IT8468158A0 - Ripetitore per linee telefoniche a circuiti ibridi - Google Patents
Ripetitore per linee telefoniche a circuiti ibridiInfo
- Publication number
- IT8468158A0 IT8468158A0 IT8468158A IT6815884A IT8468158A0 IT 8468158 A0 IT8468158 A0 IT 8468158A0 IT 8468158 A IT8468158 A IT 8468158A IT 6815884 A IT6815884 A IT 6815884A IT 8468158 A0 IT8468158 A0 IT 8468158A0
- Authority
- IT
- Italy
- Prior art keywords
- repeater
- telephone lines
- hybrid circuit
- circuit telephone
- hybrid
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/36—Repeater circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR8401869A BR8401869A (pt) | 1984-04-23 | 1984-04-23 | Repetidor de frequencia de voz |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| IT8468158A0 true IT8468158A0 (it) | 1984-11-20 |
| IT8468158A1 IT8468158A1 (it) | 1986-05-20 |
| IT1180142B IT1180142B (it) | 1987-09-23 |
Family
ID=4035487
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT68158/84A IT1180142B (it) | 1984-04-23 | 1984-11-20 | Ripetitore per linee telefoniche a circuiti ibridi |
| IT8454064U IT8454064V0 (it) | 1984-04-23 | 1984-11-20 | Ripetitore per linee telefoniche a circuiti ibridi |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT8454064U IT8454064V0 (it) | 1984-04-23 | 1984-11-20 | Ripetitore per linee telefoniche a circuiti ibridi |
Country Status (5)
| Country | Link |
|---|---|
| BR (1) | BR8401869A (it) |
| DE (1) | DE3509409A1 (it) |
| FR (1) | FR2563397A1 (it) |
| GB (1) | GB2159021A (it) |
| IT (2) | IT1180142B (it) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2160308B1 (it) * | 1971-11-19 | 1977-01-28 | Labo Cent Telecommunicat | |
| DE2607480C2 (de) * | 1976-02-20 | 1982-11-25 | Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin | Schaltungsanordnung für eine Gabel |
| US4064377A (en) * | 1976-03-11 | 1977-12-20 | Wescom Switching, Inc. | Electronic hybrid and hybrid repeater |
| DE2655005C3 (de) * | 1976-12-02 | 1980-04-17 | Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin | Schaltungsanordnung für eine elektronische Teilnehmerspeisung |
| GB1586410A (en) * | 1978-05-30 | 1981-03-18 | Plessey Co Ltd | Hybrid circuits |
| IT1118946B (it) * | 1979-10-04 | 1986-03-03 | Cselt Centro Studi Lab Telecom | Ricetrasmettitore per trasmissione bidirezionale simultanea di segnali numerici su una linea unica |
| US4331842A (en) * | 1980-02-11 | 1982-05-25 | Reliance Electric Company | Voice frequency repeater and term sets and other circuits therefor |
| GB2087199A (en) * | 1980-10-16 | 1982-05-19 | Texas Instruments Ltd | Amplifiers for driving balanced lines |
| US4443884A (en) * | 1982-03-18 | 1984-04-17 | Protocol Computers, Inc. | Data line interface |
| GB2137057B (en) * | 1983-03-18 | 1986-07-02 | Telspec Ltd | Improvements in and relating to signal transmission devices |
-
1984
- 1984-04-23 BR BR8401869A patent/BR8401869A/pt unknown
- 1984-11-20 IT IT68158/84A patent/IT1180142B/it active
- 1984-11-20 IT IT8454064U patent/IT8454064V0/it unknown
-
1985
- 1985-03-15 DE DE19853509409 patent/DE3509409A1/de not_active Withdrawn
- 1985-03-25 GB GB08507659A patent/GB2159021A/en not_active Withdrawn
- 1985-04-23 FR FR8506156A patent/FR2563397A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE3509409A1 (de) | 1985-10-24 |
| IT1180142B (it) | 1987-09-23 |
| GB8507659D0 (en) | 1985-05-01 |
| FR2563397A1 (fr) | 1985-10-25 |
| BR8401869A (pt) | 1985-11-26 |
| IT8454064V0 (it) | 1984-11-20 |
| IT8468158A1 (it) | 1986-05-20 |
| GB2159021A (en) | 1985-11-20 |
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