Picosecond resolution sampling time interval unit

Details Picosecond resolution sampling time interval unit Picosecond resolution sampling time interval unit

1993-09-20

1996-10-15

Roskoski, Bernard

Horology: time measuring systems or devices

Time interval

Electrical or electromechanical

368119, 368120, G04F 800

Patent

active

055661394

ABSTRACT:
A time interval unit which operates in accordance with electronic sampling techniques and employing a pair of identical sampling interpolators which are respectively triggered at the start and stop of the time interval to be measured. Each time interval unit includes a GHz frequency sinusoidal clock signal generator and a time counter in the form of a pulse counter and a pair of sampling type interpolators which are respectively triggered on in response to a start and a stop signal. When triggered, each interpolator samples the instantaneous amplitude of the in-phase(x) and quadrature(y) components of the sinusoidal clock signal. From the samples of the x and y components and the pulse counter's result, the elapsed time between two events is computed to a psec accuracy.

REFERENCES:
patent: 3444462 (1969-05-01), Tarcy-Hornoch
patent: 4362394 (1982-12-01), Menlove
patent: 4637733 (1987-01-01), Charles et al.
patent: 4678345 (1987-07-01), Agoston
patent: 5027298 (1991-06-01), Khazam

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