David Karchmer
27Patents
8h-index
29Co-inventors
71Inventor score
Filing activity: Sep 26, 1995 → Oct 11, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6026226A | Local compilation in context within a design hierarchy | Emerging Cross-Sectional Technologies | 99 | Expired |
| US6167364A | Methods and apparatus for automatically generating interconnect patterns in programmable logic devices | Physics | 52 | Expired |
| US7669157B1 | Method and apparatus for performing incremental compilation using top-down and bottom-up design approaches | Physics | 20 | Active |
| US7784008B1 | Performance visualization system | Physics | 17 | Active |
| US7275232B2 | Methods for producing equivalent field-programmable gate arrays and structured application specific integrated circuits | Physics | 17 | Expired |
| US7584443B1 | Clock domain conflict analysis for timing graphs | Physics | 15 | Active |
| US6173245A | Programmable logic array device design using parameterized logic modules | Physics | 15 | Expired |
| US6697773B1 | Using assignment decision diagrams with control nodes for sequential review during behavioral simulation | Physics | 14 | Expired |
| US8112728B1 | Early timing estimation of timing statistical properties of placement | Physics | 8 | Active |
| US7464362B1 | Method and apparatus for performing incremental compilation | Physics | 8 | Active |
| US7853911B1 | Method and apparatus for performing path-level skew optimization and analysis for a logic design | Physics | 7 | Active |
| US7231337B1 | Using assignment decision diagrams with control nodes for sequential review during behavioral simulation | Physics | 5 | Expired |
| US6961690B1 | Behaviorial digital simulation using hybrid control and data flow representations | Physics | 4 | Expired |
| US8572530B1 | Method and apparatus for performing path-level skew optimization and analysis for a logic design | Physics | 4 | Active |
| US5768562A | Methods for implementing logic in auxiliary components associated with programmable logic array devices | Physics | 4 | Expired |
| US8516504B1 | Method for adding device information by extending an application programming interface | Physics | 4 | Expired |
| US7064580B2 | Mask-programmable logic device with programmable portions | Electricity | 4 | Expired |
| US8250505B1 | Method and apparatus for performing incremental compilation using top-down and bottom-up design approaches | Physics | 4 | Active |
| US7725856B1 | Method and apparatus for performing parallel slack computation | Physics | 4 | Active |
| US7358766B2 | Mask-programmable logic device with programmable portions | Electricity | 4 | Active |
| US7877721B2 | Methods for producing equivalent field-programmable gate arrays and structured application-specific integrated circuits | Physics | 3 | Active |
| US7577929B1 | Early timing estimation of timing statistical properties of placement | Physics | 3 | Active |
| US7587688B1 | User-directed timing-driven synthesis | Physics | 2 | Active |
| US8161469B1 | Method and apparatus for comparing programmable logic device configurations | Physics | 2 | Active |
| US8589838B1 | M/A for performing incremental compilation using top-down and bottom-up design approaches | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.