JPS541401B2 - - Google Patents
Info
- Publication number
- JPS541401B2 JPS541401B2 JP3164674A JP3164674A JPS541401B2 JP S541401 B2 JPS541401 B2 JP S541401B2 JP 3164674 A JP3164674 A JP 3164674A JP 3164674 A JP3164674 A JP 3164674A JP S541401 B2 JPS541401 B2 JP S541401B2
- 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
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
-
- 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)
- Computer Networks & Wireless Communication (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Interface Circuits In Exchanges (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00343825A US3828146A (en) | 1973-03-22 | 1973-03-22 | Time division conference hybrid circuit |
| US00343824A US3835259A (en) | 1973-03-22 | 1973-03-22 | Time division conference hybrid circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS49129410A JPS49129410A (en) | 1974-12-11 |
| JPS541401B2 true JPS541401B2 (en) | 1979-01-24 |
Family
ID=26993649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3164674A Expired JPS541401B2 (en) | 1973-03-22 | 1974-03-22 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS541401B2 (en) |
| FR (1) | FR2222820B1 (en) |
| GB (1) | GB1447693A (en) |
| IT (1) | IT1009345B (en) |
| NL (1) | NL176419C (en) |
| SE (1) | SE396685B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI79769C (en) * | 1988-06-10 | 1991-01-14 | Heikki Malkki | SNABBTELEFONSYSTEM SAMT FOERFARANDE FOER UPPKOPPLING I ETT SNABBTELEFONSYSTEM. |
| JPH02218290A (en) * | 1989-02-17 | 1990-08-30 | Nec Corp | Digital exchange |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3789154A (en) * | 1972-12-11 | 1974-01-29 | Bell Telephone Labor Inc | Switchhook status signaling arrangement |
| US3789152A (en) * | 1972-12-11 | 1974-01-29 | Bell Telephone Labor Inc | Data format converter |
| US3787631A (en) * | 1972-12-11 | 1974-01-22 | Bell Telephone Labor Inc | Time slot number compensating arrangement |
-
1974
- 1974-02-25 SE SE7402473A patent/SE396685B/en not_active IP Right Cessation
- 1974-03-12 GB GB1091574A patent/GB1447693A/en not_active Expired
- 1974-03-18 NL NL7403591A patent/NL176419C/en not_active IP Right Cessation
- 1974-03-20 IT IT6786574A patent/IT1009345B/en active
- 1974-03-21 FR FR7409660A patent/FR2222820B1/fr not_active Expired
- 1974-03-22 JP JP3164674A patent/JPS541401B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2413073B2 (en) | 1976-09-16 |
| FR2222820A1 (en) | 1974-10-18 |
| NL7403591A (en) | 1974-09-24 |
| GB1447693A (en) | 1976-08-25 |
| DE2413073A1 (en) | 1974-10-03 |
| NL176419B (en) | 1984-11-01 |
| NL176419C (en) | 1985-04-01 |
| FR2222820B1 (en) | 1979-05-25 |
| IT1009345B (en) | 1976-12-10 |
| JPS49129410A (en) | 1974-12-11 |
| SE396685B (en) | 1977-09-26 |