JPS623549A - ハウリング防止回路 - Google Patents
ハウリング防止回路Info
- Publication number
- JPS623549A JPS623549A JP14352485A JP14352485A JPS623549A JP S623549 A JPS623549 A JP S623549A JP 14352485 A JP14352485 A JP 14352485A JP 14352485 A JP14352485 A JP 14352485A JP S623549 A JPS623549 A JP S623549A
- Authority
- JP
- Japan
- Prior art keywords
- howling
- circuit
- talking
- region
- microphone
- 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.)
- Granted
Links
- 230000002265 prevention Effects 0.000 title claims description 7
- 230000006854 communication Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000009499 grossing Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003197 gene knockdown Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14352485A JPS623549A (ja) | 1985-06-29 | 1985-06-29 | ハウリング防止回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14352485A JPS623549A (ja) | 1985-06-29 | 1985-06-29 | ハウリング防止回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS623549A true JPS623549A (ja) | 1987-01-09 |
JPH0511456B2 JPH0511456B2 (enrdf_load_stackoverflow) | 1993-02-15 |
Family
ID=15340740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14352485A Granted JPS623549A (ja) | 1985-06-29 | 1985-06-29 | ハウリング防止回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS623549A (enrdf_load_stackoverflow) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59229964A (ja) * | 1983-06-11 | 1984-12-24 | Nippon Telegr & Teleph Corp <Ntt> | 音声スイツチ回路 |
JPS6066560A (ja) * | 1983-09-22 | 1985-04-16 | Matsushita Electric Ind Co Ltd | 音響結合防止回路 |
-
1985
- 1985-06-29 JP JP14352485A patent/JPS623549A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59229964A (ja) * | 1983-06-11 | 1984-12-24 | Nippon Telegr & Teleph Corp <Ntt> | 音声スイツチ回路 |
JPS6066560A (ja) * | 1983-09-22 | 1985-04-16 | Matsushita Electric Ind Co Ltd | 音響結合防止回路 |
Also Published As
Publication number | Publication date |
---|---|
JPH0511456B2 (enrdf_load_stackoverflow) | 1993-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5526405A (en) | Cordless telephone apparatus with a speakerphone operation mode cordless | |
JP3617284B2 (ja) | 2線式多局型インターホンシステム | |
US4346261A (en) | Speaker phones | |
JPS623549A (ja) | ハウリング防止回路 | |
US4493950A (en) | Loudspeaker telephone | |
JPH01268242A (ja) | 無線電話機 | |
JPS63187844A (ja) | 無線電話装置 | |
KR100342489B1 (ko) | 이동 무선 단말기에서 이어폰 마이크를 이용한 통화 장치 및 방법 | |
KR200259991Y1 (ko) | 이동전화와 유선전화송수화기 연결 어댑터를 구비한이동전화기용 충전기 | |
GB2209906A (en) | Telephone instrument | |
JPS6298950A (ja) | 電子式電話機の側音制御回路 | |
JPH03262239A (ja) | コードレス電話装置 | |
KR200259992Y1 (ko) | 이동전화와 송수화기의 연결어댑터를 구비한 전화기 | |
JPS6030297A (ja) | 内線ハンドフリ−回路 | |
JP2002314465A (ja) | ハンズフリーフォン | |
JP2580697Y2 (ja) | インターホン装置 | |
JP2002261945A (ja) | インターホン装置 | |
JP2956346B2 (ja) | 電話装置 | |
JPH01253352A (ja) | 拡声通話機 | |
GB2218302A (en) | Hands-free telephone | |
JPH02233092A (ja) | 構内交換機 | |
JPS59111425A (ja) | 会議電話装置 | |
JPH04265042A (ja) | ボタン電話装置 | |
JPS60200677A (ja) | 保留音送出機能付電話機回路 | |
KR19990027214U (ko) | 전화기 |