Constant velocity vector generator

Details Constant velocity vector generator Constant velocity vector generator

1975-10-24

1977-06-28

Ruggiero, Joseph F.

Registers

Transfer mechanism

Traveling pawl

235198, 235186, 340324A, G06G 722

Patent

active

040327680

ABSTRACT:
A Constant Velocity Vector Generator is disclosed for connecting X, Y coordinate points of a rectangular coordinate display system. Simultaneous .DELTA.X and .DELTA.Y step voltages are converted to ramp voltage pairs which are applied to appropriate X and Y deflection circuits of a graphic display device to produce straight-line traces whose velocities are constant for all vectors regardless of magnitude (line length) or direction (angle). Each vector may be drawn to any length or direction, immediately after which new data may be applied to the vector generator to initiate a new vector whose origin is the end point of the preceding vector. Such a system is particularly applicable to computer-drawn displays. The vector generating circuits are suitable for realization in a monolithic integrated circuit.

REFERENCES:
patent: 3482086 (1969-12-01), Caswell
patent: 3688028 (1972-08-01), Altemus
patent: 3725897 (1973-04-01), Bleiweiss
patent: 3772563 (1973-11-01), Hasenbalg
patent: 3809868 (1974-05-01), Villalobos et al.

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