanaraman, Vijaynarayanan Subramanian, Omesh Tickoo
  • Publication number: 20060251011
    Abstract: Provided are apparatuses and methods for transmitting or receiving data packets in a data block in a communication network with a transport protocol. In one example, a loss tolerant TCP protocol is used in which a maximum segment size (MSS) may be adapted to a minimum granularity of a congestion window. Also, proactive forward error correction (FEC) packets may be added to a window of the data block. The number of proactive FEC packets may be determined, for example, based on an estimate erasure rate. In addition, reactive FEC packets may be added to the data block. Also, a receiver may receive data packets in a data block and process a selective acknowledgment (SACK) responsive to the data packets received.
    Type: Application
    Filed: December 1, 2005
    Publication date: November 9, 2006
    Applicants: AT&T Corp., Rensselaer Polytechnic Institute
    Inventors: Kadangode Ramakrishnan, Shivkumar Kalyanaraman, Vijaynarayanan Subramanian, Omesh Tickoo
  • Publication number: 20060104280
    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.
    Type: Application
    Filed: December 29, 2005
    Publication date: May 18, 2006
    Inventors: Sean Carolan, John Garrett, Charles Kalmanek, Han Nguyen, Kadangode Ramakrishnan
  • Publication number: 20050068961
    Abstract: Method and apparatus for effectively supporting resource allocation and admission control of a Virtual Private Network in a service provider network.
    Type: Application
    Filed: May 7, 2004
    Publication date: March 31, 2005
    Inventors: Satish Raghunath, Kadangode Ramakrishnan
  • Publication number: 20050041797
    Abstract: A system and method for providing telephony and high-speed data access over a broadband access network, comprising a network interface unit (NIU) coupled to a backup local exchange carrier (LEC) line, the broadband access network coupled to the NIU, an intermediate point-of-presence (IPOP) coupled to the broadband access network, and at least one external access network coupled to the IPOP. The system also provides for a fail-safe mode in which the NIU supports the LEC line for lifeline services.
    Type: Application
    Filed: November 10, 2003
    Publication date: February 24, 2005
    Inventors: Steven Bellovin, Joseph Condon, Richard Cox, Alexander Fraser, Charles Kalmanek, Alan Kaplan, Thomas Killian, William Marshall, Peter Onufryk, Kadangode Ramakrishnan, Norman Schryer