JPH01143593U - - Google Patents
Info
- Publication number
- JPH01143593U JPH01143593U JP3078788U JP3078788U JPH01143593U JP H01143593 U JPH01143593 U JP H01143593U JP 3078788 U JP3078788 U JP 3078788U JP 3078788 U JP3078788 U JP 3078788U JP H01143593 U JPH01143593 U JP H01143593U
- Authority
- JP
- Japan
- Prior art keywords
- correction signal
- duct
- speaker
- sound
- noise
- 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.)
- Granted
Links
- 238000013016 damping Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Duct Arrangements (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3078788U JPH0715037Y2 (ja) | 1988-03-07 | 1988-03-07 | 消音装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3078788U JPH0715037Y2 (ja) | 1988-03-07 | 1988-03-07 | 消音装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01143593U true JPH01143593U (no) | 1989-10-02 |
JPH0715037Y2 JPH0715037Y2 (ja) | 1995-04-10 |
Family
ID=31256158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3078788U Expired - Lifetime JPH0715037Y2 (ja) | 1988-03-07 | 1988-03-07 | 消音装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0715037Y2 (no) |
-
1988
- 1988-03-07 JP JP3078788U patent/JPH0715037Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0715037Y2 (ja) | 1995-04-10 |
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