GB1478633A - Information input apparatus - Google Patents

Information input apparatus

Info

Publication number
GB1478633A
GB1478633A GB3075574A GB3075574A GB1478633A GB 1478633 A GB1478633 A GB 1478633A GB 3075574 A GB3075574 A GB 3075574A GB 3075574 A GB3075574 A GB 3075574A GB 1478633 A GB1478633 A GB 1478633A
Authority
GB
United Kingdom
Prior art keywords
signal
signals
circuit
producing
key
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.)
Expired
Application number
GB3075574A
Other languages
English (en)
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Publication of GB1478633A publication Critical patent/GB1478633A/en
Expired legal-status Critical Current

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)
  • Electronic Switches (AREA)
  • Calculators And Similar Devices (AREA)
GB3075574A 1973-07-18 1974-07-11 Information input apparatus Expired GB1478633A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48081272A JPS5036031A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-07-18 1973-07-18

Publications (1)

Publication Number Publication Date
GB1478633A true GB1478633A (en) 1977-07-06

Family

ID=13741719

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3075574A Expired GB1478633A (en) 1973-07-18 1974-07-11 Information input apparatus

Country Status (4)

Country Link
JP (1) JPS5036031A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1018464A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2238186B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1478633A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2234378A (en) * 1989-07-25 1991-01-30 Alcatel Business Systems Keyboard for a public terminal

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51145218A (en) * 1975-06-09 1976-12-14 Matsushita Electric Ind Co Ltd Key matrix scanning circuit
FR2604658B1 (fr) * 1986-10-02 1994-05-20 Souloumiac Alain Clavier a balayage matriciel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2234378A (en) * 1989-07-25 1991-01-30 Alcatel Business Systems Keyboard for a public terminal

Also Published As

Publication number Publication date
FR2238186B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-03-24
FR2238186A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-02-14
CA1018464A (en) 1977-10-04
DE2434654B2 (de) 1976-08-12
JPS5036031A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-04-04
DE2434654A1 (de) 1975-02-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee