IT1029767B - Tastiera senza contatti in particolare per calcolatori elettronici - Google Patents

Tastiera senza contatti in particolare per calcolatori elettronici

Info

Publication number
IT1029767B
IT1029767B IT4822075A IT4822075A IT1029767B IT 1029767 B IT1029767 B IT 1029767B IT 4822075 A IT4822075 A IT 4822075A IT 4822075 A IT4822075 A IT 4822075A IT 1029767 B IT1029767 B IT 1029767B
Authority
IT
Italy
Prior art keywords
keyboard
contacts
electronic calculators
calculators
electronic
Prior art date
Application number
IT4822075A
Other languages
English (en)
Italian (it)
Original Assignee
Kienzle Apparate Gmbh
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
Priority claimed from DE19742408000 external-priority patent/DE2408000C2/de
Application filed by Kienzle Apparate Gmbh filed Critical Kienzle Apparate Gmbh
Application granted granted Critical
Publication of IT1029767B publication Critical patent/IT1029767B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • H03K17/972—Switches controlled by moving an element forming part of the switch using a magnetic movable element having a plurality of control members, e.g. keyboard
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • H03K2017/9706—Inductive element
IT4822075A 1974-02-20 1975-02-18 Tastiera senza contatti in particolare per calcolatori elettronici IT1029767B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742408000 DE2408000C2 (de) 1974-02-20 Kontaktlose Tastatur

Publications (1)

Publication Number Publication Date
IT1029767B true IT1029767B (it) 1979-03-20

Family

ID=5907865

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4822075A IT1029767B (it) 1974-02-20 1975-02-18 Tastiera senza contatti in particolare per calcolatori elettronici

Country Status (3)

Country Link
CH (1) CH579799A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1029767B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE407297B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398180A (en) 1980-06-26 1983-08-09 International Standard Electric Corporation Contactless keyboard

Also Published As

Publication number Publication date
DE2408000B1 (de) 1975-07-24
CH579799A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1976-09-15
SE407297B (sv) 1979-03-19
SE7501814L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-08-21

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