Sound/vibration spectrum analyzing device and methods of acquiring and analyzing frequency information

Patent metadata

Field	Value
Publication number	US-10141007-B1
Application number	US-201815899884-A
Country	US
Kind code	B1
Filing date	Feb 20, 2018
Priority date	Sep 19, 2017
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

A sound and vibration spectrum analyzing device includes a plurality of resonators having different center frequencies, the plurality of resonators being configured to acquire a spectrum of sound and vibration. The sound and vibration spectrum analyzing device is configured to analyze the spectrum of sound and vibration, based on a first frequency signal of a first resonance mode and a second frequency signal of a second-order or higher resonance mode of at least some of the plurality of resonators.

First claim

What is claimed is:

1. A sound and vibration spectrum analyzing device comprising:
a plurality of resonators having different center frequencies, the plurality of resonators being configured to acquire a spectrum of sound and vibration,
wherein the sound and vibration spectrum analyzing device is configured to analyze the spectrum of sound and vibration, based on a first frequency signal of a first resonance mode and a second frequency signal of a second-order or higher resonance mode of at least some of the plurality of resonators.

2. The sound and vibration spectrum analyzing device of claim 1 , further comprising a band signal divider that separates the first frequency signal of the first resonance mode and the second frequency signal of the second-order or higher resonance mode of the at least some of the plurality of resonators.

3. The sound and vibration spectrum analyzing device of claim 2 , wherein the band signal divider comprises one of a diplexer, a duplexer, and a triplexer.

4. The sound and vibration spectrum analyzing device of claim 2 , wherein the band signal divider comprises a low pass filter and a high pass filter, and
each of the low pass filter and the high pass filter has a same cutoff frequency.

5. The sound and vibration spectrum analyzing device of claim 2 , wherein the band signal divider has a cutoff frequency between a first resonance frequency group of the first resonance mode and a second resonance frequency group of a second resonance mode of the plurality of resonators.

6. The sound and vibration spectrum analyzing device of claim 1 , wherein the plurality of resonators comprises an n number of resonators,
a first resonance frequency of the first resonance mode of a first resonator is f_ 11 ,
a second resonance frequency of a second resonance mode of the first resonator is f_ 12 , and
resonance frequencies of the first resonance mode of second to n-th resonators are between the first resonance frequency and the second resonance frequency.

7. The sound and vibration spectrum analyzing device of claim 1 , wherein resonance frequencies of the first resonance mode of the plurality of resonators are linearly arranged at same intervals.

8. The sound and vibration spectrum analyzing device of claim 1 , wherein resonance frequencies of the first resonance mode of the plurality of resonators are non-linearly arranged at varying intervals.

9. The sound and vibration spectrum analyzing device of claim 1 , wherein the plurality of resonators comprises a first resonator and a second resonator,
each of the first resonator and the second resonator has a same resonance frequency in the first resonance mode, and
the first resonator and the second resonator have different resonance frequencies in a second resonance mode.

10. The sound and vibration spectrum analyzing device of claim 1 , wherein the sound and vibration spectrum analyzing device comprises effective band filters of an amount two times or more than a number of the plurality of resonators.

11. The sound and vibration spectrum analyzing device of claim 1 , wherein the plurality of resonators comprises an electromechanical resonator structure.

12. The sound and vibration spectrum analyzing device of claim 1 , wherein the plurality of resonators comprises a cantilever structure.

13. The sound and vibration spectrum analyzing device of claim 12 , wherein the plurality of resonators further comprises a mass body disposed on the cantilever structure.

14. The sound and vibration spectrum analyzing device of claim 1 , wherein the plurality of resonators comprises first resonators of a first group, and
the first resonators have different lengths.

15. An electronic apparatus comprising the sound and vibration spectrum analyzing device as claimed in claim 1 .

16. A sound and vibration spectrum analyzing device comprising:
a plurality of resonators having different center frequencies, the plurality of resonators being configured to acquire a spectrum of sound and vibration; and
a band signal divider separating a first frequency signal of a first resonance mode and a second frequency signal of a second-order or higher resonance mode of each of the plurality of resonators.

17. The sound and vibration spectrum analyzing device of claim 16 , wherein the sound and vibration spectrum analyzing device is configured to analyze the spectrum of sound and vibration, based on the first frequency signal of the first resonance mode and the second frequency signal of the second-order or higher resonance mode that are separated, of each of the plurality of resonators.

18. The sound and vibration spectrum analyzing device of claim 16 , wherein the band signal divider comprises one of a diplexer, a duplexer, and a triplexer.

19. The sound and vibration spectrum analyzing device of claim 16 , wherein the band signal divider comprises a low pass filter and a high pass filter, and
each of the low pass filter and the high pass filter has a same cutoff frequency.

20. The sound and vibration spectrum analyzing device of claim 16 , wherein the band signal divider has a cutoff frequency between a first resonance frequency group of the first resonance mode and a second resonance frequency group of a second resonance mode of the plurality of resonators.

21. The sound and vibration spectrum analyzing device of claim 16 , wherein the plurality of resonators comprises an n number of resonators,
a first resonance frequency of the first resonance mode of a first resonator is f_ 11 ,
a second resonance frequency of a second resonance mode of the first resonator is f_ 12 , and
resonance frequencies of the first resonance mode of second to n-th resonators are between the first resonance frequency and the second resonance frequency.

22. A method of analyzing a sound and vibration spectrum using a plurality of resonators having different center frequencies, the method comprising:
acquiring a first frequency signal of a first resonance mode of at least some of the plurality of resonators;
acquiring a second frequency signal of a second resonance mode of the at least some of the plurality of resonators; and
analyzing each of the first frequency signal of the first resonance mode and the second frequency signal of the second resonance mode.

23. The method of claim 22 , further comprising separating the first frequency signal of the first resonance mode and the second frequency signal of the second resonance mode of the at least some of the plurality of resonators.

24. The method of claim 23 , wherein the first frequency signal of the first resonance mode and the second frequency signal of the second resonance mode that are separated are simultaneously output by an individual resonator of the at least some of the plurality of resonators.

25. The method of claim 22 , further comprising acquiring and analyzing a third frequency signal of a third-order or higher resonance mode of the at least some of the plurality of resonators.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Cheheung
• Kang Sungchan
• Park Sangha
• Yoon Yongseop
• Rhee Choongho
• Hong Hyeokki

Classifications

• H04R29/00

  Monitoring arrangements; Testing arrangements {(for hearing aids H04R25/30; detection of loudspeaker connection H04R5/04; sound-field adaptation dependent on speaker detection H04S7/308)} · CPC title

• H04R3/04

  for correcting frequency response · CPC title

• G10L25/18 Primary

  the extracted parameters being spectral information of each sub-band · CPC title

• H04R11/14

  Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency · CPC title

• H04R11/04

  Microphones · CPC title