BE337501A - - Google Patents
Info
- Publication number
- BE337501A BE337501A BE337501DA BE337501A BE 337501 A BE337501 A BE 337501A BE 337501D A BE337501D A BE 337501DA BE 337501 A BE337501 A BE 337501A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers
- H04R3/04—Circuits for transducers for correcting frequency response
- H04R3/08—Circuits for transducers for correcting frequency response of electromagnetic transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65472A US1599418A (en) | 1925-10-28 | 1925-10-28 | Sound-reproducing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE337501A true BE337501A (mo) |
Family
ID=22062953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE337501D BE337501A (mo) | 1925-10-28 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1599418A (mo) |
| BE (1) | BE337501A (mo) |
-
0
- BE BE337501D patent/BE337501A/xx unknown
-
1925
- 1925-10-28 US US65472A patent/US1599418A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1599418A (en) | 1926-09-14 |