System and method for dynamically transmitting network alert system (NAS) information from television network to stations using information embedded in an HDTV signal
US8484674B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2012 |
| Grant date | Jul 9, 2013 |
| Priority date | — |
| Expiry date | Jan 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/445
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for dynamically transmitting network alert system (NAS) information from a television network to an affiliate station using information embedded in an HDTV signal includes a program data server configured to provide network alert system (NAS) data, a network video programming source configured to provide network video programming, a data inserter configured to insert the NAS data into vertical ancillary (VANC) space of a high definition television (HDTV) signal to develop a combined network video programming and NAS data signal, and a transmission facility configured to transmit the combined network video programming and NAS data signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.