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.)
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 LtdfiledCriticalNippon Electric Co Ltd
Priority to JP14832278ApriorityCriticalpatent/JPS5574247A/ja
Publication of JPS5574247ApublicationCriticalpatent/JPS5574247A/ja
Publication of JPS6228615B2publicationCriticalpatent/JPS6228615B2/ja
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
H04B1/60—Supervising unattended repeaters
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Signal Processing
(AREA)
Monitoring And Testing Of Transmission In General
(AREA)
JP14832278A1978-11-301978-11-30Line monitor system for radio relay line
GrantedJPS5574247A
(en)
