To provide a viterbidecoding apparatus and a viterbidecoding method by which a low-delay processing is realized by not performing an iterative processing, and the deterioration of decoding accuracy in a decoding sequence end caused by a trancation error is reduced. 繰り返し処理を行わないことで低遅延処理を実現し、且つ、打切り誤差による復号系列端の復号精度の劣化を低減するビタビ復号装置及びビタビ復号方法を提供すること。 - 特許庁