System and method for interfacing multiple electronic devices
US7017171B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1999 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Mar 18, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2005/91328
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for operating a video processing system by receiving initial copyright information from a first source, storing the initial copyright information, receiving updated copyright information from a second source, and updating the stored copyright information in response to the updated copyright information. For example in one embodiment of the present invention, the initial copyright information for a program is received from an electronic program guide and updated copyright information is received along with the selected program. The video processing system may be programmed to operate in a first operating mode in response to the initial copyright information and the operating mode of the video processing system may be switched to a second operating mode in response to the updated copyright information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.