System comprising a magnetic-tape cassette and a magnetic-tape apparatus, and magnetic-tape cassette, tape-cleaning means and tape cleaning element for use in the system

摘要

A system comprising a magnetic-tape cassette (21) and a magnetic-tape apparatus for recording and/or reproducing information in digital form on/from a magnetic tape (29), the information being stored in a plurality of parallel longitudinal tracks on the magnetic tape in successive information blocks in the longitudinal direction of the magnetic tape, comprises error correction means (19) for correcting read errors in the digital information read from the magnetic tape. The error-correction means (19) are capable of correcting a maximum number of n successive information blocks on the magnetic tape. The magnetic-tape cassette has at least one tape-cleaning means (39, 41) comprising at least one tape-cleaning element (43, 45) having an active surface which at least in operation is in contact with a coating side of the magnetic tape (29) and in a direction parallel to the longitudinal axis of the magnetic tape has a dimension smaller than the overall longitudinal dimension of two times n information blocks. As a result of this, the error correction means (19) are capable of at least substantially correcting read errors which occur as a result of soiling of the magnetic tape by the tape-cleaning means (39, 41).