JPS6151819B2 - - Google Patents
Info
- Publication number
- JPS6151819B2 JPS6151819B2 JP9729780A JP9729780A JPS6151819B2 JP S6151819 B2 JPS6151819 B2 JP S6151819B2 JP 9729780 A JP9729780 A JP 9729780A JP 9729780 A JP9729780 A JP 9729780A JP S6151819 B2 JPS6151819 B2 JP S6151819B2
- Authority
- JP
- Japan
- Prior art keywords
- station
- frequency
- control
- interfon
- carrier frequency
- 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.)
- Expired
Links
- 238000004891 communication Methods 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000012850 discrimination method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
- H04M9/022—Multiplex systems
- H04M9/027—Frequency division multiplex systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9729780A JPS5723355A (en) | 1980-07-15 | 1980-07-15 | Multi-station call equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9729780A JPS5723355A (en) | 1980-07-15 | 1980-07-15 | Multi-station call equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5723355A JPS5723355A (en) | 1982-02-06 |
| JPS6151819B2 true JPS6151819B2 (enrdf_load_stackoverflow) | 1986-11-11 |
Family
ID=14188555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9729780A Granted JPS5723355A (en) | 1980-07-15 | 1980-07-15 | Multi-station call equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5723355A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02136631U (enrdf_load_stackoverflow) * | 1989-04-20 | 1990-11-14 |
-
1980
- 1980-07-15 JP JP9729780A patent/JPS5723355A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02136631U (enrdf_load_stackoverflow) * | 1989-04-20 | 1990-11-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5723355A (en) | 1982-02-06 |
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