Method and apparatus for recording and/or reproducing digital data
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United States of America Patent
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-
Nov 21, 1989
Grant Date -
N/A
app pub date -
Nov 3, 1987
filing date -
Nov 5, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In apparatus for recording and/or reproducing digital data, digital data such as video data is encoded with error correction codes including outer codes and inner codes so that respective predetermined numbers of symbols form respective blocks to be added with synchronizing data and so on, then recorded with rotary heads on slant tracks of a tape medium such as a magnetic tape. The redundancy symbols of the outer error correction code followed by the information data and inner error correction code are recorded at the beginning of each track, so that even if the data reproduced from the beginning portion of the tape contains error, the information data is not much influenced by that error.
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