JPS4990004A - - Google Patents
Info
- Publication number
- JPS4990004A JPS4990004A JP48089928A JP8992873A JPS4990004A JP S4990004 A JPS4990004 A JP S4990004A JP 48089928 A JP48089928 A JP 48089928A JP 8992873 A JP8992873 A JP 8992873A JP S4990004 A JPS4990004 A JP S4990004A
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Exchange Systems With Centralized Control (AREA)
- Small-Scale Networks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00313817A US3842218A (en) | 1972-07-10 | 1972-12-11 | Automated telephony testing and polling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4990004A true JPS4990004A (en) | 1974-08-28 |
Family
ID=23217271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48089928A Pending JPS4990004A (en) | 1972-12-11 | 1973-08-10 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS4990004A (en) |
| CA (1) | CA1000391A (en) |
| FR (1) | FR2210070A1 (en) |
| GB (1) | GB1439844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5373017A (en) * | 1976-12-11 | 1978-06-29 | Anritsu Electric Co Ltd | Channel information setting*storing and reading device in telephone channel transmission characteristic measurements |
-
1973
- 1973-06-13 CA CA173,933A patent/CA1000391A/en not_active Expired
- 1973-06-13 GB GB2823673A patent/GB1439844A/en not_active Expired
- 1973-08-10 JP JP48089928A patent/JPS4990004A/ja active Pending
- 1973-08-13 FR FR7329547A patent/FR2210070A1/fr not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5373017A (en) * | 1976-12-11 | 1978-06-29 | Anritsu Electric Co Ltd | Channel information setting*storing and reading device in telephone channel transmission characteristic measurements |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1439844A (en) | 1976-06-16 |
| FR2210070A1 (en) | 1974-07-05 |
| CA1000391A (en) | 1976-11-23 |