JPS5261436A - Digital input circuit - Google Patents

Digital input circuit

Info

Publication number
JPS5261436A
JPS5261436A JP13790375A JP13790375A JPS5261436A JP S5261436 A JPS5261436 A JP S5261436A JP 13790375 A JP13790375 A JP 13790375A JP 13790375 A JP13790375 A JP 13790375A JP S5261436 A JPS5261436 A JP S5261436A
Authority
JP
Japan
Prior art keywords
input circuit
digital input
units
sufficient
reduced noise
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.)
Granted
Application number
JP13790375A
Other languages
Japanese (ja)
Other versions
JPS5438022B2 (en
Inventor
Masahiro Yoshida
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 JP13790375A priority Critical patent/JPS5261436A/en
Publication of JPS5261436A publication Critical patent/JPS5261436A/en
Publication of JPS5438022B2 publication Critical patent/JPS5438022B2/ja
Granted legal-status Critical Current

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  • Dc Digital Transmission (AREA)

Abstract

PURPOSE: The use of only l+ m-units (lx m = N) photo coupler is sufficient to perform input of N-units signal. Thus, an economical digital input circuit is obtained with reduced noise intrusion.
COPYRIGHT: (C)1977,JPO&Japio
JP13790375A 1975-11-17 1975-11-17 Digital input circuit Granted JPS5261436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13790375A JPS5261436A (en) 1975-11-17 1975-11-17 Digital input circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13790375A JPS5261436A (en) 1975-11-17 1975-11-17 Digital input circuit

Publications (2)

Publication Number Publication Date
JPS5261436A true JPS5261436A (en) 1977-05-20
JPS5438022B2 JPS5438022B2 (en) 1979-11-19

Family

ID=15209363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13790375A Granted JPS5261436A (en) 1975-11-17 1975-11-17 Digital input circuit

Country Status (1)

Country Link
JP (1) JPS5261436A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5491155A (en) * 1977-12-28 1979-07-19 Fujitsu Ltd Display input circuit
JPS57202151U (en) * 1981-06-17 1982-12-23
JPS62195802U (en) * 1986-05-30 1987-12-12

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5491155A (en) * 1977-12-28 1979-07-19 Fujitsu Ltd Display input circuit
JPS57202151U (en) * 1981-06-17 1982-12-23
JPS62195802U (en) * 1986-05-30 1987-12-12

Also Published As

Publication number Publication date
JPS5438022B2 (en) 1979-11-19

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