Video signal compression apparatus for independently compressing odd and even fields
US5185819A · kind A · utility
146Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1991 |
| Grant date | Feb 9, 1993 |
| Priority date | — |
| Expiry date | Apr 29, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a video compression system odd and even fields of video signal are independently compressed in sequences of intraframe and interframe compression modes. The odd and even fields of independently compressed data are interleaved for transmission. The fields are interleaved such that intraframe even field compressed data occurs midway between successive fields of intraframe odd field compressed data. The interleaved sequence provides receivers with twice the number of entry points into the signal for decoding without increasing the amount of data transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.