JPS4879914A - - Google Patents
Info
- Publication number
- JPS4879914A JPS4879914A JP47010027A JP1002772A JPS4879914A JP S4879914 A JPS4879914 A JP S4879914A JP 47010027 A JP47010027 A JP 47010027A JP 1002772 A JP1002772 A JP 1002772A JP S4879914 A JPS4879914 A JP S4879914A
- 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.)
- Granted
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Radio Relay Systems (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1002772A JPS56986B2 (US06174465-20010116-C00003.png) | 1972-01-26 | 1972-01-26 | |
DE19732303820 DE2303820C2 (de) | 1972-01-26 | 1973-01-26 | Schaltungsanordnung zur Fehlererkennung bei der Übertragung digitaler Signale in einem Mikrowellen-Relaissystem |
IT1971273A IT978558B (it) | 1972-01-26 | 1973-01-26 | Dispositivo per l individuazione di guasti particolarmente utile in un impianto ripetitore a cana li multiplici |
US423613A US3882456A (en) | 1972-01-26 | 1973-12-10 | Fault-detecting system for a multi-channel relay system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1002772A JPS56986B2 (US06174465-20010116-C00003.png) | 1972-01-26 | 1972-01-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS4879914A true JPS4879914A (US06174465-20010116-C00003.png) | 1973-10-26 |
JPS56986B2 JPS56986B2 (US06174465-20010116-C00003.png) | 1981-01-10 |
Family
ID=11738901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1002772A Expired JPS56986B2 (US06174465-20010116-C00003.png) | 1972-01-26 | 1972-01-26 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS56986B2 (US06174465-20010116-C00003.png) |
DE (1) | DE2303820C2 (US06174465-20010116-C00003.png) |
IT (1) | IT978558B (US06174465-20010116-C00003.png) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52109303A (en) * | 1976-03-10 | 1977-09-13 | Hitachi Ltd | By-pass change-over system |
JPS63232642A (ja) * | 1987-03-20 | 1988-09-28 | Nippon Telegr & Teleph Corp <Ntt> | 移動通信における干渉量測定方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19649305A1 (de) * | 1996-11-28 | 1998-06-04 | Alsthom Cge Alcatel | Hybrides Übertragungssystem mit einer Rückfallösung für Verbindungen mit hohen Anforderungen an die Verfügbarkeit |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH443421A (it) * | 1965-05-06 | 1967-09-15 | Sits Soc It Telecom Siemens | Disposizione di circuiti atta a comandare la commutazione esercizio-riserva in una pluralità di canali hertziani, costituita da più canali di esercizio e da un unico canale di riserva |
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1972
- 1972-01-26 JP JP1002772A patent/JPS56986B2/ja not_active Expired
-
1973
- 1973-01-26 DE DE19732303820 patent/DE2303820C2/de not_active Expired
- 1973-01-26 IT IT1971273A patent/IT978558B/it active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52109303A (en) * | 1976-03-10 | 1977-09-13 | Hitachi Ltd | By-pass change-over system |
JPS63232642A (ja) * | 1987-03-20 | 1988-09-28 | Nippon Telegr & Teleph Corp <Ntt> | 移動通信における干渉量測定方法 |
Also Published As
Publication number | Publication date |
---|---|
DE2303820C2 (de) | 1983-01-05 |
JPS56986B2 (US06174465-20010116-C00003.png) | 1981-01-10 |
DE2303820A1 (de) | 1973-08-02 |
IT978558B (it) | 1974-09-20 |