G - Physics – 11 – B
Patent
G - Physics
11
B
352/30.2, 352/21
G11B 21/10 (2006.01) G11B 5/588 (2006.01)
Patent
CA 1111961
ABSTRACT OF THE DISCLOSURE A method and apparatus for correcting tracking errors of a transducer which scans successive, parallel, adjacent record tracks of n record medium so as to reproduce information signals therefrom. The information signals, which may comprise video signals, are recorded in the parallel record tracks, and pre- determined signals also are recorded at predetermined locations in the information signals. When the information and predeter- mined signals are played back, at least one cross-talk predeter- mined signal which is recorded in at least one adjacent track also is played back. The cross-talk predetermined signal is detected and a control signal is produced response to the level of the detected cross-talk predetermined signal. The position of the transducer with respect to the track being scanned thereby is adjusted in accordance with the control signal. In one embodiment, the control signal is recorded at a predetermined location in each horizontal blanking interval of the video signals; and the horizontal blanking intervals which are recorded in one track are displaced with respect to the horizontal blanking intervals which are recorded in the adjacent track. This displacement of the horizontal blanking intervals, and thus the predetermined signals, in adjacent tracks facilitates the detection of the cross-talk predetermined signals which, for example, may comprise pilot signals. -i-
286258
Kambara Masahiro
Kubota Yukio
Morio Minoru
Okada Hidehiko
Gowling Lafleur Henderson Llp
Sony Corporation
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