G - Physics – 11 – B
Patent
G - Physics
11
B
352/21.1, 352/30
G11B 19/02 (2006.01) G11B 5/53 (2006.01) G11B 5/56 (2006.01) G11B 5/588 (2006.01)
Patent
CA 1118096
SO1146 S79P13 MAGNETIC HEAD ASSEMBLY FOR VIDEO TAPE RECORDER ABSTRACT OF THE DISCLOSURE A magnetic head assembly for a video tape recorder includes a piezo-electric support, preferably constituted by a bi-morph leaf or leaves, supported at one end, for example, on a rotary portion of a tape guide drum, and a magnetic head mounted at the other end of the piezo-electric support, and the piezo-electric support has two pairs of first and second electrodes secured on opposed major surfaces, respectively, of the support and extending in the direction between the ends of the support, that is, in the lengthwise. direction of the latter, with such pairs of electrodes being parallel and spaced from each other in the direction across the support. Thus, by applying suitable control voltages between the first and second electrodes of the two pairs thereof, the piezo-electric support can be made to flex or bend longitudinally and/or torsionally, for example, for correcting tracking errors and/or for varying the azimuth angle, respectively, of the mounted head.
319700
Gowling Lafleur Henderson Llp
Sony Corporation
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