Low bit rate compression format conversion for improved resolution
US6573941B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2002 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Apr 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for format conversion includes providing a first interlaced video signal including non-progressive video of a first resolution, downconverting fields of the first resolution to fields of a second resolution, and combining and interlacing the fields at a third resolution. The video signal is transmitted at the third resolution. The video signal of the third resolution is deinterlaced to form a progressive format video. The progressive format video is converted to the first non-progressive resolution by alternately adjusting position of the progressive format of the third resolution up and down to make upper and lower fields, respectively, of the first resolution for display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.