Method and system for control of broadcast content access
US7530085B2 · kind B2 · utility
16Cited by
36References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2001 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Sep 8, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4627
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for controlling access to content, including preventing access to content that corresponds to a blacked out event, until at least one of a time criterion and payment criterion is met. Related methods and apparatus are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.