FR2290116A1 - Circuit de voie pour centre de commutation telephonique et dispositifs de commutation utilisant ce circuit - Google Patents
Circuit de voie pour centre de commutation telephonique et dispositifs de commutation utilisant ce circuitInfo
- Publication number
- FR2290116A1 FR2290116A1 FR7436490A FR7436490A FR2290116A1 FR 2290116 A1 FR2290116 A1 FR 2290116A1 FR 7436490 A FR7436490 A FR 7436490A FR 7436490 A FR7436490 A FR 7436490A FR 2290116 A1 FR2290116 A1 FR 2290116A1
- Authority
- FR
- France
- Prior art keywords
- circuit
- telephone
- switching devices
- switching
- switching center
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Signal Processing (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Mobile Radio Communication Systems (AREA)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7436490A FR2290116A1 (fr) | 1974-10-31 | 1974-10-31 | Circuit de voie pour centre de commutation telephonique et dispositifs de commutation utilisant ce circuit |
CA238,606A CA1061482A (fr) | 1974-10-31 | 1975-10-27 | Appareil et montage de commutation pour centre de commutation telephonique |
DE2548280A DE2548280C3 (de) | 1974-10-31 | 1975-10-28 | Vermittlungsanordnung nach dem Vierdraht-Trägerfrequenzprinzip |
CH1406975A CH608674A5 (fr) | 1974-10-31 | 1975-10-30 | |
DD195070A DD126335A5 (fr) | 1974-10-31 | 1975-10-30 | |
GB45098/75A GB1511498A (en) | 1974-10-31 | 1975-10-30 | Channel switching unit for a telephone switching centre and switching arrangements utilising such units |
NL7512712A NL7512712A (nl) | 1974-10-31 | 1975-10-30 | Kanaal circuit voor een telefooncentrale, en van dit circuit gebruikmakende schakelinrichtingen. |
DD189140A DD125233A5 (fr) | 1974-10-31 | 1975-10-30 | |
US05/627,454 US4024350A (en) | 1974-10-31 | 1975-10-30 | Channel switching unit for a telephone switching center and switching arrangements utilizing such units |
JP50131332A JPS5168108A (en) | 1974-10-31 | 1975-10-31 | Denwakokankyono channerukokanyunitsuto |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7436490A FR2290116A1 (fr) | 1974-10-31 | 1974-10-31 | Circuit de voie pour centre de commutation telephonique et dispositifs de commutation utilisant ce circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2290116A1 true FR2290116A1 (fr) | 1976-05-28 |
FR2290116B1 FR2290116B1 (fr) | 1982-03-19 |
Family
ID=9144614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7436490A Granted FR2290116A1 (fr) | 1974-10-31 | 1974-10-31 | Circuit de voie pour centre de commutation telephonique et dispositifs de commutation utilisant ce circuit |
Country Status (9)
Country | Link |
---|---|
US (1) | US4024350A (fr) |
JP (1) | JPS5168108A (fr) |
CA (1) | CA1061482A (fr) |
CH (1) | CH608674A5 (fr) |
DD (2) | DD126335A5 (fr) |
DE (1) | DE2548280C3 (fr) |
FR (1) | FR2290116A1 (fr) |
GB (1) | GB1511498A (fr) |
NL (1) | NL7512712A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2448260A1 (fr) * | 1979-02-02 | 1980-08-29 | Licentia Gmbh | Procede de connexion de voies ou de groupes de voies entre deux systemes a premodulation et position differente de la voie de base |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4130733A (en) * | 1977-01-10 | 1978-12-19 | International Telephone & Telegraph Corp. | Frequency channel units for a FDM system |
JPS5476611U (fr) * | 1977-11-10 | 1979-05-31 | ||
US4228401A (en) * | 1977-12-22 | 1980-10-14 | Communications Satellite Corporation | Communication satellite transponder interconnection utilizing variable bandpass filter |
Family Cites Families (3)
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 |
FR2204335A5 (fr) * | 1972-10-24 | 1974-05-17 | Cit Alcatel |
-
1974
- 1974-10-31 FR FR7436490A patent/FR2290116A1/fr active Granted
-
1975
- 1975-10-27 CA CA238,606A patent/CA1061482A/fr not_active Expired
- 1975-10-28 DE DE2548280A patent/DE2548280C3/de not_active Expired
- 1975-10-30 NL NL7512712A patent/NL7512712A/xx not_active Application Discontinuation
- 1975-10-30 CH CH1406975A patent/CH608674A5/xx not_active IP Right Cessation
- 1975-10-30 DD DD195070A patent/DD126335A5/xx unknown
- 1975-10-30 DD DD189140A patent/DD125233A5/xx unknown
- 1975-10-30 GB GB45098/75A patent/GB1511498A/en not_active Expired
- 1975-10-30 US US05/627,454 patent/US4024350A/en not_active Expired - Lifetime
- 1975-10-31 JP JP50131332A patent/JPS5168108A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2448260A1 (fr) * | 1979-02-02 | 1980-08-29 | Licentia Gmbh | Procede de connexion de voies ou de groupes de voies entre deux systemes a premodulation et position differente de la voie de base |
Also Published As
Publication number | Publication date |
---|---|
CA1061482A (fr) | 1979-08-28 |
DE2548280B2 (de) | 1979-03-22 |
DD126335A5 (fr) | 1977-07-13 |
US4024350A (en) | 1977-05-17 |
CH608674A5 (fr) | 1979-01-15 |
NL7512712A (nl) | 1976-05-04 |
DE2548280C3 (de) | 1979-11-15 |
DD125233A5 (fr) | 1977-04-06 |
FR2290116B1 (fr) | 1982-03-19 |
DE2548280A1 (de) | 1976-05-20 |
GB1511498A (en) | 1978-05-17 |
JPS5168108A (en) | 1976-06-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |