US 11,747,192 B2 · Acoustic sensor assembly and method of sensing sound using the same

Abstract

An acoustic sensor assembly includes a non-directional acoustic sensor having a first directional pattern, a plurality of directional acoustic sensors surrounding the non-directional acoustic sensor and including a plurality of resonators having different resonance frequencies from each other, each of the plurality of directional acoustic sensors having a second directional pattern, and a processor configured to obtain output signals from the non-directional acoustic sensor and the plurality of directional acoustic sensors. The processor is further configured to calculate an acoustic signal having directivity by selecting any one or any combination of the obtained output signals or selectively combining the obtained output signals, and obtain sound around the acoustic sensor assembly, using the calculated acoustic signal.

Claims20

Dependent claims

An acoustic sensor assembly comprising:

a non-directional acoustic sensor having a first directional pattern;
a plurality of directional acoustic sensors surrounding the non-directional acoustic sensor and comprising a plurality of resonators having different resonance frequencies from each other, each of the plurality of directional acoustic sensors having a second directional pattern;
and
a processor configured to:
obtain output signals from the non-directional acoustic sensor and the plurality of directional acoustic sensors;
calculate an acoustic signal having directivity by combining each of the obtained output signals based on ratios of a signal level output by the non-directional acoustic sensor and signal levels output by each of the plurality of directional acoustic sensors;
and
obtain sound surrounding the acoustic sensor assembly in multiple directions, using the calculated acoustic signal.

5 more elements

A method of sensing sound, the method comprising:

obtaining output signals from a non-directional acoustic sensor having a first directional pattern and a plurality of directional acoustic sensors, the plurality of directional acoustic sensors surrounding the non-directional acoustic sensor, and comprising a plurality of resonators having different resonance frequencies from each other, and each of the plurality of directional acoustic sensors having a second directional pattern;
using a processor to calculate an acoustic signal having directivity by combining each the obtained output signals based on ratios of a signal level output by the non-directional acoustic sensor and signal levels output by each of the plurality of directional acoustic sensors;
and
obtaining sound surrounding an acoustic sensor assembly in multiple directions, using the acoustic calculated signal.

1 more element

Dependencies are inferred from the claim text.

Acoustic sensor assembly and method of sensing sound using the same

Life of this patent

Acoustic sensor assembly and method of sensing sound using the same

Life of this patent

Abstract

Claims20