JPS576744B2 - - Google Patents
Info
- Publication number
- JPS576744B2 JPS576744B2 JP10694076A JP10694076A JPS576744B2 JP S576744 B2 JPS576744 B2 JP S576744B2 JP 10694076 A JP10694076 A JP 10694076A JP 10694076 A JP10694076 A JP 10694076A JP S576744 B2 JPS576744 B2 JP S576744B2
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10694076A JPS5331910A (en) | 1976-09-06 | 1976-09-06 | Conference telephone unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10694076A JPS5331910A (en) | 1976-09-06 | 1976-09-06 | Conference telephone unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5331910A JPS5331910A (en) | 1978-03-25 |
| JPS576744B2 true JPS576744B2 (da) | 1982-02-06 |
Family
ID=14446372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10694076A Granted JPS5331910A (en) | 1976-09-06 | 1976-09-06 | Conference telephone unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5331910A (da) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8006519A (nl) * | 1980-12-01 | 1982-07-01 | Philips Nv | Conferentiestelsel voor telefonie. |
-
1976
- 1976-09-06 JP JP10694076A patent/JPS5331910A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5331910A (en) | 1978-03-25 |