Apparatus for magnetically recording digital data

Details Apparatus for magnetically recording digital data Apparatus for magnetically recording digital data

G - Physics

11

B

G11B 5/008 (2006.01) H04N 7/26 (2006.01) H04N 9/804 (2006.01) H04N 9/806 (2006.01)

Patent

CA 2054392

A digital VTR is provided with a block segmenting circuit for converting an input digital picture signal into data segmented into blocks of picture elements, an encoding circuit for compressing and encoding the output data of the block segmenting circuit block-by-block, a channel encoding circuit for channel encoding the encoded output data from the encoding circuit, an audio signal encoding circuit for encoding an input digital audio signal, and an additional code generating circuit for generating an additional control code which includes subdata. The encoded picture data from the channel encoding circuit, the encoded audio data output from the audio signal encoding circuit, the additional control code and pilot signal data for tracking are recorded in skewed tracks traced on a magnetic tape by a magnetic head or heads mounted on a rotary drum, with each skewed track having pilot signal data recorded at least adjacent the end portion of the track at which the magnetic head enters into contract with such track, subdata recorded at the other end portion at which the magnetic head leaves the track, and the picture data and the audio data recorded at an intermediate portion of the track, so that both picture data and audio data can be reproduced with high quality while the subdata can be played back with relatively high accuracy.

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