Patents by Inventor Madhu Sudan

Madhu Sudan 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).

  • Patent number: 8102854
    Abstract: A network device is to receive traffic including neighbor discovery messages from requesting customer devices, and can detect the neighbor discovery messages within the traffic according to a distributed inspection scheme that includes the network device and a remote component. The network device is to then examine the neighbor discovery messages to determine if the neighbor discovery message should be forwarded to other of the customer devices, and respond to the requesting customer devices.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: January 24, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Hemant Singh, William Beebee, Madhu Sudan, Joshua Littlefield
  • Publication number: 20110208845
    Abstract: An apparatus may include a port to receive a ranging request from a cable modem and a processor in communication with the port. The processor may assign a service identifier to the cable modem, match the service identifier with a link layer address of the cable modem, receive a router advertisement and comparing the source link layer address from the router advertisement to the link layer address of the cable modem, and determine if the link layer address of the cable modem is the same as the source link layer address.
    Type: Application
    Filed: April 29, 2011
    Publication date: August 25, 2011
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Ralph E. Droms, Madhu Sudan, Sanjeev Hemantkumar Desai, John T. Chapman, Raman S. Krishnan
  • Patent number: 7941512
    Abstract: An embodiment method may comprise establishing a link layer connection to an access server, obtaining a management address, wherein the management address is at least one of an IPv6 and an IPv4 address, obtaining a TFTP server address, wherein the server address is either IPv6 or IPv4, downloading a configuration file from the TFTP server, registering with the access server as IPv6 capable, maintaining an IP address/prefix-MAC mapping database, and determining whether the IPv6 address belongs to a particular media access control (MAC) address based on the IP address/prefix-MAC mapping database.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: May 10, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Ralph E. Droms, Madhu Sudan, Sanjeev Hemantkumar Desai, John T. Chapman, Raman S. Krishnan
  • Publication number: 20110029119
    Abstract: A manufacturing process including a controller method to generate a tool setting which includes a tool offset and a device offset. The controller method uses a device parameter measurement to update the tool offset and device offset. A tool weight and a device weight is assigned so that only one of the tool offset and device offset is significantly changed during the update. The process may be applied to semiconductor device manufacturing and particularly to integrated circuit fabrication.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 3, 2011
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Madhu Sudan RAMAVAJJALA, Kristi BUSHMAN, Robert Ray SPANGLER, Stephen Arlon MEISNER, Ronald Charles ROTH
  • Publication number: 20100309813
    Abstract: A network processing device is configured to receive a configuration message from a host device and forward the configuration message to a server. The configuration message can be configured to request the server assign an Internet Protocol (IP) address to the host device. The network processing device can be configured to send at least one probe message to the host device responsive to receiving the configuration message. The network processing device can be configured to determine whether the host device intends to continue utilizing a previously assigned IP address in addition to the IP address requested by the configuration message based, at least in part, on any responses to the at least one probe message received from the host device.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 9, 2010
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Hemant Singh, William Beebee, Madhu Sudan
  • Patent number: 7710967
    Abstract: A management scheme compares a source address included in a received solicitation with an address for a registered endpoint. A communication including a management prefix is communicated to the endpoint when the source address matches the registered address.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: May 4, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Ciprian P. Popoviciu, Adeel Ahmed, Ralph E. Droms, Salman Asadullah, Madhu Sudan, Anthony L. Hain
  • Publication number: 20100020821
    Abstract: A network device has a communications link to allow the device to communicate with customer devices and a processor. The processor is to receive neighbor discovery messages from requesting customer devices, examine the neighbor discovery messages to determine if the neighbor discovery message should be forwarded to other of the customer devices, and respond to the requesting customer devices.
    Type: Application
    Filed: October 1, 2009
    Publication date: January 28, 2010
    Applicant: Cisco Technology, Inc.
    Inventors: Ralph Edward Droms, Madhu Sudan
  • Patent number: 7646786
    Abstract: A network device has a communications link to allow the device to communicate with customer devices and a processor. The processor is to receive neighbor discovery messages from requesting customer devices, examine the neighbor discovery messages to determine if the neighbor discovery message should be forwarded to other of the customer devices, and respond to the requesting customer devices.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: January 12, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Ralph Edward Droms, Madhu Sudan
  • Patent number: 7602904
    Abstract: A system provides an order-invariant fuzzy commitment scheme. In an exemplary embodiment, the scheme includes receiving a first set of elements and selecting a polynomial for encoding an item under the first set of elements to generate an order-invariant fuzzy commitment of the item. The system utilizes an error-correcting code for decommitting the item if a second set of elements has a specified level of overlap with the first set of elements.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: October 13, 2009
    Assignee: RSA Security, Inc.
    Inventors: Ari Juels, Madhu Sudan
  • Publication number: 20090125957
    Abstract: A CMTS or other data aggregation component having a DHCPv6 relay agent extracts a Media Access Control (MAC) address of an end device from a data packet received from an end device. A DHCPv6 data frame is created for transmission to a DHCPv6 server. The MAC address may be inserted into a specific option of the DHCPv6 data frame, where data in the option may not be processed by the server and are echoed back to the aggregation component or CMTS. The DHCPv6 data frame is transmitted to the DHCPv6 server. The component receives a response message from the server that may contain the MAC address or similar client hardware address as it was sent to the server by the network component. The network component may determine an outgoing port interface from which the response message should be sent, utilizing the MAC address and an interface bundling table. In this manner, interface bundling may be enabled.
    Type: Application
    Filed: November 14, 2007
    Publication date: May 14, 2009
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Hemant SINGH, Madhu SUDAN, Shengyou ZENG
  • Publication number: 20080298277
    Abstract: A network device is to receive traffic including neighbor discovery messages from requesting customer devices, and can detect the neighbor discovery messages within the traffic according to a distributed inspection scheme that includes the network device and a remote component. The network device is to then examine the neighbor discovery messages to determine if the neighbor discovery message should be forwarded to other of the customer devices, and respond to the requesting customer devices.
    Type: Application
    Filed: August 15, 2008
    Publication date: December 4, 2008
    Applicant: Cisco Technology, Inc.
    Inventors: Hemant SINGH, William Beebee, Madhu Sudan, Joshua Littelfield
  • Publication number: 20070180483
    Abstract: A management scheme compares a source address included in a received solicitation with an address for a registered endpoint. A communication including a management prefix is communicated to the endpoint when the source address matches the registered address.
    Type: Application
    Filed: February 1, 2006
    Publication date: August 2, 2007
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Ciprian Popoviciu, Adeel Ahmed, Ralph Droms, Salman Asadullah, Madhu Sudan, Anthony Hain
  • Patent number: 7094329
    Abstract: An industrially useful peroxo-carbonate is electrolytically produced using, as a raw material, carbon dioxide that is inexpensive and easily available. A process of producing a peroxo-carbonate, includes feeding a carbon dioxide gas into an electrolytic cell having a gas diffusion anode and a cathode, or feeding a liquid having a carbon dioxide gas dissolved therein into an electrolytic cell having an anode and a cathode, and electrolytically converting the carbon dioxide gas into a peroxo-carbonate. By properly setting up electrolytic conditions such as electrodes, a useful peroxo-carbonate can be produced with high current efficiency using inexpensive carbon dioxide as the raw material.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: August 22, 2006
    Assignee: Permelec Electrode Ltd.
    Inventors: Madhu Sudan Saha, Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta, Tateki Kurosu
  • Publication number: 20060159100
    Abstract: An embodiment method may comprise establishing a link layer connection to an access server, obtaining a management address, wherein the management address is at least one of an IPv6 and an IPv4 address, obtaining a TFTP server address, wherein the server address is either IPv6 or IPv4, downloading a configuration file from the TFTP server, and registering with the access server as IPv6 capable. Another embodiment may be a cable modem termination system (CMTS) comprising a port to receive downstream internet protocol (IP) traffic, a processor in communication with the port, the processor to classify downstream traffic based on fields in IP version 6 (IPv6) headers; and a radio frequency port in communication with the processor, the radio frequency port to send downstream traffic from the CMTS, wherein the processor uses a flow label as the downstream classifier so IP addresses can remain encrypted in the downstream traffic.
    Type: Application
    Filed: December 13, 2005
    Publication date: July 20, 2006
    Inventors: Ralph Droms, Madhu Sudan, Sanjeev Desai, John Chapman, Raman Krishnan
  • Publication number: 20050265261
    Abstract: A network device has a communications link to allow the device to communicate with customer devices and a processor. The processor is to receive neighbor discovery messages from requesting customer devices, examine the neighbor discovery messages to determine if the neighbor discovery message should be forwarded to other of the customer devices, and respond to the requesting customer devices.
    Type: Application
    Filed: December 30, 2004
    Publication date: December 1, 2005
    Inventors: Ralph Droms, Madhu Sudan
  • Publication number: 20040245116
    Abstract: Simple and economic electrolytic synthesis of peracetic acid is performed, and cold drink containers, etc., are sterilized/cleaned with an aqueous solution of peracetic acid thus obtained. Peracetic acid is electrolytically synthesized from acetic acid and/or acetate and an oxygen-containing gas as starting materials in the presence of a solid acid catalyst in an electrolytic cell. An object to be cleaned is sterilized/cleaned with an aqueous solution of peracetic acid thus obtained. Peracetic acid can be simply obtained at a reduced cost. The sterilizing/cleaning of an object to be cleaned with peracetic acid can be conducted efficiently.
    Type: Application
    Filed: March 29, 2004
    Publication date: December 9, 2004
    Applicant: PERMELEC ELECTRODE LTD.
    Inventors: Takeo Ohsaka, Madhu Sudan Saha, Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta
  • Patent number: 6794979
    Abstract: A fuse holder and method of building the same, the fuse holder comprising: a fuse having a pair of fuse terminals; a housing configured to accept any fuse carrier selected from a plurality of fuse carriers, the housing defining an enclosed region adapted to accept the fuse; a pair of contacts within the housing at opposite ends of the enclosed region and configured to engage the fuse terminals; and a fuse carrier selected from the plurality of fuse carriers, the fuse carrier configured to support the fuse and position the fuse terminals in the enclosed region in electrical engagement with the pair of contacts.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: September 21, 2004
    Assignee: General Electric Company
    Inventors: Madhu Sudan, Javier Gomez Martin, Jorge Vallejo, Anilkumar Dinker Pandit
  • Patent number: 6759939
    Abstract: A fuse holder comprising: a housing defining an enclosed region, the housing comprises a base and a cover, the base and cover adapted to accept differently configured cage holders within the enclosed region; a pair of contacts within the housing at opposite ends of the enclosed region and spaced to engage terminals on ends of a fuse; and a first cage holder and second cage holder configured to fit within in the housing, each cage holder of the first and second cage holders includes either a single pole cage or a plurality of pole cages.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: July 6, 2004
    Assignee: General Electric Company
    Inventors: Madhu Sudan, Javier Gomez Martin, Jorge Vallejo, Anilkumar Dinker Pandit
  • Patent number: 6720771
    Abstract: The present invention relates to a moving dipole source electromagnetic induction device and method for carrying out geophysical surveys. The device is useful to locate deeper sub-surface bodies under poor electrical conducting surfaces and for mapping sub-surfacial conductivity changes due to salinity or pollution. The device includes a transmitter coil forming a series resonant circuit with tuning capacitor producing primary electromagnetic field and a receiver set. The receiver set up picks up resultant time varying feeble secondary electromagnetic field produced by transmitter components and a target. The secondary field amplitude is improved by increasing power of the transmitter coil. The transmitter and receiver set up produces an analog signal which is fed to A/D converter to obtain a digital signal to display the obtained data on an LCD display and storing the same data in a digital computer.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: April 13, 2004
    Assignee: Council of Scientific & Industrial Research
    Inventors: Om Prakash Gupta, Sureneni Nageswara Rao, Madhu Sudan Joshi
  • Publication number: 20040000919
    Abstract: The present invention relates to moving dipole source electromagnetic induction device for deeper and poorer electrically conducting subsurface bodies the present invention also relates to a method for detecting deeper and poorer electrically conducting subsurface bodies.
    Type: Application
    Filed: March 26, 2002
    Publication date: January 1, 2004
    Inventors: Om Prakash Gupta, Sureneni Nageswara Rao, Madhu Sudan Joshi