OPTICAL-ELECTRONIC CLOCKS Russian patent published in 1996 - IPC

FIELD: instruments. SUBSTANCE: device has synchronization unit 1, pulse oscillator 2, frequency shaping unit 3, frequency divider 4, two OR gates 5 and 10, minute counter 6, decoder 7, optical-electronic minute indicator 8, light-emitting diodes 9 and 14, hour counter 11, decoders 7 and 12, optical-electronic hour indicator 13, correction unit 15, optical-electronic bridge circuits 16 and 17 for minutes and hours respectively, comparators 18 and 19, AND gate 20, two photodetectors 25 and 26. EFFECT: increased functional capabilities. 6 dwg