FR1019035A - Conduit acoustique - Google Patents
Conduit acoustiqueInfo
- Publication number
- FR1019035A FR1019035A FR1019035DA FR1019035A FR 1019035 A FR1019035 A FR 1019035A FR 1019035D A FR1019035D A FR 1019035DA FR 1019035 A FR1019035 A FR 1019035A
- Authority
- FR
- France
- Prior art keywords
- acoustic duct
- acoustic
- duct
- 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
-
- 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
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/342—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for microphones
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1019035T | 1950-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1019035A true FR1019035A (fr) | 1953-01-15 |
Family
ID=9575368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1019035D Expired FR1019035A (fr) | 1950-05-24 | 1950-05-24 | Conduit acoustique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1019035A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4181193A (en) * | 1976-09-23 | 1980-01-01 | Isaac Timothy P | Sound projection system |
USRE32183E (en) * | 1976-09-23 | 1986-06-17 | Turbosound Group Ltd. | Sound projection system |
-
1950
- 1950-05-24 FR FR1019035D patent/FR1019035A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4181193A (en) * | 1976-09-23 | 1980-01-01 | Isaac Timothy P | Sound projection system |
USRE32183E (en) * | 1976-09-23 | 1986-06-17 | Turbosound Group Ltd. | Sound projection system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR1055862A (fr) | Raccord | |
FR1019035A (fr) | Conduit acoustique | |
FR1033724A (fr) | Amplificateur | |
FR1017738A (fr) | Conduit d'échappement | |
FR1019191A (fr) | Plantoir | |
FR1031609A (fr) | Pipe | |
AT182275B (de) | Rohrverbindung | |
AT171769B (de) | Luftpumpe | |
FR1013227A (fr) | Pipe | |
AT181762B (de) | Rohrverbindung | |
AT184446B (de) | Rohrschleuder | |
FR1040328A (fr) | Perfectionnements aux ventilateurs | |
FR1008402A (fr) | Raccord | |
FR1027404A (fr) | Reporteur de son | |
FR1017116A (fr) | Connexion souple | |
FR1008250A (fr) | Perfectionnements aux serviettes-sacoches | |
FR1054101A (fr) | Tuyau souple | |
FR1026069A (fr) | Appareil microphonique | |
FR1028704A (fr) | Pipe | |
FR1017264A (fr) | Pipe | |
AT169758B (de) | Mikrotelephon | |
FI26270A (fi) | Mikrofon | |
AT169455B (de) | Lautsprecheranordnung | |
FR1016637A (fr) | Raccord de tuyauterie | |
AT174671B (de) | Selbsterregter Transduktor |