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US 5,218,389 AGranted
Portable interactive multimedia presentation unit
OwnerThomas A. Harlon, Joseph F. Longinventors
Life of this patent
Estimating the term…
Abstract
A portable interactive multimedia presentation unit comprising a portable computer and a portable carrying case equipped to hold a projector unit with mounting accessories and a conductive shroud to enclose a light path from the computer screen to the inlet of the projector unit.
Claims6
A portable interactive multimedia presentation unit comprising:
- a) a computer;
- b) a projector means to project an image from an essentially vertical backlighted screen of said computer to a vertical surface, said projector means comprising:
- 1) a lower section with optics to project said image vertically;
- 2) an upper section with a square cross section machined to fit closely into a top part of said lower section with optical means aligned with optics in said lower section with said optical means allowing said upper section to be fitted onto said lower section to project said vertical image received from said lower section at right angles thereby allowing said image to be projected on any of four walls of a room wherein said computer with said multimedia presentation unit is being used;
- d) an adjustable conductive shroud means to enclose a light path from said backlighted screen to an entrance to said projector means.
2 more elements
A portable interactive multimedia presentation unit comprising:
- a) computer with a detachable keyboard and backlighted
- b) a manually adjustable projector means to project an image in any one of four directions, 90 degrees with said backlighted screen being held in a fixed position;
- c) a shroud enclosing a light path from said backlighted screen to an inlet to said projector means;
- d) a mounting means to adjustable support said projector means.
1 more element
Dependencies are inferred from the claim text.