FR997880A - Method and devices for sound or noise suppression - Google Patents
Method and devices for sound or noise suppressionInfo
- Publication number
- FR997880A FR997880A FR997880DA FR997880A FR 997880 A FR997880 A FR 997880A FR 997880D A FR997880D A FR 997880DA FR 997880 A FR997880 A FR 997880A
- Authority
- FR
- France
- Prior art keywords
- sound
- devices
- noise suppression
- suppression
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR997880T | 1945-08-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR997880A true FR997880A (en) | 1952-01-11 |
Family
ID=9558978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR997880D Expired FR997880A (en) | 1945-08-18 | 1945-08-18 | Method and devices for sound or noise suppression |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR997880A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1111459B (en) * | 1958-02-06 | 1961-07-20 | Friedrich Schley | Silencer for internal combustion engines |
DE1121410B (en) * | 1958-03-27 | 1962-01-04 | Wilhelm Bauer | Silencer for internal combustion engines |
WO1999011943A1 (en) * | 1997-08-29 | 1999-03-11 | Schoenfeld Robert | Regulator for adjusting the fluid flow in a hydrostatic or aerostatic device |
EP1067511A3 (en) * | 1999-07-07 | 2001-03-28 | Korea Institute Of Science And Technology | Method and apparatus for actively controlling exhaust noise |
EP1251246A2 (en) * | 2001-04-18 | 2002-10-23 | Korea Institute Of Science And Technology | Apparatus for controlling exhaust gas in internal combustion engine |
-
1945
- 1945-08-18 FR FR997880D patent/FR997880A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1111459B (en) * | 1958-02-06 | 1961-07-20 | Friedrich Schley | Silencer for internal combustion engines |
DE1121410B (en) * | 1958-03-27 | 1962-01-04 | Wilhelm Bauer | Silencer for internal combustion engines |
WO1999011943A1 (en) * | 1997-08-29 | 1999-03-11 | Schoenfeld Robert | Regulator for adjusting the fluid flow in a hydrostatic or aerostatic device |
US6276491B1 (en) | 1997-08-29 | 2001-08-21 | Schoenfeld Robert | Regulator for adjusting the fluid flow in a hydrostatic or aerostatic device |
EP1067511A3 (en) * | 1999-07-07 | 2001-03-28 | Korea Institute Of Science And Technology | Method and apparatus for actively controlling exhaust noise |
US6633646B1 (en) | 1999-07-07 | 2003-10-14 | Korea Institute Of Science And Technology | Method and apparatus for controlling exhaust noise |
EP1251246A2 (en) * | 2001-04-18 | 2002-10-23 | Korea Institute Of Science And Technology | Apparatus for controlling exhaust gas in internal combustion engine |
AU758984B2 (en) * | 2001-04-18 | 2003-04-03 | Korea Institute Of Science And Technology | Apparatus for controlling exhaust gas in internal combustion engine |
EP1251246A3 (en) * | 2001-04-18 | 2003-12-10 | Korea Institute Of Science And Technology | Apparatus for controlling exhaust gas in internal combustion engine |
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