DE3429147C2 - - Google Patents
Info
- Publication number
- DE3429147C2 DE3429147C2 DE19843429147 DE3429147A DE3429147C2 DE 3429147 C2 DE3429147 C2 DE 3429147C2 DE 19843429147 DE19843429147 DE 19843429147 DE 3429147 A DE3429147 A DE 3429147A DE 3429147 C2 DE3429147 C2 DE 3429147C2
- Authority
- DE
- Germany
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843429147 DE3429147A1 (de) | 1984-08-08 | 1984-08-08 | Anordnung zur akustischen gegenkopplung von lautsprechern |
| EP85109881A EP0171065A3 (de) | 1984-08-08 | 1985-08-06 | Anordnung zur akustischen Gegenkopplung von Lautsprechern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843429147 DE3429147A1 (de) | 1984-08-08 | 1984-08-08 | Anordnung zur akustischen gegenkopplung von lautsprechern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3429147A1 DE3429147A1 (de) | 1986-02-20 |
| DE3429147C2 true DE3429147C2 (US20090192370A1-20090730-C00001.png) | 1987-04-02 |
Family
ID=6242575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19843429147 Granted DE3429147A1 (de) | 1984-08-08 | 1984-08-08 | Anordnung zur akustischen gegenkopplung von lautsprechern |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0171065A3 (US20090192370A1-20090730-C00001.png) |
| DE (1) | DE3429147A1 (US20090192370A1-20090730-C00001.png) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2673800B1 (fr) * | 1991-03-07 | 1993-12-31 | Lan Yan Fock Alain | Dispositif electro-acoustique de reproduction sonore, asservi electroniquement, utilisant un haut-parleur a pavillon muni de microphones. |
| DE4139681A1 (de) * | 1991-12-02 | 1992-07-02 | Czerny Heribert | Schallwandler mit kompensationsantrieb |
| GB2268356A (en) * | 1992-06-23 | 1994-01-05 | Itzhak Chavet | High-fidelity loudspeaker. |
| DE4334040C2 (de) * | 1993-10-06 | 1996-07-11 | Klippel Wolfgang | Schaltungsanordnung zur selbständigen Korrektur des Übertragungsverhaltens von elektrodynamischen Schallsendern ohne zusätzlichen mechanischen oder akustischen Sensor |
| GB2292854B (en) * | 1994-08-12 | 1999-08-25 | Motorola Ltd | Electronic audio device and method of operation |
| GB9513894D0 (en) * | 1995-07-07 | 1995-09-06 | Univ Salford The | Loudspeaker circuit |
| CN1195459A (zh) * | 1995-09-02 | 1998-10-07 | 新型转换器有限公司 | 板式扬声器 |
| FR2775861B1 (fr) * | 1998-03-05 | 2000-03-31 | Alsthom Cge Alcatel | Terminal de radiotelecommunication |
| EP2667634B1 (en) * | 2012-05-25 | 2015-07-08 | AKG Acoustics GmbH | Earphone with active suppression of ambient noise |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2948778A (en) * | 1956-05-07 | 1960-08-09 | Warner W Clements | Sound reproducing means |
| NL294600A (US20090192370A1-20090730-C00001.png) * | 1963-06-26 | |||
| DE2141141A1 (de) * | 1971-08-12 | 1973-02-22 | Neumann Gmbh Georg | Schaltungsanordnung zur gegenkopplung eines lautsprechers |
| NL7308103A (US20090192370A1-20090730-C00001.png) * | 1973-06-12 | 1974-12-16 | ||
| DE2626652C3 (de) * | 1976-06-15 | 1979-11-22 | Friedemann Dipl.-Ing. 8000 Muenchen Meggl | Regelungsanordnung für Schallsender |
| DE2629605C3 (de) * | 1976-07-01 | 1979-10-31 | Braun Ag, 6000 Frankfurt | Schallwiedergabesystem |
| DE2803168C3 (de) * | 1978-01-25 | 1982-10-21 | Friedemann Dipl.-Ing. Dr. 8069 Jetzendorf Meggl | Elektromechanischer Wandler |
| GB1568026A (en) * | 1978-01-27 | 1980-05-21 | Philips Nv | Electrodynamic loudspeaker |
| NL7802687A (nl) * | 1978-03-13 | 1979-09-17 | Philips Nv | Dreunvrije microfooncombinatie bevattende twee microfoonelementen. |
| NL8001592A (nl) * | 1980-03-18 | 1981-10-16 | Philips Nv | Mfb systeem met een overnamenetwerk. |
| US4404040A (en) * | 1981-07-01 | 1983-09-13 | Economics Laboratory, Inc. | Short chain fatty acid sanitizing composition and methods |
| DE3137747A1 (de) * | 1981-09-23 | 1983-03-31 | Gerhard Dipl.-Ing. 3002 Wedemark Kock | Lautsprecherschaltung mit akustischer gegenkopplung |
| US4445227A (en) * | 1981-12-28 | 1984-04-24 | Magnavox Consumer Electronics Company | Loudspeaker having improved directional characteristics |
| EP0113370A1 (en) * | 1982-06-30 | 1984-07-18 | B & W LOUDSPEAKERS LIMITED | Environment-adaptive loudspeaker systems |
| EP0122290B1 (en) * | 1982-10-14 | 1991-04-03 | Matsushita Electric Industrial Co., Ltd. | Speaker |
-
1984
- 1984-08-08 DE DE19843429147 patent/DE3429147A1/de active Granted
-
1985
- 1985-08-06 EP EP85109881A patent/EP0171065A3/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE3429147A1 (de) | 1986-02-20 |
| EP0171065A3 (de) | 1986-11-20 |
| EP0171065A2 (de) | 1986-02-12 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8339 | Ceased/non-payment of the annual fee |