Anti-piracy video transmission and display
US11533450B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2017 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Dec 14, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2005/91392
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems described herein generate content that quickly cycles between different-colored frames at a rapid rate that may be imperceptible to human viewers. The human eye tends to blend nearby frames together, so that a human viewer will see a full color spectrum even though only a single color is displayed at any given time. The video display may repeatedly cycle between individual color frames, thus providing video content that appears normal to a human viewer. However, a video recording device may capture only some of the color frames. Therefore, the video recorded by video recording devices may include undesirable color flicker or other color artifacts, which may deter unauthorized copying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.