ELECTRON WATCHES WITH SPEECH ANNUNCIATION Russian patent published in 1995 - IPC

FIELD: time measurements. SUBSTANCE: unit has commutation group 1, two diode assemblies 2, 6, watch circuit 7, initial setting circuit 4, level converters 11, 12, single-crystal converter 15, buffer register 17, address registers 22, 24, OR gate 21, inverter 23, permanent memory 27, digital-to-analog converters 27 and 20, sound signal former 26, dynamic loud speaker 29, shift register 9, counter 10, triggers 3, 18, 25, two-input OR-NOT gate circuit 16, three-input AND-NOT gate circuits 8, 14, inverter 13, unit 5 for forming time interval, switches 19, 28 with corresponding set of couplings. EFFECT: improved precision of measurements. 9 dwg