SERVO CONTROL

摘要

A tape head includes a set of one or more segments, wherein each segment of the set is individually movable with respect to a frame; each segment of the set comprising at least one of a write element configured to write data to a tape and a read element configured to read data from the tape; and each segment of the set comprising a further read element having a width transverse to a motion direction of the tape being at least a width of the write element of the segment or, in the event that no write element is comprised in the segment, of a write element of a different segment.

主权项

1. A structure, comprising:
a tape configured to store data, the tape having a longitudinal and a transverse extension, the tape further comprising:
one or more data bands extending longitudinally along the tape and representing areas on the tape for storing data, each data band comprising multiple of data tracks extending longitudinally along the tape;two or more servo bands extending longitudinally along the tape and representing areas of the tape for storing servo information, each data band being arranged between two adjacent servo bands;at least one servo area arranged in one or more of the data bands which servo area extends longitudinally at a length less than the longitudinal extension of the tape, and extends transverse across multiple data tracks of the data band, wherein:each data track that contributes to a servo area contains a servo pattern within the servo area;each servo pattern comprises a repetition of a basic pattern with a frequency f0*n and n being an integer;at least x adjacent data tracks contain a different servo pattern each, with x>2; andin each data band, multiple identical servo areas are arranged at defined longitudinal positions of the tape, each servo area spans the entire data band assigned, and n is a prime number.