Method and device for providing controlled access video signals without providing a signal in the clear
US6226384A · kind A · utility
7Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1996 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Dec 18, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device for receiving encrypted or scramble video data and for decrypting or descrambling the video data such that a signal is not provided "in the clear". The video data is stored in a memory array in an encrypted form and read out from the memory array using a decryption key. The encrypted data is then read out from the memory elements in accordance with known methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.