JPS5722497B2 - - Google Patents
Info
- Publication number
- JPS5722497B2 JPS5722497B2 JP14142077A JP14142077A JPS5722497B2 JP S5722497 B2 JPS5722497 B2 JP S5722497B2 JP 14142077 A JP14142077 A JP 14142077A JP 14142077 A JP14142077 A JP 14142077A JP S5722497 B2 JPS5722497 B2 JP S5722497B2
- Authority
- JP
- Japan
- 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
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
-
- 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
- H04B17/404—Monitoring; Testing of relay systems with selective localization using different frequencies selected by local filters
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Dc Digital Transmission (AREA)
- Time-Division Multiplex Systems (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722215836 DE2215836C (en) | 1972-03-30 | Method and device for determining errors in intermediate points provided with regenerators in a transmission system operating with pulse code modulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5366314A JPS5366314A (en) | 1978-06-13 |
| JPS5722497B2 true JPS5722497B2 (en) | 1982-05-13 |
Family
ID=5840768
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48036554A Pending JPS499911A (en) | 1972-03-30 | 1973-03-30 | |
| JP14142077A Granted JPS5366314A (en) | 1972-03-30 | 1977-11-25 | Device for detecting trouble in repeater having transmission regenerative repeater operated by pcm |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48036554A Pending JPS499911A (en) | 1972-03-30 | 1973-03-30 |
Country Status (9)
| Country | Link |
|---|---|
| JP (2) | JPS499911A (en) |
| AT (1) | AT334422B (en) |
| AU (1) | AU452876B2 (en) |
| BE (1) | BE797606R (en) |
| CH (1) | CH588192A5 (en) |
| FR (1) | FR2178187B2 (en) |
| GB (1) | GB1394793A (en) |
| IL (1) | IL41861A (en) |
| IT (1) | IT1045340B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2127653B (en) * | 1982-09-15 | 1986-10-15 | Standard Telephones Cables Ltd | Supervision of digital transmission systems |
-
1973
- 1973-03-19 AT AT241873A patent/AT334422B/en not_active IP Right Cessation
- 1973-03-19 GB GB1304473A patent/GB1394793A/en not_active Expired
- 1973-03-21 AU AU53600/73A patent/AU452876B2/en not_active Expired
- 1973-03-23 IL IL41861A patent/IL41861A/en unknown
- 1973-03-26 CH CH432773A patent/CH588192A5/xx not_active IP Right Cessation
- 1973-03-27 IT IT7322172A patent/IT1045340B/en active
- 1973-03-29 FR FR7311357A patent/FR2178187B2/fr not_active Expired
- 1973-03-30 BE BE129509A patent/BE797606R/en not_active IP Right Cessation
- 1973-03-30 JP JP48036554A patent/JPS499911A/ja active Pending
-
1977
- 1977-11-25 JP JP14142077A patent/JPS5366314A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB1394793A (en) | 1975-05-21 |
| FR2178187A2 (en) | 1973-11-09 |
| DE2215836A1 (en) | 1972-12-07 |
| FR2178187B2 (en) | 1977-09-02 |
| IL41861A0 (en) | 1973-05-31 |
| ATA241873A (en) | 1976-05-15 |
| BE797606R (en) | 1973-10-01 |
| CH588192A5 (en) | 1977-05-31 |
| IT1045340B (en) | 1980-05-10 |
| AU452876B2 (en) | 1974-09-19 |
| AU5360073A (en) | 1974-09-19 |
| IL41861A (en) | 1975-10-15 |
| JPS499911A (en) | 1974-01-29 |
| DE2215836B2 (en) | 1972-12-07 |
| AT334422B (en) | 1976-01-10 |
| JPS5366314A (en) | 1978-06-13 |