| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: apparatus comprises write address counters, random-access memory, a read address counter, a time interval meter, a gating unit, a distributor, a tracking circuit, an inhibit circuit, a repetition period forming unit, a threshold forming unit, two decoders, a flip-flop and an AND element, connected to each other in a certain manner.EFFECT: high noise-immunity.2 dwg |
