Interpolating digital data processing apparatus for correlation-

Details Interpolating digital data processing apparatus for correlation- Interpolating digital data processing apparatus for correlation-

1978-08-22

1981-03-03

Atkinson, Charles E.

Boots, shoes, and leggings

364510, 364728, 235 92FL, G06G 730, G06F 702

Patent

active

042544700

ABSTRACT:
Interpolating apparatus is provided for more accurately determining the peak position of a function, particularly a cross-correlation function derived from two related flow signals fed to an overloading counter correlation flowmeter, whereby the peak position is indicated by a set of signals corresponding to quantized values of a parameter and the apparatus interpolates the peak position from selected signals of the set. The preferred method of operation comprises computing for each of the signals an average of the quantized values of the parameter corresponding to that signal, and summing a predetermined number of these average values to obtain an indication of an interpolated value of the peak position. Various output circuits are provided for flowmeter applications to produce an output which is proportional to flow rate.

REFERENCES:
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patent: 3412240 (1968-11-01), Hunt et al.
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patent: 3840174 (1974-10-01), Craft
patent: 3846625 (1974-11-01), Sasayama
patent: 3862405 (1975-01-01), Beck
patent: 4019038 (1977-04-01), Critten et al.
patent: 4025775 (1977-05-01), Beauvais et al.
patent: 4097801 (1978-06-01), Freeman et al.

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