JPWO2021130505A5 - - Google Patents
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- JPWO2021130505A5 JPWO2021130505A5 JP2022539123A JP2022539123A JPWO2021130505A5 JP WO2021130505 A5 JPWO2021130505 A5 JP WO2021130505A5 JP 2022539123 A JP2022539123 A JP 2022539123A JP 2022539123 A JP2022539123 A JP 2022539123A JP WO2021130505 A5 JPWO2021130505 A5 JP WO2021130505A5
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- 230000009466 transformation Effects 0.000 description 6
- 238000003491 array Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Description
具体的には、図26は、振動の調和モードをもたらす三角形2810a、2810b、2810c、2810d、2810e、2810f、2810g、2810hおよび2810i上のヘルムホルツ方程式の解の固有モード2800を示す。モードごとに、ヘルムホルツ解の形状を外挿して、モードによって作動する音響遠方界を説明することができる。これは、同様の周波数での受信素子の指向性のパターンとして、逆に使用することもできる。各モードが複雑なフィールドを生成し、異なる周波数にまたがる複数の高調波を組み合わせることで、遠距離場への受信または送信により、遠距離場への空間オフセットを、特に角度で識別することができ、方位角と仰角にパラメータ化される。個々のトランスデューサ要素の非対称性の性質により、これは可能であるが、これをタイリングの不合理で非反復的な周波数動作と組み合わせることで、効果をさらに強化することができる。これらの形状、タイリング、ハーモニクスを使用して作動および/または受信することにより、潜在的に複数の要素にまたがる、そのような要素または要素のグループによって生成される音響の遠方場と交差するオブジェクトの正確な位置は、これらの要素またはマイクロホンによって受信された信号をアルゴリズムまたはその他の方法で調査することによって推定される可能性がある。同様に、信号は単純なトランスデューサによって放出され、前述のようなアレイによって受信されてもよい。この結果、すべての高調波と受信機を使用することで、潜在的に個々のトランスデューサに対してさえ角度位置を追跡することができる。
追加の開示は以下を含む。:
1.複数のトランスデューサからなる多数のタイルを有するアレイであって、変換が適用される前に各要素の新しいフットプリントがフットプリントと交差するように、物理的なトランスデューサの位置が剛体変換によって摂動され、それぞれの元のフットプリントが音響トランスデューサの均一なレイアウトを含むアレイ。
2.トランスデューサが音響トランスデューサを含む、上記項目1に記載のアレイ。
3.トランスデューサが、電磁信号をビーム形成するためのアンテナのアレイを備える、上記項目1に記載のアレイ。
4.物理的なタイル位置が剛体変換によって摂動され、変換が適用される前に各タイルの新しいフットプリントがフットプリントと交差する、上記項目1に記載のアレイ。
5.変換は、より大きなタイル配置を構成するより小さなタイル配置に再帰的に適用される、上記項目1に記載のアレイ。
6.単一のタイルが複製されて複数のタイルが生成され、次に剛体変換を使用して配置されて配列が生成される、上記項目1に記載のアレイ。
7.変換された配列がグレーティングローブ強度を減少させる、上記項目1に記載のアレイ。
1.複数のトランスデューサからなる多数のタイルを有するアレイであって、変換が適用される前に各要素の新しいフットプリントがフットプリントと交差するように、物理的なトランスデューサの位置が剛体変換によって摂動され、それぞれの元のフットプリントが音響トランスデューサの均一なレイアウトを含むアレイ。
2.トランスデューサが音響トランスデューサを含む、上記項目1に記載のアレイ。
3.トランスデューサが、電磁信号をビーム形成するためのアンテナのアレイを備える、上記項目1に記載のアレイ。
4.物理的なタイル位置が剛体変換によって摂動され、変換が適用される前に各タイルの新しいフットプリントがフットプリントと交差する、上記項目1に記載のアレイ。
5.変換は、より大きなタイル配置を構成するより小さなタイル配置に再帰的に適用される、上記項目1に記載のアレイ。
6.単一のタイルが複製されて複数のタイルが生成され、次に剛体変換を使用して配置されて配列が生成される、上記項目1に記載のアレイ。
7.変換された配列がグレーティングローブ強度を減少させる、上記項目1に記載のアレイ。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962953577P | 2019-12-25 | 2019-12-25 | |
US62/953,577 | 2019-12-25 | ||
US201962954171P | 2019-12-27 | 2019-12-27 | |
US62/954,171 | 2019-12-27 | ||
PCT/GB2020/053373 WO2021130505A1 (en) | 2019-12-25 | 2020-12-29 | Acoustic transducer structures |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2023508431A JP2023508431A (ja) | 2023-03-02 |
JPWO2021130505A5 true JPWO2021130505A5 (ja) | 2024-01-23 |
Family
ID=74130281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022539123A Pending JP2023508431A (ja) | 2019-12-25 | 2020-12-29 | 音響トランスデューサ構造 |
Country Status (5)
Country | Link |
---|---|
US (2) | US11715453B2 (ja) |
EP (1) | EP4081352A1 (ja) |
JP (1) | JP2023508431A (ja) |
CN (1) | CN115151350B (ja) |
WO (1) | WO2021130505A1 (ja) |
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2020
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- 2020-12-29 WO PCT/GB2020/053373 patent/WO2021130505A1/en unknown
- 2020-12-29 JP JP2022539123A patent/JP2023508431A/ja active Pending
- 2020-12-29 EP EP20838279.6A patent/EP4081352A1/en active Pending
- 2020-12-29 CN CN202080096507.5A patent/CN115151350B/zh active Active
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