Method and apparatus for selectively viewing nets within a database editor tool
US6516456B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1997 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Jan 27, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/392
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for selectively viewing nets within a database editor tool. The present invention provides four primary features for selectively viewing nets. First, the present invention contemplates selecting a number of objects, and viewing only those nets that are either driven from or received by the selected objects. In a preferred embodiment, the number of objects are placed objects within a placement tool. Second, for those nets that are selected, and that are also coupled to un-placed cells, the present invention contemplate providing fly-wires from the corresponding selected objects to a predetermined location representative of an approximate expected location for the un-placed cells. Third, the present invention contemplate providing a vector filter which may permit only vectored nets with a selected bus width range to be viewed. Finally, the fourth feature of the present invention contemplates providing a means for selectively viewing only those nets that cross a predetermined hierarchical boundary within the circuit design database.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.