DE310033C - - Google Patents
Info
- Publication number
- DE310033C DE310033C DENDAT310033D DE310033DA DE310033C DE 310033 C DE310033 C DE 310033C DE NDAT310033 D DENDAT310033 D DE NDAT310033D DE 310033D A DE310033D A DE 310033DA DE 310033 C DE310033 C DE 310033C
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- sound
- natural oscillation
- weight
- ear
- 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
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
- H04R11/06—Telephone receivers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE327979T | 1918-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE310033C true DE310033C (https=) |
Family
ID=6185521
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT310033D Active DE310033C (https=) | 1918-06-18 | ||
| DE1918327979D Expired DE327979C (de) | 1918-06-18 | 1918-06-18 | Fernhoerer mit hervortretender Eigenschwingung |
| DE1918327978D Expired DE327978C (de) | 1918-06-18 | 1918-06-26 | Fernhoerer mit bervortretender Eigenschwingung |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1918327979D Expired DE327979C (de) | 1918-06-18 | 1918-06-18 | Fernhoerer mit hervortretender Eigenschwingung |
| DE1918327978D Expired DE327978C (de) | 1918-06-18 | 1918-06-26 | Fernhoerer mit bervortretender Eigenschwingung |
Country Status (1)
| Country | Link |
|---|---|
| DE (3) | DE327979C (https=) |
-
0
- DE DENDAT310033D patent/DE310033C/de active Active
-
1918
- 1918-06-18 DE DE1918327979D patent/DE327979C/de not_active Expired
- 1918-06-26 DE DE1918327978D patent/DE327978C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE327979C (de) | 1920-10-20 |
| DE327978C (de) | 1920-10-20 |
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