Patents by Inventor Krishan K. Sabnani

Krishan K. Sabnani 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: 9667683
    Abstract: A proxy mixer includes a transceiver configured to receive one or more first requests to provide one or more first media streams to one or more first endpoints. The one or more first media streams are generated by one or more second endpoints. The one or more first requests indicate one or more first quality metrics for the one or more first media streams. The transceiver is also configured to provide one or more second requests for the one or more second endpoints to generate the one or more first media streams at an aggregate quality metric that equals a highest quality metric of the one or more first quality metrics. The transceiver is further configured to transmit the one or more first media streams towards the one or more first endpoints.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: May 30, 2017
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Katherine H. Guo, Martin D. Carroll, Ilija Hadzic, Krishan K. Sabnani
  • Publication number: 20160352794
    Abstract: A proxy mixer includes a transceiver configured to receive one or more first requests to provide one or more first media streams to one or more first endpoints. The one or more first media streams are generated by one or more second endpoints. The one or more first requests indicate one or more first quality metrics for the one or more first media streams. The transceiver is also configured to provide one or more second requests for the one or more second endpoints to generate the one or more first media streams at an aggregate quality metric that equals a highest quality metric of the one or more first quality metrics. The transceiver is further configured to transmit the one or more first media streams towards the one or more first endpoints.
    Type: Application
    Filed: May 28, 2015
    Publication date: December 1, 2016
    Inventors: Katherine H. Guo, Martin D. Carroll, Ilija Hadzic, Krishan K. Sabnani
  • Publication number: 20160335447
    Abstract: Various embodiments relate to a method, network node, and non-transitory machine-readable storage medium including the following: providing access to an enterprise file system to end user devices via a virtual private network (VPN); encrypting at least a portion of an enterprise file system to produce an encrypted file system, wherein an encrypted file from the encrypted file system is capable of being decrypted using a decryption key; transmitting the encrypted file system to a content distribution network (CDN) server for storage and access, wherein the CDN server is located outside the VPN; and transmitting the decryption key to an end user device via the VPN.
    Type: Application
    Filed: May 15, 2015
    Publication date: November 17, 2016
    Inventors: Katherine H. GUO, Krishan K SABNANI
  • Patent number: 9106431
    Abstract: The invention includes a method and apparatus for providing media content. The method includes duplicating each packet of an original packet stream for which an associated importance level satisfies an importance condition, inserting each duplicate packet within the original packet stream to form thereby a modified packet stream, and transmitting the modified packet stream toward a wireless terminal adapted for processing the modified packet stream for presenting the media content conveyed by the original packet stream. The duplicate packets may be inserted within respective windows associated with the duplicate packets, wherein each window is determined according to an original packet position associated with the original packet from which the duplicate packet is formed.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: August 11, 2015
    Assignee: Alcatel Lucent
    Inventors: Katherine H. Guo, Arun Narayen Netravali, Krishan K. Sabnani
  • Patent number: 9107236
    Abstract: The invention includes a method and apparatus for scheduling multicast transmissions in a wireless network by selecting one of a plurality of multicast groups of a cellular region that is permitted to transmit information during a current timeslot. A method includes receiving data rate request values from wireless user terminals of each of a plurality of multicast groups, assigning a data rate to each multicast group using the data rate request values of wireless user terminals belonging to the respective multicast groups, selecting one of the multicast groups using the assigned data rates, and transmitting information to the selected one of the multicast groups at the associated assigned data rate. In one embodiment, the multicast scheduling algorithm may be a multicast proportional fairness (MPF) scheduling algorithm which attempts to maximize utility value of data received by individual users.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: August 11, 2015
    Assignee: Alcatel Lucent
    Inventors: Katherine H. Guo, Arun N. Netravali, Krishan K. Sabnani
  • Patent number: 9014181
    Abstract: An embodiment of the exemplary SoftRouter architecture includes two physically separate networks, a control plane network and a data plane network. The data plane network is one physical network for the data traffic, while the control plane network is another physical network for the control traffic. The topology of the data plane network is made up of interconnected forwarding elements (FEs). The topology of the control plane network is made up interconnected control elements (CEs). This physical independence of the control plane network from the data plane network provides for a secure mechanism to communicate among the CEs in the control plane network. In addition, this physical independence provides improved reliability and improved scalability, when compared to the traditional router architecture, where control plane message are in-band with the data plane.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: April 21, 2015
    Assignee: Alcatel Lucent
    Inventors: Tirunell V. Lakshman, Krishan K. Sabnani, Thomas Y. Woo
  • Patent number: 8996722
    Abstract: A network architecture includes one or more feature servers and control servers in a control plane that is logically separate from a data plane that includes forwarding elements. Feature servers facilitate adding network-based functionality in a centralized way that is has better scalability than the traditional router architecture. Some examples of network-based functionality are voice over IP, enhancing QoS support, scaling BGP route reflectors, network-based VPN support, scaling mobile IP support, introducing IPv6 into existing and future networks, and enhancing end-to-end network security. Feature servers remove complexity from routers, allow functions to be implemented on a standard-off-the-shelf server platform, facilitate easy introduction of value-added functions, and scale well.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: March 31, 2015
    Assignee: Alcatel Lucent
    Inventors: Tirunell V. Lakshman, Krishan K. Sabnani, Thomas Y. Woo
  • Patent number: 8612619
    Abstract: The invention includes a method and apparatus for providing multimedia content to a plurality of wireless terminals. The method includes transcoding an original media stream to form at least one companion media stream, each media stream having a different data rate, and advertising each media stream to each of the plurality of wireless terminals, each wireless terminal having an associated channel condition. The original media stream and at least one companion media stream are each adapted for being selected by each of the wireless terminals. For each wireless terminal selecting one of the media streams, the selected one of the media streams is selected using the data rates of the media streams and the channel condition of the wireless terminal. The transcoding of the media stream to form the at least one companion media stream may be performed using channel condition information.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: December 17, 2013
    Assignee: Alcatel Lucent
    Inventors: Katherine H. Guo, Arun Narayen Netravali, Krishan K. Sabnani
  • Publication number: 20120316966
    Abstract: The invention provides for advertising content selection, presentation, and statistics reporting at a wireless user terminal. The invention includes a method for selecting a subset of advertising content for presentation at the wireless user terminal. The invention includes a method for presenting advertising content at a wireless user terminal in response to one or more conditions detected at the wireless user terminal. The invention includes a method for collecting advertising content presentation statistics and providing the advertising content presentation statistics to at least one network system. In one embodiment, the invention may include one or more of the advertising content selection, presentation, and statistics reporting functions.
    Type: Application
    Filed: August 20, 2012
    Publication date: December 13, 2012
    Inventors: Katherine H. Guo, Arun N. Netravall, Krishan K. Sabnani
  • Patent number: 8291102
    Abstract: The invention includes a method and apparatus for providing multimedia content. The method includes receiving, at a network element having a first buffer, a data stream conveying a media clip having an associated media bit rate, the media clip intended for transmission toward a wireless terminal having a second buffer, and transmitting the data stream toward the wireless terminal at a media transmission rate determined according to a data rate supported by a radio access network over which the data stream is transmitted toward the wireless terminal. The buffers bridge a mismatch between the media bit rate and media transmission rate. The wireless terminal may select one of a plurality of presentation modes, where the selected presentation mode controls streaming of the media clip to the wireless terminal and presentation of the media clip at the wireless terminal.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: October 16, 2012
    Assignee: Alcatel Lucent
    Inventors: Katherine H. Guo, Arun Narayen Netravali, Krishan K. Sabnani
  • Patent number: 8249922
    Abstract: The invention provides for advertising content selection, presentation, and statistics reporting at a wireless user terminal. The invention includes a method for selecting a subset of advertising content for presentation at the wireless user terminal. The invention includes a method for presenting advertising content at a wireless user terminal in response to one or more conditions detected at the wireless user terminal. The invention includes a method for collecting advertising content presentation statistics and providing the advertising content presentation statistics to at least one network system. In one embodiment, the invention may include one or more of the advertising content selection, presentation, and statistics reporting functions.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: August 21, 2012
    Assignee: Alcatel Lucent
    Inventors: Katherine H. Guo, Arun N. Netravali, Krishan K. Sabnani
  • Publication number: 20120011415
    Abstract: The invention includes a method and apparatus for providing media content. The method includes duplicating each packet of an original packet stream for which an associated importance level satisfies an importance condition, inserting each duplicate packet within the original packet stream to form thereby a modified packet stream, and transmitting the modified packet stream toward a wireless terminal adapted for processing the modified packet stream for presenting the media content conveyed by the original packet stream. The duplicate packets may be inserted within respective windows associated with the duplicate packets, wherein each window is determined according to an original packet position associated with the original packet from which the duplicate packet is formed.
    Type: Application
    Filed: September 20, 2011
    Publication date: January 12, 2012
    Inventors: Katherine H. Guo, Arun Narayen Netravali, Krishan K. Sabnani
  • Patent number: 8068502
    Abstract: The invention comprises a method and apparatus for establishing a persistent connection between a user device and a service gateway. Specifically, the method comprises obtaining state information in response to a connection request, establishing a connection between the user device and the service gateway using the state information, and maintaining the state information associated with the connection such that the connection is persistent through at least one network state change.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: November 29, 2011
    Assignee: Alcatel Lucent
    Inventors: Sarit Mukherjee, Sanjoy Paul, Krishan K. Sabnani
  • Patent number: 7715382
    Abstract: The SoftRouter architecture separates the implementation of control plane functions from packet forwarding functions. In this architecture, all control plane functions are implemented on general purpose servers called the control elements (CEs) that may be multiple hops away from the forwarding elements (FEs). A network element (NE) or a router is formed using dynamic binding between the CEs and the FEs. The flexibility of the SoftRouter architecture over conventional routers with collocated and tightly integrated control and forwarding functions results in increased reliability, increased scalability, increased security, ease of adding new functionality, and decreased cost.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: May 11, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Tirunell V. Lakshman, Thyagarajan Nandagopal, Ramachandran Ramjee, Krishan K. Sabnani, Thomas Y. Woo
  • Publication number: 20100085868
    Abstract: The invention includes a method and apparatus for providing media content. The method includes duplicating each packet of an original packet stream for which an associated importance level satisfies an importance condition, inserting each duplicate packet within the original packet stream to form thereby a modified packet stream, and transmitting the modified packet stream toward a wireless terminal adapted for processing the modified packet stream for presenting the media content conveyed by the original packet stream. The duplicate packets may be inserted within respective windows associated with the duplicate packets, wherein each window is determined according to an original packet position associated with the original packet from which the duplicate packet is formed.
    Type: Application
    Filed: December 7, 2009
    Publication date: April 8, 2010
    Inventors: Katherine H. Guo, Arun Narayen Netravali, Krishan K. Sabnani
  • Patent number: 7653055
    Abstract: The invention includes a method and apparatus for providing media content. The method includes duplicating each packet of an original packet stream for which an associated importance level satisfies an importance condition, inserting each duplicate packet within the original packet stream to form thereby a modified packet stream, and transmitting the modified packet stream toward a wireless terminal adapted for processing the modified packet stream for presenting the media content conveyed by the original packet stream. The duplicate packets may be inserted within respective windows associated with the duplicate packets, wherein each window is determined according to an original packet position associated with the original packet from which the duplicate packet is formed.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: January 26, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Katherine H. Guo, Arun Narayen Netravali, Krishan K. Sabnani
  • Publication number: 20080313033
    Abstract: The invention provides for advertising content selection, presentation, and statistics reporting at a wireless user terminal. The invention includes a method for selecting a subset of advertising content for presentation at the wireless user terminal. The invention includes a method for presenting advertising content at a wireless user terminal in response to one or more conditions detected at the wireless user terminal. The invention includes a method for collecting advertising content presentation statistics and providing the advertising content presentation statistics to at least one network system. In one embodiment, the invention may include one or more of the advertising content selection, presentation, and statistics reporting functions.
    Type: Application
    Filed: June 15, 2007
    Publication date: December 18, 2008
    Inventors: Katherine H. Guo, Arun N. Netravali, Krishan K. Sabnani
  • Publication number: 20080273458
    Abstract: The invention includes a method and apparatus for scheduling multicast transmissions in a wireless network by selecting one of a plurality of multicast groups of a cellular region that is permitted to transmit information during a current timeslot. A method includes receiving data rate request values from wireless user terminals of each of a plurality of multicast groups, assigning a data rate to each multicast group using the data rate request values of wireless user terminals belonging to the respective multicast groups, selecting one of the multicast groups using the assigned data rates, and transmitting information to the selected one of the multicast groups at the associated assigned data rate. In one embodiment, the multicast scheduling algorithm may be a multicast proportional fairness (MPF) scheduling algorithm which attempts to maximize utility value of data received by individual users.
    Type: Application
    Filed: May 4, 2007
    Publication date: November 6, 2008
    Inventors: Katherine H. Guo, Arun N. Netravali, Krishan K. Sabnani
  • Publication number: 20080092172
    Abstract: The new zooming feature of the present invention applies to video service on mobile phones. The feature offers more interaction between the end user and the video server and it provides more interesting viewing. It has the potential to become a service differentiator for video services provided by wireless service providers. Because the bandwidth required for the streams does not change, the only complexity incurred is the control message processing and the only extra storage required is at the video server or the proxy.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 17, 2008
    Inventors: Katherine H. Guo, Arun N. Netravali, Krishan K. Sabnani
  • Patent number: 7340253
    Abstract: A system that enables end-to-end networking within CDMA oriented networks. Several base stations operating within the CDMA oriented network simultaneously receive data from the same mobile unit. A distributed algorithm operating within each of the base stations monitors the reception of the data from the mobile unit, as well as commands/instructions from other base stations. One of the base stations is appointed as a dominant base station. The appointment of a dominant base station can be done randomly or based on the quality of data being received by the base station. When the dominant base station detects a decrease in the quality of received data from the mobile unit, the dominant base station instructs the remainder of the base stations to forward any data received from the mobile to the dominant base station.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: March 4, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Thomas F. LaPorta, Ramachandran Ramjee, Krishan K. Sabnani