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FS450, FS451
PRELIMINARY PRODUCT DESCRIPTION
JUNE, 2000, VERSION 1.2
10
COPYRIGHT
©
© 1999, 2000 FOCUS ENHANCEMENTS, INC.
PRELIMINARY INFORM ATION
3.3 Multiple Digital Video Sources Blended
⇒
⇒ TV
Houston
Video
Decoder
Alpha
Blend
VGA
Controller
Color Space
Converter
Horz and Vertical
Down Scaler
Flicker
Filter
Frame
Memory
Output
Control
Encoder
NCO
and
PLL
RGB
CCIR 656
CCIR
656
CCIR 656
Video Syncs
Composite
and Y/C
CCIR 656
CCIR
656
27 MHz Encoder Clk
VGA Syncs
MPEG2
Decoder
CCIR 656
Sync Control
27 MHz Decoder Clk
VGA Clk Out
YUV to
RGB
RGB
VGA Clk In
DA
Cs
Crystal
Osc
Figure 7: Multiple digital video sources blended
⇒
⇒ TV