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The 10-bit code group is split into a 6-bit sub-block (111100) and a 4-bit sub-block
(0110). Since the 6-bit sub-block contains more l ’s than 0’s, the running disparity at the
end of this block will be positive. This positive value is used as input to the 4-bit sub
block and since this sub-block has an equal number of l ’s and 0’s, the running disparity
at the end of this block will be same as its beginning, this being positive. Hence, the
running disparity at the end of the code group is positive.
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