JP2007020153A - スピーカー - Google Patents
スピーカー Download PDFInfo
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- JP2007020153A JP2007020153A JP2006144675A JP2006144675A JP2007020153A JP 2007020153 A JP2007020153 A JP 2007020153A JP 2006144675 A JP2006144675 A JP 2006144675A JP 2006144675 A JP2006144675 A JP 2006144675A JP 2007020153 A JP2007020153 A JP 2007020153A
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- Prior art keywords
- conductor layer
- center pole
- conductor
- layer
- capacitor
- Prior art date
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
【解決手段】 スピーカー1は、センターポール5とボイスコイルボビン5との間に形成される静電容量を検出して電気信号として出力するものであり、ボビン10の導電体層を第1導電体層12、第2導電体層14、及び第3導電体層16で構成し、且つ、第1導電体層12と第2導電体層14との間に第1絶縁体層13を、第2導電体層14と第3導電体層16との間に第2絶縁体層15を介在させたことを特徴としている。センターポール6と第1導電体層12とで構成されるコンデンサ27と、第1導電体層12と第2導電体層14とで構成されるコンデンサ28とを並列に接続するようにしたので、検出対象となる静電容量を外乱ノイズの影響を受け難いものにすることができる。
【選択図】図2
Description
4 ボイスコイルボビン
5 センターポール
10 ボビン
12 第1導電体層
13 第1絶縁体層
14 第2導電体層
15 第2絶縁体層
16 第3導電体層
22 比較器
24 検出器
25 変換回路
Claims (5)
- センターポールと、絶縁体層と非磁性の導電体層とからなるボビンを有するボイスコイルボビンとの間に形成される静電容量を検出して電気信号として出力するスピーカーにおいて、
前記ボビンの前記導電体層を3つ以上で構成し、且つ、前記導電体層間に前記絶縁体層を介在させたことを特徴とするスピーカー。 - 前記導電体層のうち、前記センターポールとの距離が最も短い前記導電体層以外の前記導電体層を接地したことを特徴とする請求項1記載のスピーカー。
- 前記導電体層のうち、前記センターポールとの距離が最も長い前記導電体層を接地し、且つ、前記導電体層のうち、前記センターポールとの距離が最も短い前記導電体層と、前記センターポールとの距離が最も長い前記導電体層との間の前記導電体層に前記電気信号を入力したことを特徴とする請求項1記載のスピーカー。
- 前記導電体層は、前記センターポール側より、第1の導電体層、第2の導電体層、第3の導電体層の3つからなるものであり、前記センターポールと前記第1の導電体層とにより第1のコンデンサを構成すると共に、前記第1の導電体層と前記第2の導電体層により第2のコンデンサを構成し、前記第1のコンデンサと第2のコンデンサとを並列に接続し、前記第1のコンデンサの静電容量と第2のコンデンサの静電容量との総和が前記電気信号として出力されることを特徴とする請求項1記載のスピーカー。
- 前記第3の導電体層を接地したことを特徴とする請求項4記載のスピーカー。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006144675A JP4642698B2 (ja) | 2005-06-07 | 2006-05-24 | スピーカー |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005167529 | 2005-06-07 | ||
JP2006144675A JP4642698B2 (ja) | 2005-06-07 | 2006-05-24 | スピーカー |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007020153A true JP2007020153A (ja) | 2007-01-25 |
JP4642698B2 JP4642698B2 (ja) | 2011-03-02 |
Family
ID=37756847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006144675A Expired - Fee Related JP4642698B2 (ja) | 2005-06-07 | 2006-05-24 | スピーカー |
Country Status (1)
Country | Link |
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JP (1) | JP4642698B2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016225917A (ja) * | 2015-06-02 | 2016-12-28 | アルパイン株式会社 | スピーカーおよび音響装置 |
EP4072161A1 (en) | 2021-03-25 | 2022-10-12 | Alps Alpine Co., Ltd. | Speaker |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5279644A (en) * | 1975-12-25 | 1977-07-04 | Toshiba Corp | Acoustic equipment |
JPS5312320A (en) * | 1976-07-19 | 1978-02-03 | Matsushita Electric Ind Co Ltd | Mfb circuit |
JPS5312321A (en) * | 1976-07-19 | 1978-02-03 | Matsushita Electric Ind Co Ltd | Mfb circuit |
JPS5796589U (ja) * | 1981-10-29 | 1982-06-14 | ||
JPH08223692A (ja) * | 1995-02-17 | 1996-08-30 | Alpine Electron Inc | スピーカ |
JPH1141690A (ja) * | 1997-07-16 | 1999-02-12 | Onkyo Corp | 動電型スピーカ |
-
2006
- 2006-05-24 JP JP2006144675A patent/JP4642698B2/ja not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5279644A (en) * | 1975-12-25 | 1977-07-04 | Toshiba Corp | Acoustic equipment |
JPS5312320A (en) * | 1976-07-19 | 1978-02-03 | Matsushita Electric Ind Co Ltd | Mfb circuit |
JPS5312321A (en) * | 1976-07-19 | 1978-02-03 | Matsushita Electric Ind Co Ltd | Mfb circuit |
JPS5796589U (ja) * | 1981-10-29 | 1982-06-14 | ||
JPH08223692A (ja) * | 1995-02-17 | 1996-08-30 | Alpine Electron Inc | スピーカ |
JPH1141690A (ja) * | 1997-07-16 | 1999-02-12 | Onkyo Corp | 動電型スピーカ |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016225917A (ja) * | 2015-06-02 | 2016-12-28 | アルパイン株式会社 | スピーカーおよび音響装置 |
EP4072161A1 (en) | 2021-03-25 | 2022-10-12 | Alps Alpine Co., Ltd. | Speaker |
Also Published As
Publication number | Publication date |
---|---|
JP4642698B2 (ja) | 2011-03-02 |
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