Constant velocity vector generator employing absolute value ampl

Details Constant velocity vector generator employing absolute value ampl Constant velocity vector generator employing absolute value ampl

1977-03-04

1978-10-17

Ruggiero, Joseph F.

Boots, shoes, and leggings

307229, 328158, G06G 712, G06G 714

Patent

active

041212991

ABSTRACT:
A Constant Velocity Vector Generator is disclosed for connecting X, Y coordinate points of a rectangular coordinate display system. A pair of absolute value amplifier circuits, a square-root-of-the-sum-of-the-squares circuit, a pair of dividers, and a pair of integrators are employed to convert simultaneous .DELTA.X and .DELTA.Y step voltages 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: 2924709 (1960-02-01), Morrill
patent: 3024995 (1962-03-01), Patterson
patent: 3105145 (1963-09-01), Meyers et al.
patent: 3299287 (1967-01-01), Staeudle
patent: 3546596 (1970-12-01), Beaudette

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