Patents by Inventor Prasanth Logaraman

Prasanth Logaraman 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).

  • Microphone array auto-directive adaptive wideband beamforming using orientation information from MEMS sensors
    Patent number: 10979805
    Abstract: A method and apparatus for auto-directive adaptive beamforming for a microphone array using microelectromechanical systems (MEMS) sensor orientation information are provided. The microphone array captures audio and the MEMS sensor detects an orientation of the microphone array. A direction of arrival of a source signal is estimated based on the data representative of the audio. A change in an orientation of the microphone array is detected based on the orientation and the direction of arrival is compensates based on the change in the orientation of the microphone array. The apparatus pre-steers a beam of a beam pattern of the microphone array based on the compensated direction of arrival to retain the source signal in a broadside of the microphone array and performs adaptive wideband beamforming to null one or more interfering sources in the beam pattern while retaining the source signal in the broadside of the microphone array.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: April 13, 2021
    Assignees: STMicroelectronics, Inc., STMicroelectronics International N.V.
    Inventors: Mahesh Chowdhary, Prasanth Logaraman, Arun Kumar, Rajendar Bahl
  • MICROPHONE ARRAY AUTO-DIRECTIVE ADAPTIVE WIDEBAND BEAMFORMING USING ORIENTATION INFORMATION FROM MEMS SENSORS
    Publication number: 20190208318
    Abstract: A method and apparatus for auto-directive adaptive beamforming for a microphone array using microelectromechanical systems (MEMS) sensor orientation information are provided. The microphone array captures audio and the MEMS sensor detects an orientation of the microphone array. A direction of arrival of a source signal is estimated based on the data representative of the audio. A change in an orientation of the microphone array is detected based on the orientation and the direction of arrival is compensates based on the change in the orientation of the microphone array. The apparatus pre-steers a beam of a beam pattern of the microphone array based on the compensated direction of arrival to retain the source signal in a broadside of the microphone array and performs adaptive wideband beamforming to null one or more interfering sources in the beam pattern while retaining the source signal in the broadside of the microphone array.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Mahesh Chowdhary, Prasanth Logaraman, Arun Kumar, Rajendar Bahl