Digital data filter for local area network
US4754420A · kind A · utility
9Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1985 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Nov 14, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2207/025
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for digital filtering of sequences of data units, such as sequences of bytes. The apparatus uses parallel application of more than one filter and stores the results of applying all filters to a whole sequence of data units. The apparatus involves the interaction of random access memories. Hence, filters are programmable. In addition, individual data units in a sequence may be trapped for comparison solely as a function of their ordinal position in the sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.