| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: frequency permit inspection device contains the common bus, the input bus, two resistors, two capacitors, two buffer cascades, two comparators, two univibrators, two sampling-storage devices, the divider, the adder, the single pulse shaper and the output shaper, the power supply bus.EFFECT: implementation of input signal frequency permit inspection.2 cl, 3 dwg |
