Patents by Inventor Krishnakumar RAJAGOPALAN

Krishnakumar RAJAGOPALAN 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: 20230257087
    Abstract: A wave energy converter that has waveguides affixed radially around a compression chamber to form wave channels to amplify movement of the surface of the ocean in the compression chamber is positioned a distance above a first heave plate. A dock frame is affixed to the bottom of the first heave plate, with a second heave plate comprising ramps extending radially outward and downward from the dock frame, and lobes extending radially outward from the ramps, so that the lobes define V-shaped dock frame channels between the lobes and the ramps define dock frame slots between the ramps. Charging interfaces are provided at the dock frame slots configured to receive an electrically conductive portion of an autonomous underwater vehicle. The V-shaped dock frame channels guide the autonomous underwater vehicle towards and into the dock frame slots, so that the electrically conductive portion is received by a charging interface for charging and communicating with the autonomous underwater vehicle.
    Type: Application
    Filed: November 29, 2022
    Publication date: August 17, 2023
    Inventors: NICHOLAS ULM, Jonathan Wallen, Maddyson Jeske, Krishnakumar Rajagopalan
  • Patent number: 11366855
    Abstract: Techniques for searching documents are described. An exemplary method includes receiving a document search query; querying at least one index based upon the document search query to identify matching data; fetching the identified matched data; determining one or more of a top ranked passage and top ranked documents from the set of documents based upon one or more invocations of one or more machine learning models based at least on the fetched identified matched data and the document search query; and returning one or more of the top ranked passage and the proper subset of documents.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: June 21, 2022
    Assignee: Amazon Technologies, Inc.
    Inventors: Jean-Pierre Dodel, Zhiheng Huang, Xiaofei Ma, Ramesh M. Nallapati, Krishnakumar Rajagopalan, Milan Saini, Sudipta Sengupta, Saurabh Kumar Singh, Dimitrios Soulios, Ankit Sultania, Dong Wang, Zhiguo Wang, Bing Xiang, Peng Xu, Yong Yuan
  • Patent number: 11314819
    Abstract: Techniques for intaking one or more documents are described. An exemplary method includes receiving an ingestion request to ingest a document; extracting text from the document; pre-processing the extracted text to generate pre-processed text that is predictable and analyzable; generating an index entry for the extracted text, the index entry to map the extracted text to a reserved field of a plurality of reserved fields; and storing the extracted text, index entry, and pre-processed text in at least one data storage location.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: April 26, 2022
    Assignee: Amazon Technologies, Inc.
    Inventors: Jared Lee Katzman, Nithin Kunala, Bing Xiang, Krishnakumar Rajagopalan, Andrew M. Grant
  • Publication number: 20210157845
    Abstract: Techniques for searching documents are described. An exemplary method includes receiving a document search query; querying at least one index based upon the document search query to identify matching data; fetching the identified matched data; determining one or more of a top ranked passage and top ranked documents from the set of documents based upon one or more invocations of one or more machine learning models based at least on the fetched identified matched data and the document search query; and returning one or more of the top ranked passage and the proper subset of documents.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 27, 2021
    Inventors: Jean-Pierre DODEL, Zhiheng HUANG, Xiaofei MA, Ramesh M. NALLAPATI, Krishnakumar RAJAGOPALAN, Milan SAINI, Sudipta SENGUPTA, Saurabh Kumar SINGH, Dimitrios SOULIOS, Ankit SULTANIA, Dong WANG, Zhiguo WANG, Bing XIANG, Peng XU, Yong YUAN
  • Publication number: 20210157861
    Abstract: Techniques for intaking one or more documents are described.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 27, 2021
    Inventors: Jared Lee KATZMAN, Nithin KUNALA, Bing XIANG, Krishnakumar RAJAGOPALAN, Andrew M. GRANT