Information access system, information distribution device, information access device, information distribution method, and information access method
US7752643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2004 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Jun 11, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8543
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information search system is provided. The information search system is capable of searching a target content based on meta information provided by a broadcast station, in which a reception device makes an inquiry toward a directory service server based on a meta information reference ID accompanying meta information coming from the broadcast station so that a meta information group is derived for reference by the meta information reference ID. Also, another inquiry is made toward a content service server based on address information or a keyword of the content included in sub meta information in the meta information group so as to perform a search for any desired content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.