Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data in specific format
Patent
1993-01-15
1994-05-03
Hajec, Donald
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data in specific format
360 32, 348409, G11B 509, H04N 712
Patent
active
053092929
ABSTRACT:
In a digital VTR that carries out magnetic recording and reproduction by bit rate reduction coding a digital video signal, a fixed length block is formed by controlling the code amount of a large block including a plurality of small blocks located distant from each other on a screen at the time of recording. The fixed length block is divided into a plurality of recording blocks so that the main components of respective small blocks are included separately on the recording blocks, whereby error correction is applied to form a plurality of error correction blocks. The error correction blocks are rearranged so that recording blocks including the main components of small blocks adjacent on a screen are also adjacent on a recording medium. Thus, the possibility of deviation in the information amount of each large block is suppressed to improve efficiency of bit rate reduction coding, and to obtain a high speed reproduced picture of high quality.
REFERENCES:
patent: 5073821 (1991-12-01), Juri
patent: 5173773 (1992-12-01), Ueda et al.
patent: 5175631 (1992-12-01), Juri et al.
Hajec Donald
Kim Won Tae C.
Sharp Kabushiki Kaisha
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