Method and apparatus for limiting storage or transmission of visual information
US6801642B2 · kind B2 · utility
87Cited by
7References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2002 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Jul 31, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00838
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method carried out at a transmitter (800), of limiting visual information that can be stored or transmitted captures a visual image (608). Whenever a control signal is detected (612) at the transmitter (800), at least a portion of the visual image is obscured (616) to produce an obscured visual image. This obscured image is then stored and/or transmitted (620). The image can be obscured by any number of techniques including replacement of the image with a substitute (718), blurring, distorting or reducing the resolution of the background (738), substitution of backgrounds (762) or removal of the background (778).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.