Point memory graphic terminal

Details Point memory graphic terminal Point memory graphic terminal

G - Physics

09

G

375/4

G09G 1/00 (2006.01) G06T 11/00 (2006.01)

Patent

CA 1222840

ABSTRACT An image memory graphic terminal comprising an image memory constituted by N memory planes, each plane incorporating a matrix system of memory points, a sequencer, a graphic display processor, a video signal generator, a video display receiver, a management microcomputer. According to the invention, the terminal also comprises a system for writing or recording in the image memory image texture signals, said system comprising A) a circuit for processing the access cycle to the image memory, said circuit incorporating : A1) a circuit for the transmission, with a time lag , of the signals for controlling the access cycle to the memory, A2) a shaping circuit (42), B) a circuit for the determination of the word to be written into the memory, incorporating : B1) an operation parametrization circuit, B2) a computing circuit being able to : . calculate two coordinates .alpha.* and .beta.* from addresses x, y and signals .DELTA.X, .DELTA.Y, .DELTA.H, .DELTA.V, offx, offy B3) a pattern memory circuit constituted by memories containing information defining different types of pattern and, for each type, several patterns, B4) a configuration selection circuit.

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