JPS59134948A - デイジタル中継器の監視方式 - Google Patents

デイジタル中継器の監視方式

Info

Publication number
JPS59134948A
JPS59134948A JP58009781A JP978183A JPS59134948A JP S59134948 A JPS59134948 A JP S59134948A JP 58009781 A JP58009781 A JP 58009781A JP 978183 A JP978183 A JP 978183A JP S59134948 A JPS59134948 A JP S59134948A
Authority
JP
Japan
Prior art keywords
signal
repeater
circuit
frequency
monitoring
Prior art date
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
JP58009781A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0340985B2 (enrdf_load_stackoverflow
Inventor
Yoshihiro Hayashi
林　義博
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP58009781A priority Critical patent/JPS59134948A/ja
Publication of JPS59134948A publication Critical patent/JPS59134948A/ja
Publication of JPH0340985B2 publication Critical patent/JPH0340985B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00439—Physico-chemical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00448—Low heat cements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
JP58009781A 1983-01-24 1983-01-24 デイジタル中継器の監視方式 Granted JPS59134948A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58009781A JPS59134948A (ja) 1983-01-24 1983-01-24 デイジタル中継器の監視方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58009781A JPS59134948A (ja) 1983-01-24 1983-01-24 デイジタル中継器の監視方式

Publications (2)

Publication Number Publication Date
JPS59134948A true JPS59134948A (ja) 1984-08-02
JPH0340985B2 JPH0340985B2 (enrdf_load_stackoverflow) 1991-06-20

Family

ID=11729777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58009781A Granted JPS59134948A (ja) 1983-01-24 1983-01-24 デイジタル中継器の監視方式

Country Status (1)

Country Link
JP (1) JPS59134948A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0340985B2 (enrdf_load_stackoverflow) 1991-06-20

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