Interpolating time-measurement apparatus

摘要: A time-measurment circuit (10) employs time-expansion circuits (13 and 14) to expand the initial final portions of duration an event so as measure more precisely those segments time that typically are not integral numbers clock periods in length. Each a single capacitor (34), which it charges at rapid rate during or segment be measured then discharges much lower rate. The occur required for charging discharging counted, with greatly enhanced resolution. An emitter-coupled-logic integrated (54) performs (34) by drawing current through its V CC1 l terminal ( 62).