Patent · US Active

Methods and apparatus for adaptive gain control in a communication system

US11798576B2 · kind B2 · utility

0Cited by

7References

20Claims

0Family size

Assignee

CERENCE OPERATING COMPANY · US

Inventors

Tobias Herbig · Ulm, DE
Meik Pfeffinger · Ulm, DE
Bernd Iser · Ulm, DE

Key dates

Filing date	Nov 1, 2019
Grant date	Oct 24, 2023
Priority date	—
Expiry date	May 8, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2499/13
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Methods and apparatus for a communication system having microphones and loudspeakers to determine a noise and speech level estimate for a transformed signal, determine a SNR from the noise and speech level estimates, and determine a gain for the transformed signal to achieve a selected SNR range at a given position. In one embodiment, the gain is determined by adapting an actual gain to follow a target gain, wherein the target gain is adjusted to achieve the selected SNR range.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.