INDICATION DEVICE Russian patent published in 1997 - IPC

FIELD: measurement technology, radio electronics. SUBSTANCE: indication device includes source 1 of electric energy, indicating assembly of m indicators 2, controlled change-over switch 3 and key 4 forming unit 5, terminals 6 and 7 for connection of source of electric energy and controlling inputs 8 and 9. Input 8 is used to control lines and input 9-to control columns, n units 5 are connected in series and to common point of device. Depending on addressing method information should be fed to inputs 8 and 9 of each unit 5 in parallel code. EFFECT: capability to form any letter-digital symbols, to compose texts and mimic panels which is matter of interest while designing information and mimic boards. 2 dwg