FR763847A - Improvements to the sound emitting devices of talking machines, t. s. f., amplifiers and the like - Google Patents
Improvements to the sound emitting devices of talking machines, t. s. f., amplifiers and the likeInfo
- Publication number
- FR763847A FR763847A FR763847DA FR763847A FR 763847 A FR763847 A FR 763847A FR 763847D A FR763847D A FR 763847DA FR 763847 A FR763847 A FR 763847A
- Authority
- FR
- France
- Prior art keywords
- amplifiers
- emitting devices
- sound emitting
- talking machines
- talking
- 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
- H04R1/2838—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
- 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 |
---|---|---|---|
FR763847T | 1933-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR763847A true FR763847A (en) | 1934-05-07 |
Family
ID=9181317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR763847D Expired FR763847A (en) | 1933-02-01 | 1933-02-01 | Improvements to the sound emitting devices of talking machines, t. s. f., amplifiers and the like |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR763847A (en) |
-
1933
- 1933-02-01 FR FR763847D patent/FR763847A/en not_active Expired
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