Mid - Multi Image Driver - Sony TVP-08 Training Manual

The world of NTSC has been a simple world. The 480i video cameras
give their signals to 480i video recorders, 480i production switchers, 480i
broadcasting, 480i videocassettes, 480i videodiscs and ultimately 480i
home television receivers. This world is comfortable and compatible, but
it's already rapidly changing.
A blossoming range of image standards
Unlike entertainment-oriented television, computers have long used pro-
gressive scanning to maximize the legibility of on-screen text. For ex-
ample, the popular VGA computer standard uses progressive scanning
640 h x 480 V pixels. In video terms, that's 480P.
Digital Television (DTV) broadcasting embraces both interlace scanning
and progressive scanning. A convergence technology is needed to link
the two previously separate worlds of entertainment and information.
Sony's solution
Sony's new Multi-Image Driver (MID) circuitry contains a special "Twin-
View" function that can display either a High Definition or a Standard Defi-
nition video signal together with any VGA source. This is a proprietary
integrated circuit based on company expertise in broadcast-quality Digital
Multi Effects systems. Some (but not all) Sony televisions with MID will
enable viewers to combine two different signal formats on the same screen.
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MID - Multi Image Driver

MID works by converting both signals to VGA (480P) display. Supported
signal combinations include:
· NTSC + NTSC
· NTSC + HD
· VGA + NTSC
· VGA + HD
MID circuitry can mix
High Definition video
with computer VGA
images or HD and NTSC