Implementing computational memory from content-addressable memory
US9177646B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 6, 2013 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Jan 2, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/1027
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A content-addressable memory (CAM) with computational capability is described. The CAM includes an array of CAM cells arranged in rows and columns with a pair of search lines associated with each column of the array and a match line associated with each row of the array. The array of CAM cells is configured to implement, for a given cycle, either a read operation of data contained in a single selected column, or one of a plurality of different bitwise logical operations on data contained in multiple selected columns. All of the pairs of search lines in the columns of the array are configured to a certain state to implement the read operation or one of the plurality of different bitwise logical operations. A result of the read operation or one of the plurality of different bitwise logical operations is outputted onto all of the match lines in the array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.