JPS55100769A - Digital information transmission system - Google Patents

Digital information transmission system

Info

Publication number
JPS55100769A
JPS55100769A JP702479A JP702479A JPS55100769A JP S55100769 A JPS55100769 A JP S55100769A JP 702479 A JP702479 A JP 702479A JP 702479 A JP702479 A JP 702479A JP S55100769 A JPS55100769 A JP S55100769A
Authority
JP
Japan
Prior art keywords
transmission system
converter
information transmission
digital information
varies
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
JP702479A
Other languages
Japanese (ja)
Inventor
Yoshifumi Sasaki
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.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin Electric Corp
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 Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP702479A priority Critical patent/JPS55100769A/en
Publication of JPS55100769A publication Critical patent/JPS55100769A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/04—Channels characterised by the type of signal the signals being represented by different amplitudes or polarities, e.g. quadriplex

Abstract

PURPOSE:To obtain economic transmission system reducing transmission lines in number by weighting several pieces of information transmitted. CONSTITUTION:Transmission unit 22 is equipped with keys (a), (b), (c) and (d) and weighting resistances R2, 4R and 8R, and reception unit 24 with constant-current source 25 and A/D converter 26. Both the units are connected together via a couple of transmission lines 23. With one of keys depressed, a path where constant current I flows varies in resistance value, and consequently a voltage value appearing at A/D converter 26 also varies. This voltage value is detected and converted into a corresponding digital value, so that information will be transmitted.
JP702479A 1979-01-26 1979-01-26 Digital information transmission system Pending JPS55100769A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP702479A JPS55100769A (en) 1979-01-26 1979-01-26 Digital information transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP702479A JPS55100769A (en) 1979-01-26 1979-01-26 Digital information transmission system

Publications (1)

Publication Number Publication Date
JPS55100769A true JPS55100769A (en) 1980-07-31

Family

ID=11654463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP702479A Pending JPS55100769A (en) 1979-01-26 1979-01-26 Digital information transmission system

Country Status (1)

Country Link
JP (1) JPS55100769A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5737595A (en) * 1980-08-14 1982-03-01 Tominaga Oil Pump Inputting transmitting device for information of lubrication in lubricating device
JPH0349496A (en) * 1989-07-18 1991-03-04 Noritz Corp Remote controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5737595A (en) * 1980-08-14 1982-03-01 Tominaga Oil Pump Inputting transmitting device for information of lubrication in lubricating device
JPH0349496A (en) * 1989-07-18 1991-03-04 Noritz Corp Remote controller

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