Boots – shoes – and leggings
Patent
1983-09-16
1986-09-02
Krass, Errol A.
Boots, shoes, and leggings
340703, 364521, G09B 908, G09B 102
Patent
active
046099930
ABSTRACT:
In a graphic display system a plurality of sets of first, second and third geometrical digital signals and a pictorial signal are stored in a memory and read therefrom at the raster speed of a display unit into plural latches with which plural interpolators are respectively associated. The first and second signals represent the gradients of the planes of a solid object with respect to the two axes of a coordinate system respectively, and the third signal represents the depth of a point lying on each edge of the object. Each interpolator converts the first gradient signal from the associated latch to a corresponding voltage and includes a proportioning circuit that scales the voltage as a function of the second gradient signal and as a function of a fourth signal representing the location of a scan point. Proportioned signals from the interpolators are summed respectively with the associated third signals to indicate the instantaneous values of the depths of the planes as a function of the raster scan. The summed signals are compared with each other to detect the one having a smallest magnitude to enable the pictorial signal of the desired plane.
REFERENCES:
patent: 3602702 (1971-08-01), Warnock
patent: 3621214 (1971-11-01), Romney et al.
patent: 3996673 (1976-12-01), Vorst et al.
patent: 4017985 (1977-04-01), Heartz
patent: 4475104 (1984-10-01), Shen
Herndon H. R.
Krass Errol A.
Victor Company of Japan , Limited
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