P(D)=1+D+D^3 r palavra recebida û mensagem decodificada (estimada) s síndrome y saída série do circuito que calcula a síndrome (os quatro primeiros bits correspondem à mensagem transmitida quando a síndrome é nula) r û s y 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 1 1 0 1 1 1 0 1 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 1 1 1 0 0 0 0 1 1 1 0 0 0 0 1 0 1 0 0 0 1 0 1 1 0 0 0 0 1 1 0 0 0 0 0 1 1 0 1 1 1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 1 1 1 0 0 1 1 1 0 1 0 0 0 0 1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 1 1 0 0 0 1 1 1 0 0 0 0 1 0 0 1 0 0 0 1 1 1 1 0 0 0 1 1 1 1 0 0 0 1 0 1 0 0 0 1 0 1 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 1 1 1 1 1 0 0 1 0 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 1 0 0 1 1 0 0 1 0 0 0 0 1 0 1 0 0 0 0 1 1 1 1 0 0 0 1 1 1 0 0 0 0 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 1 0 1 0 0 1 1 1 0 1 0 0 1 0 0 0 1 1 1 0 1 0 0 1 0 0 1 1 1 0 0 0 0 1 0 0 1 0 0 0 1 0 0 1 1 0 0 1 1 1 1 0 0 0 1 0 0 1 1 0 0 1 1 1 1 1 0 0 1 1 1 1 1 0 0 1 0 1 0 0 0 1 0 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 0 0 1 1 1 1 0 0 0 1 1 0 1 1 0 0 1 0 1 1 0 0 0 1 1 1 0 0 0 0 1 1 0 0 1 0 0 1 0 1 1 1 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 1 0 1 1 0 0 0 1 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 1 1 0 0 1 0 1 0 0 0 0 1 0 0 0 1 0 0 1 1 1 0 0 1 1 0 0 0 0 1 0 0 1 0 1 0 0 0 0 1 1 1 0 1 0 0 0 1 1 0 1 0 0 1 0 1 0 1 0 0 1 1 1 1 0 0 0 1 0 1 1 1 0 0 1 0 1 1 1 0 0 1 1 1 1 1 0 0 1 1 0 1 1 0 0 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 1 0 0 1 0 0 0 0 1 0 1 1 1 1 1 0 0 1 1 1 0 1 1 0 1 0 0 0 1 0 0 1 1 1 1 0 0 0 1 1 1 0 0 1 0 1 0 0 0 1 1 0 1 1 1 0 0 0 0 1 1 1 0 0 0 0 1 0 0 1 0 0 0 1 0 0 1 0 1 0 1 1 1 1 0 1 0 1 0 0 1 0 1 1 0 0 1 0 0 1 0 1 1 1 1 0 0 0 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 1 1 1 1 0 0 1 0 0 1 1 1 0 1 1 1 1 1 1 0 1 1 1 1 1 1 0 1 0 1 0 0 0 1 0 0 0 0 0 1 0 1 1 0 1 0 0 0 1 0 1 0 0 1 0 1 0 1 1 0 1 0 1 1 0 1 0 1 0 1 0 1 0 1 0 0 1 1 0 1 1 1 0 1 1 0 1 1 1 0 1 0 1 0 1 1 0 1 1 1 0 1 1 0 1 1 0 1 1 0 0 1 0 1 1 0 0 0 1 1 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 1 0 1 0 0 0 1 0 1 0 0 1 1 0 0 1 0 0 1 0 1 1 1 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 1 0 1 1 1 1 0 1 1 0 1 0 0 0 1 1 0 0 0 1 0 1 1 0 0 0 0 0 1 0 0 1 1 1 0 1 0 0 1 1 1 0 1 1 0 0 0 1 0 1 0 1 0 1 1 0 1 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 0 0 1 0 1 0 0 1 0 0 0 1 1 0 0 1 1 0 1 1 1 1 0 1 0 1 0 0 1 0 1 0 1 1 0 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 1 0 1 0 1 0 0 1 0 0 0 1 0 0 0 0 1 0 1 1 0 1 1 0 0 1 0 0 1 1 0 0 1 0 0 0 1 1 0 1 1 0 1 1 1 0 0 1 1 0 1 0 0 1 0 0 0 1 0 0 1 1 1 0 0 0 0 1 0 1 1 0 0 0 1 0 1 0 0 1 0 1 1 1 0 0 1 0 1 0 1 0 0 0 0 1 0 1 0 0 0 0 1 1 1 0 1 0 0 0 1 0 0 1 0 0 1 0 1 0 1 0 0 1 1 1 0 1 1 0 1 0 1 1 1 0 0 1 0 1 0 1 1 0 1 1 1 1 0 0 0 1 0 0 0 1 1 0 1 0 1 1 1 0 0 1 1 1 1 0 1 0 1 0 1 1 1 1 0 1 0 1 1 1 1 0 1 1 1 1 1 0 0 1 1 0 1 0 1 0 1 0 1 1 0 1 0 1 1 1 1 1 1 1 0 1 1 0 0 1 0 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 1 0 0 1 0 0 0 0 0 1 1 1 0 1 1 0 1 1 1 1 0 1 0 1 1 0 0 0 0 1 0 1 1 1 0 1 1 1 1 1 1 0 1 1 1 1 0 0 0 0 1 1 1 1 1 1 0 1 1 1 1 1 0 1 1 0 1 0 0 0 1 0 0 1 1 1 0 1 1 0 1 1 1 0 0 1 1 1 0 0 0 1 0 1 1 0 0 1 0 1 0 1 1 1 0 0 1 0 1 0 0 0 1 1 0 1 1 1 0 0 0 0 1 1 1 0 0 0 0 1 0 0 0 1 1 1 1 1 1 0 1 0 0 1 1 1 0 0 0 1 1 0 0 1 0 0 0 1 0 0 0 0 1 0 1 1 1 1 0 1 0 1 0 0 1 0 0 1 1 1 1 1 1 1 0 1 1 1 1 0 1 1 1 0 0 1 0 1 0 1 1 1 1 1 0 0 1 1 1 1 0 0 1 1 0 0 1 0 1 1 1 1 1 1 0 0 0 1 1 1 1 0 0 0 1 0 0 1 1 0 0 1 1 0 0 1 0 1 1 1 1 1 1 0 1 1 0 0 1 1 0 1 0 0 0 1 0 0 1 1 1 1 1 1 0 0 1 0 0 1 1 1 0 1 1 1 0 0 1 1 1 1 1 1 1 1 0 1 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 0 0 1 1 0 1 0 0 0 1 1 1 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 0 1 0 1 0 1 0 0 1 0 1 1 0 1 0 1 0 1 0 1 0 0 1 1 1 1 0 1 1 1 0 1 1 0 1 0 1 1 1 0 1 0 1 0 0 1 1 0 0 0 1 1 1 1 0 1 1 1 0 1 0 1 0 1 0 1 1 1 0 1 1 1 1 1 1 0 1 1 1 1 1 0 1 0 1 1 0 1 1 1 0 1 0 1 1 1 0 1 1 0 1 1 0 1 0 1 1 1 0 0 1 1 0 0 1 1 1 0 1 1 0 0 1 0 1 1 0 0 0 1 1 0 0 1 1 1 1 1 0 0 1 1 1 1 0 1 1 0 0 1 1 1 0 1 0 1 1 1 1 0 0 1 1 0 1 0 1 1 0 1 0 0 0 1 0 0 0 1 1 1 0 0 1 0 0 1 0 1 1 0 1 1 1 1 1 1 1 0 1 1 1 0 0 1 0 1 1 0 1 1 1 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 1 0 1 1 1 0 1 1 1 0 0 1 0 0 1 1 0 0 0 0 1 1 0 1 1 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 0 1 1 1 1 1 1 0 1 1 0 1 0 1 1 0 0 0 1 0 1 1 0 0 0 0 0 1 0 0 0 0 1 1 1 0 0 1 1 1 0 1 1 0 0 0 0 1 1 0 0 1 1 1 1 1 0 0 1 1 1 1 1 1 0 0 0 1 0 1 0 1 0 1 0 1 1 0 0 1 1 0 1 1 1 0 0 0 1 1 0 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 0 0 1 0 0 1 1 0 0 1 0 0 1 0 0 1 1 1 0 0 1 0 1 1 0 0 1 0 0 0 1 0 0 1 0 0 0 1 1 0 0 1 1 0 1 1 1 0 0 1 0 1 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 1 1 1 0 1 0 0 1 0 1 1 1 1 0 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 1 0 0 1 1 0 0 0 1 0 0 1 0 0 0 0 0 1 1 1 0 1 0 1 0 1 0 0 0 1 1 0 1 0 0 0 0 1 1 1 1 0 1 0 1 1 1 1 1 1 0 1 0 1 0 0 0 0 1 0 1 1 0 1 1 0 0 1 0 0 0 1 1 1 1 0 0 0 1 1 1 1 1 0 1 1 0 1 1 0 0 1 0 1 1 1 0 0 0 1 1 0 1 1 0 1 1 1 0 0 1 1 0 0 0 1 1 0 0 0 1 0 0 1 1 0 1 1 1 1 1 0 1 1 1 0 1 1 0 0 0 1 0 1 1 1 1 0 0 0 0 1 0 1 0 1 1 0 1 0 1 0 0 1 1 1 1 1 0 0 0 1 1 1 0 1 0 1 0 1 0 1 0 0 1 0 1 1 1 0 0 1 0 1 0 1 0 0 0 0 1 0 1 0 0 0 0 1 1 1 0 0 1 1 1 0 1 0 1 0 0 1 0 1 0 0 0 1 1 1 1 0 1 0 0 0 1 0 0 0 0 1 1 0 1 0 1 0 0 1 1 1 0 1 0 1 1 0 0 1 1 0 1 1 0 1 0 1 0 1 1 1 1 0 1 1 0 1 0 1 0 1 1 1 1 0 1 0 1 1 1 1 1 1 0 1 1 1 1 0 1 1 0 1 1 1 0 1 0 1 1 0 1 1 1 1 0 0 0 1 0 0 0 1 0 1 1 0 1 1 1 0 1 1 1 1 1 0 0 1 0 1 0 1 0 0 1 1 0 1 1 1 0 0 1 1 1 1 0 1 0 1 0 1 0 0 1 1 1 0 1 1 1 1 0 1 1 1 1 0 1 1 1 0 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 0 0 1 1 0 0 0 1 0 1 0 1 1 0 1 0 1 1 1 1 1 0 1 1 0 1 1 1 1 0 1 0 1 1 0 1 1 1 1 1 1 1 1 0 1 0 1 1 1 0 0 1 0 1 1 0 0 1 1 1 1 1 1 1 1 1 0 1 1 0 0 0 1 0 1 1 0 0 0