AbstradIn this paper, we propose the modified SECAM video encoder and decoder system. The SECAM broadcasting standard uses frequency modulation (FM) to transmit the Db and Dr color difference information with each component having its own sub-carrier. The SECAM encoder system requires an anti4oche filter recommended by ITU-R BT.470, However, the design of the filter is difficult, because the frequency response of the filter is very sharp. So, we convert standard filter into digital filter which could be designed more easily than analog standard filter.The proposed SECAM decoder uses hvo differentiators, f o~ d . Z M H Z , A& =23OkH~.
0-7803-8943
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