JPH0735481Y2 - 送話器の音響制御装置 - Google Patents
送話器の音響制御装置Info
- Publication number
- JPH0735481Y2 JPH0735481Y2 JP8512490U JP8512490U JPH0735481Y2 JP H0735481 Y2 JPH0735481 Y2 JP H0735481Y2 JP 8512490 U JP8512490 U JP 8512490U JP 8512490 U JP8512490 U JP 8512490U JP H0735481 Y2 JPH0735481 Y2 JP H0735481Y2
- Authority
- JP
- Japan
- Prior art keywords
- sound
- sound hole
- microphone
- housing
- transmitter
- 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
- 238000005192 partition Methods 0.000 claims description 14
- 239000004744 fabric Substances 0.000 description 4
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Telephone Set Structure (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8512490U JPH0735481Y2 (ja) | 1990-08-09 | 1990-08-09 | 送話器の音響制御装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8512490U JPH0735481Y2 (ja) | 1990-08-09 | 1990-08-09 | 送話器の音響制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0443050U JPH0443050U (en]) | 1992-04-13 |
JPH0735481Y2 true JPH0735481Y2 (ja) | 1995-08-09 |
Family
ID=31634069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8512490U Expired - Lifetime JPH0735481Y2 (ja) | 1990-08-09 | 1990-08-09 | 送話器の音響制御装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0735481Y2 (en]) |
-
1990
- 1990-08-09 JP JP8512490U patent/JPH0735481Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0443050U (en]) | 1992-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |