Apparatus for processing the frequency of a signal

Details Apparatus for processing the frequency of a signal Apparatus for processing the frequency of a signal

1991-10-28

1995-03-28

Turner, Samuel A.

Optics: measuring and testing

By particle light scattering

With photocell detection

356358, G01B 902

Patent

active

054022290

ABSTRACT:
The invention concerns a signal frequency processing device for measuring the frequency of an input signal with the aid of very simple counters. The input signal to be measured is divided into two, four or even more partial signals, each partial signal having a frequency which is half, a fourth or an even higher fraction of the input signal's frequency. In this way rather slow, cheap and small counting devices can be used for counting fractions of the input signal which are later accumulated again to end up with a frequency which is identical with the frequency of the input signal. The input signal is thus retrieved.

REFERENCES:
patent: 4859934 (1989-08-01), Gale et al.
patent: 5066128 (1991-11-01), Lu
patent: 5070260 (1991-12-01), Wong

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