JPS5284387A - Relay process and relay in the frequency time sharing band erasing cen tralized supervisory system - Google Patents

Relay process and relay in the frequency time sharing band erasing cen tralized supervisory system

Info

Publication number
JPS5284387A
JPS5284387A JP15914475A JP15914475A JPS5284387A JP S5284387 A JPS5284387 A JP S5284387A JP 15914475 A JP15914475 A JP 15914475A JP 15914475 A JP15914475 A JP 15914475A JP S5284387 A JPS5284387 A JP S5284387A
Authority
JP
Japan
Prior art keywords
relay
supervisory system
time sharing
frequency time
sharing band
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
JP15914475A
Other languages
Japanese (ja)
Other versions
JPS566750B2 (en
Inventor
Takehiko Hoshino
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 Signal Co Ltd
Original Assignee
Nippon Signal 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 Signal Co Ltd filed Critical Nippon Signal Co Ltd
Priority to JP15914475A priority Critical patent/JPS5284387A/en
Publication of JPS5284387A publication Critical patent/JPS5284387A/en
Publication of JPS566750B2 publication Critical patent/JPS566750B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H04Q9/08—Calling by using continuous AC
    • H04Q9/10—Calling by using continuous AC using single different frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Selective Calling Equipment (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:In the relay in use for the frequency time sharing band erasing centralized supervisory system, to enhance the signal to noise ratio by means of giving output of input multiple frequency as a single frequency along with a start signal frequency.
JP15914475A 1975-12-30 1975-12-30 Relay process and relay in the frequency time sharing band erasing cen tralized supervisory system Granted JPS5284387A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15914475A JPS5284387A (en) 1975-12-30 1975-12-30 Relay process and relay in the frequency time sharing band erasing cen tralized supervisory system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15914475A JPS5284387A (en) 1975-12-30 1975-12-30 Relay process and relay in the frequency time sharing band erasing cen tralized supervisory system

Publications (2)

Publication Number Publication Date
JPS5284387A true JPS5284387A (en) 1977-07-13
JPS566750B2 JPS566750B2 (en) 1981-02-13

Family

ID=15687203

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15914475A Granted JPS5284387A (en) 1975-12-30 1975-12-30 Relay process and relay in the frequency time sharing band erasing cen tralized supervisory system

Country Status (1)

Country Link
JP (1) JPS5284387A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59143966U (en) * 1983-03-14 1984-09-26 株式会社丸愛 packaging bag

Also Published As

Publication number Publication date
JPS566750B2 (en) 1981-02-13

Similar Documents

Publication Publication Date Title
CA972700A (en) Two stage urea dewaxing process
ZA723237B (en) Continuous heat-treatment method for rod-shaped,low-carbon structural steels
CA1000527A (en) Power transmission belt, reinforcement and process
JPS5284387A (en) Relay process and relay in the frequency time sharing band erasing cen tralized supervisory system
JPS51146154A (en) Complex type resonator
JPS5222910A (en) Magnetic head
JPS5274368A (en) Reverberation removal filter
JPS52137964A (en) Preset counter
JPS5283112A (en) Two-ways amplifier
JPS5244482A (en) Wire saw
JPS529421A (en) Speaker equalizer and its production method
JPS5224448A (en) Distributed constant type delay line
JPS51114921A (en) Acoustic converter
JPS5224414A (en) Heterodyne relay system
JPS5292463A (en) Frequency divider
JPS5230311A (en) Signal conveyance method
JPS5534954B2 (en)
JPS527654A (en) Wave distributing filter
JPS5224451A (en) Darlington amplifier
JPS5366312A (en) Impulsive noise eliminator
CA671494A (en) Saw chain links, and method of making same
CA686988A (en) Process for the catalytic oxidation of waste gases
JPS5251848A (en) Signal-noise improvement system of amplifier, etc.
JPS51120152A (en) Monolithic crystal filter
AU259726B2 (en) Process forthe catalytic oxidation of waste. gases