Digital television system and method
US4280147A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1979 |
| Grant date | Jul 21, 1981 |
| Priority date | — |
| Expiry date | Feb 2, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are disclosed for assembling digital data representing a T. V. picture, including the steps of producing digital words representing a line of video, producing a digital code indicative of each line of video, producing a digital code indicative of the field containing the line, combining the digital codes and the digital words for each line of video, storing the digital words line-by-line until a number of lines at least equal in number to the number of lines in a field has been stored, and reading out the digital words. One advantage afforded by the invention is that for fast winding during editing, the stored field of video can be made up of lines derived from a number of different fields, thereby not only reducing the amount of storage required, but also speeding up the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.