FR1152433A - Perfectionnement aux haut-parleurs - Google Patents
Perfectionnement aux haut-parleursInfo
- Publication number
- FR1152433A FR1152433A FR1152433DA FR1152433A FR 1152433 A FR1152433 A FR 1152433A FR 1152433D A FR1152433D A FR 1152433DA FR 1152433 A FR1152433 A FR 1152433A
- Authority
- FR
- France
- Prior art keywords
- speaker training
- speaker
- training
- 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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1152433T | 1956-06-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1152433A true FR1152433A (fr) | 1958-02-17 |
Family
ID=9648392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1152433D Expired FR1152433A (fr) | 1956-06-20 | 1956-06-20 | Perfectionnement aux haut-parleurs |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1152433A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0129320A1 (fr) * | 1983-06-16 | 1984-12-27 | Northern Telecom Limited | Enceinte de haut-parleur pour terminaux de communication vocales |
US4845760A (en) * | 1985-10-25 | 1989-07-04 | Siemens Aktiengesellschaft | Electro-acoustic transducer arranged within the handset of a telephone instrument |
-
1956
- 1956-06-20 FR FR1152433D patent/FR1152433A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0129320A1 (fr) * | 1983-06-16 | 1984-12-27 | Northern Telecom Limited | Enceinte de haut-parleur pour terminaux de communication vocales |
US4845760A (en) * | 1985-10-25 | 1989-07-04 | Siemens Aktiengesellschaft | Electro-acoustic transducer arranged within the handset of a telephone instrument |
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