Computer graphics processing and selective visual display system – Display driving control circuitry – Waveform generator coupled to display elements
Patent
1997-03-17
1999-04-06
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Display driving control circuitry
Waveform generator coupled to display elements
G09G 500
Patent
active
058925058
ABSTRACT:
An apparatus for displaying on a display screen a first image sequence exclusively to a first viewer and a second image sequence exclusively to a second viewer, the first image sequence including a respective plurality of image frames and the second image sequence including a respective plurality of image frames. A controller alternately displays in an interlaced fashion each of the image frames of the first image sequence and each of the image frames of the second image sequence on the display screen. The controller also generates a second viewer image block signal when each of the image frames of the first image sequence are displayed and a first viewer image block signal when each of the image frames of the second image sequence are displayed. A first viewer image blocking element responsive to the first viewer image block signal generated by the controller is provided for blocking the first viewer's view of the display screen when the first viewer image block signal is received and a second viewer image blocking element responsive to the second viewer image block signal from the controller is provided for blocking the second viewer's view of the display screen when the second viewer image block signal is received.
REFERENCES:
patent: 4879603 (1989-11-01), Berman
patent: 5368309 (1994-11-01), Monroe et al.
patent: 5478239 (1995-12-01), Fuerst et al.
patent: 5500683 (1996-03-01), Yatomi et al.
patent: 5657034 (1997-08-01), Yamazaki
Hjerpe Richard A.
Laneau Ronald
Tropper Technologies, Inc.
Tropper, Esq. Matthew B.
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