Patents by Inventor Rajiv Kumar

Rajiv Kumar 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: 10571948
    Abstract: The invention provides systems, methods, and devices relating to the provision of system-wide coordinated control voltage regulation support in power transmission and distribution networks using multiple inverter based power generation or absorption facilities, which are coupled to the power transmission and distribution networks for minimizing transmission and distribution line losses and for performing Conservation Voltage Reduction. The invention uses a novel control method of inverter based Distributed Generators as Static Synchronous Compensator (STATCOM) in a way that provides a dynamic voltage regulation/control with the inverter capacity remaining after real power generation or absorption, thereby decreasing system line losses and performing Conservation Voltage Reduction.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: February 25, 2020
    Inventor: Rajiv Kumar Varma
  • Publication number: 20200036192
    Abstract: Systems, methods, and devices relating to operating a power generation facility to contribute to the stability of the power transmission system. A controller operates on the power generation facility to modulate real power or reactive power or both in a decoupled manner to contribute to the stability of the power transmission system. Real power produced by the power generation facility can be increased or decreased between zero and the maximum real power available from the PV solar panels, as required by the power system. Reactive power from the power generation facility can be exchanged (injected or absorbed) and both increased or decreased as required by the power transmission system. For solar farms, the solar panels can be connected or disconnected, or operated at non-optimal power production to add or subtract real or reactive power to the power transmission system.
    Type: Application
    Filed: August 15, 2019
    Publication date: January 30, 2020
    Inventor: Rajiv Kumar VARMA
  • Patent number: 10545041
    Abstract: A method of determining at least one point of entry of smoke into a smoke detection system, the system having a sampling pipe network including at least one sampling pipe and a plurality of sampling inlets through which an air sample can enter the at least one sampling pipe of the smoke detection system for analysis by a particle detector, said method including: determining a volume of sample air that has passed through at least part of the smoke detection system since a predetermined event or a value corresponding to said volume; and determining through which sampling inlet of the plurality of sampling inlets the smoke entered the smoke detection system based, at least in part, on the determined volume or value. Systems for implementing such a method and related methods are also described.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: January 28, 2020
    Assignee: Xtralis Technologies, Ltd.
    Inventors: Kemal Ajay, Ron Knox, Brian Alexander, Karl Boettger, Rajiv Kumar Singh, Thor North, Stephen James Pattinson, Peter Massingberd-Mundy
  • Patent number: 10497405
    Abstract: A memory is described. The memory includes a storage cell. The memory also includes a read bit line coupled to the storage cell. The memory also includes at least one N type pre charge transistor coupled between the read bit line and a power supply node. The at least one N type pre-charge transistor is to pre-charge the read bit line. The memory also includes at least one P type pre charge transistor that is also coupled between the read bit line and the power supply node. The at least one P type pre-charge transistor is to pre-charge the read bit line with the at least one N type transistor.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: December 3, 2019
    Assignee: Intel Corporation
    Inventors: Rajiv Kumar, Kuan Cheng Tang
  • Patent number: 10474560
    Abstract: A method and a system are described for generation of test automation scripts in real time. The method includes scanning a plurality of properties associated with objects within a user interface of an application under test. The method includes comparing the properties with a pre-stored object library. The pre-stored object library comprises metadata of pre-stored properties of the application under test. This includes identifying the updated properties associated with one or more objects from the plurality of objects based on the comparison of metadata of updated objects with the metadata of existing or pre-stored properties. This includes creating a unique XPATH reference for each of the one or more of objects based on the identified one or more updated properties. The method includes generating in real time one or more test automation scripts for each of the one or more of objects based on the unique XPATH reference.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: November 12, 2019
    Assignee: Wipro Limited
    Inventors: Surya Vorganti, Rajiv Kumar Agarwal
  • Patent number: 10460822
    Abstract: A circuit includes a bitcell array having a plurality of bitlines, and an I/O functional unit to read data stored in the bitcell array. The I/O functional unit includes a first multiplexer to select a first input port or a first bitline among a first group of bitlines, a first latch to latch the output of the first multiplexer, a second multiplexer to select a second input port or a second bitline among a second group of bitlines. The second input port is coupled to an output port of the first latch. The I/O functional unit further includes a second latch to latch the output of the second multiplexer.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: October 29, 2019
    Assignee: ARM Limited
    Inventors: Rajiv Kumar Sisodia, Renu Rawat, Paul Darren Hoxey, Vikash, Kumaraswamy Ramanathan, Sanjay Mangal, Yew Keong Chong
  • Patent number: 10431269
    Abstract: Integrated circuits with volatile random-access memory cells are provided. A memory cell may be coupled to write bit lines and a read bit line. The write bit line may not be coupled to any precharge circuitry. The read bit line may only be precharged during memory access operations. In one suitable arrangement, the read bit line may be precharge immediately after an address decoding operation and before an evaluation phase. In another suitable arrangement, the read bit line may be precharged after an addressing decoding operation and in parallel with the evaluation phase. In either arrangement, a substantial amount of leakage and active power can be reduced.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: October 1, 2019
    Assignee: Altera Corporation
    Inventors: Rajiv Kumar, Wei Yee Koay, Kuan Cheng Tang
  • Patent number: 10424935
    Abstract: Systems, methods, and devices relating to operating a power generation facility to contribute to the stability of the power transmission system. A controller operates on the power generation facility to modulate real power or reactive power or both in a decoupled manner to contribute to the stability of the power transmission system. Real power produced by the power generation facility can be increased or decreased between zero and the maximum real power available from the PV solar panels, as required by the power system. Reactive power from the power generation facility can be exchanged (injected or absorbed) and both increased or decreased as required by the power transmission system. For solar farms, the solar panels can be connected or disconnected, or operated at non-optimal power production to add or subtract real or reactive power to the power transmission system.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: September 24, 2019
    Inventor: Rajiv Kumar Varma
  • Patent number: 10404631
    Abstract: A messaging system comprising: computer storage holding messaging accounts for users of the messaging system, each comprising a user identifier of a first type; an account manager for managing the messaging accounts; a group manager configured to grant participant users access to messaging groups by creating, in the computer storage, associations between the messaging groups and the messaging accounts of the participant users; a group messaging service configured for use in transmitting and receiving messages, in each of the plurality of messaging groups, between the participant users granted access to that messaging group, using the user identifiers of the first type in their messaging accounts.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: September 3, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Teekam Chand Goyal, Nitin Jaiswal, Rajiv Kumar, Prashant Gupta, Deepak Pratinidhi, Arun Rajappa, Apoorv Seth
  • Publication number: 20190266720
    Abstract: In various implementations, a condition of one or more screens of a device may be determined. A user may select a return application that facilitates capturing image(s) of device screen(s). A user may capture images of a screen of using a camera of the same device or another device. In some implementations, the user may position the device proximate a mirror such that the device can capture an image of one or more screens of the device. The captured image(s) may be processed and/or analyzed to determine if the screen of the device is damaged. In some implementations, notifications based on the condition of the device screen(s) may be transmitted. A price for the device may be determined, in some implementations based on the condition of the screen.
    Type: Application
    Filed: May 7, 2019
    Publication date: August 29, 2019
    Applicant: Hyla, Inc.
    Inventors: Rajiv Kumar Dwivedi, Christopher Heistad, Bikramjit Singh, Karl Felix Medina, Ram Mohan Reddy, Jonathan Brian Chinn, Rebekah Jane Griffiths, Satish G. Nair, Biju Nair
  • Publication number: 20190245353
    Abstract: The invention provides a method and system for operating a solar farm inverter as a Flexible AC Transmission System (FACTS) device—a STATCOM—for voltage control. The solar farm inverter can provide voltage regulation, damping enhancement, stability improvement and other benefits provided by FACTS devices. In one embodiment, the solar farm operating as a STATCOM at night is employed to increase the connectivity of neighbouring wind farms that produce peak power at night due to high winds, but are unable to connect due to voltage regulation issues. The present invention can also operate during the day because there remains inverter capacity after real power export by the solar farm. Additional auxiliary controllers are incorporated in the solar farm inverter to enhance damping and stability, and provide other benefits provided by FACTS devices.
    Type: Application
    Filed: February 20, 2019
    Publication date: August 8, 2019
    Inventor: Rajiv Kumar VARMA
  • Publication number: 20190228821
    Abstract: A method for operating an SRAM of an FPGA in a high or low-power mode includes a CRAM of the FPGA storing control bits for controlling whether pages of the SRAM operate in the high or low-power mode. A control circuit of the FPGA uses the control bits, a system clock signal, and address for the pages to determine whether to operate the pages in the high or low-power mode and to control the timing for precharging and tristating read bitlines of the pages for the high and low-power modes. In the high-power mode the read bitlines are precharged longer than in the low-power mode, and in the high-power mode the read bitlines are tristated less than in the low-power mode. Precharging the read bitlines for a lesser time in the low-power mode reduces DC leakage current in the lower power mode compared to the high-power mode.
    Type: Application
    Filed: March 29, 2019
    Publication date: July 25, 2019
    Applicant: Intel Corporation
    Inventors: Wei Yee Koay, Rajiv Kumar, Pek Mui Goh, Kuan Cheng Tang, Wei Chieh Wong
  • Patent number: 10332249
    Abstract: In various implementations, a condition of one or more screens of a device may be determined. A user may select a return application that facilitates capturing image(s) of device screen(s). A user may capture images of a screen of using a camera of the same device or another device. In some implementations, the user may position the device proximate a mirror such that the device can capture an image of one or more screens of the device. The captured image(s) may be processed and/or analyzed to determine if the screen of the device is damaged. In some implementations, notifications based on the condition of the device screen(s) may be transmitted. A price for the device may be determined, in some implementations based on the condition of the screen.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: June 25, 2019
    Assignee: Hyla, Inc.
    Inventors: Rajiv Kumar Dwivedi, Christopher Heistad, Bikramjit Singh, Karl Felix Medina, Ram Mohan Reddy, Jonathan Brian Chinn, Rebekah Jane Griffiths, Satish G. Nair, Biju Nair
  • Publication number: 20190173823
    Abstract: In non-limiting examples of the present disclosure, systems, methods and devices for surfacing one or more location-based messaging groups are presented. Geolocation information associated with a current location of a client computing device may be sent to a group messaging service. A request to identify one or more location-based messaging groups corresponding to the current location of the client computing device may be sent from a group messaging application to the group messaging service. Information associated with one or more location-based messaging groups for which the current location of the client computing device meets a location-based threshold may be received from the group messaging service, and the one or more location-based messaging groups for which the current location of the client computing device meets the location-based surfacing threshold may be surface on a display of the client computing device.
    Type: Application
    Filed: January 22, 2018
    Publication date: June 6, 2019
    Inventors: Abhinav Mukherjee, Shantanu Prasade, Manav Mithal, Vani Sivasankar, Saumitra Agarwal, Jayram Kumar, Ravi Birhman, Andre Rodrigues, Rajiv Kumar, Prashant Gupta, Deepak Pratinidhi, Rakesh Midha, Arun Rajappa
  • Patent number: 10256635
    Abstract: The invention provides a method and system for operating a solar farm inverter as a Flexible AC Transmission System (FACTS) device—a STATCOM—for voltage control. The solar farm inverter can provide voltage regulation, damping enhancement, stability improvement and other benefits provided by FACTS devices. In one embodiment, the solar farm operating as a STATCOM at night is employed to increase the connectivity of neighboring wind farms that produce peak power at night due to high winds, but are unable to connect due to voltage regulation issues. The present invention can also operate during the day because there remains inverter capacity after real power export by the solar farm. Additional auxiliary controllers are incorporated in the solar farm inverter to enhance damping and stability, and provide other benefits provided by FACTS devices.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: April 9, 2019
    Inventor: Rajiv Kumar Varma
  • Publication number: 20190102681
    Abstract: Embodiments relate to configuring artificial-intelligence (AI) decision nodes throughout a communication decision tree. The decision nodes can support successive iteration of AI models to dynamically define iteration data that corresponds to a trajectory through the tree.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 4, 2019
    Applicant: Oracle International Corporation
    Inventors: Tara U. Roberts, Alberto Polleri, Rajiv Kumar, Ranjit Joesph Chacko, Jonathan Stanesby, Kevin Yordy
  • Publication number: 20190103140
    Abstract: A memory is described. The memory includes a storage cell. The memory also includes a read bit line coupled to the storage cell. The memory also includes at least one N type pre charge transistor coupled between the read bit line and a power supply node. The at least one N type pre-charge transistor is to pre-charge the read bit line. The memory also includes at least one P type pre charge transistor that is also coupled between the read bit line and the power supply node. The at least one P type pre-charge transistor is to pre-charge the read bit line with the at least one N type transistor.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 4, 2019
    Inventors: Rajiv KUMAR, Kuan Cheng TANG
  • Patent number: 10241898
    Abstract: The present disclosure relates to a method and a system for enabling self-maintainable test automation. In one embodiment, the system creates a test automation suite using historical test scenarios and automatically updates the test automation suite based on functional changes in one or more related applications. The system determines one or more reusable automation units and one or more test data units that are affected by the functional changes identified in test scenarios received as input and accordingly updates the one or more reusable automation units and one or more test data units. Thus, the system enables self-maintainable test automation, thereby eliminating the effort and expertise required to create automation test suite, build automation scripts, and modify automation scripts for future enhancements.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: March 26, 2019
    Assignee: Wipro Limited
    Inventor: Rajiv Kumar Agrawal
  • Patent number: 10236055
    Abstract: Integrated circuits with memory elements are provided. In particular, a group of random-access memory cells may be coupled to first and second data lines via corresponding access transistors. One of the first and second data lines can be driven to a ground voltage level to write a zero or one into a selected memory cell in the group. A first dummy data line can be formed adjacent to the first data line, whereas a second dummy data line can be formed adjacent to the second data line. During data loading operations, at least one of the dummy data lines can be pulsed to temporarily drive the voltage on the associated data line to below the ground voltage level. Operated in this way, the write operation of the memory cells can be improved.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: March 19, 2019
    Assignee: Altera Corporation
    Inventors: Rajiv Kumar, Kuan Cheng Tang
  • Publication number: 20190077933
    Abstract: The present invention discloses a single-step process for the formation of a three dimensional porous scaffold,the process comprising of carrying out ring opening polymerization of a monomer under high internal phase emulsion mode in the presence of at least one catalyst selected from methanesulfonic acid and stannous octoate to form a three dimensional porous scaffold. Further, the present invention discloses a three dimensional porous scaffold comprising of a polymer, to form a three dimensional porous scaffold having a pore size in the range of 0.1-30 micrometer and a porosity in the range of 75%-95%.
    Type: Application
    Filed: April 9, 2018
    Publication date: March 14, 2019
    Inventors: Rajiv Kumar Srivastava, Bhanu Nandan, Anilkumar Lalchand Yadav, Jit Pal