JPS5690656A - Wire transmission system - Google Patents

Wire transmission system

Info

Publication number
JPS5690656A
JPS5690656A JP16755479A JP16755479A JPS5690656A JP S5690656 A JPS5690656 A JP S5690656A JP 16755479 A JP16755479 A JP 16755479A JP 16755479 A JP16755479 A JP 16755479A JP S5690656 A JPS5690656 A JP S5690656A
Authority
JP
Japan
Prior art keywords
wire transmission
signal
center station
waveform
transmission system
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
JP16755479A
Other languages
Japanese (ja)
Inventor
Hitoshi Yamamoto
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP16755479A priority Critical patent/JPS5690656A/en
Publication of JPS5690656A publication Critical patent/JPS5690656A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To constitute a wire transmission system at a low cost by transmitting information for response, only by changing waveforms of a clock pulse string by alternating ''0'' and ''1'' signals consisting of a prescribed mark signal and space signal transmitted from a center station. CONSTITUTION:At each terminal station, digital signal B transmitted from a center station via a common two-wire transmission line is received and when response to it should be made, a signal of ''1'' and ''0'' in waveform C, for example, turns on- off switching transistor T2 to obtain a signal in waveform D, which is sent back to the center station. Even if terminals P3 and P4 of the two-wire transmission line are connected reversely to the balanced bridge circuit composed of diodes D1-D4, no trouble occurs to transistor T2, etc., of the terminal station. Therefore, the time required for wiring construction, etc., can be shortened.
JP16755479A 1979-12-25 1979-12-25 Wire transmission system Pending JPS5690656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16755479A JPS5690656A (en) 1979-12-25 1979-12-25 Wire transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16755479A JPS5690656A (en) 1979-12-25 1979-12-25 Wire transmission system

Publications (1)

Publication Number Publication Date
JPS5690656A true JPS5690656A (en) 1981-07-22

Family

ID=15851867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16755479A Pending JPS5690656A (en) 1979-12-25 1979-12-25 Wire transmission system

Country Status (1)

Country Link
JP (1) JPS5690656A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075150A (en) * 1983-09-30 1985-04-27 Nec Corp Terminal device
JPS6146643A (en) * 1984-08-11 1986-03-06 Matsushita Electric Works Ltd Time division multiplex transmitter
JPH05193377A (en) * 1992-03-19 1993-08-03 Yanmar Diesel Engine Co Ltd Excavating machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52124810A (en) * 1976-04-12 1977-10-20 Mitsubishi Electric Corp Information transmission
JPS5250622B2 (en) * 1972-07-19 1977-12-26
JPS5337344A (en) * 1976-09-17 1978-04-06 Ricoh Co Ltd Data collecting system
JPS54112106A (en) * 1978-02-23 1979-09-01 Sony Corp Data transmission system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250622B2 (en) * 1972-07-19 1977-12-26
JPS52124810A (en) * 1976-04-12 1977-10-20 Mitsubishi Electric Corp Information transmission
JPS5337344A (en) * 1976-09-17 1978-04-06 Ricoh Co Ltd Data collecting system
JPS54112106A (en) * 1978-02-23 1979-09-01 Sony Corp Data transmission system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075150A (en) * 1983-09-30 1985-04-27 Nec Corp Terminal device
JPS6146643A (en) * 1984-08-11 1986-03-06 Matsushita Electric Works Ltd Time division multiplex transmitter
JPH05193377A (en) * 1992-03-19 1993-08-03 Yanmar Diesel Engine Co Ltd Excavating machine

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