BE472060A - - Google Patents
Info
- Publication number
- BE472060A BE472060A BE472060DA BE472060A BE 472060 A BE472060 A BE 472060A BE 472060D A BE472060D A BE 472060DA BE 472060 A BE472060 A BE 472060A
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
- H04R9/047—Construction in which the windings of the moving coil lay in the same plane
- H04R9/048—Construction in which the windings of the moving coil lay in the same plane of the ribbon type
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/08—Microphones
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB264459X | 1945-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE472060A true BE472060A (https=) |
Family
ID=10243722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE472060D BE472060A (https=) | 1945-12-11 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2510079A (https=) |
| BE (1) | BE472060A (https=) |
| CH (1) | CH264459A (https=) |
| ES (1) | ES177013A1 (https=) |
| FR (1) | FR936879A (https=) |
| GB (1) | GB625013A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2207833B (en) * | 1987-08-05 | 1990-10-31 | Advanced Acoustics Limited | Microphone assembly |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB160223A (en) * | 1919-11-18 | 1921-03-18 | Adrian Francis Sykes | Improvements in telephonic and like apparatus |
| US1902643A (en) * | 1930-10-30 | 1933-03-21 | Westinghouse Electric & Mfg Co | Electrical translating device |
| US2106224A (en) * | 1933-11-21 | 1938-01-25 | Rca Corp | Device for transforming acoustical energy into electrical energy |
| US2164157A (en) * | 1936-07-11 | 1939-06-27 | Electrical Res Prod Inc | Acoustic device |
| US2141420A (en) * | 1936-07-28 | 1938-12-27 | Bell Telephone Labor Inc | Acoustic device |
| US2183209A (en) * | 1936-09-30 | 1939-12-12 | Rca Corp | Electroacoustical apparatus |
| GB511034A (en) * | 1937-12-31 | 1939-07-31 | Henry John Houlgate | Improvements in and relating to electric acoustic devices |
-
0
- BE BE472060D patent/BE472060A/xx unknown
-
1945
- 1945-12-11 GB GB33460/45A patent/GB625013A/en not_active Expired
-
1946
- 1946-12-10 FR FR936879D patent/FR936879A/fr not_active Expired
- 1946-12-11 CH CH264459D patent/CH264459A/de unknown
- 1946-12-19 US US717261A patent/US2510079A/en not_active Expired - Lifetime
-
1947
- 1947-02-28 ES ES177013A patent/ES177013A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR936879A (fr) | 1948-08-02 |
| US2510079A (en) | 1950-06-06 |
| CH264459A (de) | 1949-10-15 |
| GB625013A (en) | 1949-06-21 |
| ES177013A1 (es) | 1947-04-16 |