Timing interpolator

Details Timing interpolator Timing interpolator

1992-01-17

1993-04-27

Sikes, William L.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Measuring or testing

377 16, 331 1A, 328155, 375106, 375111, 307606, 307269, H03K 5135

Patent

active

052068897

ABSTRACT:
A timing interpolator providing high resolution timing measurement of when an event occurs. The interpolator of the present invention includes three embodiments. The interpolator of the first embodiment includes a Voltage Controlled Oscillator (VCO) phase-locked loop, an N-bit counter, and an N-bit latch. The interpolator of the second embodiment includes a delay line phase-lock loop and an X-bit latch. The delay line phase-lock loop includes an X-bit delay cell chain and a phase detector. The interpolator of the third embodiment of the present invention represents a combination of the interpolators of the first and second embodiments. The interpolator of the third embodiment includes a VCO phase-locked loop, a delay line phase-lock loop and X-bit latches.

REFERENCES:
patent: 4626796 (1986-12-01), Elder
patent: 4719365 (1988-01-01), Misono
patent: 4876518 (1989-10-01), Perkins
patent: 5101117 (1992-03-01), Johnson et al.
patent: 5111151 (1992-05-01), Ii

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