Service gateway for interactive television
US7484236B2 · kind B2 · utility
15Cited by
16References
131Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2002 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Jul 25, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L51/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A service gateway provides a proxy between a client protocol and a plurality of standard communication protocols. The service gateway provides asymmetrical routing, data compression and encryption to optimize client processing power and communication link bandwidth. The service gateway enables content translation between clients and service providers. The service gateway keeps track of client available memory and sequence numbers in messages to generate error codes when applicable. A store and forward message capability is provided along with abstract session identifiers. The service gateway supports user datagram protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.