JPS5616389A - Exchange control system - Google Patents
Exchange control systemInfo
- Publication number
- JPS5616389A JPS5616389A JP9139079A JP9139079A JPS5616389A JP S5616389 A JPS5616389 A JP S5616389A JP 9139079 A JP9139079 A JP 9139079A JP 9139079 A JP9139079 A JP 9139079A JP S5616389 A JPS5616389 A JP S5616389A
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- circuits
- transmitting
- band
- 3khz
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Exchange Systems With Centralized Control (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9139079A JPS5616389A (en) | 1979-07-18 | 1979-07-18 | Exchange control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9139079A JPS5616389A (en) | 1979-07-18 | 1979-07-18 | Exchange control system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5616389A true JPS5616389A (en) | 1981-02-17 |
JPS6222514B2 JPS6222514B2 (ja) | 1987-05-18 |
Family
ID=14025040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9139079A Granted JPS5616389A (en) | 1979-07-18 | 1979-07-18 | Exchange control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5616389A (ja) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5317004A (en) * | 1976-07-30 | 1978-02-16 | Toshiba Corp | Exchange system |
-
1979
- 1979-07-18 JP JP9139079A patent/JPS5616389A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5317004A (en) * | 1976-07-30 | 1978-02-16 | Toshiba Corp | Exchange system |
Also Published As
Publication number | Publication date |
---|---|
JPS6222514B2 (ja) | 1987-05-18 |
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