H - Electricity – 04 – N
Patent
H - Electricity
04
N
352/18.3
H04N 5/782 (2006.01) G11B 5/588 (2006.01) G11B 5/592 (2006.01)
Patent
CA 1127294
S01046 S78P60 MAGNETIC HEAD TRACKING CONTROL SYSTEM ABSTRACT OF THE DISCLOSURE An an apparatus for reproducing video or other information signals recorded in successive parallel tracks extending obliquely on a magnetic tape or other record medium which is adapted to be longitudinally advanced, and with each of the tracks containing a positional signal, for example, constituted by a vertical synchronizing signal, at a pre- determined position along the respective track, a magnetic head or transducer is movable in the direction generally along the tracks for reproducing the information and positional signals recorded therein and is mounted or supported by a bi?morph leaf or other transducer deflecting device which is operative, in response to the reception of an electrical drive signal, for deflecting the transducer or head in a direction transverse to the direction along the tracks, a circuit detects a time base error of the positional signal reproduced from each of the tracks, and a control circuit for providing the electrical drive signal to the transducer deflecting device is effective to vary such drive signal in accordance with the detected time base error. A time base variation of the reproduced signals is further detected, for example, in respect to the successive horizontal synchronizing signals of the reproduced video signals, and the electrical -1- drive signal for the transducer deflecting device is also varied in accordance with such detected time base variation. -2-
321872
Sakamoto Hitoshi
Wakisaka Yoshiaki
Gowling Lafleur Henderson Llp
Sony Corporation
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