CH480769A - Akustisches Gerät für die Niederfrequenz-Tonwiedergabe - Google Patents
Akustisches Gerät für die Niederfrequenz-TonwiedergabeInfo
- Publication number
- CH480769A CH480769A CH684968A CH684968A CH480769A CH 480769 A CH480769 A CH 480769A CH 684968 A CH684968 A CH 684968A CH 684968 A CH684968 A CH 684968A CH 480769 A CH480769 A CH 480769A
- Authority
- CH
- Switzerland
- Prior art keywords
- low frequency
- sound reproduction
- acoustic device
- frequency sound
- acoustic
- Prior art date
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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
- H04R1/2823—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
- H04R1/2826—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material for loudspeaker transducers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681762237 DE1762237C3 (de) | 1968-05-04 | 1968-05-04 | Lautsprecheranlage, insbesondere für die Niederfrequenz-Tonwiedergabe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH480769A true CH480769A (de) | 1969-10-31 |
Family
ID=5696936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH684968A CH480769A (de) | 1968-05-04 | 1968-05-08 | Akustisches Gerät für die Niederfrequenz-Tonwiedergabe |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH480769A (enrdf_load_stackoverflow) |
| DE (1) | DE1762237C3 (enrdf_load_stackoverflow) |
| FR (1) | FR1572648A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4142604A (en) * | 1976-09-15 | 1979-03-06 | Smith Todd G | Speaker structure |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984002940A1 (en) * | 1983-01-28 | 1984-08-02 | Krister Amneus | An arrangement in acoustic systems |
| DE3920060A1 (de) * | 1989-06-20 | 1991-01-03 | Mb Electronic Gmbh | Elektroakustische lautsprechervorrichtung |
| DE3920041C1 (enrdf_load_stackoverflow) * | 1989-06-20 | 1990-12-06 | Amneus Engineering, Vaellingby, Se |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2885024A (en) * | 1959-05-05 | Loudspeaker cabinets | ||
| US2065751A (en) * | 1935-12-31 | 1936-12-29 | Rca Corp | Acoustic resistance device |
| GB496619A (en) * | 1937-01-23 | 1938-12-02 | Philips Nv | Improvements in loudspeakers |
| DE1074651B (de) * | 1956-03-08 | 1960-02-04 | Deutsche Post Betnebslaboratorium fur Rundfunk und Fernsehen Ber Im Adlershof | Anordnung zur Er zielung der Erweiterung des Frequenz bereiches in Richtung der tieferen Frc quenzen bei akustischen Strahlern |
| DE1275136B (de) * | 1965-03-05 | 1968-08-14 | Akg Akustische Kino Geraete | Elektrodynamisches Richtmikrophon mit phasendrehendem akustischen Laufzeitglied vom LR-Typ |
-
1968
- 1968-05-04 DE DE19681762237 patent/DE1762237C3/de not_active Expired
- 1968-05-08 CH CH684968A patent/CH480769A/de not_active IP Right Cessation
- 1968-06-18 FR FR1572648D patent/FR1572648A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4142604A (en) * | 1976-09-15 | 1979-03-06 | Smith Todd G | Speaker structure |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1572648A (enrdf_load_stackoverflow) | 1969-06-27 |
| DE1762237B2 (enrdf_load_stackoverflow) | 1980-01-03 |
| DE1762237A1 (de) | 1970-04-23 |
| DE1762237C3 (de) | 1983-12-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |