Video signal converting apparatus for converting an interlace video signal into a non-interlace video signal for reduction
US5473382A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1993 |
| Grant date | Dec 5, 1995 |
| Priority date | — |
| Expiry date | Nov 3, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of converting and displaying scan lines for displaying interlace video signals permitting television or the like, represented by the NTSC standard, on a non-interlace display apparatus, including a reduction of images. Scan lines of a video signal are converted by a horizontal coordinate conversion circuit, a horizontal filtering circuit, a vertical coordinate conversion circuit, a vertical filtering circuit, and a one-scan line portion of line memory. The coordinates are converted on the basis of the coordinate system of the frame of the interlace video signal; and filtering in the vertical direction is performed in field units based on the coordinate conversion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.