BE474810A - - Google Patents
Info
- Publication number
- BE474810A BE474810A BE474810DA BE474810A BE 474810 A BE474810 A BE 474810A BE 474810D A BE474810D A BE 474810DA BE 474810 A BE474810 A BE 474810A
- Authority
- BE
- Belgium
- Prior art keywords
- transmission arrangement
- diaphragm
- arrangement according
- central electrode
- resonance
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 description 9
- 210000000056 organ Anatomy 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000007789 sealing Methods 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
- H04R21/021—Microphones with granular resistance material
-
- 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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
- H04R1/265—Spatial arrangements of separate transducers responsive to two or more frequency ranges of microphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Telephone Set Structure (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE474810A true BE474810A (enrdf_load_stackoverflow) |
Family
ID=123713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474810D BE474810A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE474810A (enrdf_load_stackoverflow) |
-
0
- BE BE474810D patent/BE474810A/fr unknown
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