Communicating scripts in a data service channel of a video signal
US6938270B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1999 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Sep 11, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8586
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Described are methods and apparatus for enhancing an information resource, such as a Web page, simultaneously residing in memory on a number of remote receivers. A content creator, (e.g., a program producer, broadcaster, affiliate, cable company or satellite provider), embeds a trigger in a data service channel of a broadcast signal. The trigger includes a resource identifier unique to the information resource and a script capable of modifying the information resource. The script might be a script or a segment of a script written in a conventional scripting language. Each receiver that includes the targeted information resource monitors the data service channel of the broadcast video signal for script-bearing triggers directed to that resource. If a receiver receives a script-bearing trigger directed to the resident resource, the receiver executes the script contained within the trigger to alter the resource and/or the displayed video defined by the resource.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.