IT1221796B - Tastiere del tipo a tocco per computer - Google Patents

Tastiere del tipo a tocco per computer

Info

Publication number
IT1221796B
IT1221796B IT47556/84A IT4755684A IT1221796B IT 1221796 B IT1221796 B IT 1221796B IT 47556/84 A IT47556/84 A IT 47556/84A IT 4755684 A IT4755684 A IT 4755684A IT 1221796 B IT1221796 B IT 1221796B
Authority
IT
Italy
Prior art keywords
key functions
multiple key
touch keyboard
level
ridges
Prior art date
Application number
IT47556/84A
Other languages
English (en)
Other versions
IT8447556A0 (it
Inventor
James Martial Lapeyre
Original Assignee
Laitram Corp
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 US06459998 external-priority patent/US4547860B1/en
Priority claimed from US06/488,692 external-priority patent/US4549279A/en
Application filed by Laitram Corp filed Critical Laitram Corp
Publication of IT8447556A0 publication Critical patent/IT8447556A0/it
Application granted granted Critical
Publication of IT1221796B publication Critical patent/IT1221796B/it

Links

Landscapes

  • Switches With Compound Operations (AREA)
  • Input From Keyboards Or The Like (AREA)
IT47556/84A 1983-01-21 1984-01-18 Tastiere del tipo a tocco per computer IT1221796B (it)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06459998 US4547860B1 (en) 1983-01-21 1983-01-21 Computer keyboards with few keys designating hundreds of functions
US06/488,692 US4549279A (en) 1983-01-21 1983-04-26 Single hand, single finger stroke alphameric data processing keyboard system
US49361383A 1983-05-11 1983-05-11
US58297583A 1983-09-02 1983-09-02

Publications (2)

Publication Number Publication Date
IT8447556A0 IT8447556A0 (it) 1984-01-18
IT1221796B true IT1221796B (it) 1990-07-12

Family

ID=27504063

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47556/84A IT1221796B (it) 1983-01-21 1984-01-18 Tastiere del tipo a tocco per computer

Country Status (1)

Country Link
IT (1) IT1221796B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006008755A1 (en) * 2004-07-20 2006-01-26 Chungath Joseph Ittoop A device for manually inputting information and instructions to an equipment incorporating digital electronic circuits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006008755A1 (en) * 2004-07-20 2006-01-26 Chungath Joseph Ittoop A device for manually inputting information and instructions to an equipment incorporating digital electronic circuits

Also Published As

Publication number Publication date
IT8447556A0 (it) 1984-01-18

Similar Documents

Publication Publication Date Title
BR8304754A (pt) Conjunto de chave de toque capacitiva, aperfeicoado
DE3887496D1 (de) Eingabeauswahlverfahren mit einer Tastatur.
GB2009047B (en) Touch checking key tops for keyboard
DE3063307D1 (en) Microprocessor-controlled data-input keyboard with variable-impedance keys
GB2133745B (en) Increasing keyboard functions by depressing a plurality of keys simultaneously
GB2134042B (en) Keyboard with extra functions obtained by pressing key combinations
DE68921367D1 (de) Membrantastatur mit einer Blockierungsvorrichtung.
EP0632764A4 (en) KEYBOARD WITH CROSS-OPERATED NON-ALPHANUMERIC KEYS.
DE3880300D1 (de) Tastatur mit geistertasten-feststellung.
GB2049292B (en) Push button or keyboard with depressable keys
EP0046575A3 (en) Parallel guide for a key switch with multiple buttons
IT8020332A0 (it) Interruttore a tasto.
FR2656253B1 (fr) Clavier pour machines a ecrire, imprimantes et machines analogues.
DE3566697D1 (en) Coded lock device, especially with a keyboard
IT1221796B (it) Tastiere del tipo a tocco per computer
GB1550959A (en) Capacitive key switch assemblage
IT8821681A0 (it) Struttura di valvola con serratura azionabile a chiave.
IT7824774A0 (it) Tastiera di comando alfanumerica a tasti premibili per macchina elettrica o elettronica.
AU2943089A (en) Computer keyboard software key guide holder
IT8046803A0 (it) Comprendenti detta tastiera tastiera di comando a pulsanti ed interruttori meccanici e macchine
IT8684109A0 (it) Macchina duplicatrice di chiavi, particolarmente di chiavi a mappa.
JPS5787383A (en) Guide key of roman type writer
FR2539247B1 (fr) Clavier a marquage de touches adaptable
IT8019737A0 (it) Interruttore a tasto.
FR2652945B3 (fr) Touche a effleurement.

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990129