BE442011A - - Google Patents
Info
- Publication number
- BE442011A BE442011A BE442011DA BE442011A BE 442011 A BE442011 A BE 442011A BE 442011D A BE442011D A BE 442011DA BE 442011 A BE442011 A BE 442011A
- Authority
- BE
- Belgium
- Prior art keywords
- microphone
- cover
- battery
- carried
- holes
- Prior art date
Links
- 239000012528 membrane Substances 0.000 claims description 9
- 239000013078 crystal Substances 0.000 claims description 5
- 239000002775 capsule Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000013016 damping Methods 0.000 claims 1
- 206010011878 Deafness Diseases 0.000 description 8
- 231100000895 deafness Toxicity 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000016354 hearing loss disease Diseases 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000013521 mastic Substances 0.000 description 1
- 230000010355 oscillation 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
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/04—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception comprising pocket amplifiers
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE442011A true BE442011A (cs) |
Family
ID=99344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE442011D BE442011A (cs) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE442011A (cs) |
-
0
- BE BE442011D patent/BE442011A/fr unknown
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