NL7800925A - COORDINATE SWITCH. - Google Patents

COORDINATE SWITCH.

Info

Publication number
NL7800925A
NL7800925A NL7800925A NL7800925A NL7800925A NL 7800925 A NL7800925 A NL 7800925A NL 7800925 A NL7800925 A NL 7800925A NL 7800925 A NL7800925 A NL 7800925A NL 7800925 A NL7800925 A NL 7800925A
Authority
NL
Netherlands
Prior art keywords
coordinate switch
coordinate
switch
Prior art date
Application number
NL7800925A
Other languages
Dutch (nl)
Original Assignee
Nedap Nv
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 Nedap Nv filed Critical Nedap Nv
Priority to NL7800925A priority Critical patent/NL7800925A/en
Priority to DE19782848633 priority patent/DE2848633A1/en
Priority to DE19787833328 priority patent/DE7833328U1/en
Priority to GB7902748A priority patent/GB2013333A/en
Priority to FR7901955A priority patent/FR2415921A1/en
Publication of NL7800925A publication Critical patent/NL7800925A/en

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
    • H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
    • H03K17/969—Switches controlled by moving an element forming part of the switch using opto-electronic devices having a plurality of control members, e.g. keyboard
NL7800925A 1978-01-25 1978-01-25 COORDINATE SWITCH. NL7800925A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL7800925A NL7800925A (en) 1978-01-25 1978-01-25 COORDINATE SWITCH.
DE19782848633 DE2848633A1 (en) 1978-01-25 1978-11-09 COORDINATE SWITCHING SYSTEM
DE19787833328 DE7833328U1 (en) 1978-01-25 1978-11-09 COORDINATE SWITCH
GB7902748A GB2013333A (en) 1978-01-25 1979-01-25 Co-ordinate switching systems
FR7901955A FR2415921A1 (en) 1978-01-25 1979-01-25 SWITCH MATRIX

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7800925A NL7800925A (en) 1978-01-25 1978-01-25 COORDINATE SWITCH.

Publications (1)

Publication Number Publication Date
NL7800925A true NL7800925A (en) 1979-07-27

Family

ID=19830226

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7800925A NL7800925A (en) 1978-01-25 1978-01-25 COORDINATE SWITCH.

Country Status (4)

Country Link
DE (2) DE7833328U1 (en)
FR (1) FR2415921A1 (en)
GB (1) GB2013333A (en)
NL (1) NL7800925A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4379968A (en) * 1980-12-24 1983-04-12 Burroughs Corp. Photo-optical keyboard having light attenuating means
DE3151209C2 (en) * 1981-12-23 1983-11-03 Siemens AG, 1000 Berlin und 8000 München Method for controlling the optoelectronic crosspoints of a switching system
DE3535551A1 (en) * 1985-10-04 1987-04-09 Guenter Brueninghaus Keyboard
GB2406944A (en) * 2003-10-09 2005-04-13 Motorola Inc Keyboard switching devices

Also Published As

Publication number Publication date
DE2848633A1 (en) 1979-07-26
DE7833328U1 (en) 1980-05-08
FR2415921A1 (en) 1979-08-24
GB2013333A (en) 1979-08-08

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BV The patent application has lapsed