Patents by Inventor Pavan Nallamothu

Pavan Nallamothu 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: 20230314138
    Abstract: At start-up of a microelectromechanical system (MEMS) gyroscope, the drive signal is inhibited, and the phase, frequency and amplitude of any residual mechanical oscillation is sensed and processed to determine a process path for start-up. In the event that the sensed frequency of the residual mechanical oscillation is a spurious mode frequency and a quality factor of the residual mechanical oscillation is sufficient, an anti-phase signal is applied as the MEMS gyroscope drive signal in order to implement an active dampening of the residual mechanical oscillation. A kicking phase can then be performed to initiate oscillation. Also, in the event that the sensed frequency of the residual mechanical oscillation is a resonant mode frequency with sufficient drive energy, a quadrature phase signal with phase lock loop frequency control and amplitude controlled by the drive energy is applied as the MEMS gyroscope drive signal in order to induce controlled oscillation.
    Type: Application
    Filed: April 4, 2022
    Publication date: October 5, 2023
    Applicants: STMicroelectronics, Inc., STMicroelectronics S.r.l.
    Inventors: Yamu HU, Naren K. SAHOO, Pavan NALLAMOTHU, Deyou FANG, David MCCLURE, Marco GARBARINO
  • Patent number: 11520801
    Abstract: A system includes an execution engine and a processor. The execution engine receives application code that, when executed, is configured to generate a second data element from a first data element that is stored in a first database and store the second element in a second database. The execution engine converts the code into an execution plan and executes it. The execution plan includes a first operation to obtain the first element from the first database, a second operation to apply a transformation to the first element, and a third operation to store the first element as the second element in the second database. The processor accesses the execution plan and determines that the third operation includes storing the second element. In response, the processor generates a data lineage for the second element by extracting, from each operation from the third to the first, a portion of the data lineage.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: December 6, 2022
    Assignee: Bank of America Corporation
    Inventors: Padmanabham Ponnada, Siva Chaitanya Thurlapati Venkata, Jeff L. Howard, John Popplewell, Ram Sekar, Oscar Lopez-Martinez, Igor Yago, Ramamurthy Pavan Nallamothu, Sundarrajan Raman
  • Publication number: 20220147539
    Abstract: A system includes an execution engine and a processor. The execution engine receives application code that, when executed, is configured to generate a second data element from a first data element that is stored in a first database and store the second element in a second database. The execution engine converts the code into an execution plan and executes it. The execution plan includes a first operation to obtain the first element from the first database, a second operation to apply a transformation to the first element, and a third operation to store the first element as the second element in the second database. The processor accesses the execution plan and determines that the third operation includes storing the second element. In response, the processor generates a data lineage for the second element by extracting, from each operation from the third to the first, a portion of the data lineage.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 12, 2022
    Inventors: Padmanabham Ponnada, Siva Chaitanya Thurlapati Venkata, Jeff L. Howard, John Popplewell, Ram Sekar, Oscar Lopez-Martinez, Igor Yago, Ramamurthy Pavan Nallamothu, Sundarrajan Raman
  • Publication number: 20210248128
    Abstract: Systems for dynamically transforming data are provided. Database data may be received and ingested into a system. Ingesting the data may include executing one or more first data governance functions, such as data quality evaluation functions, data controls, and the like. The ingested data may then be output for further processing as first processed data and first data governance information may be captured and stored. The first processed data may be processed to execute one or more data transformations. Data transformations may include calculations, formatting, derivations, and the like. In some arrangements, second data governance functions may be executed on the transformed data. The transformed data may then be output as second processed data. The system may capture second data governance information as the data is transformed. The second processed data may then be published to one or more downstream databases for use in one or more applications executed by an entity.
    Type: Application
    Filed: February 11, 2020
    Publication date: August 12, 2021
    Inventors: Sundarrajan Raman, Ankita Jain, Prasad Dasari, Siva Chaitanya Thurlapati Venkata, Igor Yago, Oscar Lopez-Martinez, Ramamurthy Pavan Nallamothu, Padmanabham Ponnada, Jeff L. Howard
  • Patent number: 11086848
    Abstract: Systems for dynamically transforming data are provided. Database data may be received and ingested into a system. Ingesting the data may include executing one or more first data governance functions, such as data quality evaluation functions, data controls, and the like. The ingested data may then be output for further processing as first processed data and first data governance information may be captured and stored. The first processed data may be processed to execute one or more data transformations. Data transformations may include calculations, formatting, derivations, and the like. In some arrangements, second data governance functions may be executed on the transformed data. The transformed data may then be output as second processed data. The system may capture second data governance information as the data is transformed. The second processed data may then be published to one or more downstream databases for use in one or more applications executed by an entity.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: August 10, 2021
    Assignee: Bank of America Corporation
    Inventors: Sundarrajan Raman, Ankita Jain, Prasad Dasari, Siva Chaitanya Thurlapati Venkata, Igor Yago, Oscar Lopez-Martinez, Ramamurthy Pavan Nallamothu, Padmanabham Ponnada, Jeff L. Howard
  • Patent number: 10649229
    Abstract: Various embodiments provide an optical image stabilization circuit including a drive circuit having a power waveform generator and a power waveform conversion circuit. The power waveform generator generates a power waveform. The power waveform conversion circuit converts the power waveform to a power drive signal. An actuator is then driven by the power drive signal to move a lens accordingly and compensate for any movements and vibrations of a housing of the lens.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: May 12, 2020
    Assignee: STMicroelectronics, Inc.
    Inventors: Mark A. Lysinger, Chih-Hung Tai, James L. Worley, Pavan Nallamothu
  • Patent number: 10649228
    Abstract: Various embodiments provide an optical image stabilization circuit including a drive circuit having a power waveform generator and a power waveform conversion circuit. The power waveform generator generates a power waveform. The power waveform conversion circuit converts the power waveform to a power drive signal. An actuator is then driven by the power drive signal to move a lens accordingly and compensate for any movements and vibrations of a housing of the lens.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: May 12, 2020
    Assignee: STMicroelectronics, Inc.
    Inventors: Mark A. Lysinger, Pavan Nallamothu, Chih-Hung Tai, James L. Worley
  • Publication number: 20200096784
    Abstract: Various embodiments provide an optical image stabilization circuit including a drive circuit having a power waveform generator and a power waveform conversion circuit. The power waveform generator generates a power waveform. The power waveform conversion circuit converts the power waveform to a power drive signal. An actuator is then driven by the power drive signal to move a lens accordingly and compensate for any movements and vibrations of a housing of the lens.
    Type: Application
    Filed: November 26, 2019
    Publication date: March 26, 2020
    Inventors: Mark A. Lysinger, Chih-Hung Tai, James L. Worley, Pavan Nallamothu
  • Publication number: 20200089021
    Abstract: Various embodiments provide an optical image stabilization circuit including a drive circuit having a power waveform generator and a power waveform conversion circuit. The power waveform generator generates a power waveform. The power waveform conversion circuit converts the power waveform to a power drive signal. An actuator is then driven by the power drive signal to move a lens accordingly and compensate for any movements and vibrations of a housing of the lens.
    Type: Application
    Filed: November 25, 2019
    Publication date: March 19, 2020
    Inventors: Mark A. Lysinger, Pavan Nallamothu, Chih-Hung TAI, James L. WORLEY
  • Patent number: 10541677
    Abstract: A voltage generator circuit uses a feedback loop to regulate an output voltage at an output node. A pair of opposite conductivity source-follower transistors are coupled to the output node. A first one of the source-follower transistors operates to provide a fast current transient for charging a capacitive load that is switchably connected to the output node. A second one of the source-follower transistor operate under feedback control to regulate the voltage level at the output node.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: January 21, 2020
    Assignee: STMicroelectronics, Inc.
    Inventor: Pavan Nallamothu
  • Patent number: 10527867
    Abstract: Various embodiments provide an optical image stabilization circuit including a drive circuit having a power waveform generator and a power waveform conversion circuit. The power waveform generator generates a power waveform. The power waveform conversion circuit converts the power waveform to a power drive signal. An actuator is then driven by the power drive signal to move a lens accordingly and compensate for any movements and vibrations of a housing of the lens.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: January 7, 2020
    Assignee: STMicroelectronics, Inc.
    Inventors: Mark A. Lysinger, Chih-Hung Tai, James L. Worley, Pavan Nallamothu
  • Patent number: 10520748
    Abstract: Various embodiments provide an optical image stabilization circuit including a drive circuit having a power waveform generator and a power waveform conversion circuit. The power waveform generator generates a power waveform. The power waveform conversion circuit converts the power waveform to a power drive signal. An actuator is then driven by the power drive signal to move a lens accordingly and compensate for any movements and vibrations of a housing of the lens.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: December 31, 2019
    Assignee: STMicroelectronics, Inc.
    Inventors: Mark A. Lysinger, Chih-Hung Tai, James L. Worley, Pavan Nallamothu
  • Patent number: 10243550
    Abstract: An electronic device includes a power switch having a control terminal coupled to a first node, a first conduction terminal coupled to a second node, and a second conduction terminal coupled to a third node. A monitoring circuit has a first input coupled to the first node and a second input coupled to the second node, the monitoring circuit to generate a monitor signal indicating gate oxide stress on the power switch as a function of first and second voltages received at the first and second inputs thereof. A protection circuit actuates to protect the power switch from the gate oxide stress when the monitor signal indicates the gate oxide stress on the power switch. The monitoring signal is generated based upon a comparison of currents generated based upon the voltages at the first and second node, as well as a current generated based upon a programmable reference voltage.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: March 26, 2019
    Assignee: STMicroelectronics, Inc.
    Inventor: Pavan Nallamothu
  • Publication number: 20190044502
    Abstract: A voltage generator circuit uses a feedback loop to regulate an output voltage at an output node. A pair of opposite conductivity source-follower transistors are coupled to the output node. A first one of the source-follower transistors operates to provide a fast current transient for charging a capacitive load that is switchably connected to the output node. A second one of the source-follower transistor operate under feedback control to regulate the voltage level at the output node.
    Type: Application
    Filed: October 10, 2018
    Publication date: February 7, 2019
    Applicant: STMicroelectronics, Inc.
    Inventor: Pavan Nallamothu
  • Publication number: 20180367131
    Abstract: An electronic device includes a power switch having a control terminal coupled to a first node, a first conduction terminal coupled to a second node, and a second conduction terminal coupled to a third node. A monitoring circuit has a first input coupled to the first node and a second input coupled to the second node, the monitoring circuit to generate a monitor signal indicating gate oxide stress on the power switch as a function of first and second voltages received at the first and second inputs thereof. A protection circuit actuates to protect the power switch from the gate oxide stress when the monitor signal indicates the gate oxide stress on the power switch. The monitoring signal is generated based upon a comparison of currents generated based upon the voltages at the first and second node, as well as a current generated based upon a programmable reference voltage.
    Type: Application
    Filed: June 16, 2017
    Publication date: December 20, 2018
    Applicant: STMicroelectronics, Inc.
    Inventor: Pavan Nallamothu
  • Patent number: 10128821
    Abstract: A voltage generator circuit uses a feedback loop to regulate an output voltage at an output node. A pair of opposite conductivity source-follower transistors are coupled to the output node. A first one of the source-follower transistors operates to provide a fast current transient for charging a capacitive load that is switchably connected to the output node. A second one of the source-follower transistor operate under feedback control to regulate the voltage level at the output node.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: November 13, 2018
    Assignee: STMicroelectronics, Inc.
    Inventor: Pavan Nallamothu
  • Patent number: 10075139
    Abstract: A low voltage to high voltage (LV2HV) conversion circuit has an input configured to receive an input signal (at a relatively low voltage) and an output configured to generate an output signal (at a relatively high voltage). The LV2HV conversion circuit includes a voltage to current conversion circuit referenced to the relatively low voltage and configured to convert a voltage of the input signal to a first current, wherein a magnitude of the first current is dependent on said voltage of the input signal and a gain setting value. A current mirroring circuit mirrors the first current and outputs a second current. A current to voltage conversion circuit converts the second current to a voltage of the output signal. The current mirroring circuit and current to voltage conversion circuit are referenced to the relatively high voltage.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 11, 2018
    Assignee: STMicroelectronics, Inc.
    Inventor: Pavan Nallamothu
  • Publication number: 20180239163
    Abstract: Various embodiments provide an optical image stabilization circuit including a drive circuit having a power waveform generator and a power waveform conversion circuit. The power waveform generator generates a power waveform. The power waveform conversion circuit converts the power waveform to a power drive signal. An actuator is then driven by the power drive signal to move a lens accordingly and compensate for any movements and vibrations of a housing of the lens.
    Type: Application
    Filed: April 20, 2018
    Publication date: August 23, 2018
    Inventors: Mark A. Lysinger, Chih-Hung Tai, James L. Worley, Pavan Nallamothu
  • Publication number: 20180224666
    Abstract: Various embodiments provide an optical image stabilization circuit including a drive circuit having a power waveform generator and a power waveform conversion circuit. The power waveform generator generates a power waveform. The power waveform conversion circuit converts the power waveform to a power drive signal. An actuator is then driven by the power drive signal to move a lens accordingly and compensate for any movements and vibrations of a housing of the lens.
    Type: Application
    Filed: April 3, 2018
    Publication date: August 9, 2018
    Inventors: Mark A. Lysinger, Chih-Hung Tai, James L. Worley, Pavan Nallamothu
  • Publication number: 20180138898
    Abstract: A voltage generator circuit uses a feedback loop to regulate an output voltage at an output node. A pair of opposite conductivity source-follower transistors are coupled to the output node. A first one of the source-follower transistors operates to provide a fast current transient for charging a capacitive load that is switchably connected to the output node. A second one of the source-follower transistor operate under feedback control to regulate the voltage level at the output node.
    Type: Application
    Filed: November 15, 2016
    Publication date: May 17, 2018
    Applicant: STMicroelectronics, Inc.
    Inventor: Pavan Nallamothu