DE2760204

A magnetic head, rotating at high speed in a reproduce relationship with a magnetic tape, is supported on the free end of a piezoelectric bender element. The bender element is caused to vibrate between two limits at a fixed frequency (dither) to determine the instantaneous position of the magnetic h...

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Bibliographic Details
Main Authors RAVIZZA, RAYMOND, F., CUPERTINO, CALIF., US, WHEELER, JAMES, R., BELMONT, CALIF., US
Format Patent
LanguageEnglish
Published 05.11.1987
Edition4
Subjects
CONTROLLING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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Summary:A magnetic head, rotating at high speed in a reproduce relationship with a magnetic tape, is supported on the free end of a piezoelectric bender element. The bender element is caused to vibrate between two limits at a fixed frequency (dither) to determine the instantaneous position of the magnetic head relative to a track of data recorded along the tape. A feedback servo provides continuous adjustment of the position about which the transducer is vibrated so as to maintain the magnetic head in an optimum reproduce relationship with respect to the track.
Bibliography:Application Number: DE19772760204