Patents by Inventor SESHAGIRI NADENDLA

SESHAGIRI NADENDLA 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: 10715073
    Abstract: The present invention relates to a Robot Electronics Unit (REU) motor controller board (MCB) with a trapezoid wave design, which can utilize power efficiently and reduce electromagnetic interference. The MCB uses a modulator or Buck Converter to regulate the voltage before it is passed to the motors used in robotic arms in space applications. The REU MCB includes: a commutator disposed on the MCB and connected to a three-phase induction motor; and a modulator disposed on the MCB and which precedes the commutator, the modulator which utilizes pulse width modulation (PWM) to regulate a voltage to the commutator and provide a predetermined current to the commutator. The modulator regulates the voltage by stepping it down from a 100V power input signal before the voltage is passed to the motor. The output of the modulator includes a trapezoid waveform design which controls the motor and reduces electromagnetic interference.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: July 14, 2020
    Assignee: United States of America as represented by the Administrator of NASA
    Inventors: Ireneusz Orlowski, Pietro A. Sparacino, Seshagiri Nadendla, Roger M. Chiei, David J. Petrick
  • Patent number: 10075678
    Abstract: Disclosed is a satellite payload device, including a plurality of sensors configured to detect images of a satellite, a video distribution and storage unit configured to collect, compress, store, and transmit the images, and a control computer configured to request a portion of the plurality of sensors from which to receive sensor data that is routed to the video distribution and storage unit.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: September 11, 2018
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Madhusudhan Kadari, Sergey Svoysky, Seshagiri Nadendla
  • Publication number: 20180234664
    Abstract: Disclosed is a satellite payload device, including a plurality of sensors configured to detect images of a satellite, a video distribution and storage unit configured to collect, compress, store, and transmit the images, and a control computer configured to request a portion of the plurality of sensors from which to receive sensor data that is routed to the video distribution and storage unit.
    Type: Application
    Filed: February 14, 2017
    Publication date: August 16, 2018
    Inventors: MADHUSUDHAN KADARI, SERGEY SVOYSKY, SESHAGIRI NADENDLA