Pseudo interlacing in digital video
US5850264A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1995 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Dec 19, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/587
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Sequential digital video frames are divided into two interleaved fields comprising even-numbered horizontal lines of pixels and odd-numbered lines horizontal lines of pixels respectively. The "even" field of a first standard frame is combined with the "odd" field of a second standard frame to form a first pseudo-interlaced frame of data for display; then the same odd field is combined with the even field of a third standard frame to form a second pseudo-interlaced frame of data for display, and so on throughout a continuing digital-video message. The data transmission rate needed is thus reduced by nearly a factor of two, or conversely, for a given data rate, nearly twice as much video information can be transmitted in the same time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.