Picture data recording apparatus and picture data reproducing ap

Details Picture data recording apparatus and picture data reproducing ap Picture data recording apparatus and picture data reproducing ap

1993-06-09

1995-01-24

Ruggiero, Joseph

Excavating

358335, G06F 1110

Patent

active

053847873

ABSTRACT:
In a picture data recording system, a coding processing unit encodes picture data having a quantity of data generated at a different point in time so that its data quantity becomes equal to a predetermined target data quantity at every predetermined field. An error correcting code adding unit adds known data to the picture data coded by the coding processing unit within a correcting ability range by error correcting codes to carry out a parity calculation so as to add an error correcting code to picture data of a predetermined target data quantity. Thus, a recording unit records, onto a recording medium such as a magnetic tape, etc., the picture data having the predetermined target data quantity to which the error correcting code is added by the error correcting code adding unit. In addition, in a picture data reproducing system, a reproducing unit reproduces picture data from the recording medium. Then, an error correcting processing unit adds known data to the picture data having the predetermined target data quantity obtained from the reproducing unit to implement an error correcting processing thereto on the basis of an error correcting code used in the picture data recording system.

REFERENCES:
patent: 4408326 (1983-10-01), Takeuchi et al.
patent: 4414668 (1983-11-01), Iwasaki
patent: 4729043 (1988-03-01), Worth
patent: 4953168 (1990-08-01), Odaka
patent: 4972417 (1990-11-01), Sako et al.

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