JPS6417543A - Termination display circuit for telephone set - Google Patents
Termination display circuit for telephone setInfo
- Publication number
- JPS6417543A JPS6417543A JP17210887A JP17210887A JPS6417543A JP S6417543 A JPS6417543 A JP S6417543A JP 17210887 A JP17210887 A JP 17210887A JP 17210887 A JP17210887 A JP 17210887A JP S6417543 A JPS6417543 A JP S6417543A
- Authority
- JP
- Japan
- Prior art keywords
- termination
- circuit
- diode
- signals
- driving current
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 abstract 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17210887A JPS6417543A (en) | 1987-07-11 | 1987-07-11 | Termination display circuit for telephone set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17210887A JPS6417543A (en) | 1987-07-11 | 1987-07-11 | Termination display circuit for telephone set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6417543A true JPS6417543A (en) | 1989-01-20 |
Family
ID=15935700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17210887A Pending JPS6417543A (en) | 1987-07-11 | 1987-07-11 | Termination display circuit for telephone set |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6417543A (ja) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5146208B2 (ja) * | 1971-12-03 | 1976-12-08 | ||
| JPS61248646A (ja) * | 1985-04-26 | 1986-11-05 | Nec Corp | 電話機着信表示ランプ回路 |
-
1987
- 1987-07-11 JP JP17210887A patent/JPS6417543A/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5146208B2 (ja) * | 1971-12-03 | 1976-12-08 | ||
| JPS61248646A (ja) * | 1985-04-26 | 1986-11-05 | Nec Corp | 電話機着信表示ランプ回路 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4090038A (en) | Audio signal on hold circuit | |
| CA2114274A1 (en) | Information Services Platform | |
| US4409439A (en) | Controllable telephone call annunciator | |
| US4653094A (en) | Telephone set line status display | |
| US4315109A (en) | Electronic ring sounder for a speaker telephone | |
| CA2172563A1 (en) | Subscriber Line Interface and Power Circuit | |
| JPS6417543A (en) | Termination display circuit for telephone set | |
| IE862984L (en) | Telephone power supply | |
| CA2087373A1 (en) | Telephone apparatus having automatic display function | |
| CA2117648A1 (en) | Circuitry for superimposing small, low energy signals and large, essentially higher energy signals | |
| GB655160A (en) | Telephonograph | |
| CN2156147Y (zh) | 酒瓶用音乐灯光同步装置 | |
| ATE186808T1 (de) | Fernsprechschaltung mit geringer verlustleistung | |
| WO1998026572A3 (en) | Ring-trip circuit | |
| CN2136560Y (zh) | 电话自动录音扩音装置 | |
| KR970010255B1 (en) | Speaker for high and low frequency | |
| KR900007056B1 (ko) | 전화기에 있어서 다기능 표시회로 | |
| AU575072B2 (en) | Subscriber's telephone circuit with key operated pulse generating calling device | |
| JP2530254Y2 (ja) | 電話機の表示回路 | |
| KR950001525B1 (ko) | 전화기의 착신신호 표시 방법 및 장치 | |
| JPS57190449A (en) | Driver for telephone calling sounder | |
| KR100216264B1 (ko) | 전화기의 통화 제어 장치 | |
| JPS61248646A (ja) | 電話機着信表示ランプ回路 | |
| GB1516906A (en) | Circuit for supplying impulses from a telephone instrumen | |
| EP0320295A3 (en) | Analog electronic timepiece |