Patents by Inventor Sridhar Reddy Narravula

Sridhar Reddy Narravula 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: 11764882
    Abstract: Embodiments of a calibration system for third order intermodulation distortion (IMD3) cancellation and a wireless apparatus are disclosed. In an embodiment, a calibration system for IMD3 cancellation includes a cancellation circuit for IMD3 cancellation between a first transmitter and a second transmitter, and a controller coupled to the cancellation circuit and configured to for each frequency channel of the first transmitter, perform a pre-conditional calibration of the cancellation circuit, after the pre-conditional calibration, determine a phase configuration for the cancellation circuit, and after the phase configuration for the cancellation circuit is determined, determine an attenuation configuration for the cancellation circuit.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: September 19, 2023
    Assignee: NXP USA, Inc.
    Inventors: Sai-Wang Tam, Alden C. Wong, Weiwei Xu, Yui Lin, Jue Yu, Sridhar Reddy Narravula, Dipen Bakul Parikh
  • Patent number: 11374615
    Abstract: Various embodiments relate to a cancellation circuit configured to generate a cancellation signal, including: an attenuator configured to attenuate a transmitted signal from an aggressor transmitter based upon a first attenuation value; an I/Q demodulator configured to split an attenuated signal into in-phase (I) and quadrature signals (Q); a phase interpolator configured to apply a calibration phase shift and a calibration attenuation to the I signal and Q signal and to recombine the I and Q signals; an auxiliary balun coupled to an output of the phase interpolator; and an auxiliary power amplifier with an input connected to the auxiliary balun configured to generate the cancellation signal, wherein the output of the auxiliary power amplifier is connected to an output of a victim transmitter.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: June 28, 2022
    Assignee: NXP USA, Inc.
    Inventors: Sai-Wang Tam, Alden C. Wong, Weiwei Xu, Yui Lin, Jue Yu, Sridhar Reddy Narravula, Yi-Ling Chao, Dipen Bakul Parikh
  • Patent number: 11223964
    Abstract: A dynamic temperature manager of a wireless system determines a threshold temperature defined by one or more operating parameters of the wireless system, the threshold temperature indicating a temperature in response to which power consumption of the wireless system is to be reduced. The dynamic temperature manager receives an indication of a temperature of the wireless system. A determination is made that the temperature exceeds the threshold temperature. The dynamic temperature manager provides an indication to cause a media access control (MAC) processing circuitry of the wireless system to adjust the one or more operating parameters of the wireless system to reduce the power consumption and the temperature of the wireless system based on the determination that the temperature exceeds the threshold temperature.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: January 11, 2022
    Assignee: NXP USA, Inc.
    Inventors: Arnab Kumar Mitra, Deepak Nagawade, James Kang-Wuu Jan, Rajas Ravindra Mahajan, Ashish Vijay Bhattad, Vishal Veeragandham, Yui Lin, Sridhar Reddy Narravula
  • Publication number: 20210058802
    Abstract: A dynamic temperature manager of a wireless system determines a threshold temperature defined by one or more operating parameters of the wireless system, the threshold temperature indicating a temperature in response to which power consumption of the wireless system is to be reduced. The dynamic temperature manager receives an indication of a temperature of the wireless system. A determination is made that the temperature exceeds the threshold temperature. The dynamic temperature manager provides an indication to cause a media access control (MAC) processing circuitry of the wireless system to adjust the one or more operating parameters of the wireless system to reduce the power consumption and the temperature of the wireless system based on the determination that the temperature exceeds the threshold temperature.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Inventors: Arnab Kumar Mitra, Deepak Nagawade, James Kang-Wuu Jan, Rajas Ravindra Mahajan, Ashish Vijay Bhattad, Vishal Veeragandham, Yui Lin, Sridhar Reddy Narravula