JPS5396605A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS5396605A
JPS5396605A JP1100777A JP1100777A JPS5396605A JP S5396605 A JPS5396605 A JP S5396605A JP 1100777 A JP1100777 A JP 1100777A JP 1100777 A JP1100777 A JP 1100777A JP S5396605 A JPS5396605 A JP S5396605A
Authority
JP
Japan
Prior art keywords
data transmission
transmission system
signal
occasion
vary
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
JP1100777A
Other languages
Japanese (ja)
Other versions
JPS5934027B2 (en
Inventor
Kazuhiko Shirai
Hirotsugu Ishikawa
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
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP52011007A priority Critical patent/JPS5934027B2/en
Publication of JPS5396605A publication Critical patent/JPS5396605A/en
Publication of JPS5934027B2 publication Critical patent/JPS5934027B2/en
Expired 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/70—Arrangements in the main station, i.e. central controller
    • H04Q2209/75—Arrangements in the main station, i.e. central controller by polling or interrogating the sub-stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Small-Scale Networks (AREA)
  • Communication Control (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:A receiving circuit is used in common at the slave station and only a plural number of delay switching circuits are provided to vary the transmission period of signals from the master station, so that the signal will be used as a polling starting signal or controlling signal upon occasion.
JP52011007A 1977-02-02 1977-02-02 Data transmission method Expired JPS5934027B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52011007A JPS5934027B2 (en) 1977-02-02 1977-02-02 Data transmission method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52011007A JPS5934027B2 (en) 1977-02-02 1977-02-02 Data transmission method

Publications (2)

Publication Number Publication Date
JPS5396605A true JPS5396605A (en) 1978-08-24
JPS5934027B2 JPS5934027B2 (en) 1984-08-20

Family

ID=11766052

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52011007A Expired JPS5934027B2 (en) 1977-02-02 1977-02-02 Data transmission method

Country Status (1)

Country Link
JP (1) JPS5934027B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5552669A (en) * 1978-10-13 1980-04-17 Hashimoto Corp Remote control system and its device via telephone line or the like
JPS61200757A (en) * 1985-03-01 1986-09-05 Hochiki Corp Centralized supervisory equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5552669A (en) * 1978-10-13 1980-04-17 Hashimoto Corp Remote control system and its device via telephone line or the like
JPS639417B2 (en) * 1978-10-13 1988-02-29 Hashimoto Corp
JPS61200757A (en) * 1985-03-01 1986-09-05 Hochiki Corp Centralized supervisory equipment

Also Published As

Publication number Publication date
JPS5934027B2 (en) 1984-08-20

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