Patents by Inventor Kapil Shrikhande

Kapil Shrikhande 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: 8102902
    Abstract: A system and method is described for determining a condition of a communication line, such as the absence of a filter device on a digital subscriber line (DSL). A first signal characterized by a high upstream power is activated over the line, and a first set of parameters associated with the communication line is obtained. A second signal characterized by a low upstream power is activated, and a second set of parameters associated with the communication line is obtained. Comparison of first and second sets of parameters is indicative of a condition of the connection and presences or absence of a DSL filter on the communication line.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: January 24, 2012
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Kapil Shrikhande, Ganesh Krishnamurthi, Raghvendra G. Savoor
  • Patent number: 7876815
    Abstract: Methods and apparatus to qualify a wire-pair for a digital subscriber line (DSL) service are disclosed. An example method comprises modifying a digital subscriber line (DSL) signal received on a wire-pair at a DSL modem to emulate an environmental condition, and qualifying the wire-pair for a DSL service based on a DSL connection rate achieved by the DSL modem during the emulated environmental condition.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: January 25, 2011
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Jin Wang, Kapil Shrikhande, Raghvendra Gurudath Savoor
  • Patent number: 7778192
    Abstract: A system and method to perform double-ended measurements of a network is provided. The system includes a test device that makes measurements at the customer end and a portable computing device that interfaces with the test device, a customer gateway and database at a network location to analyze the data and determine a performance metric of the network.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: August 17, 2010
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Kapil Shrikhande, Raghvendra G. Savoor, Xidong Wu, Jin Wang, John Van Slyke, Richard D. Hart
  • Publication number: 20100150546
    Abstract: A computerized system and method for managing a passive optical network (PON) is disclosed. The system includes a detection and analysis module adapted for receiving uploaded measurement data from an optical line terminal (OLT) and at least one optical network terminal (ONT), and at least one of technical tools data, service failure data, and outside plant data. The detection and analysis module is adapted for determining a source of failure or potential failure in the PON by correlating the uploaded measurement data and the at least one of technical tools data and service failure data with information stored in a memory medium for the OLT and each ONT.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 17, 2010
    Inventors: Kapil Shrikhande, Kent George McCammon, Kevin Xiangkai Meng, Raghvendra Savoor
  • Patent number: 7729477
    Abstract: The present disclosure provides a system and method for detecting faults related to lines linked to provide network services. The method includes storing a synthetic value for the performance of a line, receiving a measured value of a performance parameter of the line measured at a customer end and comparing the synthetic value with the measured value to determine if a fault condition exists.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: June 1, 2010
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Kapil Shrikhande, Sam Cauble, Stuart L. Blackburn, Raghvendra G. Savoor
  • Publication number: 20100118844
    Abstract: System(s) and method(s) that facilitate dynamic remote management of consumer premise devices comprising femtocells integrated into broadband gateways are presented. A communication network platform is associated with a consumer premise device(s) and can include a remote management component that facilitates dynamic and remote management of consumer premise devices in a wireless communication network. The remote management component monitors and measures desired parameters respectively associated with a consumer premise devices and employs remote controls to remotely adjust parameters based on predetermined optimization criteria. The remote management component calculates channel capacity based on measured channel signal-to-noise ratio to facilitate determining whether to hand off a current cell to another cell, wherein at least one cell is associated with a consumer premise device.
    Type: Application
    Filed: November 12, 2008
    Publication date: May 13, 2010
    Applicant: AT&T INTELLECTUAL PROPERTY I, LP
    Inventors: Hua JIAO, Raghvendra SAVOOR, Kapil SHRIKHANDE
  • Publication number: 20100064314
    Abstract: An Internet protocol television system includes a server that records content on a set-top box, determines storage capacity utilization, and when utilization is greater than a threshold, prompts to select other content on the storage device to be deleted.
    Type: Application
    Filed: September 11, 2008
    Publication date: March 11, 2010
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Jian Li, Zhi Li, Kapil Shrikhande
  • Patent number: 7593833
    Abstract: A method for determining performance of data communication lines in a DSL network is provided. The method includes determining a performance metric for at least one line from a first set of data that included measurements for each of a plurality of parameters related to the at least one line; establishing a benchmark utilizing a second set of measurements that includes at least one additional measurement for the plurality of parameters; and comparing the performance metric with the benchmark to determine the performance of the at least one line.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: September 22, 2009
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Raghvendra G. Savoor, Xidong Wu, Stuart L. Blackburn, Kapil Shrikhande
  • Publication number: 20090225821
    Abstract: Methods and apparatus to detect an imbalanced subscriber line in a digital subscriber line (DSL) system are disclosed. An example method comprises identifying a contiguous set of performance parameters in a plurality of performance parameters for respective ones of a plurality of DSL sub-carriers of a subscriber line associated with a DSL modem, the identified set have values representative of degraded performance and corresponding to an operating frequency of a geographically proximate AM interference source. The example method further comprises comparing a number of DSL sub-carriers contained in the identified set with a threshold to determine whether the subscriber line has an imbalanced condition.
    Type: Application
    Filed: March 4, 2008
    Publication date: September 10, 2009
    Inventors: Hua Jiao, Jin Wang, Kapil Shrikhande
  • Publication number: 20090201976
    Abstract: A system and method is described for determining a condition of a communication line, such as the absence of a filter device on a digital subscriber line (DSL). A first signal characterized by a high upstream power is activated over the line, and a first set of parameters associated with the communication line is obtained. A second signal characterized by a low upstream power is activated, and a second set of parameters associated with the communication line is obtained. Comparison of first and second sets of parameters is indicative of a condition of the connection and presences or absence of a DSL filter on the communication line.
    Type: Application
    Filed: April 14, 2009
    Publication date: August 13, 2009
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Kapil Shrikhande, Ganesh Krishnamurthi, Raghvendra G. Savoor
  • Patent number: 7519110
    Abstract: A system and method is described for determining a condition of a communication line, such as the absence of a filter device on a digital subscriber line (DSL). A first signal characterized by a high upstream power is activated over the line, and a first set of parameters associated with the communication line is obtained. A second signal characterized by a low upstream power is activated, and a second set of parameters associated with the communication line is obtained. Comparison of first and second sets of parameters is indicative of a condition of the connection and presences or absence of a DSL filter on the communication line.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: April 14, 2009
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Kapil Shrikhande, Ganesh Krishnamurthi, Raghvendra G. Savoor
  • Publication number: 20090074155
    Abstract: Methods and apparatus to test a subscriber line for a broadband access service are disclosed. An example network interface device (NID) comprises a tone generator to transmit a tone on a subscriber line to characterize the subscriber line while a DSL modem is providing a DSL service via the subscriber line, the tone having a frequency occurring within a range of frequencies in use by the DSL modem to provide the DSL service, and a pair of terminals to couple the DSL modem and the tone generator to the subscriber line.
    Type: Application
    Filed: September 19, 2007
    Publication date: March 19, 2009
    Inventors: Jin Wang, Kapil Shrikhande
  • Publication number: 20090064248
    Abstract: Systems and methods of monitoring packet delivery are disclosed. In an embodiment, a method is disclosed that includes querying multiple network devices for performance metrics corresponding to video data packets sent from a video server. The network devices may include multicast branching points between the video server and the destination. A delivery failure may be identified based on the performance metrics, and a response to the delivery failure may be initiated.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 5, 2009
    Applicant: AT&T Knowledge Ventures, LP
    Inventors: Dick Kwan, Zhi Li, Raghvendra Savoor, Kapil Shrikhande
  • Publication number: 20080285635
    Abstract: Methods and apparatus to qualify a wire-pair for a digital subscriber line (DSL) service are disclosed. An example method comprises modifying a digital subscriber line (DSL) signal received on a wire-pair at a DSL modem to emulate an environmental condition, and qualifying the wire-pair for a DSL service based on a DSL connection rate achieved by the DSL modem during the emulated environmental condition.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 20, 2008
    Inventors: Jin Wang, Kapil Shrikhande, Raghvendra Gurudath Savoor
  • Publication number: 20080288190
    Abstract: In a particular embodiment, a method is disclosed that includes receiving data related to a customer premise equipment (CPE) device and determining an impedance mismatch between a transmission line and the CPE device based on the received data. The method further includes initiating removal of a source of the impedance mismatch in response to determining the impedance mismatch.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 20, 2008
    Applicant: AT&T Knowledge Ventures, LP
    Inventors: Jin Wang, Kapil Shrikhande, Richard D. Hart, Raghvendra Savoor
  • Patent number: 7388906
    Abstract: In a particular embodiment a method of collecting and processing modem data is provided. The method includes, during training of a broadband modem, sending a series of tones within a frequency transmission band of the broadband modem, receiving the transmitted series of tones at a receiving broadband modem, receiving a measurement value, determining a transmission loss for each of the series of tones by comparing the predetermined transmission power level, and the received measured power level, performing a statistical match comparison between each of the received tone signals and a plurality of different computer models of a single transmission facility having various bridge taps connected to the single transmission facility, and determining a best fit between each of the received tone signals and one of the plurality of the bridge tap computer models. The series of tones have a predetermined transmission power level.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: June 17, 2008
    Assignee: SBC Knowledge Ventures, L.P.
    Inventors: Richard Dennis Hart, Raghvendra G. Savoor, Laurie G. King, George Keith Cambron, Kapil Shrikhande
  • Publication number: 20080063399
    Abstract: Example methods and apparatus to implement communication networks using electrically conductive and optical communication media are disclosed. An example method involves receiving first communication information via a conductive communication medium and second communication information via a first optical fiber communication medium. The first communication information and the second communication information are multiplexed to form a multiplexed communication signal. The multiplexed communication signal is communicated via a second optical fiber communication medium to a subscriber distribution device.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 13, 2008
    Inventors: Arvind R. Mallya, Kapil Shrikhande
  • Publication number: 20070208537
    Abstract: A method for determining performance of data communication lines in a DSL network is provided. The method includes determining a performance metric for at least one line from a first set of data that included measurements for each of a plurality of parameters related to the at least one line; establishing a benchmark utilizing a second set of measurements that includes at least one additional measurement for the plurality of parameters; and comparing the performance metric with the benchmark to determine the performance of the at least one line.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 6, 2007
    Applicant: SBC Knowledge Ventures L.P.
    Inventors: Raghvendra Savoor, Xidong Wu, Stuart Blackburn, Kapil Shrikhande
  • Publication number: 20070195705
    Abstract: The present disclosure provides a system and method for detecting faults related to lines linked to provide network services. The method includes storing a synthetic value for the performance of a line, receiving a measured value of a performance parameter of the line measured at a customer end and comparing the synthetic value with the measured value to determine if a fault condition exists.
    Type: Application
    Filed: February 17, 2006
    Publication date: August 23, 2007
    Applicant: SBC Knowledge Ventures L.P.
    Inventors: Kapil Shrikhande, Sam Cauble, Stuart Blackburn, Raghvendra Savoor
  • Publication number: 20070121520
    Abstract: A system and method to perform double-ended measurements of a network is provided. The system includes a test device that makes measurements at the customer end and a portable computing device that interfaces with the test device, a customer gateway and database at a network location to analyze the data and determine a performance metric of the network.
    Type: Application
    Filed: November 29, 2005
    Publication date: May 31, 2007
    Applicant: SBC Knowledge Ventures L.P.
    Inventors: Kapil Shrikhande, Raghvendra Savoor, Xidong Wu, Jin Wang, John Slyke, Richard Hart