JPH01143594U - - Google Patents
Info
- Publication number
- JPH01143594U JPH01143594U JP3078888U JP3078888U JPH01143594U JP H01143594 U JPH01143594 U JP H01143594U JP 3078888 U JP3078888 U JP 3078888U JP 3078888 U JP3078888 U JP 3078888U JP H01143594 U JPH01143594 U JP H01143594U
- Authority
- JP
- Japan
- Prior art keywords
- correction signal
- duct
- noise
- speaker
- signal
- 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
- 230000003584 silencer Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Duct Arrangements (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3078888U JPH01143594U (it) | 1988-03-07 | 1988-03-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3078888U JPH01143594U (it) | 1988-03-07 | 1988-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01143594U true JPH01143594U (it) | 1989-10-02 |
Family
ID=31256159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3078888U Pending JPH01143594U (it) | 1988-03-07 | 1988-03-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01143594U (it) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03168561A (ja) * | 1989-11-28 | 1991-07-22 | Yamaha Corp | 空調ダクト |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS545402A (en) * | 1977-06-14 | 1979-01-16 | Jinichi Nishiwaki | Low frequency silencer |
-
1988
- 1988-03-07 JP JP3078888U patent/JPH01143594U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS545402A (en) * | 1977-06-14 | 1979-01-16 | Jinichi Nishiwaki | Low frequency silencer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03168561A (ja) * | 1989-11-28 | 1991-07-22 | Yamaha Corp | 空調ダクト |