41. Grieve did not elaborate, but it was often IRA practice to use codewords when warning of attacks. 42. Codewords are 8 bits long and use the Reed Solomon error correction algorithm with four error correction levels.43. This matrix is essentially a list of all the codewords in C where each column is a codeword. 44. This marketplace contains so many corners where you can hide something, especially if you offer it under codewords , 45. These are the nonzero codewords of the quadratic residue code of length 7 over the field of 2 elements. 46. The codewords are either address or data, which is indicated by the first bit transmitted, bit 31. 47. Practical decoding involved changing the view of codewords to be a sequence of coefficients as explained in the next section. 48. By the above observation, we know that no two codewords can share the first n-\ ell symbols. 49. When this occurs, both the CSCC and the address codewords are displaced with the data appended to the address codeword. 50. Notice that in a linear code, the distance is equal to the minimum weight of all codewords of that code.
