Thomson Consumer Electronics Inc.

Kenneth John Haas

Theodore Frederick Simpson

Method and apparatus for using a wide screen television receiver operating at 2f.sub.H as a VGA or SVGA monitor. The VGA or SVGA board in a computer is programmed to generate an RGB video signal representing a picture having fewer than a normal number of horizontal lines than a conventional VGA or SVGA picture having a 4:3 format display ratio, in order to define a picture having a wide format display ratio, for example 16:9. The separate synchronizing signals of the RGB video signal are converted in polarity and phase, as necessary, to a form recognizable by a video processing circuit of the wide screen television receiver.

Emulation of computer monitor in a wide screen television

A VCR or laserdisc player includes circuitry for detecting a code provided by VCR tapes, tape cassettes, or laser videodiscs, which indicates that the material recorded on the videotape or videodisc has been recorded in a compressed fashion to enable proper playback on a 16.times.9 television receiver. In response to detection of this code, the VCR or laserdisc player applies a DC signal to the chrominance output terminal of its S-Video connector. Circuitry in the television receiver detects the DC signal on the chrominance terminal of its S-Video input connector, and controls a wide-screen processor to expand the image by displaying it over the entire width of the 16.times.9 display screen.

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Indianapolis, IN, United States of America

Kenneth John Haas