The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 1978
Filed:
Mar. 04, 1977
Michael Lawrence Rieger, Beaverton, OR (US);
Tektronix, Inc., Beaverton, OR (US);
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.