FR690133A - Appareil orthophone pour émissions de sons - Google Patents
Appareil orthophone pour émissions de sonsInfo
- Publication number
- FR690133A FR690133A FR690133DA FR690133A FR 690133 A FR690133 A FR 690133A FR 690133D A FR690133D A FR 690133DA FR 690133 A FR690133 A FR 690133A
- Authority
- FR
- France
- Prior art keywords
- orthophone
- sound emissions
- emissions
- sound
- orthophone device
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/08—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers separated by air or other fluid
-
- 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
- H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
- H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Multimedia (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR690133T | 1930-02-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR690133A true FR690133A (fr) | 1930-09-16 |
Family
ID=9028151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR690133D Expired FR690133A (fr) | 1930-02-18 | 1930-02-18 | Appareil orthophone pour émissions de sons |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR690133A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1930
- 1930-02-18 FR FR690133D patent/FR690133A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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