System for searching a data base by creating a marking matrix in which two dimensional patterns control the search and selection
US5377348A · kind A · utility
72Cited by
6References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 4, 1992 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Jun 4, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99933
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A two dimensional matrix of marks indicating match or mismatch of one or more search arguments with the value of data elements accessed from a field common with all records of a database file. The matrix of marks created after one pass through all the records of the file is searched for a specified pattern which identifies records where the data element values, as between successive records, have a certain sequence as specified by the search arguments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.