Pattern processing system

Details Pattern processing system Pattern processing system

1984-09-21

1986-06-03

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

340727, 364900, G06K 932

Patent

active

045934070

ABSTRACT:
A pattern storage processing system for use with a page printer has a pattern storage for storing dot matrix patterns representing various characters, etc. Each pattern comprises plural portions called "squares", each of which consists of n.times.n bits. A selected pattern is transferred square by square from the pattern storage to a raster buffer via a rotator which rotates each square according to orientation information. Successive storage locations in the raster buffer which are to receive successive squares are designated by the combination of a base address in a register and offsets in an offset table.

REFERENCES:
patent: 4168488 (1979-09-01), Evans
patent: 4271476 (1981-06-01), Lotspiech
patent: 4300206 (1981-11-01), Belleson et al.
patent: 4312045 (1982-01-01), Jean et al.
patent: 4545069 (1985-10-01), Kermisch
Hill et al., Digital Systems: Hardware Organization and Design, 2nd edition, John Wiley & Sons, New York, 1978, pp. 192-200.

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