Elongated sound isolation devices and systems
US-12211475-B2 · Jan 28, 2025 · US
Angle independent acoustic structures for broadband sound absorption and sound transmission loss
US12586556B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12586556-B2 |
| Application number | US-202318470535-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 20, 2023 |
| Priority date | Sep 20, 2023 |
| Publication date | Mar 24, 2026 |
| Grant date | Mar 24, 2026 |
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Abstract
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An acoustic structure includes at least one acoustic scatterer that is angle independent and has multiple resonant frequencies. Each acoustic scatterer contains at least one repeated cell. Each cell contains at least two distinct resonant channels capable of absorbing sound and improving sound transmission loss at distinct frequencies. Each resonant channel is identical to at least one other channel within the acoustic scatterer.
First claim
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The invention claimed is: 1 . An acoustic structure comprising: an acoustic scatterer comprising a plurality of triangular prism shaped repeating cells with a corresponding plurality of distinct resonant channels positioned about a central axis of the acoustic scatterer such that the acoustic scatterer is an angle independent broadband acoustic absorber. 2 . The acoustic structure according to claim 1 , wherein the plurality of triangular prism shaped repeating cells are positioned about a central plane of the acoustic scatterer. 3 . The acoustic structure according to claim 1 further comprising a cover plate attached to an end of the acoustic scatterer. 4 . The acoustic structure according to claim 3 further comprising another cover plate attached to another end of the acoustic scatterer. 5 . The acoustic structure according to claim 1 further comprising a first cover plate attached to a first end of the acoustic scatterer and a second cover plate attached a second opposing end of the acoustic scatterer. 6 . The acoustic structure according to claim 1 , wherein the plurality of triangular prism shaped repeating cells is four triangular prism shaped repeating cells. 7 . The acoustic structure according to claim 1 , wherein the plurality of triangular prism shaped repeating cells are identical triangular prism shaped repeating cells. 8 . The acoustic structure according to claim 1 , wherein the plurality of triangular prism shaped repeating cells comprises a first set of triangular prism shaped repeating cells and a second set of triangular prism shaped repeating cells that are not identical to the first set of triangular prism shaped repeating cells. 9 . The acoustic structure according to claim 1 , wherein the acoustic scatterer is a plurality of acoustic scatterers. 10 . The acoustic structure according to claim 9 , wherein the plurality of acoustic scatterers comprises a first set of acoustic scatterers and a second set of acoustic scatterers that are different than the first set of acoustic scatterers. 11 . The acoustic structure according to claim 10 , wherein the first set of acoustic scatterers absorb more than 75% of soundwaves within a first frequency range and the second set of acoustic scatterers absorb more than 75% of sound waves within a second frequency range that is different than within the first frequency range. 12 . An acoustic structure comprising: a plurality of acoustic scatterers each comprising a plurality of triangular prism shaped repeating cells with a corresponding plurality of distinct resonant channels such that the plurality of acoustic scatterers are angle independent broadband acoustic absorbers. 13 . The acoustic structure according to claim 12 , wherein the plurality of triangular prism shaped repeating cells are positioned about a central axis of a corresponding acoustic scatterer. 14 . The acoustic structure according to claim 13 further comprising two cover plates attached to opposing ends of each of the plurality of acoustic scatterers. 15 . An acoustic structure comprising: a cylindrical shaped acoustic scatterer; and two cover plates attached to opposing ends of the cylindrical shaped acoustic scatterer, the cylindrical shaped acoustic scatterer comprising a plurality of triangular prism shaped repeating cells positioned about a central axis of the cylindrical shaped acoustic scatterer such that the cylindrical shaped acoustic scatterer is an angle independent broadband acoustic absorber. 16 . The acoustic structure according to claim 15 , wherein the plurality of triangular prism shaped repeating cells comprises a first set of triangular prism shaped repeating cells and a second set of triangular prism shaped repeating cells that are not identical to the first set of triangular prism shaped repeating cells.
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- G10K11/172Primary
using resonance effects · CPC title
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- What does patent US12586556B2 cover?
- An acoustic structure includes at least one acoustic scatterer that is angle independent and has multiple resonant frequencies. Each acoustic scatterer contains at least one repeated cell. Each cell contains at least two distinct resonant channels capable of absorbing sound and improving sound transmission loss at distinct frequencies. Each resonant channel is identical to at least one other ch…
- Who is the assignee on this patent?
- Toyota Eng & Mfg North America, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G10K11/172. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 24 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).