DE200614C - - Google Patents
Info
- Publication number
- DE200614C DE200614C DENDAT200614D DE200614DA DE200614C DE 200614 C DE200614 C DE 200614C DE NDAT200614 D DENDAT200614 D DE NDAT200614D DE 200614D A DE200614D A DE 200614DA DE 200614 C DE200614 C DE 200614C
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- sound
- plate
- intermediate plate
- sound tube
- 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 7
- 241000295146 Gallionellaceae Species 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/38—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE200614C true DE200614C (cs) |
Family
ID=463239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT200614D Active DE200614C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE200614C (cs) |
-
0
- DE DENDAT200614D patent/DE200614C/de active Active
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