Method of interpolating output from sensor

Details Method of interpolating output from sensor Method of interpolating output from sensor

1997-02-05

1998-07-21

Wysocki, Jonathan

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

32420712, H02P 700

Patent

active

057839255

ABSTRACT:
The period Tn needed to count a lowermost bit of a signal of which an absolute value of difference between a last real data .theta.(k) and a present real data .theta.(k+1) is assumed to be quantized in a data block period To is obtained. One digital quantity is successively accumulated on the present real data .theta.(k+1) every period Tn to obtain interpolation data C, D . . . . At the point t1 a final interpolation data G is adapted to be added or subtracted, the total of added or subtracted digital quantity exceeds the absolute value of difference. Accordingly, a final interpolation data G is held until a next real data .theta.(k+2) is output.

REFERENCES:
patent: 4774464 (1988-09-01), Kubota et al.
patent: 4897647 (1990-01-01), Sakamoto et al.
patent: 5142226 (1992-08-01), Sakamoto et al.
patent: 5208535 (1993-05-01), Nakayama et al.
patent: 5300879 (1994-04-01), Masuda et al.
patent: 5498961 (1996-03-01), Kuhn et al.

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