Patents by Inventor Shridhar Krishnamurthy

Shridhar Krishnamurthy 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: 7327708
    Abstract: A system and method for optimizing a multimedia transmission from a content source to an end user over a link. The wireless content switch comprising an upstream port for receiving one or more data packets and for transmitting one or more status to a content source, a downstream port for transmitting the one or more data packets and for receiving one or more status from an end user, at least one processing unit coupled to the upstream and down stream ports, and memory for storing the one or more data packets responsive to receiving the data packets. Optimization code is stored in the memory, the optimization code, when executed, receiving at least one data packet, transmitting the data packet, receiving status information, transmitting status information, determining quality of service assigned to the end user, determining session specific status for the end user, and transmitting the quality of service and session specific status.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: February 5, 2008
    Assignee: Inet Technologies, Inc.
    Inventors: Sridhar Komandur, Gokul V. Subramaniam, Jogen K. Pathak, Shridhar Krishnamurthy, Janet H. Lind, Prasad Govindarajan
  • Patent number: 6760343
    Abstract: A method, apparatus, and instructions for establishing a virtual communication channel between applications on different nodes in which one node may be using a communication protocol stack based on one protocol, such as SS7, and another node may be using a communication protocol stack based on another protocol, such as IP. Alternatively, a virtual communication channel may be provided between applications on different nodes in which both nodes use a communication protocol stack based on IP to communicate with each other, but carry SS7 traffic through the communication channel. A gateway is provided in which both SS7 and IP are supported. The gateway allows for logical transport of signaling messages between peer applications on different nodes. Messages for SS7 are placed in data packets for transport to a destination using an IP connection or link to the destination. Header information also is placed into the data packet to allow for routing of the messages when the packet is received at the destination.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: July 6, 2004
    Assignee: Nortel Networks Limited
    Inventors: Shridhar Krishnamurthy, Jogen Kanubhai Pathak, Steve William Racz
  • Publication number: 20040047290
    Abstract: A system and method for optimizing a multimedia transmission from a content source to an end user over a link. The wireless content switch comprising an upstream port for receiving one or more data packets and for transmitting one or more status to a content source, a downstream port for transmitting the one or more data packets and for receiving one or more status from an end user, at least one processing unit coupled to the upstream and down stream ports, and memory for storing the one or more data packets responsive to receiving the data packets. Optimization code is stored in the memory, the optimization code, when executed, receiving at least one data packet, transmitting the data packet, receiving status information, transmitting status information, determining quality of service assigned to the end user, determining session specific status for the end user, and transmitting the quality of service and session specific status.
    Type: Application
    Filed: April 25, 2003
    Publication date: March 11, 2004
    Inventors: Sridhar Komandur, Gokul V. Subramaniam, Jogen K. Pathak, Shridhar Krishnamurthy, Janet H. Lind, Prasad Govindarajan
  • Publication number: 20030137948
    Abstract: A system, method, and apparatus for transmitting packet data over a wireless network to a mobile station is presented herein. Packet data are received at a wireless content switch that is part of the wireless data network. The wireless content switch is equipped to detect lost packets, lost acknowledgments, and take appropriate remedial action, without invoking the congestion control and avoidance mechanisms of the transmission control protocol.
    Type: Application
    Filed: November 7, 2002
    Publication date: July 24, 2003
    Inventors: Sridhar Komandur, Janet H. Lind, Jogen K. Pathak, Rangaprasad Govindarajan, Shridhar Krishnamurthy
  • Publication number: 20030128672
    Abstract: A system, method, and apparatus for transmitting packet data over a wireless network to a mobile station is presented herein. Packet data are received at a wireless content switch that is part of the wireless data network. The wireless content switch is equipped to detect lost packets, lost acknowledgments, and take appropriate remedial action, without invoking the congestion control and avoidance mechanisms of the transmission control protocol.
    Type: Application
    Filed: February 11, 2003
    Publication date: July 10, 2003
    Inventors: Sridhar Komandur, Janet H. Lind, Jogen K. Pathak, Rangaprasad Govindarajan, Shridhar Krishnamurthy
  • Publication number: 20030063581
    Abstract: A system and method for seamless interaction between a wireless local network (WLAN) and a wireless packet data network is presented herein. A wireless content switch is placed between the WLAN and wireless packet data network. The wireless content switch authenticates the wireless clients of the WLAN and assists nodes in the wireless packet data in authenticating the wireless client.
    Type: Application
    Filed: October 2, 2002
    Publication date: April 3, 2003
    Inventors: Vyankatesh Shanbhag, Jogen Kanubhai Pathak, Shridhar Krishnamurthy, Rangaprasad Govindarajan, Janet H. Lind
  • Publication number: 20030035407
    Abstract: A system, method, and apparatus for transmitting packet data over a wireless network to a mobile station is presented herein. Packet data are received at a wireless content switch which is interposed between a wireline network and the mobile station. The wireless content switch is equipped to detect lost packets, lost acknowledgments, and take appropriate remedial action, without invoking the congestion control and avoidance mechanisms of the transmission control protocol.
    Type: Application
    Filed: June 19, 2001
    Publication date: February 20, 2003
    Inventors: Rangaprasad Govindarajan, Shridhar Krishnamurthy, Jogen Pathak
  • Publication number: 20030031161
    Abstract: An apparatus and method for controlling a wireless terminal and a destination terminal with a wireless content switch in a wireless packet data network. The wireless content switch monitors data packets and acknowledgments transmitted to and from the wireless terminal and the destination terminal. The wireless content switch detects disruptions in the wireless packet data network and sends a transmission to the terminal remaining in communication with the wireless content switch to place the remaining terminal in a wait state. The wireless content switch then monitors and detects an improvement in the wireless packet data network. After the wireless content switch detects an improvement, the wireless content switch resumes the session, continuing transmission from the point which the disruption occurred.
    Type: Application
    Filed: August 7, 2002
    Publication date: February 13, 2003
    Inventors: Robert W. Froehlich, Shridhar Krishnamurthy
  • Publication number: 20030014128
    Abstract: A method and apparatus for measuring application performance over a wireless data network is presented herein. A wireless content switch is placed between a wired network and a wireless client such that data packets sent from the wired network to the wireless client and vice versa are received at the wireless content switch. The wireless content switch examines the protocol stack and data associated with the data packet and measures the performance of applications. The performance of applications is measured using one of a plurality of measures, based on the type of application associated with the data packet. Wherein an application is found to be associated with low performance, graceful degradation can be imposed.
    Type: Application
    Filed: July 10, 2002
    Publication date: January 16, 2003
    Inventors: Jogen K. Pathak, Shridhar Krishnamurthy, Rangaprasad Govindarajan
  • Publication number: 20020131447
    Abstract: A system for processing wireless packet data is provided. The system includes a gateway radio packet interface receiving radio packet data from a gateway radio packet node. A content switch system coupled to the gateway radio packet interface receives the radio packet data, extracts one or more predetermined data fields from the radio packet data, and performs one or more predetermined actions based on the extracted data fields. A serving radio packet interface coupled to the content switch system transmits the radio packet data to a serving radio packet node.
    Type: Application
    Filed: April 19, 2001
    Publication date: September 19, 2002
    Inventors: Shridhar Krishnamurthy, Jogen K. Pathak