Boots – shoes – and leggings
Patent
1977-08-04
1979-03-27
Ruggiero, Joseph F.
Boots, shoes, and leggings
340706, 340741, G06F 314
Patent
active
041469259
ABSTRACT:
A graphics generator responds to signals defining a pattern to be displayed. The pattern comprises a plurality of pattern segments each of which may be a vector, conic or alpha numeric character. The graphics generator produces digital signals which are capable of driving a display through an A/D converter to produce a visual representation of the desired pattern segment. The pattern segment is broken up into a plurality of strokes of constant length regardless of orientation. Chaining the strokes on the display thus produces the desired pattern. An input signal defining a vector defines both the length and the orientation of the vector and these quantities are stored in length and orientation registers, respectively. The orientation signal is employed as an address into a sine/cos memory to derive stroke components in an orthogonal coordinate system which are then added to a beginning position of the stroke to produce the stroke end point. At the same time, a counter containing a quantity representative of the length of the desired vector is decremented. Repeating this process produces a series of digital signals representing strokes of constant length which can drive a display to produce the desired vector. Conics are produced in much the same manner except that the orientation register is incremented by a predetermined quantity for each cycle (or once in a determined number of cycles) thereby producing strokes whose orientation changes at a constant rate. Characters can be written at any desired orientation, by accessing a character definition memory storing signals representative of a plurality of pattern segments defining the particular character.
REFERENCES:
patent: 3735389 (1973-05-01), Tarczy-Hornoch
patent: 3775760 (1973-11-01), Strathman
patent: 3789200 (1974-01-01), Childress et al.
patent: 3809868 (1974-05-01), Villalobos et al.
patent: 3946365 (1976-03-01), Bantner
patent: 4023027 (1977-05-01), Strathman et al.
Green Paul F.
Mead Barry B.
Ruggiero Joseph F.
Smiths Industries, Inc.
LandOfFree
Graphics generator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Graphics generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Graphics generator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1825290