In their Comment, de Almeida and Palazzo ͓Phys.Rev. A 72, 026301 ͑2005͔͒ discovered an error in my earlier paper concerning the construction of quantum convolutional codes ͓Phys.Rev. A 58, 905 ͑1998͔͒.This error can be repaired by modifying the method of code construction.
I report two general methods to construct quantum convolutional codes for N-state quantum systems. Using these general methods, I construct a quantum convolutional code of rate 1/4, which can correct one quantum error for every eight consecutive quantum registers.