| 摘要 |
A method, an apparatus, and a carrier medium carrying code to implement the method. The method includes accepting blindly video samples of at least one video signal representing lines of video. At least one of the video signals includes horizontal synchronization pulses at a sync tip level. The video samples are formed by blindly sampling the least one video signal in a manner unsynchronized with the video signal or any synchronization signal related to the video signal. The method further includes storing the accepted video samples in a memory that store at least one video line of samples, and analyzing sets of the accepted video samples that include at least one video line to determine video characteristics of the video signal.
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