JPS57185751A - Data signal reception circuit - Google Patents

Data signal reception circuit

Info

Publication number
JPS57185751A
JPS57185751A JP7120381A JP7120381A JPS57185751A JP S57185751 A JPS57185751 A JP S57185751A JP 7120381 A JP7120381 A JP 7120381A JP 7120381 A JP7120381 A JP 7120381A JP S57185751 A JPS57185751 A JP S57185751A
Authority
JP
Japan
Prior art keywords
data signal
diodes
current
terminal
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
JP7120381A
Other languages
Japanese (ja)
Inventor
Yasuyoshi Nagao
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 JP7120381A priority Critical patent/JPS57185751A/en
Publication of JPS57185751A publication Critical patent/JPS57185751A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0264—Arrangements for coupling to transmission lines
    • H04L25/0266—Arrangements for providing Galvanic isolation, e.g. by means of magnetic or capacitive coupling
    • H04L25/0268—Arrangements for providing Galvanic isolation, e.g. by means of magnetic or capacitive coupling with modulation and subsequent demodulation

Landscapes

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

Abstract

PURPOSE:To enable the reception of a tri-state data with a simple constitution, by operating an exclusive use diode switch and a rectifying circuit depending on an input signal whether it is a mark or a space and cutting off the said diode when the input signal is zero. CONSTITUTION:When a space signal of minus polarity is applied to a terminal 22 based on a terminal 21, diodes 29 and 31 are turned on, and an AC current from an oscillator 23 is transmitted to a transformer 35 via the diodes 29 and 31. The current is converted into a DC with a rectifying circuit 37 and a data signal with minus polarity is obtained at a terminal 41. When a mark signal with plus polarity is inputted, diodes 32 and 34 are turned on, the AC current from the oscillator 23 is rectified at a rectifying circuit 38 and a data signal with plus polarity is obtained at the output terminal 41. On the other hand, if the input data signal is zero, the diodes 29,31 and 32,34 are all turned off, the AC current from the transformer 24 is interrupted and the output at the output terminal 41 is also brought to zero.
JP7120381A 1981-05-11 1981-05-11 Data signal reception circuit Pending JPS57185751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7120381A JPS57185751A (en) 1981-05-11 1981-05-11 Data signal reception circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7120381A JPS57185751A (en) 1981-05-11 1981-05-11 Data signal reception circuit

Publications (1)

Publication Number Publication Date
JPS57185751A true JPS57185751A (en) 1982-11-16

Family

ID=13453876

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7120381A Pending JPS57185751A (en) 1981-05-11 1981-05-11 Data signal reception circuit

Country Status (1)

Country Link
JP (1) JPS57185751A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200033865A (en) * 2017-07-21 2020-03-30 가부시키가이샤 멘테크 Nozzle cap, nozzle device provided with the same, and method for dispersing chemicals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200033865A (en) * 2017-07-21 2020-03-30 가부시키가이샤 멘테크 Nozzle cap, nozzle device provided with the same, and method for dispersing chemicals

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