System and method for adaptive power control
First Claim
Patent Images
1. A method for providing adaptive power control, comprising:
- receiving a primary acoustic signal having a plurality of components including a noise component, the primary acoustic signal representing at least one captured sound;
performing frequency analysis on the primary acoustic signal to generate a plurality of frequency sub-bands;
estimating a power level of the noise component of the primary acoustic signal, the estimating of the power level occurring in at least one frequency sub-band of the primary acoustic signal, the estimating of the power level comprising tracking the energy of the at least one frequency sub-band of the primary acoustic signal;
comparing the power level to at least one noise threshold; and
controlling a noise suppression system based on the comparison of the power level to the at least one noise threshold, wherein the noise suppression system is configured to be powered on and off based on the comparison;
wherein controlling the noise suppression system comprises providing continuity in an output signal when the noise suppression system is powered on or off by preserving a non-zero latency introduced by the noise suppression system.
4 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for adaptive power control are provided. In exemplary embodiments, a primary signal is received. A noise power level of the primary signal is then estimated. The noise power level may then be compared to at least one power threshold. Subsequently, a large power consuming system is controlled based on the comparison of the noise power level to the power threshold.
-
Citations
15 Claims
-
1. A method for providing adaptive power control, comprising:
-
receiving a primary acoustic signal having a plurality of components including a noise component, the primary acoustic signal representing at least one captured sound; performing frequency analysis on the primary acoustic signal to generate a plurality of frequency sub-bands; estimating a power level of the noise component of the primary acoustic signal, the estimating of the power level occurring in at least one frequency sub-band of the primary acoustic signal, the estimating of the power level comprising tracking the energy of the at least one frequency sub-band of the primary acoustic signal; comparing the power level to at least one noise threshold; and controlling a noise suppression system based on the comparison of the power level to the at least one noise threshold, wherein the noise suppression system is configured to be powered on and off based on the comparison; wherein controlling the noise suppression system comprises providing continuity in an output signal when the noise suppression system is powered on or off by preserving a non-zero latency introduced by the noise suppression system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A system for providing adaptive power control, comprising:
-
a sensor configured to receive a primary acoustic signal having a plurality of components including a noise component, the primary acoustic signal representing at least one captured sound; a frequency analysis module configured to perform frequency analysis on the primary acoustic signal to generate a plurality of frequency sub-bands; a power level estimate module configured to estimate a power level of the noise component of the primary acoustic signal, the estimating of the power level occurring in at least one frequency sub-band of the primary acoustic signal, the power level estimate module tracking the energy of the at least one frequency sub-band of the primary acoustic signal; an analysis module configured to compare the power level to at least one power threshold; and a bypass engine configured to control a noise suppression system based on a result from the analysis module, wherein the noise suppression system is configured to be powered on and off based on the comparison; wherein controlling the noise suppression system comprises providing continuity in an output signal when the noise suppression system is powered on or off by preserving a non-zero latency introduced by the noise suppression system. - View Dependent Claims (10, 11, 12, 13, 14)
-
-
15. A non-transitory machine readable medium having embodied thereon a program, the program providing instructions for a method for providing adaptive power control, the method comprising:
-
receiving a primary acoustic signal having a plurality of components including a noise component, the primary acoustic signal representing at least one captured sound; performing frequency analysis on the primary acoustic signal to generate a plurality of frequency sub-bands; estimating a power level of the noise component of the primary acoustic signal, the estimating of the power level occurring in at least one frequency sub-band of the primary acoustic signal, the estimating of the power level comprising tracking the energy of the at least one frequency sub-band of the primary acoustic signal; comparing the power level to at least one power threshold; and controlling a noise suppression system based on the comparison of the power level to the at least one power threshold, wherein the noise suppression system is configured to be powered on and off based on the comparison; wherein controlling the noise suppression system comprises providing continuity in an output signal when the noise suppression system is powered on or off by preserving a non-zero latency introduced by the noise suppression system.
-
Specification