Circuit arrangement for correcting digital signals

Details Circuit arrangement for correcting digital signals Circuit arrangement for correcting digital signals

1978-03-29

1980-04-29

Krass, Errol A.

Boots, shoes, and leggings

250209, 358163, 364525, G01J 342, H04N 514

Patent

active

042009340

ABSTRACT:
The analog output signals of a photoelectric image converter or transducer are passed through an analog-to-digital converter and then corrected to take various irregularities of the optical sensor elements of the transducer into account. A reference signal and a dark signal are subtracted from the individual image point signals. The difference is then multiplied by a factor representing the slope of the characteristic response curve of the respective optical sensor element. The so corrected signal may be used for further processing or it may be subjected to a further correction operation.

REFERENCES:
patent: 3653014 (1972-03-01), List et al.
patent: 3852714 (1974-12-01), Carson
patent: 3919473 (1975-11-01), Cotter
patent: 3972626 (1976-08-01), Laskowsi
patent: 4084248 (1978-04-01), Scott
patent: 4086652 (1978-04-01), Mantz

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