DD122455A5 - - Google Patents
Info
- Publication number
- DD122455A5 DD122455A5 DD189107A DD18910775A DD122455A5 DD 122455 A5 DD122455 A5 DD 122455A5 DD 189107 A DD189107 A DD 189107A DD 18910775 A DD18910775 A DD 18910775A DD 122455 A5 DD122455 A5 DD 122455A5
- Authority
- DD
- German Democratic Republic
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/02—Selecting arrangements for multiplex systems for frequency-division multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Mobile Radio Communication Systems (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7436491A FR2290103A1 (fr) | 1974-10-31 | 1974-10-31 | Artere telephonique a points d'acces multiples et reseau comportant de telles arteres |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD122455A5 true DD122455A5 (el) | 1976-10-05 |
Family
ID=9144615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD189107A DD122455A5 (el) | 1974-10-31 | 1975-10-29 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4031326A (el) |
| JP (1) | JPS5168119A (el) |
| CA (1) | CA1061023A (el) |
| DD (1) | DD122455A5 (el) |
| DE (1) | DE2548176C3 (el) |
| FR (1) | FR2290103A1 (el) |
| GB (1) | GB1511499A (el) |
| NL (1) | NL7512715A (el) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA827851B (en) * | 1981-11-04 | 1984-06-27 | Racal Acoustics Ltd | Communication set and method |
| GB2138652B (en) * | 1983-04-23 | 1986-04-23 | Standard Telephones Cables Ltd | Distributed pabx |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3364311A (en) * | 1964-02-07 | 1968-01-16 | Nasa Usa | Elimination of frequency shift in a multiplex communication system |
| US3733438A (en) * | 1971-03-01 | 1973-05-15 | Bell Telephone Labor Inc | Carrier supply for frequency division multiplexed systems |
| US3809815A (en) * | 1972-05-04 | 1974-05-07 | Litton Systems Inc | Communication system utilizing frequency division multiplexing to link a plurality of stations each containing a switchable synthesizer |
| FR2204335A5 (el) * | 1972-10-24 | 1974-05-17 | Cit Alcatel |
-
1974
- 1974-10-31 FR FR7436491A patent/FR2290103A1/fr active Granted
-
1975
- 1975-10-28 DE DE2548176A patent/DE2548176C3/de not_active Expired
- 1975-10-29 DD DD189107A patent/DD122455A5/xx unknown
- 1975-10-30 GB GB45100/75A patent/GB1511499A/en not_active Expired
- 1975-10-30 US US05/627,456 patent/US4031326A/en not_active Expired - Lifetime
- 1975-10-30 NL NL7512715A patent/NL7512715A/xx not_active Application Discontinuation
- 1975-10-31 JP JP50131333A patent/JPS5168119A/ja active Pending
- 1975-10-31 CA CA238,808A patent/CA1061023A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1511499A (en) | 1978-05-17 |
| FR2290103B1 (el) | 1979-10-12 |
| JPS5168119A (el) | 1976-06-12 |
| DE2548176C3 (de) | 1979-11-15 |
| CA1061023A (en) | 1979-08-21 |
| DE2548176A1 (de) | 1976-05-20 |
| FR2290103A1 (fr) | 1976-05-28 |
| NL7512715A (nl) | 1976-05-04 |
| US4031326A (en) | 1977-06-21 |
| DE2548176B2 (de) | 1979-03-22 |