Compare circuit and method for content addressable memory (CAM) device
US6988164B1 · kind B1 · utility
8Cited by
24References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2002 |
| Grant date | Jan 17, 2006 |
| Priority date | — |
| Expiry date | Sep 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C15/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A content addressable memory (CAM) device (100) may include a number of sub-blocks (102-8 to 102-15) that can generate CAM search results. In a “search beyond” operation, sub-blocks (102-8 to 102-15) may be excluded from a search operation according to criteria, including a sub-block address and a soft-priority value. A CAM device may include a compare circuit (400) that may compare sub-block address values in a time division multiplexed fashion to establish priority from among multiple CAM sub-blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.