INTRODUCTION TO IMS METHOD FOR THE THRESHOLD REALIZATION

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INTRODUCTION TO IMS METHOD FOR THE THRESHOLD
REALIZATION

• Implied Minterm Structure (IMS) method

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IMS method

• Write down the minterms
• These should be positive and ordered ,
  rigtN(1)/N(0) , this ratio in each column should
  be r1gtr2gtr3gtr4gtr5gt1
• Write it down in the IMS chart
• Select Nested Fs
• Realize each zone by Dertouzos method
• Connect with the help of OR gate(I/p 1,-1)

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Final Realization
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Finding weights and Threshold for F1
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Finding weights and Threshold for F2
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Finding weights and Threshold for F3
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Finding weights and Threshold for F4
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Example
(Modifying the function)
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Example
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Final realization
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Example
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Threshold Gate Realization

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Similarly,
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Realization of the Difference
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Realization of Borrow
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Complete realization of an Arithmetic Cell