Associative processor
US4254476A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1979 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | Jun 25, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/9014
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An associative processor for searching data stored in memory to identify messages or other data containing operator selected keywords containing alpha-numeric or other characters is disclosed. The identified messages or other data are then transferred from the memory to an output device for review. The processor comprises a plurality of commercially available integrated circuit random access memories (RAMs) for performing processing functions. The binary words read out of the RAMs are applied via a register to the higher order addressing inputs of the same RAMs without any processing. Messages being searched for keywords are applied to the lower order addressing inputs of the same RAMs. A binary word applied to the higher order addressing inputs of the RAM memory selects a block of memory bits with each bit being associated with a different character. Only memory bits within a selected block of memory bits corresponding to keyword characters being searched for contain binary words indicating the block of bits for the subsequent keyword character to be searched for. When a character being searched for is detected, the binary word in the corresponding memory location is read out and …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.