FR739681A - - Google Patents
Info
- Publication number
- FR739681A FR739681A FR739681DA FR739681A FR 739681 A FR739681 A FR 739681A FR 739681D A FR739681D A FR 739681DA FR 739681 A FR739681 A FR 739681A
- Authority
- FR
- France
- 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
- 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
- H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
- H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
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- 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
- G10K11/08—Non-electric sound-amplifying devices, e.g. non-electric megaphones
-
- 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
- H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
- H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR403843X | 1932-06-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR739681A true FR739681A (ko) | 1933-01-16 |
Family
ID=8897036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR739681D Expired FR739681A (ko) | 1932-06-03 | 1932-06-03 |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR739681A (ko) |
GB (1) | GB403843A (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2213551A1 (ko) * | 1973-01-05 | 1974-08-02 | Portela Seijo Juan | |
FR2459599A1 (fr) * | 1979-06-14 | 1981-01-09 | Lagarrigue Jacques | Enceinte acoustique de salon a tuyaux |
DE3843050A1 (de) * | 1987-12-25 | 1989-07-06 | Yamaha Corp | Elektrischer akustikwandler |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3138257C2 (de) * | 1981-09-25 | 1988-02-11 | Brunnquell GmbH Fabrik elektrotechnischer Apparate, 8070 Ingolstadt | Elektronischer Gong |
GB2302231B (en) * | 1995-03-14 | 1999-01-13 | Matsushita Electric Ind Co Ltd | Speaker system |
US10419846B2 (en) | 2015-05-07 | 2019-09-17 | Acoustic 3D Holdings Ltd | Acoustical diffusion manifold |
-
1932
- 1932-06-03 FR FR739681D patent/FR739681A/fr not_active Expired
-
1933
- 1933-03-14 GB GB7754/33A patent/GB403843A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2213551A1 (ko) * | 1973-01-05 | 1974-08-02 | Portela Seijo Juan | |
FR2459599A1 (fr) * | 1979-06-14 | 1981-01-09 | Lagarrigue Jacques | Enceinte acoustique de salon a tuyaux |
DE3843050A1 (de) * | 1987-12-25 | 1989-07-06 | Yamaha Corp | Elektrischer akustikwandler |
DE3843050C2 (de) * | 1987-12-25 | 1998-01-15 | Yamaha Corp | Elektrischer Akustikwandler |
Also Published As
Publication number | Publication date |
---|---|
GB403843A (en) | 1934-01-04 |