Database system facilitating parametric searching
US6820076B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2002 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Dec 24, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99936
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one aspect of the invention, a computer-implemented database system (10) includes a first table (22a) including rows each corresponding to a keyword and each including an identifier uniquely identifying the keyword. Each keyword corresponds to one or more items for which a parametric search may be performed. A second table (22b) includes rows each corresponding to an attribute of one or more items and each including an identifier uniquely identifying the attribute and a name of the attribute. A third table (22c) includes rows each corresponding to a keyword-attribute combination and each including the identifier for the keyword, the identifier for the attribute, and a set of all valid attribute values for this combination. A fourth table (22d) includes rows each corresponding to an item and each including an identifier uniquely identifying the item, a name for the item, and the identifier for the keyword for the item. A fifth table (22e) includes rows each corresponding to an attribute value of an attribute of an item and each including the attribute value, the identifier for the attribute, the identifier for the item, and the identifier for the keyword for the item.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.