DE3509409A1 - Stimmfrequenz-verstaerker fuer telefonschaltungen - Google Patents
Stimmfrequenz-verstaerker fuer telefonschaltungenInfo
- Publication number
- DE3509409A1 DE3509409A1 DE19853509409 DE3509409A DE3509409A1 DE 3509409 A1 DE3509409 A1 DE 3509409A1 DE 19853509409 DE19853509409 DE 19853509409 DE 3509409 A DE3509409 A DE 3509409A DE 3509409 A1 DE3509409 A1 DE 3509409A1
- Authority
- DE
- Germany
- Prior art keywords
- frequency amplifier
- signal
- circuit
- amplifiers
- voice frequency
- 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.)
- Withdrawn
Links
- 238000010396 two-hybrid screening Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 description 5
- 230000003321 amplification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 102220518365 Casein kinase I isoform gamma-2_R12A_mutation Human genes 0.000 description 2
- 102220503974 Endogenous retrovirus group K member 6 Rec protein_R13A_mutation Human genes 0.000 description 2
- 102220503970 Endogenous retrovirus group K member 6 Rec protein_R18A_mutation Human genes 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 102220544041 60S ribosomal protein L27_R10A_mutation Human genes 0.000 description 1
- 102220473072 Chemerin-like receptor 2_R14Q_mutation Human genes 0.000 description 1
- 102220473068 Chemerin-like receptor 2_R17Q_mutation Human genes 0.000 description 1
- 102220503968 Endogenous retrovirus group K member 6 Rec protein_R20A_mutation Human genes 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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 (1)
| Publication Number | Publication Date |
|---|---|
| DE3509409A1 true DE3509409A1 (de) | 1985-10-24 |
Family
ID=4035487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19853509409 Withdrawn DE3509409A1 (de) | 1984-04-23 | 1985-03-15 | Stimmfrequenz-verstaerker fuer telefonschaltungen |
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 |
|---|---|
| IT1180142B (it) | 1987-09-23 |
| IT8468158A0 (it) | 1984-11-20 |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |