Image storage using separately scanned luminance-detail and narrowband color-component variables
US4779144A · kind A · utility
9Cited by
11References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1987 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Mar 2, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/646
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Computer main memory is used for storing relatively densely sampled luminance detail information concerning a television display and for storing relatively sparsely sampled narrowband color-component information concerning the same television display. The relatively densely sampled luminance detail information is read out in substantially real-time from computer main memory during line trace intervals in the television display. The relatively sparsely sampled narrowband color-component information is read out of computer main memory in advanced and compressed time during selected line retrace intervals in the television display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.