KR840002210B1 - 복합형 스피이커 - Google Patents
복합형 스피이커 Download PDFInfo
- Publication number
- KR840002210B1 KR840002210B1 KR1019810000632A KR810000632A KR840002210B1 KR 840002210 B1 KR840002210 B1 KR 840002210B1 KR 1019810000632 A KR1019810000632 A KR 1019810000632A KR 810000632 A KR810000632 A KR 810000632A KR 840002210 B1 KR840002210 B1 KR 840002210B1
- Authority
- KR
- South Korea
- Prior art keywords
- piezoelectric vibrating
- vibrating plate
- speaker
- frame
- paper
- 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
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56007450A JPS57121397A (en) | 1981-01-20 | 1981-01-20 | Composite type speaker |
| JP7450 | 1981-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR840002210B1 true KR840002210B1 (ko) | 1984-11-28 |
Family
ID=11666164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019810000632A Expired KR840002210B1 (ko) | 1981-01-20 | 1981-02-26 | 복합형 스피이커 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS57121397A (enExample) |
| KR (1) | KR840002210B1 (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010062051A (ko) * | 1999-12-01 | 2001-07-07 | 이재성 | 일체형 진동 및 음향발생장치 |
-
1981
- 1981-01-20 JP JP56007450A patent/JPS57121397A/ja active Granted
- 1981-02-26 KR KR1019810000632A patent/KR840002210B1/ko not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57121397A (en) | 1982-07-28 |
| JPS6347200B2 (enExample) | 1988-09-20 |
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| JPS60214200A (ja) | 圧電形電気音響変換器 | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19810226 |
|
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 19840419 Patent event code: PE09021S01D |
|
| PG1605 | Publication of application before grant of patent |
Comment text: Decision on Publication of Application Patent event code: PG16051S01I Patent event date: 19841106 |
|
| PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19850211 |
|
| PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19850218 Patent event code: PR07011E01D |
|
| PR1002 | Payment of registration fee |
Payment date: 19850218 End annual number: 3 Start annual number: 1 |
|
| PR1001 | Payment of annual fee |
Payment date: 19871012 Start annual number: 4 End annual number: 4 |
|
| PR1001 | Payment of annual fee |
Payment date: 19871221 Start annual number: 5 End annual number: 5 |
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| PR1001 | Payment of annual fee |
Payment date: 19891031 Start annual number: 6 End annual number: 6 |
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| PR1001 | Payment of annual fee |
Payment date: 19901026 Start annual number: 7 End annual number: 7 |
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| PR1001 | Payment of annual fee |
Payment date: 19911121 Start annual number: 8 End annual number: 8 |
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| PR1001 | Payment of annual fee |
Payment date: 19921126 Start annual number: 9 End annual number: 9 |
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| PR1001 | Payment of annual fee |
Payment date: 19931122 Start annual number: 10 End annual number: 10 |
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| PR1001 | Payment of annual fee |
Payment date: 19941111 Start annual number: 11 End annual number: 11 |
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| PR1001 | Payment of annual fee |
Payment date: 19951122 Start annual number: 12 End annual number: 12 |
|
| PC1801 | Expiration of term |