Patents by Inventor Shailendra Kumar

Shailendra 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).

  • Publication number: 20190146543
    Abstract: A bandgap voltage reference is provided in quasi-parallel with a resistor in the input path of a digital input circuit. Because of the quasi-parallel nature, the current used by the digital input circuit is limited to an amount based on the value of the external resistor. The input current is split between circuitry used to provide the logic signal across the selected isolation barrier and a sink transistor so that the current remains constant. This allows the digital input circuit to accurately limit input current without needing field-side power.
    Type: Application
    Filed: June 4, 2018
    Publication date: May 16, 2019
    Inventors: Shailendra Kumar BARANWAL, Anant Shankar KAMATH
  • Patent number: 10281946
    Abstract: A bandgap voltage reference is provided in quasi-parallel with a resistor in the input path of a digital input circuit. Because of the quasi-parallel nature, the current used by the digital input circuit is limited to an amount based on the value of the external resistor. The input current is split between circuitry used to provide the logic signal across the selected isolation barrier and a sink transistor so that the current remains constant. This allows the digital input circuit to accurately limit input current without needing field-side power.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: May 7, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Shailendra Kumar Baranwal, Anant Shankar Kamath
  • Publication number: 20190097517
    Abstract: In an embodiment, an adaptive drive strength switching converter includes a driver and a control loop coupled to the driver. In an embodiment, the control loop includes a peak detector, a comparator coupled to an output of the peak detector, a counter coupled to an output of the comparator, and a digital-to-analog converter (DAC) coupled to an output of the comparator.
    Type: Application
    Filed: September 22, 2017
    Publication date: March 28, 2019
    Inventors: Shailendra Kumar BARANWAL, William Todd HARRISON, Yogesh Kumar RAMADASS
  • Publication number: 20190089261
    Abstract: In described examples, an isolated DC-DC converter includes: an input node for receiving an input voltage; a transformer including a primary side having first and second terminals and a primary side ground; and first and second low-side switches. The first low-side switch is coupled between the first terminal and the primary side ground. The second low-side switch is coupled between the second terminal and the primary side ground. A first voltage is across the first low-side switch, and a second voltage is across the second low-side switch. Also, the isolated DC-DC converter includes first and second high-side switches. The first high-side switch is coupled between the first terminal and the input node and is configured to be activated by a voltage at the second terminal. The second high-side switch is coupled between the second terminal and the input node and is configured to be activated by a voltage at the first terminal.
    Type: Application
    Filed: December 29, 2017
    Publication date: March 21, 2019
    Inventors: Maurizio Granato, Giavanni Frattini, Shailendra Kumar Baranwal
  • Publication number: 20190089263
    Abstract: In described examples, an isolated DC-DC converter includes an input node for receiving an input voltage, and a transformer including a primary side having first and second terminals and a ground. First and second high-side switches are coupled between the input node and the first and second terminals, respectively. A first low-side switch is coupled between the first terminal and the ground, and through a first voltage limiter to be activated by a voltage at the second terminal. A second low-side switch is coupled between the second terminal and the ground, and through a second voltage limiter to be activated by a voltage at the first terminal A switch controller controls the high-side switches so that voltages across the high-side switches are alternatingly zero, using a current through the primary side to alternatingly charge one terminal to an input voltage and discharge the other terminal to a ground voltage.
    Type: Application
    Filed: December 29, 2017
    Publication date: March 21, 2019
    Inventors: Maurizio Granato, Giavanni Frattini, Shailendra Kumar Baranwal
  • Publication number: 20190042012
    Abstract: A substrate includes: a plurality of wiring patterns arranged to face each other; an electronic component that is disposed between the wiring patterns and has electrodes at both end portions; and a conductive member that connects the wiring patterns to the electrodes, wherein the wiring patterns have such a shape that a distance between the wiring patterns changes in a region where the electronic component is disposed.
    Type: Application
    Filed: June 28, 2018
    Publication date: February 7, 2019
    Applicant: FUJITSU COMPONENT LIMITED
    Inventors: Ayumu AKABANE, Tsuyoshi KANDA, Shailendra Kumar SHAH, Fumio TAKEI
  • Publication number: 20180336287
    Abstract: Disclosed is a system for retrieving user specific results upon execution of a query. A search request receiving module receives a first search request comprising a search string and metadata of a client machine associated to a user. In one aspect, the metadata may be received upon executing a service component on the client machine in order to collect metadata associated to the client machine. The metadata is collected based on a set of parameters. A keyword determining module determines a first set of keywords from the metadata upon analyzing each parameter of the set of parameters. A search request forwarding module forwards a second search request comprising a second set of keywords to a search server. A search result module receives search results upon execution of the second search request by the search server and thereby displays the search results on a display unit belongs to the client machine.
    Type: Application
    Filed: May 21, 2018
    Publication date: November 22, 2018
    Inventors: Shailendra Kumar ROHILLA, Navin SAINI
  • Patent number: 10090769
    Abstract: An electronic device, which includes an H-bridge circuit and a miniaturized transformer that is coupled to operate at VHF frequency, and a driver circuit for an n-type power transistor of the H-bridge circuit are disclosed. The driver circuit includes a first p-type transistor and an n-type transistor coupled between an upper rail and a lower rail, with an output taken between the drains of the first p-type transistor and the n-type transistor being coupled to a gate of the n-type power transistor. The driver circuit also includes a sample-and-hold capacitor coupled to capture a drain voltage for the first n-type power transistor on a first edge of a control signal for the first n-type power transistor and a comparator coupled to compare the captured drain voltage to a lower rail on a given edge of a clock signal and to provide a comparator value.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: October 2, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Shailendra Kumar Baranwal, Maurizio Granato, Giovanni Frattini
  • Publication number: 20180278140
    Abstract: One example includes a switch circuit. The switch circuit includes a transistor configured to activate in response to an activation voltage at an activation terminal of the transistor. The switch circuit also includes a current source coupled to the activation terminal and being configured to generate an activation current. The switch circuit further includes a driver control circuit interconnecting the activation terminal and a voltage rail. The driver control circuit includes digital counter logic configured to cycle through a predetermined number of count values based on an oscillator signal. The driver control circuit is configured to adjust an amplitude of the activation voltage at each of the predetermined number of count values based on the activation current to provide a soft-start activation of the transistor.
    Type: Application
    Filed: May 30, 2018
    Publication date: September 27, 2018
    Inventors: SHAILENDRA KUMAR BARANWAL, ALAN STEPHEN BASS, VIGHNESH RUDRA DAS, ANANT SHANKAR KAMATH, ABHIJEETH AAREY PREMANATH
  • Patent number: 10058604
    Abstract: The present application relates to novel HIV-1 envelope glycoproteins which may be utilized as an HIV-1 vaccine immunogens, antigens for crystallization and for the identification of broad neutralizing antibodies. The present invention encompasses the preparation and purification of immunogenic compositions which are formulated into the vaccines of the present invention.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: August 28, 2018
    Assignees: International AIDS Vaccine Initiative, The Scripps Research Institute
    Inventors: Richard Wyatt, Andrew Ward, Karen Tran, Shailendra Kumar, Jidnyasa Ingale, Javier Guenaga, Yu Feng, Viktoriya Dubrovskaya, Natalia de Val Alda
  • Patent number: 10014760
    Abstract: One example includes a switch circuit. The switch circuit includes a transistor configured to activate in response to an activation voltage at an activation terminal of the transistor. The switch circuit also includes a current source coupled to the activation terminal and being configured to generate an activation current. The switch circuit further includes a driver control circuit interconnecting the activation terminal and a voltage rail. The driver control circuit includes digital counter logic configured to cycle through a predetermined number of count values based on an oscillator signal. The driver control circuit is configured to adjust an amplitude of the activation voltage at each of the predetermined number of count values based on the activation current to provide a soft-start activation of the transistor.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: July 3, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Shailendra Kumar Baranwal, Alan Stephen Bass, Vighnesh Rudra Das, Anant Shankar Kamath, Abhijeeth Aarey Premanath
  • Patent number: 9994515
    Abstract: The present invention relates to substituted aryl naphthyl methanone oximes of general formula (I), their process for preparation and their derivatives, salts, pharmaceutical composition thereof and their use in treatment of chronic myelogenous leukemia, acute myelogenous leukemia, lymphoma, multiple myeloma, solid tumor forming cell-lines including such as breast cancer, endometrial cancer colon cancer, prostate cancer and killing of drug resistant cancer stem cells, as subject in need thereof.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: June 12, 2018
    Assignee: Council of Scientific & Industrial Research
    Inventors: Sabyasachi Sanyal, Atul Kumar, Naibedya Chattopadhyay, Jawahar Lal, Arun Kumar Trivedi, Dipak Datta, Srikanta Kumar Rath, Tahseen Akhtar, Shailendra Kumar Dhar Dwivedi, Manisha Yadav, Bandana Chakravarti, Abhishek Kumar Singh, Jay Sharan Mishra, Nidhi Singh, Anil Kumar Tripathi
  • Publication number: 20180152109
    Abstract: An electronic device, which includes an H-bridge circuit and a miniaturized transformer that is coupled to operate at VHF frequency, and a driver circuit for an n-type power transistor of the H-bridge circuit are disclosed. The driver circuit includes a first p-type transistor and an n-type transistor coupled between an upper rail and a lower rail, with an output taken between the drains of the first p-type transistor and the n-type transistor being coupled to a gate of the n-type power transistor. The driver circuit also includes a sample-and-hold capacitor coupled to capture a drain voltage for the first n-type power transistor on a first edge of a control signal for the first n-type power transistor and a comparator coupled to compare the captured drain voltage to a lower rail on a given edge of a clock signal and to provide a comparator value.
    Type: Application
    Filed: November 29, 2016
    Publication date: May 31, 2018
    Inventors: Shailendra Kumar Baranwal, Maurizio Granato, Giovanni Frattini
  • Patent number: 9931394
    Abstract: The present application relates to novel HIV-1 envelope glycoproteins which may be utilized as an HIV-1 vaccine immunogens, antigens for crystallization and for the identification of broad neutralizing antibodies. The present invention encompasses the preparation and purification of immunogenic compositions which are formulated into the vaccines of the present invention.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: April 3, 2018
    Assignees: International AIDS Vaccine Initiative, The Scripps Research Institute
    Inventors: Shailendra Kumar Sharma, Richard Wyatt
  • Publication number: 20180091034
    Abstract: One example includes a switch circuit. The switch circuit includes a transistor configured to activate in response to an activation voltage at an activation terminal of the transistor. The switch circuit also includes a current source coupled to the activation terminal and being configured to generate an activation current. The switch circuit further includes a driver control circuit interconnecting the activation terminal and a voltage rail. The driver control circuit includes digital counter logic configured to cycle through a predetermined number of count values based on an oscillator signal. The driver control circuit is configured to adjust an amplitude of the activation voltage at each of the predetermined number of count values based on the activation current to provide a soft-start activation of the transistor.
    Type: Application
    Filed: December 30, 2016
    Publication date: March 29, 2018
    Inventors: SHAILENDRA KUMAR BARANWAL, ALAN STEPHEN BASS, VIGHNESH RUDRA DAS, ANANT SHANKAR KAMATH, ABHIJEETH AAREY PREMANATH
  • Publication number: 20180078248
    Abstract: A surgical tool system. Various embodiments of the surgical tool system may comprise surgical instrument that has a handle assembly that operably supports a drive system therein for generating drive motions upon actuation of a movable handle portion operably coupled to the handle assembly. An elongated body protrudes from the handle assembly and operably supports a control rod therein that interfaces with the drive system. The surgical tool system further includes at least two surgical tools selected from the group of surgical tools consisting of: manipulators, nippers, scissors, endocutters, tissue thickness measurement devices, staple appliers, clip appliers, syringes for applying glue, sealant, drugs or medicaments and cauterization devices wherein each of the surgical tool within the group of surgical tools at least has a housing that is removably couplable to the elongated body and a drive assembly that is removably couplable to the control rod for receiving the drive motions therefrom.
    Type: Application
    Filed: November 6, 2017
    Publication date: March 22, 2018
    Inventors: Jeffrey S. Swayze, Thomas W. Huitema, Glen A. Armstrong, Shailendra Kumar Parihar, Donna L. Korvick, Richard W. Timm, Frederick E. Shelton, IV, Kevin R. Doll, Bret W. Smith, William D. Kelly, Ronald J. Kolata, Joshua R. Uth, Charles J. Scheib, Eugene L. Timperman
  • Publication number: 20180073682
    Abstract: An apparatus, system and method for measuring quantity of a material are disclosed. One or more sensors are used to measure the quantity of the material are measured and error causing parameters are also measured. Error causing parameters are processed by executing one or more correction methodologies to determine a correction output. The quantity of the material is measured by using the correction output. One or values associated with the quantity of the material are measured and displayed. The one or more values are transmitted to a server and informative messages are received from the server.
    Type: Application
    Filed: November 15, 2017
    Publication date: March 15, 2018
    Inventor: Shailendra Kumar Suman
  • Patent number: 9831716
    Abstract: An apparatus according to various embodiments may detect the state of an external switch. An apparatus according to various embodiments may activate or deactivate an appliance based on the state of the external switch. An apparatus according to various embodiments may activate or deactivate an appliance based on the state of the external switch, even in the absence of grid power.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: November 28, 2017
    Inventor: Shailendra Kumar Suman
  • Publication number: 20170279489
    Abstract: Techniques for processing, storing, and using vectoring coefficients in a wireline communication system are disclosed. A wireline device selects victim-disturber specific parameters corresponding to a pair of digital subscriber line (DSL) lines and a subset of tones used to communicate data over the pair of DSL lines and downsamples, based at least in part on a downsampling parameter of the victim-disturber specific parameters, a set of vectoring coefficients. Each set of vectoring coefficients is quantized, and then a set of change values for each set of downsampled and quantized vectoring coefficients is compressed. The set of change values represent a difference between the downsampled and quantized vectoring coefficients across the subset of tones. The wireline device uses the compressed sets of change values to perform vectoring over the DSL lines.
    Type: Application
    Filed: March 21, 2017
    Publication date: September 28, 2017
    Inventors: Shailendra Kumar Singh, Amitkumar Mahadevan, Laurent Francis Alloin, Avadhani Shridhar
  • Patent number: 9719270
    Abstract: Disclosed is a car parking assembly (100). In one aspect, the car parking assembly (100) comprises a rail mechanism (104) and a plurality of V-bars (106) mounted on the rail mechanism (104) to facilitate the parking of a car and horizontal movement of a parked car respectively. The rail mechanism (104) further comprises a first rail (202), a second rail (204) and a plurality of equally spaced connection. The V-bars (106) further comprises a first bar (502) for facilitating parking of a rear wheel of the car and a second bar (506) for facilitating parking of a front wheel of the car and wherein one end of the first bar (502) and one end of the second bar (506) are connected such that to form a obtuse angle.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: August 1, 2017
    Assignee: HCL Technologies Limited
    Inventors: Shailendra Kumar Rohilla, Shivani Tomar, Navin Saini