JPS59178851A - 電話機回路 - Google Patents
電話機回路Info
- Publication number
- JPS59178851A JPS59178851A JP58052694A JP5269483A JPS59178851A JP S59178851 A JPS59178851 A JP S59178851A JP 58052694 A JP58052694 A JP 58052694A JP 5269483 A JP5269483 A JP 5269483A JP S59178851 A JPS59178851 A JP S59178851A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- telephone
- circuit
- telephone set
- telephone line
- 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
- 238000001514 detection method Methods 0.000 claims description 35
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 241000270708 Testudinidae Species 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
- H04M1/72502—Cordless telephones with one base station connected to a single line
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Mobile Radio Communication Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58052694A JPS59178851A (ja) | 1983-03-30 | 1983-03-30 | 電話機回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58052694A JPS59178851A (ja) | 1983-03-30 | 1983-03-30 | 電話機回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59178851A true JPS59178851A (ja) | 1984-10-11 |
JPH057909B2 JPH057909B2 (enrdf_load_stackoverflow) | 1993-01-29 |
Family
ID=12921989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58052694A Granted JPS59178851A (ja) | 1983-03-30 | 1983-03-30 | 電話機回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59178851A (enrdf_load_stackoverflow) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61161061A (ja) * | 1985-01-09 | 1986-07-21 | Sanyo Electric Co Ltd | 電話型端末装置 |
JPS63217758A (ja) * | 1987-03-05 | 1988-09-09 | Nec Corp | 分岐電話機 |
JPS63142950U (enrdf_load_stackoverflow) * | 1987-03-09 | 1988-09-20 | ||
JPH04200148A (ja) * | 1990-11-29 | 1992-07-21 | Sharp Corp | 再ダイヤル機能付電話機 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5247641A (en) * | 1975-10-15 | 1977-04-15 | Toshiba Corp | Control device of data buffer |
JPS54154202A (en) * | 1978-05-26 | 1979-12-05 | Nec Corp | Talking protective circuit for multi-telephone |
JPS5676666A (en) * | 1979-11-29 | 1981-06-24 | Nippon Telegr & Teleph Corp <Ntt> | Detection circuit for call-out signal |
JPS56114152U (enrdf_load_stackoverflow) * | 1980-01-31 | 1981-09-02 | ||
JPS59105742A (ja) * | 1982-12-09 | 1984-06-19 | Toshiba Corp | 呼出信号検出回路 |
-
1983
- 1983-03-30 JP JP58052694A patent/JPS59178851A/ja active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5247641A (en) * | 1975-10-15 | 1977-04-15 | Toshiba Corp | Control device of data buffer |
JPS54154202A (en) * | 1978-05-26 | 1979-12-05 | Nec Corp | Talking protective circuit for multi-telephone |
JPS5676666A (en) * | 1979-11-29 | 1981-06-24 | Nippon Telegr & Teleph Corp <Ntt> | Detection circuit for call-out signal |
JPS56114152U (enrdf_load_stackoverflow) * | 1980-01-31 | 1981-09-02 | ||
JPS59105742A (ja) * | 1982-12-09 | 1984-06-19 | Toshiba Corp | 呼出信号検出回路 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61161061A (ja) * | 1985-01-09 | 1986-07-21 | Sanyo Electric Co Ltd | 電話型端末装置 |
JPS63217758A (ja) * | 1987-03-05 | 1988-09-09 | Nec Corp | 分岐電話機 |
JPS63142950U (enrdf_load_stackoverflow) * | 1987-03-09 | 1988-09-20 | ||
JPH04200148A (ja) * | 1990-11-29 | 1992-07-21 | Sharp Corp | 再ダイヤル機能付電話機 |
Also Published As
Publication number | Publication date |
---|---|
JPH057909B2 (enrdf_load_stackoverflow) | 1993-01-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH03175777A (ja) | 接続装置 | |
EP0489215B1 (en) | Coupling device to be connected to a DCE for the connection to a public switched telephone network having a local power supply circuit for allowing the use of the local telephone, DCE and workstation including the same | |
JPS59178851A (ja) | 電話機回路 | |
JPH04233891A (ja) | ボタン電話用インタフェース装置 | |
US5867560A (en) | Remote hang-up detector | |
CA1148676A (en) | On-hook/off-hook status check circuit | |
JP2522867B2 (ja) | 住宅情報通報システム | |
JP2524882B2 (ja) | 通信管理装置 | |
JPH0767131B2 (ja) | 網制御回路 | |
JP2691624B2 (ja) | 緊急通報用電話端末装置 | |
JP2532811B2 (ja) | 網制御装置 | |
JP2804551B2 (ja) | 家庭用簡易交換装置 | |
KR0118331Y1 (ko) | 전화기의 훅 오프 상태 복구장치 | |
JPH0614540Y2 (ja) | 公衆電話機の着信回路 | |
JP2528507Y2 (ja) | 電話回線の交流信号受信回路 | |
JPH03211946A (ja) | 端末設備呼出信号の検出方法 | |
JP2908772B2 (ja) | 回線切換装置 | |
JP2947965B2 (ja) | リンガー制御回路 | |
JP2863156B2 (ja) | 回線切換装置 | |
JPS6025677Y2 (ja) | 通報と通話との切換装置 | |
JPH03276948A (ja) | 留守番電話機 | |
JPS59215160A (ja) | 電話装置 | |
JPS63161767A (ja) | 網接続制御装置 | |
JPS62210762A (ja) | 発信者識別用電話装置 | |
JPH04179352A (ja) | コードレス電話機 |