Method and apparatus for positioning transducers by digital conversion of analog-type signals
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United States of America Patent
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Feb 24, 1987
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N/A
app pub date -
Apr 5, 1984
filing date -
Apr 5, 1984
priority date (Note) -
Expired
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Abstract
Apparatus and method for decoding of transducer head-positioning information which has been recorded on data-storage media, in particular magnetic tape, and for use of the decoded information to position a transducer head, wherein the transducer head reads the recorded information and its output signals are sampled at predetermined times to determine their magnitude and a digital representation of such magnitude is obtained by timing an interval during which a reference source increases at a known rate from a first value to a second value whose difference corresponds to the detected magnitude of the transducer output signals. The timed interval is outputted in the form of a digital count value which is thus representative of the head-positioning information read out from the data storage media, and the digital signal provided by such count value is then used in positioning, or repositioning, the transducer head in a representative manner.
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