JPH0562518B2 - - Google Patents
Info
- Publication number
- JPH0562518B2 JPH0562518B2 JP24041783A JP24041783A JPH0562518B2 JP H0562518 B2 JPH0562518 B2 JP H0562518B2 JP 24041783 A JP24041783 A JP 24041783A JP 24041783 A JP24041783 A JP 24041783A JP H0562518 B2 JPH0562518 B2 JP H0562518B2
- Authority
- JP
- Japan
- Prior art keywords
- loudspeaker
- sound
- loudspeakers
- attenuation
- base
- 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 - Lifetime
Links
- 238000010586 diagram Methods 0.000 description 8
- 238000002592 echocardiography Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R27/00—Public address systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24041783A JPS60130999A (ja) | 1983-12-19 | 1983-12-19 | 拡声装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24041783A JPS60130999A (ja) | 1983-12-19 | 1983-12-19 | 拡声装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60130999A JPS60130999A (ja) | 1985-07-12 |
JPH0562518B2 true JPH0562518B2 (nl) | 1993-09-08 |
Family
ID=17059161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24041783A Granted JPS60130999A (ja) | 1983-12-19 | 1983-12-19 | 拡声装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60130999A (nl) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5406634A (en) * | 1993-03-16 | 1995-04-11 | Peak Audio, Inc. | Intelligent speaker unit for speaker system network |
JP2003204596A (ja) | 2002-01-04 | 2003-07-18 | Matsushita Electric Ind Co Ltd | 拡声放送システムおよび拡声放送装置 |
KR101697453B1 (ko) * | 2016-01-14 | 2017-01-17 | 주식회사 제이디솔루션 | 전달력이 향상된 터널용 스피커를 이용한 터널 정보 방송 시스템 |
-
1983
- 1983-12-19 JP JP24041783A patent/JPS60130999A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60130999A (ja) | 1985-07-12 |
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