Patent ID: 7812888
Filing Date: 2010-10-12
Classification: H04N

Abstract:
1. A video signal determination device, comprising: a synchronization separator for separating synchronizing signals from a video signal that contains said synchronizing signals; a detector for detecting synchronization type and vertical synchronizing signal width that are contained in the synchronizing signals that have been separated by said synchronization separator; and a determination unit for determining a type of said video signal based on detection results of said detector, wherein said detector further detects horizontal synchronization frequency, vertical synchronization frequency, synchronization polarity, scan type, and image line number that are contained in said synchronizing signals; said synchronization separator separates said synchronizing signals from each RGB signal and from each YCrCb signal that are used as said video signal; said synchronization polarity is indicated by “Nega” and “Posi”; said synchronization type is indicated by “Separate Sync,” “Composite Sync,” “Sync-on-G,” and “Tri-State-Sync”; and said scan type is indicated by “Interlace” and “Non-Interlace”.