G - Physics – 09 – G
Patent
G - Physics
09
G
375/5, 327/1.4,
G09G 1/00 (2006.01) G06T 17/40 (2006.01) H04N 1/387 (2006.01)
Patent
CA 1226382
ABSTRACT Apparatus and methods for constructing complex patterns and representations are described having particular application in the construction of a printing plate for printing security documents and/or banknotes. A large computer memory is employed to store in digital form signals which will reproduce in a high definition scanning display pictorial and linear patterns and the like. The display is typically a laser plotter Devices for converting pictorial information into digital signals for processing and storage comprise digitising tablets, image scanners and micro-densitometers. In the method of the invention a design is assembled part by part on the scanning display and the separate parts are stored in turn in the memory for subsequent recall and combination in the scanner to reproduce the overall design.
466752
Eccleston Harry N.
Scott Raymond W.
Governor And Company Of The Bank Of England (the)
Kirby Eades Gale Baker
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