Method and mechanism for identifying and tracking shape connectivity
US7665045B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2005 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Apr 30, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/39
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and mechanism is disclosed for identifying and tracking nets in an electrical design. A hierarchical design does not have to be flattened to perform the operation of identifying and tracking nets. To identify sets of connected shapes, instead of having to unfold the entire design hierarchy, only the specific instances of shapes falling within the geometric bounds of shapes identified as being part of a net needs to be unfolded to perform the search. When composing the list of nets for a hierarchical design, the unfolded shapes at other hierarchical levels of the design can be derived based upon virtual terminal structures that implicitly references nets and objects at other levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.