FR709411A - Device for reproducing sounds with a diffuser acting in two directions - Google Patents
Device for reproducing sounds with a diffuser acting in two directionsInfo
- Publication number
- FR709411A FR709411A FR709411DA FR709411A FR 709411 A FR709411 A FR 709411A FR 709411D A FR709411D A FR 709411DA FR 709411 A FR709411 A FR 709411A
- Authority
- FR
- France
- Prior art keywords
- directions
- reproducing sounds
- diffuser acting
- diffuser
- acting
- 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
- H04R1/22—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
- H04R1/2861—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn
- H04R1/2865—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn for loudspeaker transducers
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 |
---|---|---|---|
DE709411X | 1930-01-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR709411A true FR709411A (en) | 1931-08-06 |
Family
ID=6617859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR709411D Expired FR709411A (en) | 1930-01-15 | 1931-01-15 | Device for reproducing sounds with a diffuser acting in two directions |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR709411A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2642948A (en) * | 1948-05-28 | 1953-06-23 | Rca Corp | Portable radio with a bass-reflex cabinet |
US2777902A (en) * | 1952-08-19 | 1957-01-15 | Columbia Broadcasting Syst Inc | Phonograph cabinet |
DE1024593B (en) * | 1955-01-15 | 1958-02-20 | Werner Pinternagel | Transportable amplifier device with built-in loudspeaker and sound channel |
US9351059B1 (en) * | 2013-09-05 | 2016-05-24 | James R. Suhre | Orthogonal open back speaker system |
-
1931
- 1931-01-15 FR FR709411D patent/FR709411A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2642948A (en) * | 1948-05-28 | 1953-06-23 | Rca Corp | Portable radio with a bass-reflex cabinet |
US2777902A (en) * | 1952-08-19 | 1957-01-15 | Columbia Broadcasting Syst Inc | Phonograph cabinet |
DE1024593B (en) * | 1955-01-15 | 1958-02-20 | Werner Pinternagel | Transportable amplifier device with built-in loudspeaker and sound channel |
US9351059B1 (en) * | 2013-09-05 | 2016-05-24 | James R. Suhre | Orthogonal open back speaker system |
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