G - Physics – 11 – B
Patent
G - Physics
11
B
352/21.1
G11B 5/00 (2006.01) G11B 5/588 (2006.01)
Patent
CA 1119294
ABSTRACT OF THE DISCLOSURE In a video signal reproducing system, a head-position control circuit includes a magnetic head scanning a magnetic recording medium for recording and reproducing signals; a head-support member including a piezo-ceramic element and . supporting the magnetic head, provided in a rotary part; a rotary transformer including a primary coil provided in a stationary part and a secondary coil provided in the rotary part; a control signal generating means for producing a track- ing control signal which corresponds to the signal due to the mis-tracking of the magnetic head relative to a predetermined section of the recorded track, the head-support member being responsive to the tracking control signal to displace the magnetic head transversely with respect to the track section to maintain substantial alignment between the magnetic head and the track section; means for supplying the tracking control signal to the primary coil of the rotary transformer; and a control signalprocessing means connected between the secondary coil of the rotary transformer and the head-support member.
309835
Gowling Lafleur Henderson Llp
Sony Corporation
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