Display device with local decryption of digital data
US12154462B2 · kind B2 · utility
0Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 16, 2022 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Mar 21, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device including an array of display blocks, each display block including luminous elements and a driving circuit for the luminous elements; an array of control circuits associated with the display blocks; and a video card receiving an encrypted digital signal to be displayed and sending the encrypted digital data to be displayed to the control circuits Each control circuit includes: a first memory circuit receiving and storing the encrypted digital data; a second memory circuit storing a decryption key; and a decryption circuit decrypting the encrypted digital data using the decryption key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.