NL7406034A - Toetsenbord. - Google Patents

Toetsenbord.

Info

Publication number
NL7406034A
NL7406034A NL7406034A NL7406034A NL7406034A NL 7406034 A NL7406034 A NL 7406034A NL 7406034 A NL7406034 A NL 7406034A NL 7406034 A NL7406034 A NL 7406034A NL 7406034 A NL7406034 A NL 7406034A
Authority
NL
Netherlands
Prior art keywords
keyboard
Prior art date
Application number
NL7406034A
Other languages
English (en)
Original Assignee
Philips 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 Philips Nv filed Critical Philips Nv
Priority to NL7406034A priority Critical patent/NL7406034A/nl
Priority to DE19752517903 priority patent/DE2517903A1/de
Priority to US05/573,477 priority patent/US4074261A/en
Priority to CA226,163A priority patent/CA1036945A/en
Priority to GB18433/75A priority patent/GB1508502A/en
Priority to IT22965/75A priority patent/IT1037818B/it
Priority to FR7514136A priority patent/FR2270638A1/fr
Priority to JP50053302A priority patent/JPS50151424A/ja
Priority to SE7505107A priority patent/SE398400B/xx
Publication of NL7406034A publication Critical patent/NL7406034A/nl

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/20—Dynamic coding, i.e. by key scanning

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
NL7406034A 1974-05-06 1974-05-06 Toetsenbord. NL7406034A (nl)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL7406034A NL7406034A (nl) 1974-05-06 1974-05-06 Toetsenbord.
DE19752517903 DE2517903A1 (de) 1974-05-06 1975-04-23 Tastenfeld
US05/573,477 US4074261A (en) 1974-05-06 1975-05-01 Keyboard contact and signal line arrangement
CA226,163A CA1036945A (en) 1974-05-06 1975-05-02 Keyboard with multiple contact points for each key
GB18433/75A GB1508502A (en) 1974-05-06 1975-05-02 Keyboard
IT22965/75A IT1037818B (it) 1974-05-06 1975-05-02 Tastiera
FR7514136A FR2270638A1 (nl) 1974-05-06 1975-05-06
JP50053302A JPS50151424A (nl) 1974-05-06 1975-05-06
SE7505107A SE398400B (sv) 1974-05-06 1975-11-07 Tangentbord

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7406034A NL7406034A (nl) 1974-05-06 1974-05-06 Toetsenbord.

Publications (1)

Publication Number Publication Date
NL7406034A true NL7406034A (nl) 1975-11-10

Family

ID=19821304

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7406034A NL7406034A (nl) 1974-05-06 1974-05-06 Toetsenbord.

Country Status (9)

Country Link
US (1) US4074261A (nl)
JP (1) JPS50151424A (nl)
CA (1) CA1036945A (nl)
DE (1) DE2517903A1 (nl)
FR (1) FR2270638A1 (nl)
GB (1) GB1508502A (nl)
IT (1) IT1037818B (nl)
NL (1) NL7406034A (nl)
SE (1) SE398400B (nl)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211820A (en) * 1975-07-18 1977-01-29 Nippon Signal Co Ltd:The Tosh-button switch discriminator circuit
JPS52149029A (en) * 1976-06-04 1977-12-10 Seiko Epson Corp Keyboard
US4326194A (en) * 1979-04-16 1982-04-20 The Singer Company Dual encoded switching matrix
US4532497A (en) * 1983-01-14 1985-07-30 Polytel Corp. Matrix keyboard with plurality of sequences of cascaded electrical elements
DE9216956U1 (nl) * 1992-12-12 1993-02-11 Skultety, Ivan, 5000 Koeln, De
US5584588A (en) * 1995-04-21 1996-12-17 Harbaugh; Gary B. Computer keyboard layout
DE10155421B4 (de) 2001-11-12 2007-11-29 Siemens Ag Tastaturfeld

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886335A (en) * 1973-01-26 1975-05-27 Ind Electronics Engineers Inc Collated cable matrix switch
JPS5319374B2 (nl) * 1973-04-03 1978-06-20

Also Published As

Publication number Publication date
DE2517903A1 (de) 1975-11-27
SE7505107L (sv) 1975-11-07
FR2270638A1 (nl) 1975-12-05
CA1036945A (en) 1978-08-22
IT1037818B (it) 1979-11-20
JPS50151424A (nl) 1975-12-05
SE398400B (sv) 1977-12-19
US4074261A (en) 1978-02-14
GB1508502A (en) 1978-04-26

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Legal Events

Date Code Title Description
BV The patent application has lapsed