Recording digital signals
US4277807A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1979 |
| Grant date | Jul 7, 1981 |
| Priority date | — |
| Expiry date | Jun 7, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/888
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of recording digital video signals, particularly color television signals, in such a manner that type drop outs and other errors can be corrected, comprises arranging the words in a manner on a recording medium such that the information used to replace an error comes from a part of the recording medium which is statistically well separated from the error. This is achieved using a plurality of recording tracks. Apparatus for carrying out the method comprises a plurality of shift registers for storing the digital signals, and means for reading out the signals in the desired manner. The preferred method of error correction is to arrange signals from the same line of video raster.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.