Multichannel digital television system
US6839901B1 · kind B1 · utility
9Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2000 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Apr 20, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4882
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital television system including a transmission means for transmitting digital audiovisual information on a plurality of channels and means for introducing in real time an event message concerning a live event broadcast on at least one channel into the datastream of at least one other channel, where the event message includes information regarding the occurrence of an event and the channel on which the event has occurred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.