Cursor pointing device based on thin-film interference filters

Details Cursor pointing device based on thin-film interference filters Cursor pointing device based on thin-film interference filters

1996-05-15

1998-08-11

Nguyen, Chanh

Computer graphics processing and selective visual display system

Display peripheral interface input device

345158, G09G 500

Patent

active

057933537

ABSTRACT:
A hand-held pointing device for positioning a cursor on a display having a plurality of illuminating devices at a periphery thereof, includes a housing, an interference filter coupled to the housing, a device for detecting light having been emitted from the plurality of illuminating devices and filtered by the interference filter, a device, coupled to the detecting device, for distinguishing a region of the periphery of the display from which the light having been detected originates, and a device for translating the detected light into values for positioning the cursor on the display.

REFERENCES:
patent: 4558313 (1985-12-01), Garwin et al.
patent: 4565999 (1986-01-01), King et al.
patent: 4682159 (1987-07-01), Davison
patent: 4823170 (1989-04-01), Hansen
patent: 4851664 (1989-07-01), Rieger
patent: 5045843 (1991-09-01), Hansen
patent: 5444193 (1995-08-01), Satoh et al.

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