Patents by Inventor Cadathur V. Chakravarthy

Cadathur V. Chakravarthy 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: 20120214481
    Abstract: A multimode handset and method that includes a first communications path adapted to communicate using a mobile telephone communications protocol, a second communications path adapted to communicate using a local cordless communications protocol, and a processing unit in communication with the first communications path and the second communications paths and configured to switch between the first communications path and the second communications path during a telephone call.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 23, 2012
    Inventors: Amar N. Ray, Cadathur V. Chakravarthy
  • Patent number: 8224307
    Abstract: A multimode handset and method that includes a first communications path adapted to communicate using a mobile telephone communications protocol, a second communications path adapted to communicate using a local, cordless communications protocol, and a processing unit in communication with the first and second communications paths and configured to switch between the first and second communications path during a telephone call.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: July 17, 2012
    Assignee: Embarq Holdings Company, LLC
    Inventors: Amar N. Ray, Cadathur V. Chakravarthy
  • Patent number: 8125897
    Abstract: A method for monitoring and optimizing performance of a packet network utilizing user datagram protocol including determining network performance information between a sending user datagram protocol network element and a receiving user datagram protocol network element; concatenating the network performance information into data packets; transmitting the data packets to at least one non-user datagram protocol network device having transport layer capabilities; and controlling bandwidth of the at least one non-user datagram protocol network device to optimize the network utilizing the user datagram protocol based on the network performance information in the data packets. A system for monitoring and optimizing performance of a packet network utilizing user datagram protocol is also included.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: February 28, 2012
    Assignee: Embarq Holdings Company LP
    Inventors: Amar N. Ray, Cadathur V. Chakravarthy
  • Patent number: 8098579
    Abstract: A system for adjusting the window size of a TCP packet on a packet network including a receiving transport layer device configured to determine network performance information of the packet network; concatenate the network performance information into the data packets; adjust the window size of the TCP packet based on the network performance information; a non-transport layer device in communication with the receiving transport layer device for receiving the data packets; and a transport layer device in communication with the non-transport layer device, wherein the non-transport layer device forwards the data packets on to the transport layer device. A method for adjusting the window size of a TCP packet on a packet network is also included.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: January 17, 2012
    Assignee: Embarq Holdings Company, LP
    Inventors: Amar N. Ray, Michael K. Bugenhagen, Robert J. Morrill, Cadathur V. Chakravarthy
  • Publication number: 20100195805
    Abstract: In one embodiment of the present invention, a method and system may be provided for providing notification that an emergency call is being placed. The system and method includes identifying a telephone call as being an emergency call, identifying a calling party of the telephone call, locating a notification list associated with the identified calling party, and sending a notification to members on the notification list.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 5, 2010
    Inventors: JOHN ZEIGLER, Jeffrey L. Leister, Cadathur V. Chakravarthy
  • Publication number: 20100099376
    Abstract: A system and method for registering the contact information of mobile devices with a service 911 service is presented. In one embodiment, a mobile switching center receives the contact information of a mobile device. If the mobile switching center determines that the mobile device is not located within a particular wireless sub-network, such as, but not limited to, a wireless sub-network associated with an area code registered to the mobile device, the mobile switching center generates a reverse 911 registration text message and transmits the reverse 911 registration text message to the mobile device. A user of the mobile device may then transmit the reverse 911 registration text message to a local reverse 911 database to have the contact information associated with the mobile device added to the local reverse 911 database.
    Type: Application
    Filed: October 21, 2008
    Publication date: April 22, 2010
    Inventors: AMAR N. RAY, Cadathur V. Chakravarthy
  • Publication number: 20100099374
    Abstract: In one embodiment, when a mobile device is powered on, a mobile switching center acquires the contact information, such as, but not limited to, a phone number and the physical location associated with the mobile device. If the mobile device is a new device to the area, the contact information of the mobile device is passed to a reverse 911 database in order for a user of the mobile device to receive local alert messages transmitted by a reverse 911 system.
    Type: Application
    Filed: October 21, 2008
    Publication date: April 22, 2010
    Inventors: Amar N. Ray, Cadathur V. Chakravarthy
  • Publication number: 20100085887
    Abstract: A system for adjusting the window size of a TCP packet on a packet network including a sending network element in communication with a receiving network element for transmitting and receiving data packets between the sending network element and the receiving network element on the packet network, wherein at least one of the sending network element and the receiving network element is configured to determine network performance information of the packet network; concatenate the network performance information into the data packets; and adjust the window size of the TCP packet based on the network performance information. A method for adjusting the window size of a TCP packet on a packet network is also included.
    Type: Application
    Filed: December 8, 2009
    Publication date: April 8, 2010
    Inventors: Amar N. Ray, Michael K. Bugenhagen, Robert J. Morrill, Cadathur V. Chakravarthy
  • Patent number: 7684332
    Abstract: A system for adjusting the window size of a TCP packet on a packet network including a sending network element in communication with a receiving network element for transmitting and receiving data packets between the sending network element and the receiving network element on the packet network, wherein at least one of the sending network element and the receiving network element is configured to determine network performance information of the packet network; concatenate the network performance information into the data packets; and adjust the window size of the TCP packet based on the network performance information. A method for adjusting the window size of a TCP packet on a packet network is also included.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: March 23, 2010
    Assignee: Embarq Holdings Company, LLC
    Inventors: Amar N. Ray, Michael K. Bugenhagen, Robert J. Morrill, Cadathur V. Chakravarthy
  • Publication number: 20090163198
    Abstract: A system and method for establishing a signal parameter threshold for switching between communications protocols by a multimode handset may include providing cordless telephones of different models. A dropout point at which a communications signal of each of the cordless telephones deteriorates below a predetermined level may be determined. At least one signal parameter of the communications signal at the determined dropout point of each of the cordless telephones may be measured and collected. The signal parameter(s) associated with the cordless telephone having the shortest range at which the associated dropout point may be determined so that a multimode handset may be established with the signal parameter(s) to cause the multimode handset to switch communications protocols in response to the multimode handset crossing a signal parameter threshold level defined by the predetermined signal parameter(s) when communicating with a base unit of a cordless telephone.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 25, 2009
    Applicant: Embarq Holdings Company, LLC
    Inventors: Amar N. Ray, Cadathur V. Chakravarthy
  • Publication number: 20090097474
    Abstract: A system and method for providing location information to a public safety answering point from a softphone may include receiving, at a network access point, an emergency 911 call from the softphone. The emergency 911 call may be communicated to a public safety answering point. In response to a call connection message being received, an address location of the network access point to which the softphone is in communication in placing the emergency 911 call to the public safety answering point may be communicated in a type II caller ID data packet. The softphone may generate the type II caller ID data packet with the address location in a data field, such as a data field typically used for name information of a caller.
    Type: Application
    Filed: October 16, 2007
    Publication date: April 16, 2009
    Inventors: Amar N. Ray, Cadathur V. Chakravarthy
  • Publication number: 20090047924
    Abstract: A system and method for providing location information to a public safety answering point may include receiving, at a network access point, an emergency 911 call signal including GPS location information and mobile directory number of a wireless device. The GPS location information and mobile directory information may be communicated to a selective router associated with a public safety access point servicing an area including the network access point. The network access point may be a WiFi access point. The access point address information may be communicated using a type II caller ID data packet after the public safety answering point goes off-hook. By communicating both the access point address information and GPS location information, both PSAPs that are configured as E911 Phase I and E911 Phase II may display address location information of an emergency 911 caller.
    Type: Application
    Filed: August 13, 2007
    Publication date: February 19, 2009
    Inventors: Amar N. Ray, Cadathur V. Chakravarthy
  • Publication number: 20080144779
    Abstract: A system and method for communicating location information of a VoIP subscriber to a public-safety answering point may include receiving an E-911 telephone call from a VoIP telephone. Location information associated with the VoIP telephone stored in a database may be requested. The location information may be received in a signal formatted substantially the same as a signal format for communicating caller identification information. The location information may be displayed at a public-safety answering point. In one embodiment, the location information may be displayed on a video display.
    Type: Application
    Filed: December 18, 2006
    Publication date: June 19, 2008
    Inventors: Amar N. Ray, Cadathur V. Chakravarthy
  • Publication number: 20080085746
    Abstract: A multimode handset and method that includes a first communications path adapted to communicate using a mobile telephone communications protocol, a second communications path adapted to communicate using a local, cordless communications protocol, and a processing unit in communication with the first and second communications paths and configured to switch between the first and second communications path during a telephone call.
    Type: Application
    Filed: October 6, 2006
    Publication date: April 10, 2008
    Inventors: Amar N. Ray, Cadathur V. Chakravarthy
  • Publication number: 20080049638
    Abstract: A method for monitoring and optimizing performance of a packet network utilizing user datagram protocol including determining network performance information between a sending user datagram protocol network element and a receiving user datagram protocol network element; concatenating the network performance information into data packets; transmitting the data packets to at least one non-user datagram protocol network device having transport layer capabilities; and controlling bandwidth of the at least one non-user datagram protocol network device to optimize the network utilizing the user datagram protocol based on the network performance information in the data packets. A system for monitoring and optimizing performance of a packet network utilizing user datagram protocol is also included.
    Type: Application
    Filed: May 31, 2007
    Publication date: February 28, 2008
    Inventors: Amar N. Ray, Cadathur V. Chakravarthy
  • Publication number: 20080049632
    Abstract: A system for adjusting the window size of a TCP packet on a packet network including a receiving transport layer device configured to determine network performance information of the packet network; concatenate the network performance information into the data packets; adjust the window size of the TCP packet based on the network performance information; a non-transport layer device in communication with the receiving transport layer device for receiving the data packets; and a transport layer device in communication with the non-transport layer device, wherein the non-transport layer device forwards the data packets on to the transport layer device. A method for adjusting the window size of a TCP packet on a packet network is also included.
    Type: Application
    Filed: May 31, 2007
    Publication date: February 28, 2008
    Inventors: Amar N. Ray, Michael K. Bugenhagen, Robert J. Morrill, Cadathur V. Chakravarthy
  • Publication number: 20080049624
    Abstract: A system for adjusting the window size of a TCP packet on a packet network including a sending network element in communication with a receiving network element for transmitting and receiving data packets between the sending network element and the receiving network element on the packet network, wherein at least one of the sending network element and the receiving network element is configured to determine network performance information of the packet network; concatenate the network performance information into the data packets; and adjust the window size of the TCP packet based on the network performance information. A method for adjusting the window size of a TCP packet on a packet network is also included.
    Type: Application
    Filed: May 31, 2007
    Publication date: February 28, 2008
    Inventors: Amar N. Ray, Michael K. Bugenhagen, Robert J. Morrill, Cadathur V. Chakravarthy
  • Patent number: 6079042
    Abstract: A method is provided for recovery of lost cells in a telecommunications infrastructure such as an ATM network wherein an error recovery scheme is incorporated into the network infrastructure to allow recovery of cells along the network.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: June 20, 2000
    Assignee: The Trustees of the Stevens Institute of Technology
    Inventors: Dhadesugoor R. Vaman, Cadathur V. Chakravarthy, Kicheon Hong
  • Patent number: 5993056
    Abstract: A method is provided for recovery of lost cells in an ATM network wherein an error recovery scheme is incorporated into the ATM adaptation layer to allow recovery of cells along the network.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: November 30, 1999
    Assignee: Stevens Institute of Technology
    Inventors: Dhadesugoor R. Vaman, Cadathur V. Chakravarthy, Kicheon Hong