JPS5773589A - Subscriber's circuit - Google Patents
Subscriber's circuitInfo
- Publication number
- JPS5773589A JPS5773589A JP14932080A JP14932080A JPS5773589A JP S5773589 A JPS5773589 A JP S5773589A JP 14932080 A JP14932080 A JP 14932080A JP 14932080 A JP14932080 A JP 14932080A JP S5773589 A JPS5773589 A JP S5773589A
- Authority
- JP
- Japan
- Prior art keywords
- resisters
- subscriber
- terminal
- differential amplifier
- amplifier
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/005—Interface circuits for subscriber lines
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14932080A JPS5773589A (en) | 1980-10-27 | 1980-10-27 | Subscriber's circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14932080A JPS5773589A (en) | 1980-10-27 | 1980-10-27 | Subscriber's circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5773589A true JPS5773589A (en) | 1982-05-08 |
Family
ID=15472535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14932080A Pending JPS5773589A (en) | 1980-10-27 | 1980-10-27 | Subscriber's circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5773589A (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6094593A (ja) * | 1983-09-30 | 1985-05-27 | ミテル・コーポレーシヨン | インターフエイス回路、音声データインターフエイス回路および音声データ信号を回路内でインターフエイスする方法 |
US4661978A (en) * | 1983-12-28 | 1987-04-28 | Nec Corporation | Subscriber line interface circuit having an impedence synthesizer |
US4752952A (en) * | 1984-05-18 | 1988-06-21 | Thomson-Csf Telephone | Subscriber circuit link interface for an automatic telephone exchange |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54104712A (en) * | 1978-02-01 | 1979-08-17 | Mitel Canada Ltd | Telephone line circuit |
-
1980
- 1980-10-27 JP JP14932080A patent/JPS5773589A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54104712A (en) * | 1978-02-01 | 1979-08-17 | Mitel Canada Ltd | Telephone line circuit |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6094593A (ja) * | 1983-09-30 | 1985-05-27 | ミテル・コーポレーシヨン | インターフエイス回路、音声データインターフエイス回路および音声データ信号を回路内でインターフエイスする方法 |
US4661978A (en) * | 1983-12-28 | 1987-04-28 | Nec Corporation | Subscriber line interface circuit having an impedence synthesizer |
US4752952A (en) * | 1984-05-18 | 1988-06-21 | Thomson-Csf Telephone | Subscriber circuit link interface for an automatic telephone exchange |
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