Apparatus for producing smooth and continuous graphic displays f

Details Apparatus for producing smooth and continuous graphic displays f Apparatus for producing smooth and continuous graphic displays f

1975-10-31

1977-07-26

Hartary, Joseph W.

Registers

Transfer mechanism

Traveling pawl

235152, 340324AD, 346110R, G06G 730

Patent

active

040386686

ABSTRACT:
A display apparatus includes a computational circuit that is connected to the output of a memory to introduce between a stored digital representation of successive sampled data points, by an interpolation method, additional virtual or interpolated data points. The interpolated data points are computed in accordance with the magnitudes of the separations or differences in value between the sampled data points. In a CRT display or hard copy recorder, this allows a higher cathode ray sweep speed, and hence, a higher density of raster lines, and consequently, an improvement in resolution, smoothness and continuity of the display, for a given size memory.

REFERENCES:
patent: 3459926 (1969-08-01), Heilweil
patent: 3605109 (1971-09-01), Tyler
patent: 3686662 (1972-08-01), Blixt

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