Devices, systems and methods for restricting use of digital content
US7188087B1 · kind B1 · utility
22Cited by
15References
42Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 15, 2000 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | May 15, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2005/91335
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Devices, systems and methods for restricting use of digital content are provided. Among those embodiments which may be construed as providing a method for restricting use of digital data, a preferred method includes the steps of: enabling a user to receive digital data; and preventing the user from copying the digital data to a digital data recording medium if: (a) copy information corresponding to the digital data indicates that such copying is not to be permitted; or (b) the digital data recording medium is not an authorized digital data recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.