Adaptive acoustic intensity analyzer

Patent metadata

Field	Value
Publication number	US-10107676-B2
Application number	US-201515121626-A
Country	US
Kind code	B2
Filing date	Mar 18, 2015
Priority date	Mar 18, 2014
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

Systems and method for providing an audio output with an acoustic intensity analyzer. The acoustic intensity analyzer includes an acoustic intensity array, a controller, and an orientation sensor. The acoustic intensity array is fixed to the acoustic intensity analyzer. The controller is coupled to the acoustic intensity array to produce the audio output using acoustic holography based on an input from the acoustic intensity array. The controller is configured to set an aim of the acoustic holography in a selected direction. The orientation sensor is coupled to the controller and mechanically fixed to the acoustic intensity analyzer such that there is no relative movement between the orientation sensor and the acoustic intensity array. The orientation sensor detects a change in an orientation of the acoustic intensity array and provides an orientation signal to the controller for adjusting the aim of the acoustic holography to maintain the selected direction.

First claim

What is claimed is:

1. An acoustic intensity analyzer to provide an audio output, the acoustic intensity analyzer comprising:
an acoustic intensity array fixed to the acoustic intensity analyzer,
a controller coupled to the acoustic intensity array to produce the audio output using acoustic holography based on an input from the acoustic intensity array, the controller is configured to set an aim of the acoustic holography in a selected direction; and
an orientation sensor coupled to the controller and mechanically fixed to the acoustic intensity analyzer such that there is no relative movement between the orientation sensor and the acoustic intensity array, the orientation sensor detecting a change in an orientation of the acoustic intensity array and providing an orientation signal to the controller for adjusting the aim of the acoustic holography to maintain the selected direction.

2. The acoustic intensity analyzer of claim 1 , wherein the orientation sensor is at least one selected from a group consisting of an accelerometer, a gyroscope, and a magnetometer.

3. The acoustic intensity analyzer of claim 1 , wherein the controller is further configured to produce the audio output using the acoustic holography based on the input from the acoustic intensity array includes determining an intensity value based on the input and the orientation signal.

4. The acoustic intensity analyzer of claim 3 , wherein the input includes a velocity of an acoustic signal and a pressure of the acoustic signal.

5. An acoustic intensity analyzer to provide an audio output, the acoustic intensity analyzer comprising:
an acoustic intensity array fixed to the acoustic intensity analyzer,
a controller coupled to the acoustic intensity array to produce the audio output using acoustic holography based on an input from the acoustic intensity array, the controller is configured to set an aim of the acoustic holography in a selected direction; and
an orientation sensor coupled to the controller and mechanically fixed to the acoustic intensity analyzer such that there is no relative movement between the orientation sensor and the acoustic intensity array, the orientation sensor detecting a change in an orientation of the acoustic intensity array and providing an orientation signal to the controller for adjusting the aim of the acoustic holography to maintain the selected direction,
wherein the controller is further configured to receive information from a second acoustic intensity analyzer, the second acoustic intensity analyzer including a second acoustic intensity array and a second orientation sensor, wherein a position of the acoustic intensity analyzer is different from a second position of the second acoustic intensity analyzer.

6. The acoustic intensity analyzer of claim 5 , wherein the controller is further configured to produce the audio output using the acoustic holography based on the input from the acoustic intensity array and the information received for the second acoustic intensity analyzer.

7. The acoustic intensity analyzer of claim 5 , wherein the controller is further configured to determine a difference in the orientation of the acoustic intensity array in the acoustic intensity analyzer and the second acoustic intensity array in the second acoustic intensity analyzer.

8. The acoustic intensity analyzer of claim 5 , wherein the controller is further configured to determine the position of the second acoustic intensity analyzer.

9. The acoustic intensity analyzer of claim 8 , wherein the controller is further configured to determine the selected direction based on the input and the information received from the second acoustic intensity analyzer.

10. The acoustic intensity analyzer of claim 5 , wherein the information includes at least one selected from a group consisting of a second input from the second acoustic intensity array, a second orientation signal from the second orientation sensor, and an intensity value.

11. A method of providing an audio output using an acoustic intensity analyzer, the method comprising:
capturing an input with an acoustic intensity array fixed to the acoustic intensity analyzer;
producing the audio output using acoustic holography based on the input with a controller coupled to the acoustic intensity array,
setting an aim of the acoustic holography in a selected direction with the controller;
detecting a change in an orientation of the acoustic intensity analyzer with an orientation sensor mechanically fixed to the acoustic intensity analyzer such that there is no relative movement between the orientation sensor and the acoustic intensity array;
determining an orientation signal with the orientation sensor, the orientation signal based on the change in the orientation of the acoustic intensity analyzer; and
adjusting the aim of the acoustic holography to maintain the selected direction based on the orientation signal with the controller.

12. The method of claim 11 , wherein the orientation sensor is at least one selected from a group consisting of an accelerometer, a gyroscope, and a magnetometer.

13. The method of claim 11 , further comprising determining an intensity value based on the input and the orientation signal with the controller.

14. The method of claim 13 , wherein the input includes a velocity of an acoustic signal and a pressure of the acoustic signal.

15. The method of claim 11 , further comprising receiving information from a second acoustic intensity analyzer with the controller, the second acoustic intensity analyzer including a second acoustic intensity array and a second orientation sensor, wherein a position of the acoustic intensity analyzer is different from a second position of the second acoustic intensity analyzer.

16. The method of claim 15 , further comprising producing, with the controller, the audio output using the acoustic holography based on the input from the acoustic intensity array and the information received for the second acoustic intensity analyzer.

17. The method of claim 15 , further comprising determining, with the controller a difference in the orientation of the acoustic intensity array in the acoustic intensity analyzer and the second acoustic intensity array in the second acoustic intensity analyzer.

18. The method of claim 15 , further comprising determining the position of the second acoustic intensity analyzer with the controller.

19. The method of claim 18 , further comprising determining, with the controller, the selected direction based on the input and the information received from the second acoustic intensity analyzer.

20. The method of claim 15 , wherein the information includes at least one selected from a group consisting of a second input from the second acoustic intensity array, a second orientation signal from the second orientation sensor, and an intensity value.

Assignees

• Bosch Gmbh Robert

Inventors

• Doller Andrew

Classifications

• G01H3/125 Primary

  for representing acoustic field distribution (using optical means G01H9/002; sonar systems for imaging G01S7/56, G01S15/89; acoustic holography G03H3/00) · CPC title

• G01H3/12 Primary

  by electric means (G01H3/14 takes precedence) · CPC title

• G01N29/0663

  by acoustic holography (acoustical holography per se G03H3/00) · CPC title