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).
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Publication number: 20230314138Abstract: 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: ApplicationFiled: April 4, 2022Publication date: October 5, 2023Applicants: STMicroelectronics, Inc., STMicroelectronics S.r.l.Inventors: Yamu HU, Naren K. SAHOO, Pavan NALLAMOTHU, Deyou FANG, David MCCLURE, Marco GARBARINO
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Patent number: 11520801Abstract: 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: GrantFiled: November 10, 2020Date of Patent: December 6, 2022Assignee: Bank of America CorporationInventors: Padmanabham Ponnada, Siva Chaitanya Thurlapati Venkata, Jeff L. Howard, John Popplewell, Ram Sekar, Oscar Lopez-Martinez, Igor Yago, Ramamurthy Pavan Nallamothu, Sundarrajan Raman
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Publication number: 20220147539Abstract: 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: ApplicationFiled: November 10, 2020Publication date: May 12, 2022Inventors: Padmanabham Ponnada, Siva Chaitanya Thurlapati Venkata, Jeff L. Howard, John Popplewell, Ram Sekar, Oscar Lopez-Martinez, Igor Yago, Ramamurthy Pavan Nallamothu, Sundarrajan Raman
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Publication number: 20210248128Abstract: 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: ApplicationFiled: February 11, 2020Publication date: August 12, 2021Inventors: Sundarrajan Raman, Ankita Jain, Prasad Dasari, Siva Chaitanya Thurlapati Venkata, Igor Yago, Oscar Lopez-Martinez, Ramamurthy Pavan Nallamothu, Padmanabham Ponnada, Jeff L. Howard
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Patent number: 11086848Abstract: 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: GrantFiled: February 11, 2020Date of Patent: August 10, 2021Assignee: Bank of America CorporationInventors: Sundarrajan Raman, Ankita Jain, Prasad Dasari, Siva Chaitanya Thurlapati Venkata, Igor Yago, Oscar Lopez-Martinez, Ramamurthy Pavan Nallamothu, Padmanabham Ponnada, Jeff L. Howard
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Patent number: 10649229Abstract: 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: GrantFiled: November 26, 2019Date of Patent: May 12, 2020Assignee: STMicroelectronics, Inc.Inventors: Mark A. Lysinger, Chih-Hung Tai, James L. Worley, Pavan Nallamothu
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Patent number: 10649228Abstract: 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: GrantFiled: November 25, 2019Date of Patent: May 12, 2020Assignee: STMicroelectronics, Inc.Inventors: Mark A. Lysinger, Pavan Nallamothu, Chih-Hung Tai, James L. Worley
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Publication number: 20200096784Abstract: 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: ApplicationFiled: November 26, 2019Publication date: March 26, 2020Inventors: Mark A. Lysinger, Chih-Hung Tai, James L. Worley, Pavan Nallamothu
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Publication number: 20200089021Abstract: 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: ApplicationFiled: November 25, 2019Publication date: March 19, 2020Inventors: Mark A. Lysinger, Pavan Nallamothu, Chih-Hung TAI, James L. WORLEY
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Patent number: 10541677Abstract: 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: GrantFiled: October 10, 2018Date of Patent: January 21, 2020Assignee: STMicroelectronics, Inc.Inventor: Pavan Nallamothu
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Patent number: 10527867Abstract: 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: GrantFiled: April 20, 2018Date of Patent: January 7, 2020Assignee: STMicroelectronics, Inc.Inventors: Mark A. Lysinger, Chih-Hung Tai, James L. Worley, Pavan Nallamothu
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Patent number: 10520748Abstract: 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: GrantFiled: April 3, 2018Date of Patent: December 31, 2019Assignee: STMicroelectronics, Inc.Inventors: Mark A. Lysinger, Chih-Hung Tai, James L. Worley, Pavan Nallamothu
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Patent number: 10243550Abstract: 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: GrantFiled: June 16, 2017Date of Patent: March 26, 2019Assignee: STMicroelectronics, Inc.Inventor: Pavan Nallamothu
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Publication number: 20190044502Abstract: 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: ApplicationFiled: October 10, 2018Publication date: February 7, 2019Applicant: STMicroelectronics, Inc.Inventor: Pavan Nallamothu
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Publication number: 20180367131Abstract: 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: ApplicationFiled: June 16, 2017Publication date: December 20, 2018Applicant: STMicroelectronics, Inc.Inventor: Pavan Nallamothu
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Patent number: 10128821Abstract: 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: GrantFiled: November 15, 2016Date of Patent: November 13, 2018Assignee: STMicroelectronics, Inc.Inventor: Pavan Nallamothu
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Patent number: 10075139Abstract: 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: GrantFiled: November 8, 2016Date of Patent: September 11, 2018Assignee: STMicroelectronics, Inc.Inventor: Pavan Nallamothu
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Publication number: 20180239163Abstract: 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: ApplicationFiled: April 20, 2018Publication date: August 23, 2018Inventors: Mark A. Lysinger, Chih-Hung Tai, James L. Worley, Pavan Nallamothu
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Publication number: 20180224666Abstract: 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: ApplicationFiled: April 3, 2018Publication date: August 9, 2018Inventors: Mark A. Lysinger, Chih-Hung Tai, James L. Worley, Pavan Nallamothu
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Publication number: 20180138898Abstract: 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: ApplicationFiled: November 15, 2016Publication date: May 17, 2018Applicant: STMicroelectronics, Inc.Inventor: Pavan Nallamothu