G - Physics – 11 – B
Patent
G - Physics
11
B
352/21.3
G11B 5/55 (2006.01) G11B 5/58 (2006.01) G11B 5/584 (2006.01) G11B 5/596 (2006.01) G11B 21/08 (2006.01) G11B 27/30 (2006.01)
Patent
CA 1232065
METHOD AND APPARATUS FOR POSITIONING TRANSDUCERS BY DIGITAL CONVERSION OF ANALOG-TYPE SIGNALS ABSTRACT OF THE DISCLOSURE 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 it 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 trans- ducer head in a representative manner.
476933
Lum Francis
Sokolik Edmund L.
Borden Ladner Gervais Llp
Irwin Magnetic Systems Inc.
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