BE433129A - - Google Patents
Info
- Publication number
- BE433129A BE433129A BE433129DA BE433129A BE 433129 A BE433129 A BE 433129A BE 433129D A BE433129D A BE 433129DA BE 433129 A BE433129 A BE 433129A
- Authority
- BE
- Belgium
- Prior art keywords
- telephone
- amplifier
- remote sensor
- communications
- microphone
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
- H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
- H04M1/2155—Acoustic coupling
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Telephone Set Structure (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE433129A true BE433129A (enExample) |
Family
ID=92555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE433129D BE433129A (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE433129A (enExample) |
-
0
- BE BE433129D patent/BE433129A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4456795A (en) | Behind-the-ear type hearing aid | |
| US3396245A (en) | Mode of signal responsive hearing aid apparatus | |
| US6307945B1 (en) | Radio-based hearing aid system | |
| KR101519186B1 (ko) | 안전 이어폰 | |
| KR101059299B1 (ko) | 마이크로폰을 구비한 원격 스피커 제어기 | |
| CN101150885A (zh) | 声换能器 | |
| FR2569927A1 (fr) | Appareil amovible de sonorisation ou/et de visualisation | |
| WO2000070905A3 (en) | Electromagnetic transducer and portable communication device | |
| EP1632107A4 (en) | IMPROVED TELEPHONE HANDSET | |
| BE433129A (enExample) | ||
| KR20060094728A (ko) | Ｉｃ 칩 형태로 구현한 이동통신 단말기의 청취 보조 회로및 이를 내장한 이동통신 단말기 | |
| WO2004112430A1 (en) | Improved telephone handset | |
| US1154069A (en) | Audiphone. | |
| JP2002077352A (ja) | 携帯端末システム | |
| KR101113080B1 (ko) | 스피커를 이용한 진동신호 발생 장치 및 그 제어장치 | |
| CN220673792U (zh) | 一种便携式手柄和无绳电话机 | |
| JP4117097B2 (ja) | 磁気誘導装置付き受信機 | |
| FR2738096A1 (fr) | Systeme de communication mains libres pour un telephone cellulaire | |
| KR860001397Y1 (ko) | 전화기용 보청장치 | |
| KR20170142545A (ko) | 헬름홀츠 공명기 원리를 이용한 스피커 소리 증폭형 휴대폰 케이스 | |
| KR100654553B1 (ko) | Ｉｃ 칩 형태로 구현한 이동통신 단말기의 청취 보조 회로및 이를 내장한 이동통신 단말기 | |
| FR2839846A1 (fr) | Systeme d'aide auditive externe | |
| JP3700794B2 (ja) | 電話機 | |
| BE476341A (enExample) | ||
| CN2266848Y (zh) | 传呼系统电话连接器 |