JPS5577257A - Signal transmitter - Google Patents

Signal transmitter

Info

Publication number
JPS5577257A
JPS5577257A JP15008678A JP15008678A JPS5577257A JP S5577257 A JPS5577257 A JP S5577257A JP 15008678 A JP15008678 A JP 15008678A JP 15008678 A JP15008678 A JP 15008678A JP S5577257 A JPS5577257 A JP S5577257A
Authority
JP
Japan
Prior art keywords
signal
circuit
circuits
output
center station
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.)
Pending
Application number
JP15008678A
Other languages
Japanese (ja)
Inventor
Yuji Kikuchi
Takakazu Sakurai
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15008678A priority Critical patent/JPS5577257A/en
Publication of JPS5577257A publication Critical patent/JPS5577257A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To reduce greatly signal lines in number by providing a center station for signal distribution and then by allowing respective stations to use this center station for signal transmission. CONSTITUTION:Center station 2 is provided with signal distributor circuit 6, and input circuits 8, output circuits 7, input gate circuits 5, and output gate circuits 4 corresponding to respective slave stations 1, and circuits 5 and 4 turn On-OFF under the control of output gate signal (g) of circuit 6. An input signal from one of slave stations 1 is received by circuit 8 and led to circuit 6 as signal (i) with corresponding circuit 5 ON, and output signal (o) is sent to gate 4 for transmission-destination slave station 1 and sent out to the slave station 1 via circuit 7. In this way, center station 2 is provided so as to reduce signal lines in number greatly.
JP15008678A 1978-12-06 1978-12-06 Signal transmitter Pending JPS5577257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15008678A JPS5577257A (en) 1978-12-06 1978-12-06 Signal transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15008678A JPS5577257A (en) 1978-12-06 1978-12-06 Signal transmitter

Publications (1)

Publication Number Publication Date
JPS5577257A true JPS5577257A (en) 1980-06-10

Family

ID=15489197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15008678A Pending JPS5577257A (en) 1978-12-06 1978-12-06 Signal transmitter

Country Status (1)

Country Link
JP (1) JPS5577257A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62136946A (en) * 1985-12-11 1987-06-19 Hitachi Ltd information transmission network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62136946A (en) * 1985-12-11 1987-06-19 Hitachi Ltd information transmission network

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