The CVSD scheme is described in Section 18.5. Assume that the current value of x(k) is 1000, the current value of xn1k - 12 is 990, and the current value of ?(k - 1) is 30. a. Assume that the last 4 output bits are the same. Calculate the next value of xn1k - 12. b. Repeat part (a) when the last 4 outputs are not the same.

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