What is the advantage of interlaced video? What are some of its problems?
(b) NTSC video has 525 lines per frame and $63.5 \mu$ sec per line, with 20 lines per field of vertical retrace and $10 \mu$ sec horizontal retrace.
1) Where does the $63.5 \mu \mathrm{sec}$ come from?
2) Which takes more time, horizontal retrace or vertical retrace? How much more time?

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The Answer of What is the advantage of interlaced video? What are some of its problems?
(b) NTSC video has 525 lines per frame and $63.5 \mu$ sec per line, with 20 lines per field of vertical retrace and $10 \mu$ sec horizontal retrace.
1) Where does the $63.5 \mu \mathrm{sec}$ come from?
2) Which takes more time, horizontal retrace or vertical retrace? How much more time?

What Is the Advantage of Interlaced Video? What Are Some 63.5μ63.5 \mu63.5μ

What Is the Advantage of Interlaced Video? What Are Some $63.5 \mu$