Error detection and correction in binary content addressable memory (BCAM)
US9529669B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2014 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Dec 16, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1068
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A binary content addressable memory (BCAM) is disclosed. The BCAM includes a memory array, data signature circuitry, and a data match module and compare circuitry. The memory array is configured to store a data entry for a data word and a corresponding data signature for the data entry. The data signature circuitry is configured to calculate the data signature for the data entry and to calculate the data signature for an input word. The data match module compares the data entry to the input word to produce a content match output, and compares the data signature for the data entry to the data signature of the input word to produce a signature match output. The compare circuitry compares the content match output and the data signature match output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.