Method for storing Boolean functions to enable evaluation, modification, reuse, and delivery over a network
US6910033B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2002 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | Oct 13, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99945
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Data structures for storing subscription predicates for transmission in a publish-subscribe network. Subscriptions include Boolean-valued predicates defining content desired by a subscriber. An agent application converts the predicates into a suitable form for storing them in a common data structure. The predicates are used to generate filters to encapsulate the subscriptions, and the filters are specified in the data structure in addition to the Boolean relationships of the predicates. Routers in a network core use the data structure for content-based routing, which involves applying attributes in received packets to the filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.