JPH0247894U - - Google Patents
Info
- Publication number
- JPH0247894U JPH0247894U JP12563188U JP12563188U JPH0247894U JP H0247894 U JPH0247894 U JP H0247894U JP 12563188 U JP12563188 U JP 12563188U JP 12563188 U JP12563188 U JP 12563188U JP H0247894 U JPH0247894 U JP H0247894U
- Authority
- JP
- Japan
- Prior art keywords
- vibrator
- cavity
- acoustic device
- resonator
- driven
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 4
- 230000011514 reflex Effects 0.000 description 1
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12563188U JPH0247894U (uk) | 1988-09-28 | 1988-09-28 | |
US07/413,381 US5109422A (en) | 1988-09-28 | 1989-09-27 | Acoustic apparatus |
EP19890117860 EP0361445A3 (en) | 1988-09-28 | 1989-09-27 | Acoustic apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12563188U JPH0247894U (uk) | 1988-09-28 | 1988-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0247894U true JPH0247894U (uk) | 1990-04-03 |
Family
ID=31376408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12563188U Pending JPH0247894U (uk) | 1988-09-28 | 1988-09-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0247894U (uk) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5634476U (uk) * | 1979-08-27 | 1981-04-03 | ||
JPS61294992A (ja) * | 1985-06-14 | 1986-12-25 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | 電気信号を音響信号に変換する装置 |
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1988
- 1988-09-28 JP JP12563188U patent/JPH0247894U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5634476U (uk) * | 1979-08-27 | 1981-04-03 | ||
JPS61294992A (ja) * | 1985-06-14 | 1986-12-25 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | 電気信号を音響信号に変換する装置 |