Patents by Inventor Rajesh Narwal

Rajesh Narwal 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: 12613274
    Abstract: An assembly for detecting a structural defect in a semiconductor die is provided. The assembly includes a defect-detection sensor and a microcontroller. The defect-detection sensor includes a plurality of resistive paths of electrical-conductive material in the semiconductor die, each of which has a first end and a second end and extends proximate a perimeter of the semiconductor die. The defect-detection sensor includes a plurality of signal-generation structures, each coupled to a respective resistive path and configured to supply a test signal to the resistive path. The microcontroller is configured to control the signal-generation structures to generate the test signals, acquire the test signals in each resistive paths, test an electrical feature of the resistive paths by performing an analysis of the test signals acquired and detect the presence of the structural defect in the semiconductor die based on a result of the analysis of the test signals acquired.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: April 28, 2026
    Assignees: STMICROELECTRONICS S.r.l., STMicroelectronics International N.V.
    Inventors: Mauro Giacomini, Fabio Enrico Carlo Disegni, Rajesh Narwal, Pravesh Kumar Saini, Mayankkumar Hareshbhai Niranjani
  • Publication number: 20260072076
    Abstract: An example circuit and an electrical system utilizing test control circuitry to manage the transmission of electrical test signals between an integrated circuit and a main board are provided. The circuit includes test control circuitry configured to selectively transmit electrical test signals between an IC and a pad interface based on a plurality of asynchronous electrical supplies, at least one of which exceeds a maximum voltage rating of the test control circuitry. The test control circuitry includes first and second switching stage circuitry enabling electrical flow through the circuit based on first and second asynchronous electrical supply voltages. Intermediate biasing circuitry further defines an intermediate voltage between the first switching stage circuitry and the second switching stage circuitry.
    Type: Application
    Filed: September 10, 2024
    Publication date: March 12, 2026
    Inventors: Rik PAUL, Rajesh NARWAL
  • Patent number: 12519387
    Abstract: An example power management unit utilizing an example circuit to disable a voltage regulator is provided. The example circuit includes a voltage selection circuit and a power-down switching device. The voltage selection circuit configured to receive a first voltage source and a second voltage source to output a selected voltage based on the higher of the two input voltages. The voltage selection circuit utilizes a first transistor electrically connected in parallel with a second transistor between the first voltage source and the second voltage source to generate the selected voltage. The second transistor gate voltage at the second transistor gate is generated based at least in part on a voltage at the first transistor drain. The selected voltage is generated based on a voltage at the second transistor drain. The power-down switching device is configured to generate a voltage for a voltage regulator based on the selected voltage.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: January 6, 2026
    Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
    Inventors: Mayankkumar Hareshbhai Niranjani, Rik Paul, Rajesh Narwal
  • Patent number: 12493062
    Abstract: A supply voltage detector of an integrated circuit is able to detect the state of a supply voltage upon startup with both high-speed and low overall power consumption. The supply voltage detector includes a comparator that generates an output voltage based on the current state of the supply voltage. The comparator includes a startup current booster that generates a supplemental current for the comparator while the supply voltage is ramping up. The start of current booster stops generating the supplemental current when the supply voltage reaches the expected steady-state value or a selected fraction or portion of the expected steady-state value.
    Type: Grant
    Filed: May 31, 2023
    Date of Patent: December 9, 2025
    Assignee: STMicroelectronics International N.V.
    Inventors: Mayankkumar Hareshbhai Niranjani, Rajesh Narwal, Pravesh Kumar Saini
  • Patent number: 12487617
    Abstract: The present disclosure is directed to a fully analog voltage regulator circuit with reference modulation. The voltage regulator circuit includes a low-dropout regulator, a voltage-to-current convert, a resistor-capacitor filter circuit, and an operational amplifier voltage buffer. The voltage regulator circuit minimizes dropout voltage of the circuit by comparing the output voltage of the voltage regulator to a reference voltage and adjusting the output voltage of the op amp voltage buffer, accordingly. The voltage regulator circuit includes two operational amplifiers, wherein the negative input of a first of the two operational amplifiers is coupled to the negative input of a second of the two operational amplifiers through the resistor-capacitor filter circuit.
    Type: Grant
    Filed: May 31, 2023
    Date of Patent: December 2, 2025
    Assignee: STMicroeletronics International N.V.
    Inventors: Rajesh Narwal, Shashwat
  • Patent number: 12203982
    Abstract: Circuits and methods for testing voltage monitor circuits are provided. In one embodiment, a method includes setting voltage monitor circuits to test mode; setting, a monitor reference in each voltage monitor circuit, to a respective targeted threshold voltage using a corresponding trim code; ramping, a voltage provided to a subset of voltage monitor circuits, from a first voltage to a second voltage using a test voltage supply, voltages between the first voltage and the second voltage corresponding with targeted threshold voltages of the subset of voltage monitor circuits; determining, for each voltage monitor circuit in the subset of voltage monitor circuits, a voltage value of the test voltage supply resulting in a change in a logic state at an output of a corresponding voltage monitor circuit.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: January 21, 2025
    Assignee: STMicroelectronics International N.V.
    Inventors: Rajesh Narwal, Venkata Narayanan Srinivasan, Srinivas Dhulipalla
  • Publication number: 20240413742
    Abstract: An example power management unit utilizing an example circuit to disable a voltage regulator is provided. The example circuit includes a voltage selection circuit and a power-down switching device. The voltage selection circuit configured to receive a first voltage source and a second voltage source to output a selected voltage based on the higher of the two input voltages. The voltage selection circuit utilizes a first transistor electrically connected in parallel with a second transistor between the first voltage source and the second voltage source to generate the selected voltage. The second transistor gate voltage at the second transistor gate is generated based at least in part on a voltage at the first transistor drain. The selected voltage is generated based on a voltage at the second transistor drain. The power-down switching device is configured to generate a voltage for a voltage regulator based on the selected voltage.
    Type: Application
    Filed: June 9, 2023
    Publication date: December 12, 2024
    Inventors: Mayankkumar HARESHBHAI NIRANJANI, Rik PAUL, Rajesh NARWAL
  • Publication number: 20240402738
    Abstract: The present disclosure is directed to a fully analog voltage regulator circuit with reference modulation. The voltage regulator circuit includes a low-dropout regulator, a voltage-to-current convert, a resistor-capacitor filter circuit, and an operational amplifier voltage buffer. The voltage regulator circuit minimizes dropout voltage of the circuit by comparing the output voltage of the voltage regulator to a reference voltage and adjusting the output voltage of the op amp voltage buffer, accordingly. The voltage regulator circuit includes two operational amplifiers, wherein the negative input of a first of the two operational amplifiers is coupled to the negative input of a second of the two operational amplifiers through the resistor-capacitor filter circuit.
    Type: Application
    Filed: May 31, 2023
    Publication date: December 5, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Rajesh Narwal, Shashwat
  • Publication number: 20240405538
    Abstract: A supply voltage detector of an integrated circuit is able to detect the state of a supply voltage upon startup with both high-speed and low overall power consumption. The supply voltage detector includes a comparator that generates an output voltage based on the current state of the supply voltage. The comparator includes a startup current booster that generates a supplemental current for the comparator while the supply voltage is ramping up. The start of current booster stops generating the supplemental current when the supply voltage reaches the expected steady-state value or a selected fraction or portion of the expected steady-state value.
    Type: Application
    Filed: May 31, 2023
    Publication date: December 5, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Mayankkumar HARESHBHAI NIRANJANI, Rajesh NARWAL, Pravesh Kumar SAINI
  • Patent number: 11827706
    Abstract: Provided herein are methods of treating B7-H1-expressing tumors comprising administering an effective amount of MEDI4736 or an antigen-binding fragment thereof.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: November 28, 2023
    Inventors: Rajesh Narwal, David Fairman, Paul Robbins, Meina Liang, Amy Schneider, Carlos Chavez, Carina Herl, Min Pak, Hong Lu, Marlon Rebelatto, Keith Steele, Anmarie Boutrin, Li Shi, Shengyan Hong, Brandon Higgs, Lorin Roskos
  • Patent number: 11726514
    Abstract: An active compensation circuit for compensating the stability of a regulator is provided. The active compensation circuit presents an equivalent capacitance and an equivalent resistance and compensates stability of system using the equivalent capacitance and the equivalent resistance. The regulator includes a power transistor that receives a driving signal and channelize the required current to the Ips driven by this block. The regulator's stability is compensated using the active compensation circuit to provide an accurate output voltage without significantly compromising the accuracy (load regulation) and area of the system.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: August 15, 2023
    Assignee: STMicroelectronics International N.V.
    Inventors: Shashwat, Rajesh Narwal
  • Publication number: 20230168300
    Abstract: An assembly for detecting a structural defect in a semiconductor die is provided. The assembly includes a defect-detection sensor and a microcontroller. The defect-detection sensor includes a plurality of resistive paths of electrical-conductive material in the semiconductor die, each of which has a first end and a second end and extends proximate a perimeter of the semiconductor die. The defect-detection sensor includes a plurality of signal-generation structures, each coupled to a respective resistive path and configured to supply a test signal to the resistive path. The microcontroller is configured to control the signal-generation structures to generate the test signals, acquire the test signals in each resistive paths, test an electrical feature of the resistive paths by performing an analysis of the test signals acquired and detect the presence of the structural defect in the semiconductor die based on a result of the analysis of the test signals acquired.
    Type: Application
    Filed: November 8, 2022
    Publication date: June 1, 2023
    Applicants: STMICROELECTRONICS S.r.l., STMicroelectronics International N.V.
    Inventors: Mauro GIACOMINI, Fabio Enrico Carlo DISEGNI, Rajesh NARWAL, Pravesh Kumar SAINI, Mayankkumar HARESHBHAI NIRANJANI
  • Publication number: 20230115328
    Abstract: Provided herein are methods of treating non-small cell lung cancers comprising administering an effective amount of MEDI4736 or an antigen-binding fragment thereof and tremelimumab or an antigen-binding fragment thereof.
    Type: Application
    Filed: August 9, 2022
    Publication date: April 13, 2023
    Inventors: RAJESH NARWAL, PAUL ROBBINS, JOYSON KARAKUNNEL, MOHAMMED DAR
  • Publication number: 20220350357
    Abstract: An active compensation circuit for compensating the stability of a regulator is provided. The active compensation circuit presents an equivalent capacitance and an equivalent resistance and compensates stability of system using the equivalent capacitance and the equivalent resistance. The regulator includes a power transistor that receives a driving signal and channelize the required current to the Ips driven by this block. The regulator's stability is compensated using the active compensation circuit to provide an accurate output voltage without significantly compromising the accuracy (load regulation) and area of the system.
    Type: Application
    Filed: April 27, 2021
    Publication date: November 3, 2022
    Inventors: Shashwat, Rajesh Narwal
  • Patent number: 11446377
    Abstract: Provided herein are methods of treating non-small cell lung cancers comprising administering an effective amount of MEDI4736 or an antigen-binding fragment thereof and tremelimumab or an antigen-binding fragment thereof.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: September 20, 2022
    Assignee: MEDIMMUNE, LLC
    Inventors: Rajesh Narwal, Paul Robbins, Joyson Karakunnel, Mohammed Dar
  • Publication number: 20220276302
    Abstract: Circuits and methods for testing voltage monitor circuits are provided. In one embodiment, a method includes setting voltage monitor circuits to test mode; setting, a monitor reference in each voltage monitor circuit, to a respective targeted threshold voltage using a corresponding trim code; ramping, a voltage provided to a subset of voltage monitor circuits, from a first voltage to a second voltage using a test voltage supply, voltages between the first voltage and the second voltage corresponding with targeted threshold voltages of the subset of voltage monitor circuits; determining, for each voltage monitor circuit in the subset of voltage monitor circuits, a voltage value of the test voltage supply resulting in a change in a logic state at an output of a corresponding voltage monitor circuit.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 1, 2022
    Inventors: Rajesh Narwal, Venkata Narayanan Srinivasan, Srinivas Dhulipalla
  • Patent number: 11340292
    Abstract: Circuits and methods for testing voltage monitor circuits are provided. In one embodiment, a method includes setting voltage monitor circuits to test mode; setting, a monitor reference in each voltage monitor circuit, to a respective targeted threshold voltage using a corresponding trim code; ramping, a voltage provided to a subset of voltage monitor circuits, from a first voltage to a second voltage using a test voltage supply, voltages between the first voltage and the second voltage corresponding with targeted threshold voltages of the subset of voltage monitor circuits; determining, for each voltage monitor circuit in the subset of voltage monitor circuits, a voltage value of the test voltage supply resulting in a change in a logic state at an output of a corresponding voltage monitor circuit.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: May 24, 2022
    Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
    Inventors: Rajesh Narwal, Venkata Narayanan Srinivasan, Srinivas Dhulipalla
  • Publication number: 20210171639
    Abstract: Provided herein are methods of treating B7-H1-expressing tumors comprising administering an effective amount of MEDI4736 or an antigen-binding fragment thereof.
    Type: Application
    Filed: October 16, 2020
    Publication date: June 10, 2021
    Inventors: RAJESH NARWAL, DAVID FAIRMAN, PAUL ROBBINS, MEINA LIANG, AMY SCHNEIDER, CARLOS CHAVEZ, CARINA HERL, MIN PAK, HONG LU, MARLON REBELATTO, KEITH STEELE, ANMARIE BOUTRIN, LI SHI, SHENGYAN HONG, BRANDON HIGGS, LORIN ROSKOS
  • Patent number: 10996266
    Abstract: Circuits and methods for testing voltage monitor circuits are provided. In an embodiment, an integrated circuit (IC) includes power management unit (PMU), a set-reset (S-R) latch circuit, a multiplexer, and an AND gate circuit. A voltage monitor circuit of the PMU generates an output signal based on a difference between a received reference voltage and a received sense voltage from a functional supply. A power on reset (PoR) generator of the PMU generates a PoR signal based on a power up condition of the PMU. The S-R latch circuit generates an enable signal based on the output signal of the comparator circuit and the PoR signal. The multiplexer passes-through the output signal of the comparator circuit during a functional condition of the PMU. The AND gate circuit generates an enable signal based on an output of the multiplexer and an output of the S-R latch circuit.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: May 4, 2021
    Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
    Inventors: Venkata Narayanan Srinivasan, Rajesh Narwal, Srinivas Dhulipalla
  • Publication number: 20210041496
    Abstract: Circuits and methods for testing voltage monitor circuits are provided. In an embodiment, an integrated circuit (IC) includes power management unit (PMU), a set-reset (S-R) latch circuit, a multiplexer, and an AND gate circuit. A voltage monitor circuit of the PMU generates an output signal based on a difference between a received reference voltage and a received sense voltage from a functional supply. A power on reset (PoR) generator of the PMU generates a PoR signal based on a power up condition of the PMU. The S-R latch circuit generates an enable signal based on the output signal of the comparator circuit and the PoR signal. The multiplexer passes-through the output signal of the comparator circuit during a functional condition of the PMU. The AND gate circuit generates an enable signal based on an output of the multiplexer and an output of the S-R latch circuit.
    Type: Application
    Filed: August 9, 2019
    Publication date: February 11, 2021
    Inventors: Venkata Narayanan Srinivasan, Rajesh Narwal, Srinivas Dhulipalla