JPS54141981A - Monitor signal response system in time-division multiprex transmission - Google Patents

Monitor signal response system in time-division multiprex transmission

Info

Publication number
JPS54141981A
JPS54141981A JP4893878A JP4893878A JPS54141981A JP S54141981 A JPS54141981 A JP S54141981A JP 4893878 A JP4893878 A JP 4893878A JP 4893878 A JP4893878 A JP 4893878A JP S54141981 A JPS54141981 A JP S54141981A
Authority
JP
Japan
Prior art keywords
current
monitor signal
controlled device
control unit
signal
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
JP4893878A
Other languages
Japanese (ja)
Inventor
Isao Shimada
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP4893878A priority Critical patent/JPS54141981A/en
Publication of JPS54141981A publication Critical patent/JPS54141981A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G08C15/06—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division
    • G08C15/12—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division the signals being represented by pulse characteristics in transmission link

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To detect a monitor signal easily in the control unit by making a current constant in the controlled device such that the current variation caused by a monitor signal is approximately constant in any part of the controlled device when the variation is sent to the control unit. CONSTITUTION:An address code signal and a control signal which are fed to the controlled device through the transmission line 1 are voltage-devided by the resisttance R2, R3 and are discriminated by the logic circuit M through the noisecut capacitor C1 and current limit resistance R5. When the reception of address code signal is within a self address time, the transistor T1 is driven by the monitor signal output X of logic circuit M, a sunk current limited by the resistance R1 flows in the transmission line 1, its current variation is detected and reproduced by the control unit. The monitor signal current can be made approximately constant independently of the location of controlled device by adding a constant-current circuit N to the transistor T1.
JP4893878A 1978-04-24 1978-04-24 Monitor signal response system in time-division multiprex transmission Pending JPS54141981A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4893878A JPS54141981A (en) 1978-04-24 1978-04-24 Monitor signal response system in time-division multiprex transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4893878A JPS54141981A (en) 1978-04-24 1978-04-24 Monitor signal response system in time-division multiprex transmission

Publications (1)

Publication Number Publication Date
JPS54141981A true JPS54141981A (en) 1979-11-05

Family

ID=12817200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4893878A Pending JPS54141981A (en) 1978-04-24 1978-04-24 Monitor signal response system in time-division multiprex transmission

Country Status (1)

Country Link
JP (1) JPS54141981A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551766A (en) * 1978-06-20 1980-01-08 Sharp Corp Multiplex transmission system
WO1993004564A1 (en) * 1991-08-23 1993-03-04 Koyo Electronics Industries Co., Ltd. Method and system for transmitting/receiving data

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551766A (en) * 1978-06-20 1980-01-08 Sharp Corp Multiplex transmission system
WO1993004564A1 (en) * 1991-08-23 1993-03-04 Koyo Electronics Industries Co., Ltd. Method and system for transmitting/receiving data

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