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US 7,024,639 B2Granted
Method and apparatus for specifying encoded sub-networks
AssigneeCadence Design Systems, Inc.
InventorsSteven Teig, Asmus Hetzel
Life of this patent
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AssigneeCadence Design Systems, Inc.
InventorsSteven Teig, Asmus Hetzel
Estimating the term…
Some embodiments of the invention provide a method for pre-tabulating sub-networks. This method (1) generates a sub-network that performs a function, (2) generates a parameter based on this function, and (3) stores the sub-network in a storage structure based on the generated parameter. In some embodiments, the generated sub-network has several circuit elements. Also, in some embodiments, the generated sub-network performs a set of two or more functions. Some embodiments store each generated sub-network in an encoded manner. Some embodiments provide a method for producing a circuit description of a design. This method (1) selects a candidate sub-network from the design, (2) identifies an output function performed by the sub-network, (3) based on the identified output function, identifies a replacement sub-network from a storage structure that stores replacement sub-networks, and (4) replaces the selected candidate sub-network with the identified replacement sub-network in certain conditions. In some embodiments, this method is performed to map a design to a particular technology library. Some embodiments provide a data storage structure that stores a plurality of sub-networks based on parameters derived from the output functions of the sub-networks.
A method of specifying sub-networks, the method comprising:
A method of specifying sub-networks, the method comprising:
A computer readable medium that stores a computer program for specifying sub-networks, the computer program comprising sets of instructions for:
Dependencies are inferred from the claim text.