AU515433B2 - Line amplifier - Google Patents
Line amplifierInfo
- Publication number
- AU515433B2 AU515433B2 AU41797/78A AU4179778A AU515433B2 AU 515433 B2 AU515433 B2 AU 515433B2 AU 41797/78 A AU41797/78 A AU 41797/78A AU 4179778 A AU4179778 A AU 4179778A AU 515433 B2 AU515433 B2 AU 515433B2
- Authority
- AU
- Australia
- Prior art keywords
- line amplifier
- amplifier
- line
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
- H04B17/401—Monitoring; Testing of relay systems with selective localization
- H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
- H04B17/403—Monitoring; Testing of relay systems with selective localization using different frequencies generated by local oscillators
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Fire Alarms (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2753465A DE2753465C2 (en) | 1977-11-30 | 1977-11-30 | Line amplifier for four-wire communications equipment |
| DEDE2753465 | 1977-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU4179778A AU4179778A (en) | 1979-06-07 |
| AU515433B2 true AU515433B2 (en) | 1981-04-02 |
Family
ID=6025020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU41797/78A Expired AU515433B2 (en) | 1977-11-30 | 1978-11-22 | Line amplifier |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS54100212A (en) |
| AT (1) | AT375509B (en) |
| AU (1) | AU515433B2 (en) |
| DE (1) | DE2753465C2 (en) |
| DK (1) | DK534678A (en) |
| IT (1) | IT1101136B (en) |
| NL (1) | NL7811729A (en) |
| NO (1) | NO145969C (en) |
| SE (1) | SE7812133L (en) |
| YU (1) | YU40050B (en) |
-
1977
- 1977-11-30 DE DE2753465A patent/DE2753465C2/en not_active Expired
-
1978
- 1978-11-22 AU AU41797/78A patent/AU515433B2/en not_active Expired
- 1978-11-24 IT IT30133/78A patent/IT1101136B/en active
- 1978-11-24 SE SE7812133A patent/SE7812133L/en unknown
- 1978-11-28 YU YU2811/78A patent/YU40050B/en unknown
- 1978-11-29 NO NO784019A patent/NO145969C/en unknown
- 1978-11-29 DK DK534978A patent/DK534678A/en unknown
- 1978-11-30 JP JP14732078A patent/JPS54100212A/en active Pending
- 1978-11-30 AT AT0857578A patent/AT375509B/en not_active IP Right Cessation
- 1978-11-30 NL NL7811729A patent/NL7811729A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NO145969C (en) | 1982-06-30 |
| AT375509B (en) | 1984-08-10 |
| NO784019L (en) | 1979-05-31 |
| YU40050B (en) | 1985-06-30 |
| SE7812133L (en) | 1979-05-31 |
| YU281178A (en) | 1983-04-30 |
| AU4179778A (en) | 1979-06-07 |
| JPS54100212A (en) | 1979-08-07 |
| DE2753465C2 (en) | 1979-10-04 |
| DK534678A (en) | 1979-05-31 |
| NL7811729A (en) | 1979-06-01 |
| IT1101136B (en) | 1985-09-28 |
| DE2753465B1 (en) | 1979-01-18 |
| IT7830133A0 (en) | 1978-11-24 |
| NO145969B (en) | 1982-03-22 |
| ATA857578A (en) | 1983-12-15 |
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