DATA INPUT DEVICE Russian patent published in 1994 - IPC

Abstract RU 2015535 C1

FIELD: computer technology. SUBSTANCE: device has commutation members 1-12, OR gates 13-20, interrogation and control unit 21, audible signalling unit 22, signal generator 23. Symbol is introduced by simultaneous pressing combination of keys, which determine group of symbols, and key, which determines selected symbol within the group. EFFECT: improved speed of operation. 5 dwg

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RU 2 015 535 C1

Authors

Skakal'Skij Aleksandr Borisovich

Dates

1994-06-30—Published

1990-12-03—Filed