JPS55123759A - Invalid code set system - Google Patents

Invalid code set system

Info

Publication number
JPS55123759A
JPS55123759A JP3025179A JP3025179A JPS55123759A JP S55123759 A JPS55123759 A JP S55123759A JP 3025179 A JP3025179 A JP 3025179A JP 3025179 A JP3025179 A JP 3025179A JP S55123759 A JPS55123759 A JP S55123759A
Authority
JP
Japan
Prior art keywords
awd
switches
code
diode
gate 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
JP3025179A
Other languages
Japanese (ja)
Inventor
Junya Ishizaki
Masahiro Kajiki
Tsutomu Kunida
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 JP3025179A priority Critical patent/JPS55123759A/en
Publication of JPS55123759A publication Critical patent/JPS55123759A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simplify a circuit constitution to make an outgoing/incoming management unit small-size without constituting a special interface circuit.
CONSTITUTION: The outgoing/incoming management unit which uses a specific code or a personal code as the input and controls an entrance and exit, etc., is provided with invalid code setting operation switch constituted with sum wheel switch group 11. One-unit sum wheel switches AWD are arranged in this sum wheel switch group 11, and common terminal 14 is connected to the input side of switches AWD, and a gate signal is applied to this common terminal from gate signal line 33. Diode 12 is connected to output terminal 13 of switches AWD, and the output end of each diode 12 is connected to data bus line 31, thereby constituting a diode matrix. Then, the gate signal inputted from signal line 33 is outputted to data bus line 31 as an output signal which is coded correspondingly to the code by switches AWD with diodes.
COPYRIGHT: (C)1980,JPO&Japio
JP3025179A 1979-03-15 1979-03-15 Invalid code set system Pending JPS55123759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3025179A JPS55123759A (en) 1979-03-15 1979-03-15 Invalid code set system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3025179A JPS55123759A (en) 1979-03-15 1979-03-15 Invalid code set system

Publications (1)

Publication Number Publication Date
JPS55123759A true JPS55123759A (en) 1980-09-24

Family

ID=12298484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3025179A Pending JPS55123759A (en) 1979-03-15 1979-03-15 Invalid code set system

Country Status (1)

Country Link
JP (1) JPS55123759A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176447A (en) * 1981-04-24 1982-10-29 Fujitsu Ltd A plurality word instantaneous input type digital input circuit system
JPS5933589U (en) * 1982-08-25 1984-03-01 ホーチキ株式会社 Fire alarm equipment repeater
JPS6275524U (en) * 1985-10-29 1987-05-14

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52135220A (en) * 1976-05-07 1977-11-12 Toshiba Corp Information input system of electronic computer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52135220A (en) * 1976-05-07 1977-11-12 Toshiba Corp Information input system of electronic computer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176447A (en) * 1981-04-24 1982-10-29 Fujitsu Ltd A plurality word instantaneous input type digital input circuit system
JPS636896B2 (en) * 1981-04-24 1988-02-12 Fujitsu Ltd
JPS5933589U (en) * 1982-08-25 1984-03-01 ホーチキ株式会社 Fire alarm equipment repeater
JPS6275524U (en) * 1985-10-29 1987-05-14
JPH0426907Y2 (en) * 1985-10-29 1992-06-29

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