  We report an experimental realization of bit-flip error rejection for
error-free transfer of quantum information through a noisy quantum channel. In
the experiment, an unknown state to be transmitted is encoded into a two-photon
entangled state, which is then sent through an engineered noisy quantum
channel. At the final stage, the unknown state is decoded by a quantum parity
measurement, successfully rejecting the erroneous transmission over the noisy
quantum channel.
