Apparatus and method for recycling and reproducing a digital vid

Details Apparatus and method for recycling and reproducing a digital vid Apparatus and method for recycling and reproducing a digital vid

1993-03-23

1995-01-10

Hajec, Donald

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

360 53, 358335, G11B 509, H04N 576

Patent

active

053812743

ABSTRACT:
An information data recording apparatus includes a DCT (discrete cosine transform) circuit (3) for processing a video signal in a DCT fashion, a quantizer (4) for quantizing an output signal of the DCT circuit (3), outer code circuits (5) and (10) for adding an error correction code to quantized data from the quantizer (4), and a recording head (13) for recording output data on a magnetic tape (14), whereby a high frequency component of data or outer code is recorded on first and last tracks of tracks of one field. Of the tracks constructing one field, a high frequency component of data or outer code that is less affected by a reproducing error is recorded on respective end tracks that have the large possibility that original recorded data will be broken by a mis-tracking upon editing. Therefore, even when an edit point is displaced by the mis-tracking upon editing so that the original recorded data is broken to cause an error to occur, an amount that a picture quality of a reproduced picture is deteriorated when the error occurs can be reduced considerably.

REFERENCES:
patent: 4692812 (1987-09-01), Hirahara et al.
patent: 4799113 (1989-01-01), Maura Kami
patent: 4882732 (1989-11-01), Kaminaga
patent: 5073821 (1991-12-01), Juri
patent: 5223991 (1993-06-01), Nagai et al.

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