Point location and graphics display apparatus

Details Point location and graphics display apparatus Point location and graphics display apparatus

1980-09-23

1985-03-19

Krass, Errol A.

Boots, shoes, and leggings

33 1M, 178 18, 340710, 340727, 364520, 364561, G06K 1100

Patent

active

045063362

ABSTRACT:
A point location and graphics display system wherein a digitizer, (10) having an inner housing (14) rotatably retained in an outer housing (12), includes a rolled, flexible steel tape (34) extendable from the inner housing (14) about a roller (40) and having a stylus (76) on its outer extremity. Roller sprockets (119) engage sprocket holes (118) in the tape (34) and pass through a straightener (166) and a cleaner (168). Angle encoder (18) and linear encoder (46), respectively driven by rotation of the tape (34) in the inner housing (14) and by linear movement of the tape (34), provide signals to a computer (54) which digitizes and supplies those signals to an upright visual display (58) or a desktop display (308). A desk (356) is sometimes provided, with a menu (376), an alphanumeric keyboard (262), a digital display (366), a function keyboard (328), a recorder (302) and its controls (304), view-rotating dials (396-400) and color selection dials (404-408). The stylus (76) may be provided with a cursor guide (434) having a clamp (440) for a writing instrument (78).

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