Digital magnetic recording/reproducing method and apparatus therefor for recording re-arranged sync blocks
US5335117A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1992 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Nov 3, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/783
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for digital magnetic recording and reproducing of video images while compressively encoding video image data to reduce a bit rate includes the steps of forming the compressed data into sync-block units corresponding to minimum units for error-correcting, recording the compressed data as sync block units on a plurality of tracks of a digital magnetic tape, and reproducing a recognizable image corresponding to the video image data from the recorded compressed data. According to one aspect of the method, the sync blocks are arranged so as to be recorded on the plurality of tracks using a line sequential scanning method in the track-traversing direction, and the arranged sync blocks are restored to their original locations during reproduction. A digital magnetic recording and reproducing apparatus suitable for implementing the above method is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.