DE265223C - - Google Patents
Info
- Publication number
- DE265223C DE265223C DENDAT265223D DE265223DA DE265223C DE 265223 C DE265223 C DE 265223C DE NDAT265223 D DENDAT265223 D DE NDAT265223D DE 265223D A DE265223D A DE 265223DA DE 265223 C DE265223 C DE 265223C
- Authority
- DE
- Germany
- Prior art keywords
- contact
- sound
- microphone
- plate
- pen
- 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
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 235000003385 Diospyros ebenum Nutrition 0.000 description 3
- 241000792913 Ebenaceae Species 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241000446313 Lamella Species 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 241000218657 Picea Species 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stringed Musical Instruments (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE265223C true DE265223C (enrdf_load_stackoverflow) |
Family
ID=522474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT265223D Active DE265223C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE265223C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT265223D patent/DE265223C/de active Active
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