JPS5537898B2 - - Google Patents
Info
- Publication number
- JPS5537898B2 JPS5537898B2 JP7317475A JP7317475A JPS5537898B2 JP S5537898 B2 JPS5537898 B2 JP S5537898B2 JP 7317475 A JP7317475 A JP 7317475A JP 7317475 A JP7317475 A JP 7317475A JP S5537898 B2 JPS5537898 B2 JP S5537898B2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
- H04M3/561—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities by multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7317475A JPS51149711A (en) | 1975-06-18 | 1975-06-18 | Conference telephone system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7317475A JPS51149711A (en) | 1975-06-18 | 1975-06-18 | Conference telephone system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS51149711A JPS51149711A (en) | 1976-12-22 |
| JPS5537898B2 true JPS5537898B2 (cs) | 1980-10-01 |
Family
ID=13510504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7317475A Granted JPS51149711A (en) | 1975-06-18 | 1975-06-18 | Conference telephone system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS51149711A (cs) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5225508A (en) * | 1975-08-21 | 1977-02-25 | Nippon Telegr & Teleph Corp <Ntt> | Digital conference call unit |
| JPS585635B2 (ja) * | 1977-10-12 | 1983-02-01 | 富士通株式会社 | 時分割交換機における同報通信方式 |
-
1975
- 1975-06-18 JP JP7317475A patent/JPS51149711A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS51149711A (en) | 1976-12-22 |