Method and apparatus for reducing visibility of scanning lines in television picture
US4868656A · kind A · utility
9Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Jun 27, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and circuit arrangement for reducing the prominence of the scanning lines of an enlarged television picture by adding a plurality of scanning lines to an original television picture signal to form a modified picture signal, and supplying each added line with picture information from an adjoining one of the picture lines of the original television picture signal. This technique is applicable to television sets in which the pictures are stretched, in order for pictures having a different size and shape from that of the television screen to be shown in such a way that they fill the screen completely.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.