Transcript INTRODUCTION TO IMS METHOD FOR THE THRESHOLD REALIZATION Implied Minterm Structure (IMS) method IMS method.

INTRODUCTION TO IMS
METHOD FOR THE
THRESHOLD REALIZATION
Implied Minterm Structure (IMS)
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• Write down the minterms
• These should be positive and ordered ,
ri>=N(1)/N(0) , this ratio in each column
should be r1>=r2>=r3>=r4>=r5>=1
• Write it down in the IMS chart
• Select Nested F’s
• Realize each zone by Dertouzo’s 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
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