BE538719A - - Google Patents
Info
- Publication number
- BE538719A BE538719A BE538719DA BE538719A BE 538719 A BE538719 A BE 538719A BE 538719D A BE538719D A BE 538719DA BE 538719 A BE538719 A BE 538719A
- Authority
- BE
- Belgium
- Prior art keywords
- microphone
- crown
- loudspeaker
- frame
- desc
- Prior art date
Links
- 210000000078 claw Anatomy 0.000 claims description 4
- 238000001228 spectrum Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 239000002966 varnish Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/62—Constructional arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Telephone Set Structure (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE538719A true BE538719A (OSRAM) |
Family
ID=168652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE538719D BE538719A (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE538719A (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4811406A (en) * | 1982-03-31 | 1989-03-07 | Pioneer Electronic Corporation | Compound speaker system |
-
0
- BE BE538719D patent/BE538719A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4811406A (en) * | 1982-03-31 | 1989-03-07 | Pioneer Electronic Corporation | Compound speaker system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2219152A1 (fr) | Combine telephonique | |
| EP0276996A2 (en) | Microphone | |
| CN210274456U (zh) | 耳机 | |
| WO2016197412A1 (zh) | 适用于骨传导耳机的大功率振子 | |
| US20080298623A1 (en) | Adapter For a Loudspeaker | |
| FR2717031A1 (fr) | Enceinte acoustique pourvu d'un radiateur passif interne. | |
| TWM508867U (zh) | 中心降噪喇叭結構 | |
| WO2007050219A3 (en) | Audio porting assembly | |
| FR2894425A3 (fr) | Ecouteur de reception et de transmission anti-parasites. | |
| CN210579147U (zh) | 一种降噪耳机 | |
| KR102692660B1 (ko) | 마이크 오디오 입력 신호의 수동 잡음 감소를 제공하는 휴대폰 커버 | |
| JP5118987B2 (ja) | 単一指向性コンデンサマイクロホンユニットおよびラインマイクロホン | |
| CN210609653U (zh) | 一种前腔音嘴内置麦克风降噪耳机 | |
| US20080159576A1 (en) | Condenser microphone | |
| US20070047739A1 (en) | Low-noise transmitting receiving earset | |
| BE538719A (OSRAM) | ||
| JP3063297U (ja) | スピ―カの取付構造 | |
| JP2005286500A (ja) | 補聴器用マイク付きイヤホン | |
| CN212677367U (zh) | 一种降噪耳机 | |
| CN218830560U (zh) | 一种集成麦克风的降噪耳机喇叭 | |
| US2522859A (en) | Electrodynamic loudspeaker and mounting therefor | |
| KR100767390B1 (ko) | 이퀄라이저 기능을 가진 이어폰 | |
| KR101441821B1 (ko) | 귀걸이형 이어폰 거치 장치 | |
| JP5227698B2 (ja) | 単一指向性コンデンサマイクロホン | |
| CN220292157U (zh) | 一种降噪型麦克风结构 |