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
Application number
JP47010027A
Other languages
Japanese (ja)
Other versions
JPS56986B2 (de
Inventor
Masami Takada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP1002772A priority Critical patent/JPS56986B2/ja
Priority to IT1971273A priority patent/IT978558B/it
Priority to DE19732303820 priority patent/DE2303820C2/de
Publication of JPS4879914A publication Critical patent/JPS4879914A/ja
Priority to US423613A priority patent/US3882456A/en
Publication of JPS56986B2 publication Critical patent/JPS56986B2/ja
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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)
JP1002772A 1972-01-26 1972-01-26 Expired JPS56986B2 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1002772A JPS56986B2 (de) 1972-01-26 1972-01-26
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
DE19732303820 DE2303820C2 (de) 1972-01-26 1973-01-26 Schaltungsanordnung zur Fehlererkennung bei der Übertragung digitaler Signale in einem Mikrowellen-Relaissystem
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 (de) 1972-01-26 1972-01-26

Publications (2)

Publication Number Publication Date
JPS4879914A true JPS4879914A (de) 1973-10-26
JPS56986B2 JPS56986B2 (de) 1981-01-10

Family

ID=11738901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1002772A Expired JPS56986B2 (de) 1972-01-26 1972-01-26

Country Status (3)

Country Link
JP (1) JPS56986B2 (de)
DE (1) DE2303820C2 (de)
IT (1) IT978558B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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
JPS56986B2 (de) 1981-01-10
DE2303820A1 (de) 1973-08-02
IT978558B (it) 1974-09-20
DE2303820C2 (de) 1983-01-05

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