Program and data alerts and auxiliary datastreams in a multichannel broadcast system
US7995673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2005 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Apr 24, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H20/55
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method (130, 135 and 140) for a user of a multichannel broadcasting service listening to a particular channel provides alerts about the content currently available on other channels which are of interest to the user. Auxiliary data streams of interest can be presented for display in conjunction with the audio transmission of a related or unrelated channel. The system and method include storing criteria associated with programming or auxiliary content of interest to a user and searching for unique identifiers within the broadcast signal signifying the availability of content which meets the criteria. Content of interest can be, for example, traffic information (105, 110, 120, 111 and 125), sports games available on other channels, sports scores, stock or other trading instruments prices, news headlines or travel information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.