How is an interlaced scanning pattern generated in a fast-scan (NTSC) television system?
By scanning two fields simultaneously
By scanning each field from bottom-to-top
By scanning lines from left-to-right in one field and right-to-left in the next
By scanning odd-numbered lines in one field and even-numbered lines in the next✓Respuesta correcta
Explicación
Interlace is produced by scanning the odd-numbered lines in the first field and the even-numbered lines in the second, so the two fields mesh into one 525-line frame. This halves the visible flicker without increasing the video bandwidth; the fields are sent one after the other, always top to bottom and left to right.