Figure 4.10 Multilevel:2B10 scheme Previous level:Previous level: positive negative Next Next Next bits level level 00 +1 -1 +3 -3 10 -1 +1 -3 +3 Transition table 00!11 01 1001 = Save=N/4 +3 0 1 Bandwidth Time 0.5 0 1/2 2 f/N Assuming positive original level 4.304.30 Figure 4.10 Multilevel: 2B1Q scheme