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Q#1 Sequential Circuits GATE EE 2020 MCQ +1 mark -0.33 marks

A sequence detector is designed to detect precisely 3 digital inputs, with overlapping sequences detectable. For the sequence (1,0,1) and input data (1,1,0,1,0,0,1,1,0,1,0,1,1,0), what is the output of this detector?

1,1,0,0,0,0,1,1,0,1,0,0

0,1,0,0,0,0,0,1,0,1,0,0

0,1,0,0,0,0,0,1,0,1,1,0

0,1,0,0,0,0,0,0,1,0,0,0

Explanation:

The sequence detector will output 1 as soon as a sequence 101 is detected & until then output remains 0.

Due to overlapping sequences, we can use digits of previous sequence to generate new sequence.

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