Machine process for converting one representation of an electronic integrated circuit into another representation
US4954953A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1988 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Apr 7, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/33
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A digital computer having stored therein a program receives information on pin locations, logic equations and timing delays from a plurality of inputs to a plurality of outputs of a representation of an electronic integrated circuit. A first representation of the electronic integrated circuit is constructed by the program based upon the input information. The first representation has a plurality of nodes interconnecting a plurality of first electronic logic circuit elements, with the first electronic logic circuit elements in the primitives of a first simulator. The first representation is transformed into a second representation which is the logical equivalent of the first representation in accordance with the following rules: All directly serially connected first electronic logic circuit elements that can be collapsed are collapsed; and a first electronic logic circuit element which is not recognized as a primitive by a second simulator is transformed or expanded into equivalent logical elements which are primitives of the second simulator; provided that the second representation does not comprise directly serially connected primitives. The timing delay for each electronic logic …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.