JPH0219680B2 - - Google Patents
Info
- Publication number
- JPH0219680B2 JPH0219680B2 JP29188587A JP29188587A JPH0219680B2 JP H0219680 B2 JPH0219680 B2 JP H0219680B2 JP 29188587 A JP29188587 A JP 29188587A JP 29188587 A JP29188587 A JP 29188587A JP H0219680 B2 JPH0219680 B2 JP H0219680B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- porous body
- soft porous
- holder
- speaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000011148 porous material Substances 0.000 claims 1
- 230000001052 transient effect Effects 0.000 description 7
- 238000013016 damping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29188587A JPS63153998A (ja) | 1987-11-20 | 1987-11-20 | スピーカ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29188587A JPS63153998A (ja) | 1987-11-20 | 1987-11-20 | スピーカ |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20342581A Division JPS58105695A (ja) | 1981-12-18 | 1981-12-18 | スピ−カ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63153998A JPS63153998A (ja) | 1988-06-27 |
| JPH0219680B2 true JPH0219680B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1990-05-02 |
Family
ID=17774706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29188587A Granted JPS63153998A (ja) | 1987-11-20 | 1987-11-20 | スピーカ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63153998A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489798B (zh) * | 2018-11-30 | 2021-11-02 | 维沃移动通信有限公司 | 一种检测线性马达振幅位移的方法及装置 |
-
1987
- 1987-11-20 JP JP29188587A patent/JPS63153998A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63153998A (ja) | 1988-06-27 |
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