Automatic head height control apparatus

Details Automatic head height control apparatus Automatic head height control apparatus

G - Physics

11

B

341/97, 352/21.1

G11B 21/10 (2006.01) G11B 5/56 (2006.01) G11B 5/588 (2006.01)

Patent

CA 1150830

S01286 S80P27 AUTOMATIC HEAD HEIGHT CONTROL APPARATUS ABSTRACT OF THE DISCLOSURE In a video tape recorder which employs a rotary magnetic head secured on a deflectable device, such as a bi-morph leaf, to dynamically perform head tracking during reproduction of previously recorded tracks regardless of the tape transport speed; the height of the magnetic head is detected during recording to produce a feedback control signal which electrically adjusts the height of the magne- tic head by deforming the bi-morph leaf to overcome hystere- sis deflection of the bi-morph leaf so that the magnetic head is returned to and maintained at a normal height during recording. --i--

347579

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