JPS5410606A - Synchronizing system for key telephone system - Google Patents
Synchronizing system for key telephone systemInfo
- Publication number
- JPS5410606A JPS5410606A JP7493277A JP7493277A JPS5410606A JP S5410606 A JPS5410606 A JP S5410606A JP 7493277 A JP7493277 A JP 7493277A JP 7493277 A JP7493277 A JP 7493277A JP S5410606 A JPS5410606 A JP S5410606A
- Authority
- JP
- Japan
- Prior art keywords
- key telephone
- synchronizing
- telephone system
- clock pulse
- synchronism
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7493277A JPS5410606A (en) | 1977-06-25 | 1977-06-25 | Synchronizing system for key telephone system |
US05/917,578 US4234765A (en) | 1977-06-25 | 1978-06-21 | Key telephone system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7493277A JPS5410606A (en) | 1977-06-25 | 1977-06-25 | Synchronizing system for key telephone system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5410606A true JPS5410606A (en) | 1979-01-26 |
JPS6151456B2 JPS6151456B2 (ja) | 1986-11-08 |
Family
ID=13561611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7493277A Granted JPS5410606A (en) | 1977-06-25 | 1977-06-25 | Synchronizing system for key telephone system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5410606A (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5792990A (en) * | 1980-12-01 | 1982-06-09 | Nippon Telegr & Teleph Corp <Ntt> | Electronic key telephone device |
JPS634936U (ja) * | 1986-06-24 | 1988-01-13 | ||
JPH0269665U (ja) * | 1988-11-15 | 1990-05-28 |
-
1977
- 1977-06-25 JP JP7493277A patent/JPS5410606A/ja active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5792990A (en) * | 1980-12-01 | 1982-06-09 | Nippon Telegr & Teleph Corp <Ntt> | Electronic key telephone device |
JPH0136310B2 (ja) * | 1980-12-01 | 1989-07-31 | Nippon Telegraph & Telephone | |
JPS634936U (ja) * | 1986-06-24 | 1988-01-13 | ||
JPH0269665U (ja) * | 1988-11-15 | 1990-05-28 |
Also Published As
Publication number | Publication date |
---|---|
JPS6151456B2 (ja) | 1986-11-08 |
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