Auto-tracking control system for use in apparatus for reproducing a video signal recorded in successive parallel tracks on a recording medium
AssigneeSony Corporation
InventorEtsuro Saito
Life of this patent
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Abstract
An auto-tracking control system for use in a helical scan video tape apparatus for reproducing video signals recorded in skewed parallel tracks on a video tape includes a magnetic reproducing head mounted on an electro-mechanically deflectable head support. The head support has a first portion responsive to high frequency dithering or wobbling control signals and a second portion responsive to low frequency skew or mistracking control signals.
Claims28
Means for deflecting a reproducing means relative to a scanning path in a video tape recorder comprising:
- first deflectable means deformable by application thereto of a control signal and being particularly responsive to frequencies of a first range;
- second deflectable means also deformable by application thereto of a control signal and being particularly responsive to frequencies of a second range substantially different from said first range, and applying means for applying deflections of said first and second deflectable means to said reproducing means.
An auto-tracking control system for use in apparatus for reproducing a video signal recorded in successive parallel tracks on a recording medium comprising:
- signal reproducing means for scanning said recording medium to reproduce said recorded video signal;
- deflectable means for supporting and deflecting said signal reproducing means, said deflectable means having at least first and second deflectable portions, said first deflectable portion being deflectable in response to a first control signal having a first characteristic and being relatively non-responsive to a second control signal, said second deflectable portion being deflectable in response to a second control signal having a second characteristic and being relatively non-responsive to said first control signal;
- said first and second characteristics being substantially different frequency components;
- and control signal generating means for generating said control signals.
Dependencies are inferred from the claim text.