DE616935C - - Google Patents
Info
- Publication number
- DE616935C DE616935C DENDAT616935D DE616935DA DE616935C DE 616935 C DE616935 C DE 616935C DE NDAT616935 D DENDAT616935 D DE NDAT616935D DE 616935D A DE616935D A DE 616935DA DE 616935 C DE616935 C DE 616935C
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- housing
- sound receiver
- receiver according
- rectangular
- 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.)
- Active
Links
- 239000012528 membrane Substances 0.000 claims description 37
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 14
- 208000032041 Hearing impaired Diseases 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000002775 capsule Substances 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 4
- 206010048865 Hypoacusis Diseases 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R21/00—Variable-resistance transducers
- H04R21/02—Microphones
- H04R21/023—Microphones with more than one granular chamber
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE360517X | 1929-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE616935C true DE616935C (enrdf_load_stackoverflow) |
Family
ID=6294386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT616935D Active DE616935C (enrdf_load_stackoverflow) | 1929-08-17 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1944720A (enrdf_load_stackoverflow) |
| DE (1) | DE616935C (enrdf_load_stackoverflow) |
| GB (1) | GB360517A (enrdf_load_stackoverflow) |
-
0
- DE DENDAT616935D patent/DE616935C/de active Active
-
1930
- 1930-08-15 US US475576A patent/US1944720A/en not_active Expired - Lifetime
- 1930-08-16 GB GB24599/30A patent/GB360517A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB360517A (en) | 1931-11-12 |
| US1944720A (en) | 1934-01-23 |
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