Patent ID: 7760815

Claim:
A transmission apparatus comprising: a converting section that has input thereto through different routes a first information sequence comprising a plurality of bits and a second information sequence comprising a plurality of bits and that generates a sequence of bits including at least one bit of the first information sequence and at least one bit of the second information sequence; and a modulation section that modulates the sequence of bits into symbols such that each of the symbols is expressed using three or more bits, wherein: the first bits and the second bits of the symbols comprise bits of a set comprising bits corresponding to the first information sequence and bits corresponding to the second information sequence, in each symbol, the bits corresponding to the first information sequence have a relation to the bits corresponding to the second information sequence, the more lower hits than the second bits of the symbols are comprised of bits corresponding to the second information sequence, and a bit corresponding to the second information sequence is arranged on the second bit of at least one of the symbols.