Patents by Inventor Shashi KIRAN

Shashi KIRAN 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: 10202884
    Abstract: Methods and systems are provided related to an emissions control system. The emissions control system has an exhaust after-treatment system defining a plurality of distinct exhaust flow passages through which at least a portion of an exhaust stream can flow, e.g., the exhaust stream is produced by an engine. The emissions control system also includes a controller for controlling injection of reductant into the exhaust stream flowing through each of the flow passages. In one example, the emissions control system is configured for use in a vehicle, such as a locomotive or other rail vehicle.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: February 12, 2019
    Assignee: GE Global Sourcing LLC
    Inventors: Jessica Lynn Plummer, Gail Leroy Detar, Shashi Kiran, Shridhar Shrikant Kulkarni, Lawrence Heverley, III
  • Patent number: 10200064
    Abstract: Systems and methods for performing a parity check on encoded data are disclosed. Encoded data is received. A parity check is performed based on a parity check matrix. In response to determining the first parity check is successful, a parity check number is incremented. Additional parity checks are selectively performed on subsequent portions of the array based on comparing the incremented parity check number to a threshold.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: February 5, 2019
    Assignee: Marvell International Ltd.
    Inventors: Nedeljko Varnica, Viet-Dzung Nguyen, Shashi Kiran Chilappagari
  • Publication number: 20180363533
    Abstract: Methods and systems are provided related to an emissions control system. The emissions control system has an exhaust after-treatment system defining a plurality of distinct exhaust flow passages through which at least a portion of an exhaust stream can flow, e.g., the exhaust stream is produced by an engine. The emissions control system also includes a controller for controlling injection of reductant into the exhaust stream flowing through each of the flow passages. In one example, the emissions control system is configured for use in a vehicle, such as a locomotive or other rail vehicle.
    Type: Application
    Filed: August 8, 2018
    Publication date: December 20, 2018
    Inventors: Jessica Lynn Plummer, Gail Leroy Detar, Shashi Kiran, Shridhar Shrikant Kulkarni, Lawrence Heverley, III
  • Patent number: 10153786
    Abstract: A decoding method decodes data iteratively according to a first rule, measures at a selected iteration at least one performance criterion of the decoding of data according to the first rule, performs at the selected iteration a comparison of the at least one performance criterion to a threshold, when the comparison yields a first result relative to the threshold, continues decoding according to the first rule, and when the comparison yields a second result relative to the threshold, continues decoding according to a further rule. Decoding apparatus operates according to the method. The decoding according to the first rule, the measuring at least one performance criterion at the selected iteration, the performing the comparison at the selected iteration, and the continuing decoding according to the first or further rule, may be repeated until the comparison yields a predetermined result. Repeating may be stopped after a predetermined maximum number of iterations.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: December 11, 2018
    Assignee: Marvell International Ltd.
    Inventors: Phong Sy Nguyen, Shashi Kiran Chilappagari
  • Patent number: 10125648
    Abstract: Various embodiments for an exhaust gas treatment device for a vehicle system are provided. In one example, the vehicle system includes an engine with a longitudinal axis, where a crankshaft of the engine is parallel to the longitudinal axis and an exhaust gas treatment device mounted on the engine, vertically above the engine such that a longitudinal axis of the exhaust gas treatment device is aligned in parallel with the longitudinal axis of the engine, the exhaust gas treatment device configured to receive exhaust gas from an exhaust manifold of the engine.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: November 13, 2018
    Assignee: General Electric Company
    Inventors: Paul Lloyd Flynn, James Edward Arner, Shishir Tiwari, Shashi Kiran
  • Patent number: 10100721
    Abstract: Various systems are provided for supporting an exhaust gas treatment system vertically above an engine in an engine system. In one example, an engine system includes an engine; a support structure including a base and a plurality of mounting legs, a first end of each mounting leg of the plurality of mounting legs coupled to the base and an opposite, second end of each mounting leg of at least a portion of the plurality of mounting legs coupled to the engine, where at least three mounting legs of the plurality of mounting legs and the base form two triangles within a same plane of the support structure; and an exhaust gas treatment system positioned vertically above and mounted on the engine via the support structure.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: October 16, 2018
    Assignee: General Electric Company
    Inventors: Shishir Tiwari, Douglas C. Hofer, Shashi Kiran, Jessica Lynn Plummer, Shridhar Shrikant Kulkarni
  • Patent number: 10084480
    Abstract: Systems and methods are provided for decoding a codeword of a low density parity check (LDPC) code. The systems and methods may include receiving a vector corresponding to the codeword encoded with a parity check matrix, and processing a first portion of the received vector with a first portion of the parity check matrix to obtain a decoding estimate of a first portion of the codeword. The systems and methods may further include processing the decoding estimate of the first portion of the codeword with a second portion of the parity check matrix to obtain an intermediate vector, and processing a second portion of the received vector with a third portion of the parity check matrix and the intermediate vector to obtain a decoding estimate of a second portion of the codeword.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 25, 2018
    Assignee: Marvell International Ltd.
    Inventors: Dung Viet Nguyen, Nedeljko Varnica, Shashi Kiran Chilappagari
  • Patent number: 10072554
    Abstract: Methods and systems are provided related to an emissions control system. The emissions control system has an exhaust after-treatment system defining a plurality of distinct exhaust flow passages through which at least a portion of an exhaust stream can flow, e.g., the exhaust stream is produced by an engine. The emissions control system also includes a controller for controlling injection of reductant into the exhaust stream flowing through each of the flow passages. In one example, the emissions control system is configured for use in a vehicle, such as a locomotive or other rail vehicle.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: September 11, 2018
    Assignee: General Electric Company
    Inventors: Jessica Lynn Plummer, Gail Leroy Detar, Shashi Kiran, Shridhar Shrikant Kulkarni, Lawrence Heverley, III
  • Patent number: 10038456
    Abstract: Systems, devices, and techniques relating to signal decoding are described. A describe device includes decoder circuitry configured to selectively update variable and check nodes to decode received information associated with a codeword, and selectively update a first group of the variable nodes and a first group of the check nodes in a first clock cycle; and look ahead circuitry configured to access, in the first clock cycle, a second group of the check nodes that are associated with a second group of the variable nodes, and generate node selection information, based on the second group of the check nodes, to indicate whether one or more variable nodes of the second group of the variable nodes are to be skipped or processed by the decoder circuitry in a second clock cycle based on their respective one or more likelihoods of being changed.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: July 31, 2018
    Assignee: MARVELL INTERNATIONAL LTD.
    Inventors: Viet-Dzung Nguyen, Shashi Kiran Chilappagari, Nedeljko Varnica
  • Publication number: 20180148677
    Abstract: Methods and systems of harvesting a cell product from a cell culture by culturing cells in a fluid medium until the cells have produced a cell product at a harvest concentration are disclosed. The cells are cultured in a cell culture system including a bioreactor connected to an ATF device. The methods include draining fluid medium from the bioreactor through the outlet and the ATF device until the bioreactor volume reaches a predetermined volume, and the ATF column yields at an ATF outlet a liquid containing cell product and passes fluid medium with a concentration of cell product that is lower than the harvest concentration back into the bioreactor, extracting the liquid containing cell product from the ATF outlet, refilling the bioreactor with sterile phosphate buffered saline or fluid medium without any cell product, and repeating steps until a desired amount of cell product has been removed.
    Type: Application
    Filed: July 25, 2017
    Publication date: May 31, 2018
    Inventors: Shashi Kiran Kudugunti, WengLong Roy Lin, John Bonham-Carter, James R. Rusche
  • Publication number: 20170257882
    Abstract: Embodiments herein provide a method of managing grant of resources to a plurality of user equipments in a wireless communication network. The state corresponds to idle UEs, upload UEs and download UEs. The method includes identifying a state of the plurality of UEs. Further, the method includes managing grant of resources to one or more of the upload UEs and the download UEs, based on an operational condition of the UEs in the wireless communication network.
    Type: Application
    Filed: May 11, 2016
    Publication date: September 7, 2017
    Inventors: Venkatesh Anantrao Desai, Shashi Kiran Rao Soogoori
  • Patent number: 9755665
    Abstract: System and methods described herein includes a method for iterative decoding. The method includes instantiating an iterative decoding procedure to decode a codeword. At each iteration of the iterative decoding procedure, the method further includes retrieving information relating to a plurality of current decoding variables at a current iteration, determining a first current decoding variable to be skipped for the current iteration based on the information, and processing a second decoding variable without processing the first decoding variable to update related decoding variables from the plurality of current decoding variables.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: September 5, 2017
    Assignee: Marvell International Ltd.
    Inventors: Shashi Kiran Chilappagari, Dung Viet Nguyen, Phong Sy Nguyen
  • Patent number: 9666080
    Abstract: A method for providing an aircraft display includes the steps of receiving an indication of a current position and altitude of the aircraft, receiving air traffic information for another aircraft within a predetermined range of the current position of the aircraft, and determining whether an element of the traffic information for the another aircraft is missing from the received air traffic information. If an element is missing, the method further includes beginning a timer to determine a length of time that the element is missing. Still further, the method includes the step of, after a predetermined time has elapsed that the element is missing according to the timer, displaying an indication of the another aircraft along with the length of time that the element is missing.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: May 30, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Vasudev Prakash Shanbhag, Sridhar Krishna, Sanjib Kumar Maji, Shashi Kiran Ravikumar
  • Patent number: 9614548
    Abstract: Systems and methods are provided for iterative data decoding. Decoding circuitry receives a first message from a variable node at a check node. Decoding circuitry generates a second message based at least in part on the first message. Decoding circuitry transmits the second message to the variable node. Decoding circuitry updates a hard decision value of the variable node based at least in part on the first message and the second message.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: April 4, 2017
    Assignee: MARVELL INTERNATIONAL LTD.
    Inventors: Dung Viet Nguyen, Shashi Kiran Chilappagari
  • Publication number: 20170067383
    Abstract: Various embodiments for an exhaust gas treatment device for a vehicle system are provided. In one example, the vehicle system includes an engine with a longitudinal axis, where a crankshaft of the engine is parallel to the longitudinal axis and an exhaust gas treatment device mounted on the engine, vertically above the engine such that a longitudinal axis of the exhaust gas treatment device is aligned in parallel with the longitudinal axis of the engine, the exhaust gas treatment device configured to receive exhaust gas from an exhaust manifold of the engine.
    Type: Application
    Filed: November 17, 2016
    Publication date: March 9, 2017
    Inventors: Paul Lloyd FLYNN, James Edward ARNER, Shishir TIWARI, Shashi KIRAN
  • Publication number: 20170058750
    Abstract: Methods and systems are provided related to an emissions control system. The emissions control system has an exhaust after-treatment system defining a plurality of distinct exhaust flow passages through which at least a portion of an exhaust stream can flow, e.g., the exhaust stream is produced by an engine. The emissions control system also includes a controller for controlling injection of reductant into the exhaust stream flowing through each of the flow passages. In one example, the emissions control system is configured for use in a vehicle, such as a locomotive or other rail vehicle.
    Type: Application
    Filed: November 14, 2016
    Publication date: March 2, 2017
    Inventors: Jessica Lynn Plummer, Gail Leroy Detar, Shashi Kiran, Shridhar Shrikant Kulkarni, Lawrence Heverley, III
  • Patent number: 9577675
    Abstract: A system including a first module, a second module and a third module. The first module is configured to generate a first parity check matrix. The second module is configured to append an appended matrix to the first parity check matrix to generate a resultant parity check matrix. The appended matrix includes additional elements. The third module is configured to receive user data and encode the user data based on the resultant parity check matrix.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: February 21, 2017
    Assignee: MARVELL INTERNATIONAL LTD.
    Inventors: Nedeljko Varnica, Dung Viet Nguyen, Shashi Kiran Chilappagari
  • Patent number: 9564931
    Abstract: Systems and methods are provided for decoding a codeword having a first codeword length using a decoding system. The systems and methods include receiving a vector corresponding to the codeword at the decoding system, wherein the decoding system comprises a first decoder and a second decoder, the first decoder is available to concurrently process codewords up to the first codeword length, and the second decoder is available to concurrently process codewords up to a second codeword length. The systems and methods further include determining that the received vector is to be decoded using the second decoder, partitioning the received vector of the first codeword length into a plurality of segments having a size no larger than the second codeword length, and decoding the plurality of segments using the second decoder.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: February 7, 2017
    Assignee: MARVELL INTERNATIONAL LTD.
    Inventors: Dung Viet Nguyen, Shashi Kiran Chilappagari, Nedeljko Varnica
  • Patent number: 9548764
    Abstract: A decoder including a compression module configured to select one or more nodes from a plurality of nodes associated with data being decoded by the decoder, where each node includes one or more bits, and to compress the one or more bits associated with the selected nodes. A memory is configured to store the compressed one or more bits associated with the selected nodes.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: January 17, 2017
    Assignee: Marvell International LTD.
    Inventors: Shashi Kiran Chilappagari, Dung Viet Nguyen
  • Patent number: 9537508
    Abstract: Systems and methods are provided for decoding a codeword of a low density parity check (LDPC) code. The systems and methods may include receiving a vector corresponding to the codeword encoded with a parity check matrix, and processing a first portion of the received vector with a first portion of the parity check matrix to obtain a decoding estimate of a first portion of the codeword. The systems and methods may further include processing the decoding estimate of the first portion of the codeword with a second portion of the parity check matrix to obtain an intermediate vector, and processing a second portion of the received vector with a third portion of the parity check matrix and the intermediate vector to obtain a decoding estimate of a second portion of the codeword.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: January 3, 2017
    Assignee: MARVELL INTERNATIONAL LTD.
    Inventors: Dung Viet Nguyen, Nedeljko Varnica, Shashi Kiran Chilappagari