Video line rate converter
US4694337A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1986 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Jan 23, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for converting an input video signal having P input lines, P being an integer much greater than one, into an output video signal having Q output lines, Q being an integer much greater than one but different than P. The conversion is preferably carried out using a linear interpolation method wherein the video information in the input signal is evenly distributed throughout the video output signal. The input lines are stored in small groups of M input lines and the output signal is generated in groups of N output lines. Each group of output lines is generated shortly after the receipt of an associated group of input lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.