Back to results
US 7,010,130 B1Granted
Noise level updating system
AssigneePioneer Electronic Corporation
InventorKazuya Kinoshita
Life of this patent
Estimating the term…
Abstract
A noise level of an input signal is detected, and a detected noise level is held in a noise level holding section. The held noise level is updated when a subsequent noise level largely changes.
Claims1
A noise level updating system comprising:
- a detecting device which detects a noise level of an input signal;
- a noise level holding section for holding a noise level detected by the detecting device as a reference value;
- a determining device which determines updating of the noise level held in the noise level holding section based on a plurality of subsequent noise levels;
- and
- an updating device which updates the held noise level in accordance with determination of the determining device,
- wherein the determining device determines the updating of the held noise level when the difference between the subsequent noise levels is smaller than a predetermined value and the difference between the held noise level and an average of the subsequent noise levels is larger than a predetermined value.
3 more elements
Dependencies are inferred from the claim text.