Patents by Inventor Krishnaraj Varma

Krishnaraj Varma 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: 9178683
    Abstract: A dynamic and flexible architecture and methods for demodulation of high data-rate streams with high symbol-rates, such as in satellite communications systems or computer network communications systems, is provided. A data stream of a data transmission is received, the data stream corresponding to a plurality of data symbols. A plurality of data samples corresponding to each of the data symbols is generated. Further, one or more representative data samples, corresponding each of the data symbols, are generated based at least in part on timing control signals and the generated data samples for the respective data symbol. The generated data samples corresponding to each of the data symbols other than the representative data samples are dropped. The timing control signals are then adjusted based at least in part on the generated representative data samples.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: November 3, 2015
    Assignee: Hughes Network Systems, LLC
    Inventors: Krishnaraj Varma, Tony Huang, Xiaoming Wu
  • Patent number: 8929501
    Abstract: A method and apparatus for processing input data signals transmitted in a continuous mode, or in a burst mode, of signal transmission, such as in a satellite or a computer network communications system. A receiver receives input data signals and a buffer stores the received input data. Processing circuitry generates frame timing synchronization control signals for writing the frames of the input data for storage, generates timing error control signals corresponding to a processing delay for the input data, for synchronizing reading out the stored data from the buffer based on a timing difference between the timing error control signals and the frame timing synchronization control signals to adjust for an arbitrary delay in processing the input data. The processing circuitry can include a tap gradient update circuit for generating a tap gradient corresponding to the read out data, based on equalizer error signals generated by the processing circuitry.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: January 6, 2015
    Assignee: Hughes Network Systems, LLC
    Inventors: Krishnaraj Varma, Tony Huang, Sri Bhat
  • Publication number: 20130322511
    Abstract: A method and apparatus for processing input data signals transmitted in a continuous mode, or in a burst mode, of signal transmission, such as in a satellite or a computer network communications system. A receiver receives input data signals and a buffer stores the received input data. Processing circuitry generates frame timing synchronization control signals for writing the frames of the input data for storage, generates timing error control signals corresponding to a processing delay for the input data, for synchronizing reading out the stored data from the buffer based on a timing difference between the timing error control signals and the frame timing synchronization control signals to adjust for an arbitrary delay in processing the input data. The processing circuitry can include a tap gradient update circuit for generating a tap gradient corresponding to the read out data, based on equalizer error signals generated by the processing circuitry.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 5, 2013
    Applicant: Hughes Network Systems, LLC
    Inventors: Krishnaraj Varma, Tony Huang, Sri Bhat
  • Publication number: 20130315346
    Abstract: A dynamic and flexible architecture and methods for demodulation of high data-rate streams with high symbol-rates, such as in satellite communications systems or computer network communications systems, is provided. A data stream of a data transmission is received, the data stream corresponding to a plurality of data symbols. A plurality of data samples corresponding to each of the data symbols is generated. Further, one or more representative data samples, corresponding each of the data symbols, are generated based at least in part on timing control signals and the generated data samples for the respective data symbol. The generated data samples corresponding to each of the data symbols other than the representative data samples are dropped. The timing control signals are then adjusted based at least in part on the generated representative data samples.
    Type: Application
    Filed: May 23, 2012
    Publication date: November 28, 2013
    Applicant: HUGHES NETWORK SYSTEMS, LLC
    Inventors: Krishnaraj Varma, Tony Huang, Xiaoming Wu