Method and system for modeling the behavior of a circuit
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United States of America Patent
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Jul 6, 1999
Grant Date -
N/A
app pub date -
May 3, 1996
filing date -
May 3, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and system for modeling the behavior of a circuit are disclosed. A list specifying a plurality of transistors within the circuit and interconnections between the plurality of transistors is provided. Each fan node within the circuit is identified, where a fan node is defined as a point of interconnection between two or more of the plurality of transistors from which multiple nonredundant current paths to power, ground, or an input of the circuit exist. A fan node equation set is constructed that expresses a logical state of each fan node of the circuit in response to various transistor gate signal states. In addition, an output node equation is constructed that expresses a logical state of an output node of the circuit in terms of selected fan node logical states and specified transistor gate signal states. In response to receipt of a set of states of inputs to the circuit, a logical state of the output node is determined utilizing the fan node equation set and the output equation in order to model behavior of the circuit.
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