IDENTIFICATION OF LATERALLY POSITIONED SERVO BANDS EMPLOYING DIFFERENTIATING CHARACTERISTICS OF SERVO PATTERNS

摘要

Identification Of Laterally Positioned Servo Bands Employing Differentiating Characteristics of Servo PatternsABSTRACTTape (10) has separate servo bands (11, 12, 13 and 14) of patterns positioned laterally across the tape ( 10), and the patterns of each separate servo band (11, 12, 13 and 14) have at least one differentiating characteristic with respect to patterns of another of the separate servo bands (11, 12, 13 and 14). These differentiating characteristics allow identification of the separate servo bands (11, 12, 13 and 14). For example, the patterns of a separate servo band (11, 12, 13 and 14) have differing azimuthal orientations of detectable transitions with respect to another servo band (11, 12, 13 and 14), such as being laterally inverted. In another, variations in the width of gaps of patterns are made with respect to other servo bands (11, 12 13 and 14). Variations can also be made in the number of the detectable transitions of patterns.Fig. 1.