Patents by Inventor Siva RaghuRam Prasad Chennupati

Siva RaghuRam Prasad Chennupati 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: 10788577
    Abstract: A linear actuator includes a piston, a transmitter, and a receiver. The piston is configured to linearly extend and retract (such as within a cover tube). The transmitter is configured to generate a transmit electromagnetic waveform and direct the transmit electromagnetic waveform along a length of the piston. The receiver is configured to receive a return electromagnetic waveform that includes the transmit electromagnetic waveform after travelling to an extended end of the piston and returning to the receiver and determine a position of the piston based on a phase difference between the transmit electromagnetic waveform and the return electromagnetic waveform.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: September 29, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Markus Dietl, Siva RaghuRam Prasad Chennupati
  • Patent number: 10775327
    Abstract: An exhaust gas sensing system includes a channel for flow of exhaust gas, a first directional antenna, a second directional antenna, a first transmitter, a first receiver, and signal processing circuitry. The first directional antenna and the second directional antenna are disposed in the channel. The first transmitter is coupled to the first directional antenna. The first receiver is coupled to the second directional antenna. The signal processing circuitry is coupled to the first transmitter and the first receiver.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: September 15, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Siva RaghuRam Prasad Chennupati, Sandeep Tallada
  • Publication number: 20200182680
    Abstract: An ultrasonic system provides an inexpensive non-invasive way to measure fuel levels in a metal fuel tank that reduces noise from tank vibration. A first transducer generates a first signal that can be used to determine fuel levels in the tank. A second transducer placed on a chassis generates a second signal that corresponds to the noise. A differential amplifier then subtracts the second signal from the first signal, producing a cleaner signal result for determining fuel levels.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 11, 2020
    Inventors: Siva RaghuRam Prasad CHENNUPATI, Sandeep TALLADA
  • Patent number: 10673120
    Abstract: In described examples, a radio frequency (RF) resonator including a cavity and a tuning component, where the cavity includes a resonance property that can be changed in response to the tuning component. A transmitter generates an RF signal at each of a set of determined frequencies for transmitting individually within the cavity. A receiver receives the RF signal transmitted individually at each of the determined frequencies and determines a respective amplitude for each of the determined frequencies.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: June 2, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Siva RaghuRam Prasad Chennupati
  • Publication number: 20190204431
    Abstract: A linear actuator includes a piston, a transmitter, and a receiver. The piston is configured to linearly extend and retract (such as within a cover tube). The transmitter is configured to generate a transmit electromagnetic waveform and direct the transmit electromagnetic waveform along a length of the piston. The receiver is configured to receive a return electromagnetic waveform that includes the transmit electromagnetic waveform after travelling to an extended end of the piston and returning to the receiver and determine a position of the piston based on a phase difference between the transmit electromagnetic waveform and the return electromagnetic waveform.
    Type: Application
    Filed: December 29, 2017
    Publication date: July 4, 2019
    Inventors: Markus DIETL, Siva RaghuRam Prasad CHENNUPATI
  • Publication number: 20190002025
    Abstract: A system comprises: a radio frequency (RF) resonator comprising a cavity and a tuning element, the cavity having at least one port, and the tuning element having a length inside the cavity; a processor; a spectrum analyzer coupled to the at least one port, the spectrum analyzer to provide to the processor values of a resonance parameter, the resonance parameter indicative of a resonant wavelength of the RF resonator; and an automotive steering mechanism coupled to the tuning element.
    Type: Application
    Filed: December 29, 2017
    Publication date: January 3, 2019
    Inventors: Siva RaghuRam Prasad CHENNUPATI, Sandeep TALLADA
  • Publication number: 20180348152
    Abstract: An exhaust gas sensing system includes a channel for flow of exhaust gas, a first directional antenna, a second directional antenna, a first transmitter, a first receiver, and signal processing circuitry. The first directional antenna and the second directional antenna are disposed in the channel. The first transmitter is coupled to the first directional antenna. The first receiver is coupled to the second directional antenna. The signal processing circuitry is coupled to the first transmitter and the first receiver.
    Type: Application
    Filed: January 30, 2018
    Publication date: December 6, 2018
    Inventors: Siva RaghuRam Prasad Chennupati, Sandeep Tallada
  • Publication number: 20180331412
    Abstract: In described examples, a radio frequency (RF) resonator including a cavity and a tuning component, where the cavity includes a resonance property that can be changed in response to the tuning component. A transmitter generates an RF signal at each of a set of determined frequencies for transmitting individually within the cavity. A receiver receives the RF signal transmitted individually at each of the determined frequencies and determines a respective amplitude for each of the determined frequencies.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 15, 2018
    Inventor: Siva RaghuRam Prasad Chennupati
  • Patent number: 10006946
    Abstract: A system is provided, comprising: a magnet flux sensor; a first conductor proximate to the magnetic field sensor; a current controller coupled to the first wire; a second conductor proximate to the magnetic field sensor; wherein the first current controller and the second current controller ensure that current do not travel in opposite directions.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: June 26, 2018
    Assignee: Texas Instruments Incorporated
    Inventor: Siva RaghuRam Prasad Chennupati
  • Patent number: 9214939
    Abstract: Termination impedance of a digital signal bus is adaptively selected as a function of a present or anticipated state of the bus. A variable termination resistor is arranged in series between a termination switch and a common voltage node at the termination end of each bus conductor. Information regarding the current or anticipated bus state is received from an external device such as a bus controller or may be derived by sensing activity on the bus. For example, clock frequency detection logic coupled to clock lines of the bus senses the current operational speed of the bus. A highest-value termination resistance predetermined to be consistent with reliable bus operation under conditions of the current or anticipated bus state is selected for each bus conductor. A bus conductor termination may be taken to a high impedance state by opening the associated termination switch. Decreased average bus power consumption may result.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: December 15, 2015
    Assignee: TEXAS INSTRUMENTS DEUTSCHLAND GmbH
    Inventors: Markus Dietl, Sotirios Tambouris, Siva RaghuRam Prasad Chennupati
  • Publication number: 20150338444
    Abstract: Improved current sensing methods and apparatus and conductor apparatus are presented for sensing current in a bus bar or other conductor using one or more circular magnetic sensors or multiple magnetic sensors disposed on a substrate in a pattern surrounding a longitudinal path within the outer periphery of the conductor to avoid or mitigate sensed magnetic field crosstalk and to facilitate use of high sensitivity magnetic sensors at locations inside the conductor periphery in which the magnetic field is relatively small.
    Type: Application
    Filed: July 30, 2015
    Publication date: November 26, 2015
    Inventors: Mikhail Valeryevich Ivanov, Siva RaghuRam Prasad Chennupati, Viola Schaffer
  • Publication number: 20150323585
    Abstract: A system is provided, comprising: a magnet flux sensor; a first conductor proximate to the magnetic field sensor; a current controller coupled to the first wire; a second conductor proximate to the magnetic field sensor; wherein the first current controller and the second current controller ensure that current do not travel in opposite directions.
    Type: Application
    Filed: May 29, 2014
    Publication date: November 12, 2015
    Inventor: Siva RaghuRam Prasad Chennupati
  • Patent number: 9176203
    Abstract: Improved current sensing methods and apparatus and conductor apparatus are presented for sensing current in a bus bar or other conductor using one or more circular magnetic sensors or multiple magnetic sensors disposed on a substrate in a pattern surrounding a longitudinal path within the outer periphery of the conductor to avoid or mitigate sensed magnetic field crosstalk and to facilitate use of high sensitivity magnetic sensors at locations inside the conductor periphery in which the magnetic field is relatively small.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 3, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Mikhail Valeryevich Ivanov, Siva RaghuRam Prasad Chennupati, Viola Schaffer
  • Publication number: 20150155867
    Abstract: Termination impedance of a digital signal bus is adaptively selected as a function of a present or anticipated state of the bus. A variable termination resistor is arranged in series between a termination switch and a common voltage node at the termination end of each bus conductor. Information regarding the current or anticipated bus state is received from an external device such as a bus controller or may be derived by sensing activity on the bus. For example, clock frequency detection logic coupled to clock lines of the bus senses the current operational speed of the bus. A highest-value termination resistance predetermined to be consistent with reliable bus operation under conditions of the current or anticipated bus state is selected for each bus conductor. A bus conductor termination may be taken to a high impedance state by opening the associated termination switch. Decreased average bus power consumption may result.
    Type: Application
    Filed: July 10, 2014
    Publication date: June 4, 2015
    Inventors: Markus Dietl, Sotirios Tambouris, Siva RaghuRam Prasad Chennupati
  • Publication number: 20140218018
    Abstract: Improved current sensing methods and apparatus and conductor apparatus are presented for sensing current in a bus bar or other conductor using one or more circular magnetic sensors or multiple magnetic sensors disposed on a substrate in a pattern surrounding a longitudinal path within the outer periphery of the conductor to avoid or mitigate sensed magnetic field crosstalk and to facilitate use of high sensitivity magnetic sensors at locations inside the conductor periphery in which the magnetic field is relatively small.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 7, 2014
    Applicants: TEXAS INSTRUMENTS DEUTSCHLAND GMBH, TEXAS INSTRUMENTS INCORPORATED
    Inventors: Mikhail Valeryevich Ivanov, Siva RaghuRam Prasad Chennupati, Viola Schaffer