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With reference now to the drawing, it may be seen that the various blocks depicted therein are ...

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Apparatus for reproducing digital data

Details

Inventors: Yoshinaka, Tadaaki;
Assignee: Sony Corporation (Tokyo, JP)
Primary Examiner: Canney; Vincent P.
Assistant Examiner:
Attorney, Agent or Firm: Eslinger; Lewis H., Maioli; Jay H.

In a digital video tape recorder designed for recording each unit of video data in a plurality of tracks simultaneously by the use of a plurality of magnetic heads, the shift value between a track scanned by a magnetic head in a reproducing mode and another track recorded previously by the same magnetic head is decided from the majority of shift values obtained with respect to the individual magnetic heads, and the contents of identifying signals included in the pickup data are determined in accordance with the majority-decided shift value, whereby accurate shift values and identifying signals are ensured to consequently realize satisfactory picture reproduction.

DETAILED DESCRIPTION Therefore an object of the present invention resides in providing an improved digital data reproducing apparatus which eliminates the drawbacks mentioned above.
And another object of the invention is to provide an improved digital data reproducing apparatus which is capable of exactly recognizing the data state when processing the data in each channel data processing circuit and thereby outputting satisfactory data with high reproducibility.
According to one aspect of the present invention, there is provided an apparatus for reproducing digital data one unit of which is divided into a plurality of channels, supplemented with at least one kind of identifying data and recorded on a plurality of tracks of a tape recording medium.
The apparatus comprises a plurality of reproducing heads corresponding to the tracks for reproducing digital data from the recording medium; means for detecting the identifying data added to the reproduced digital data on respective reproduced tracks; means for detecting respective relationships between the reproducing heads and the tracks reproduced by the reproducing heads in the respective channels; means for determining an optimum relationship from the said relationships; and means for determining further identifying data based on the optimum relationship and for supplying the further identifying data to the respective channels.

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