Superparamagnetic image character recognition compositions and p

Details Superparamagnetic image character recognition compositions and p Superparamagnetic image character recognition compositions and p

1996-02-14

1997-09-16

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Magnetic imaging

430122, 427467, G03G 1306

Patent

active

056679246

ABSTRACT:
An image character recognition process comprising: forming an image in a predetermined size and predetermined shape on a receiver member with a marking composition containing a superparamagnetic component; detecting the predetermined size and predetermined shape of the formed image by placing the resulting image bearing receiver member in a magnetic sensing field comprising at least one magnetic sensor and forming a magnetic size and magnetic shape profile map of the detected image; and recognizing the detected image by comparing the magnetic size and magnetic shape profile map of the formed image with reference magnetic profile image maps.

REFERENCES:
patent: 4854550 (1989-08-01), Gruber et al.
patent: 5124217 (1992-06-01), Gruber et al.
patent: 5140368 (1992-08-01), Szlucha
patent: 5219554 (1993-06-01), Groman et al.
patent: 5567564 (1996-10-01), Ziolo

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