System and method for transmitting and utilizing electronic programs guide information
US7210159B2 · kind B2 · utility
21Cited by
47References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2000 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Apr 30, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/41
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Television schedule information transmission and utilization systems transmit TV schedule data and associated network control messages provided by computer as packets via the Video Blanking Interval (VBI) lines in the TV signal from various television program providers. This data is acquired by regional data processing systems and forwarded by the regional data processing systems to subscriber units and used to construct an internal database. This internal database can be accessed by the subscriber unit to display a TV schedule for the channels that are received by the user's TV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.