What are the sync related problems in video?
Sync related problems might be divided into two kinds: Problems with the sync information carried with the video signal. Problems of sync signal compatibility. As sync information is vital for video image stability, deterioration or loss of the sync signals effects image stability. Both Horizontal and Vertical sync signals are crucial for image stability and proper image centering on the screen. When the sync signals are effected, during transmission or recording, they may be recovered using a sync restoring device or a TBC (Time Base Corrector). The problem of sync compatibility exists because there are so many standards for transferring sync information with the video signal: sync signals may come in analog form, as a composite sync signal, and they may come in digital form – either composite or separate – Horizontal or Vertical, positive direction or negative. The sync signals may also be part of the luminance signals (as in Composite Video or Y/C) or ride on a video component signa
