Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 4 (Q.No. 42)
42.
The circuit shown in the figure converts
BCD to Binary code
Binary to excess - 3 code
Excess - 3 to Gray
Gray to Binary
Answer: Option
Explanation:

Let input is 1 1 0 1

y1 = x1

y2 = x2x1 ⇒ 1 ⊕ 1 = 0

y3 = x3x2 = 0 ⊕ 0 = 0

y4 = x4x3 = 1 ⊕ 0 = 1

if input is gray then y1 y2 y3 y4 will be Binary.

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