Michael James Lester

US Patent:

20220240008, Jul 28, 2022

Filed:

Jan 27, 2022

Appl. No.:

17/586213

Inventors:

- Niles IL, US
John Casey Gibbs - Chicago IL, US
Michael Ryan Lester - Colorado Springs CO, US
Mathew T. Abraham - Colorado Springs CO, US

International Classification:

H04R 3/00

Abstract:

Hybrid audio beamforming systems and methods with narrower beams and improved directivity are provided. The hybrid audio beamforming system includes a time domain beamformer for processing upper frequency band signals of an audio signal using a time domain beamforming technique, and a frequency domain beamformer for processing groups of lower frequency band signals of the audio signal using frequency domain beamforming techniques.

US Patent:

20210266409, Aug 26, 2021

Filed:

Jan 4, 2021

Appl. No.:

17/140687

Inventors:

- Niles IL, US
Martin K. Reiling - Grayslake IL, US
Ryan Jerold Perkofski - Lake Bluff IL, US
Matthew Curtis Morrow - Chicago IL, US
Michael Ryan Lester - Colorado Springs CO, US

International Classification:

H04M 3/56
H04M 9/08
H04R 1/40
H04R 3/00

Abstract:

Systems, apparatus, and methods for processing audio signals associated with conferencing devices communicatively connected in a daisy-chain configuration using local connection ports included on each device are provided. One method involving a first conferencing device comprises receiving auxiliary mixed microphone signal(s) from at least one other conferencing device via at least one local connection port, each auxiliary signal comprising a mix of microphone signals captured by the at least one other conferencing device; determining a gain adjustment value for each auxiliary mixed microphone signal based on a daisy-chain position of the at least one other conferencing device relative to the position of the first conferencing device; adjusting a gain value for each auxiliary mixed microphone signal based on the corresponding gain adjustment value; generating a loudspeaker output signal from the gain-adjusted auxiliary mixed microphone signal(s); and providing the loudspeaker signal to the loudspeaker of the first conferencing device.

US Patent:

20200162618, May 21, 2020

Filed:

Nov 20, 2018

Appl. No.:

16/197162

Inventors:

- Niles IL, US
Martin K. Reiling - Grayslake IL, US
Ryan Jerold Perkofski - Lake Bluff IL, US
Matthew Curtis Morrow - Chicago IL, US
Michael Ryan Lester - Colorado Springs CO, US

International Classification:

H04M 3/56
H04M 9/08
H04R 1/40
H04R 3/00

Abstract:

Systems, apparatus, and methods for processing audio signals associated with conferencing devices communicatively connected in a daisy-chain configuration using local connection ports included on each device are provided. One method involving a first conferencing device comprises receiving auxiliary mixed microphone signal(s) from at least one other conferencing device via at least one local connection port, each auxiliary signal comprising a mix of microphone signals captured by the at least one other conferencing device; determining a gain adjustment value for each auxiliary mixed microphone signal based on a daisy-chain position of the at least one other conferencing device relative to the position of the first conferencing device; adjusting a gain value for each auxiliary mixed microphone signal based on the corresponding gain adjustment value; generating a loudspeaker output signal from the gain-adjusted auxiliary mixed microphone signal(s); and providing the loudspeaker signal to the loudspeaker of the first conferencing device.