Deflection signal pre-start circuit for a constant speed, stroke

Details Deflection signal pre-start circuit for a constant speed, stroke Deflection signal pre-start circuit for a constant speed, stroke

1976-01-07

1977-01-04

Trafton, David L.

Communications: electrical

Systems

Portable self-contained

315367, 315371, 315384, G06K 1520

Patent

active

040018067

ABSTRACT:
In a constant speed stroke-write vector display system having a video gate signal for initiating the video display of a stroke vector at a time coincident with the start of the horizontal and vertical deflection signals, the deflection signals starting value for each displayed vector is offset by an amount which is proportional to, but of opposite polarity with, the rate magnitude of the respective deflection signal, and the video gate signal is delayed for a time interval following the start of the deflection signals, the amount of time delay being substantially equal to the product of either deflection signal offset amount and the reciprocal of the respective deflection signal rate magnitude.

REFERENCES:
patent: 2678964 (1954-05-01), Loughlin
patent: 3396306 (1968-08-01), Mallebrein
patent: 3582705 (1971-06-01), Waller et al.
patent: 3746912 (1973-07-01), Redecker et al.
patent: 3787834 (1974-01-01), Elliott
patent: 3809868 (1974-05-01), Villalobos et al.
patent: 3889244 (1975-06-01), Sinobad
patent: 3962604 (1976-06-01), Guenard et al.

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