Patents by Inventor Kempraju G.

Kempraju G. 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: 11115068
    Abstract: A system for data-based pre-distortion for a nonlinear power amplifier includes a digital pre-distortion (DPD) component, including a DPD processor and a DPD calibration engine, where the DPD processor applies a set of DPD coefficients to a digital baseband data signal, to generate a pre-distorted digital baseband data signal for conversion to a radio frequency (RF) signal and amplification by a nonlinear power amplifier (PA) to generate an RF output signal, where the DPD calibration engine compares a digitized, down-converted version of the RF output signal with the digital baseband data signal, to determine distortion coefficients of the nonlinear PA, and to update the set of pre-distortion coefficients in the DPD processor to compensate for the distortion coefficients of the non-linear PA, where data transmission is uninterrupted by the transmission of non-data calibration signals.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: September 7, 2021
    Assignee: Cypress Semiconductor Corporation
    Inventors: Sudhir Kumar Kasargod, Ayush Sood, Kempraju G
  • Publication number: 20210203369
    Abstract: A system for data-based pre-distortion for a nonlinear power amplifier includes a digital pre-distortion (DPD) component, including a DPD processor and a DPD calibration engine, where the DPD processor applies a set of DPD coefficients to a digital baseband data signal, to generate a pre-distorted digital baseband data signal for conversion to a radio frequency (RF) signal and amplification by a nonlinear power amplifier (PA) to generate an RF output signal, where the DPD calibration engine compares a digitized, down-converted version of the RF output signal with the digital baseband data signal, to determine distortion coefficients of the nonlinear PA, and to update the set of pre-distortion coefficients in the DPD processor to compensate for the distortion coefficients of the non-linear PA, where data transmission is uninterrupted by the transmission of non-data calibration signals.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 1, 2021
    Inventors: Sudhir Kumar Kasargod, Ayush Sood, Kempraju G
  • Patent number: 10893483
    Abstract: A system and method are provided for extending range of devices in a legacy wireless network. Generally, the method involves providing in a transmitter of the system a frame having a first field including a number of preamble segments and a second field including a number of data segments. The transmitter in the system is then operated to transmit at least one of the preamble segments with at least a first transmit power, and to transmit the segments of the second field at a second transmit power, wherein the first transmit power is greater than the second transmit power. Other embodiments are also described.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: January 12, 2021
    Assignee: Cypress Semiconductor Corporation
    Inventors: Ayush Sood, Ashok Nimmala, Kempraju G, Kamesh Medapalli
  • Publication number: 20200084729
    Abstract: A system and method are provided for extending range of devices in a legacy wireless network. Generally, the method involves providing in a transmitter of the system a frame having a first field including a number of preamble segments and a second field including a number of data segments. The transmitter in the system is then operated to transmit at least one of the preamble segments with at least a first transmit power, and to transmit the segments of the second field at a second transmit power, wherein the first transmit power is greater than the second transmit power. Other embodiments are also described.
    Type: Application
    Filed: November 1, 2019
    Publication date: March 12, 2020
    Applicant: Cypress Semiconductor Corporation
    Inventors: Ayush Sood, Ashok Nimmala, Kempraju G, Kamesh Medapalli
  • Patent number: 10499346
    Abstract: A system and method are provided for extending range of devices in a legacy wireless network. Generally, the method involves providing in a transmitter of the system a frame having a first field including a number of preamble segments and a second field including a number of data segments. The transmitter in the system is then operated to transmit at least one of the preamble segments with at least a first transmit power, and to transmit the segments of the second field at a second transmit power, wherein the first transmit power is greater than the second transmit power. Other embodiments are also described.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: December 3, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Ayush Sood, Ashok Nimmala, Kempraju G, Kamesh Medapalli
  • Publication number: 20190306806
    Abstract: A system and method are provided for extending range of devices in a legacy wireless network. Generally, the method involves providing in a transmitter of the system a frame having a first field including a number of preamble segments and a second field including a number of data segments. The transmitter in the system is then operated to transmit at least one of the preamble segments with at least a first transmit power, and to transmit the segments of the second field at a second transmit power, wherein the first transmit power is greater than the second transmit power. Other embodiments are also described.
    Type: Application
    Filed: March 20, 2019
    Publication date: October 3, 2019
    Applicant: Cypress Semiconductor Corporation
    Inventors: Ayush Sood, Ashok Nimmala, Kempraju G., Kamesh Medapalli