How do you find 8 bit stream in NRZI encoding?

To find an 8-bit stream in NRZI (Non-Return-to-Zero Inverted) encoding, you start by defining the initial signal level, typically a high or low voltage. In NRZI, a change in signal level represents a binary '1', while no change indicates a binary '0'. By interpreting the transitions in the signal, you can construct the original 8-bit stream based on these rules. For example, if the signal remains constant, it represents a '0', and if it flips, it represents a '1'.